洛河槐沟水电站工程项目可行性研究报告

Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 目 录 第一章 综合说明 . 1 第二章 水文、泥沙 . 17 第三章 工程地质 . 26 第四章 工程任务和规模 . 37 第五章 工程选址、工程总布置及主要建筑物 . 47 第六章 水力机械电工及金属结构 . 54 第七章 消防、采暖、通风 . 70 第八章 施工组织设计 . 71 第九章 水库淹没处理、工程永久占地及环境影响评价 . 77 第十章 工 程投资估算及资金筹措 . 79 第十一章 经济评价 . 81 附件： 1、财政部、国家税务总局文件财税字 94004号关于调整农业产品增值税税率和若干项目征免增值税的通知 2、陕西省物价局陕价管调发 20031号关于调整陕西电网电力Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 价格的通知 3、陕西省电力工业局农电局文件陕电农地字 199801 号关于五峰等三座水电站接 入电力系统的批复 4、渭南市计划委员会渭计发 1998311号关于对白水县洛河槐沟水电站工程立项 5、白水县人民政府白政发 199812 号关于开发小水电的优惠政策的决定 第一章 综合说明 1.1 前言 槐沟河水电站工程位于陕西省白水县北部的门公乡槐沟河村，是白水县洛河规划中的一座梯级电站。上游衔接规划的张家船水电站，其尾水和已建的王莽寨水电站衔接。坝址以上控制流域面积 21246km2，占全流域面积的 79%，是继王莽寨水电站之后洛河梯级开发中装机容量大、条件优越，便于近期实施的水电站之一。 1.2 气象、水文特征 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 1.2.1 流域概况 洛河为渭河左岸的一级支流，发源于陕西省定边县白于山南麓，流经我省的吴旗、志丹、甘泉、富县、洛川、黄陵、白水、蒲城、澄城，于大荔县东南注入渭河；干流全长 680km，流域面积 26905km2，河道平均比降 1.5 ，流域呈羽毛形。 坝址位于白水县槐沟河村东北约 1km 的河道转弯处，厂房位于铁桥下游约 300m，距五峰水电站 17.3km。坝址以上控制流域面积 21246km2，占全流域面积的 79%，占注 氵状 头水文站控制流域面积 25154km2的 84.5%。洛河干流分别在王家村 、三眼桥附近进出白水县境，县境内河道落差175m，河长 59.5km，比降 2.9 。流域地貌系由陕北黄土高原和渭北黄土台塬组成，流域植被较差，水土流失严重。 1.2.2 气象特征 流域多年平均降水量在 400 650mm范围，由北向南递增，降水量年际变化大，年内分布不均， 7 9月降水量约占年降水量的 50%左右。多年平均水面蒸发量为 1000 1100mm。 多年平均气温在 11.4，由北向南递增，绝对最高气温 39.4，绝对最低气温 -16.7。冬季盛西北风，夏季多东南风，年平均风速 3.4m/s，Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 实测最大风速为 25m/s，据白水县气象站统计，初霜 10月下旬，终霜 3月下旬，无霜期 211天。土壤冰冻以 12 2月最为严重，最大冻土层厚度为 0.69m。河流封冻时间 11月下旬 2月上旬，解冻时间为 2月中旬到 3月上旬。 1.2.3 水文特征 槐沟河水电站坝址处无水文测站，而在其上下游分别有 1952年建站的交口水文站和 1933年建的 氵状 头水文站。由于洛河径流主要来源于交口以下的中游地区，且槐沟河又与状头同属于一个水文气候区，其降水、径流、暴雨洪水等特性相一致，所以采用状头水文站作为槐沟河水文计算 的参证站。 氵状 头水文站在 1933 1998年 66年实测资料中，最大年径流量为 20.15亿 m3（ 1964年），最小年径流量为 4.383亿 m3（ 1936年），最大与最小值之比为 4.6，多年平均径流量为 8.77亿 m3。按面积法换算到槐沟河水电站断面，多年平均径流量为 7.26亿 m3，相应平均流量为 23.5 m3/s。 槐沟河水电站为 4级建筑物，其洪水标准及洪峰流量为： 大坝：设计洪水 30年一遇，相应洪峰流量 Q=5400m3/s 校核洪水 200年一遇，相应洪峰流量 Q=10600m3/s Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 厂房：设计洪水 20年一遇，相应洪峰流量 Q=4380m3/s 校核洪水 100年一遇，相应洪峰流量 Q=8610m3/s 1.2.4 泥沙 洛河为多沙河流，水沙关系基本是水大沙大。据 氵状 头站实测泥沙资料统计，最大年输沙量为 22000 万 t（ 1966 年），最小年输沙量为 1400万 t（ 1939年），多年平均悬移质输沙量为 8524万 t，汛期为 7848万 t，占年输沙量 92%，最大含沙量可达 1340kg/m3（ 1945年 9月 26日），平均含沙量 97.1kg/m3。 1.3 工 程地质 槐沟河水电站为小型电站，地处于鄂尔多斯台向斜南缘边部，南与渭河地堑北部相邻，为一缓倾单斜构造区，无深大断裂通过，第四纪以来属缓慢上升区，历史上未发现大于 4级地震，根据中国地震烈度区划图，地震基本烈度为度区。 槐沟河水库库容小，回水高程低库区无村庄及重要矿产。仅有零星耕地。基本无淹没、浸没问题。水库两岸无大的滑坡崩塌体及泥石流冲沟，岸边再造及固体径流来源亦无较大影响。 为充分利用设计水头及隧洞引水线路的尽量减短，坝址在河湾转弯Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 地段。坝址处河床基岩坚硬裸露，岩石弱风化较浅，开挖深度不大。左岸坝肩较 陡，岩石坚硬，左岸有河谷阶地为基座阶地，上覆黄土及砂砾石应挖除。坝基坝肩无断层，不会产生大的坝基及坝肩的渗漏问题。基坑开挖中应挖除弱风化带。 本工程引水隧洞通过地段为紫红色长石石细砂岩，该岩层之上为泥质粉砂岩及泥岩，局部可见砂岩中夹泥砂砾岩透镜体。隧洞穿过地段为基本稳定岩体，虽洞线与岩层夹角仅 40 20，但属单斜构造，断裂不甚发育，虽有基岩裂隙水，但水量不丰，工程地质条件沿属简单。隧洞进出口洞脸边坡开挖较陡，应注意施工安全，如需锚固时应及时锚固处理。 压力前池地段基岩较坚硬，考虑到与引水钢管边坡相接，应 及时进行防渗及衬砌砼处理，以免漏水。 厂房地基地质条件较简单，因结构需要，开挖深度较大，应注意施工边坡的稳定性，并预先准备数量足够的排水措施。尾水渠地段基岩以上有第四系松散堆积层，开挖后应及时砼衬砌。 1.4 工程任务和规模 槐沟河水电站工程位于白水县境内洛河干流上，该段河流（王家河Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 狄家河）长 40.9km，可开发量为 16.5MW，规划为五级开发：五峰、张家船、槐沟河、王莽寨、狄家河等。已开发了王莽寨水电站，装机容量 2 1.6MW，在建的五峰和待开发的狄家河、槐沟河等电站是开发条件均较优越的电源点。 本工程 为无调节的径流式低坝引水式电站。 工程建成后，接入本地电网，可以为电网吸收年电量 3400万 kwh。 电站设计引用流量为 27m3/s，相应下游水位 544.6m。正常尾水位543.8m。 本电站设计装机容量为 6600kw，年发电量为 3400 万 kwh 利用小时数大于 5000h。 1.5 工程选址、工程总布置及主要建筑物 1.5.1 工程布置选择 本工程是继五峰水电站下游规划的张家船水电站之后的又一个梯级电站。为获得最大的发电水头，首部枢纽采用溢流坝顶加 4m橡胶坝的方案。设计原则是：正常情况时，满足梯级电站的运行要求 ；校核情况时，橡胶放水塌落后泄洪，库区回水不影响库区内西延铁路的安全。 在现场踏勘时曾初步选定了两个坝址、一个厂址： Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 上坝址：位于西延铁路槐沟河隧洞下游 200m处； 下坝址：位于槐沟河村上游 1km处洛河河道转弯出口处；距上坝址约 5.1km； 厂址：位于西延铁路与马家船隧洞下游约 200m处，在下游王莽寨水电站库尾以上。 据此拟定了两个方案作出比较： （ 1）上坝址方案：在上坝址处建坝，引水发电系统主要包括上无压隧洞（长约 990m）；跨河渡槽（长约 115m），下无压隧洞（长约 1140m）。 （ 2）下坝址方 案：在下坝址处建坝，引水发电系统主要包括无压隧洞（长约 856.1m），引水明渠 109m。 两方案比较，由于坝上移，按洛河河道平均比降 1.5 计算，河床升高 H=5100 1.5 =7.65m；拦河坝工程量减小；同时，由于库区淤积回水的影响随距离的减少而减小，经估算，上坝址处溢流坝顶高程可比下坝址处溢流坝顶高程提高约 1m。但是，上坝址方案的引水系统远较下坝址方案复杂，引水线路长，水头损失加大；输水建筑物多，造价大幅度增高；同时所需的地形地质勘探工作量也大幅度增加。下坝址方案引水系统简单，线路短，总体工程量较上 坝址方案减小很多。经技术经Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 济综合比较，本阶段选定下坝址方案为推荐方案。 1.5.2 推荐方案的各主要建筑物布置 本电站为低坝引水式无调节电站，根据防洪标准 GB50201 94，本工程为小型四等，主要建筑物级别为四级，次要建筑物和临时建筑物级别为五级。 挡水坝设计洪水标准 30年一遇，相应洪峰流量 5400m3/s；校核洪水标准 200年一遇，相应洪峰流量 10600m3/s。 厂房设计洪水标准 20年一遇，相应洪水流量 4380m3/s；校核洪水标准 100年一遇，相应洪水流量 8610m3/s。 （ 2）拦河坝由河床溢 流坝段和右岸副坝组成，河床溢流坝段为浆砌石实用堰，溢流坝顶高程 570m。最大坝高 15.5m，坝顶长 145m；溢流坝顶部布置 3孔泄洪闸和橡胶坝，顶高程 574m。采用面流消能，坝下游采用干砌石防护，宽度为 145m，长度为 25m。右岸副坝为浆砌石重力墙后回填土的组合坝，设计为非溢流坝，坝顶高程 582.5m，坝长 90m。 （ 3）冲砂槽与引水渠道在进口部分结合布置在左岸，排沙闸位于引水口下游侧，闸门孔口尺寸为 4m 4m（宽高）。 （ 4）发电引水系统布置于左岸，由无压隧洞、明渠、压力前池和压Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 力管道几个部分组成。引水口 底板高程 570.5m，设置拦污栅和工作闸门各一道，孔口尺寸为 4m4m（宽高）。无压引水隧洞为城门洞形，净断面尺寸 4m5m，比降 1/2000，长 856.1m，设计引用流量 29.1m3/s。引水明渠长 109m，断面为矩形，尺寸 4m5.5m，比降 1/1500。压力前池长40m，宽 20m，深 13m，池内正常水位 573.59m；在池左侧边墙处设置有宽 10m的溢流侧堰，堰顶高程为 573.6m；池底部设置有两根 DN800mm的冲砂（放空）管。压力管道布置为单机单管供水，采用承压墙内现浇钢筋砼管形式，管径 1.8m， 管内流速 3.81m/s，单管长 32.1m。 （ 5）电站厂房布置在左岸，为岸边地面明厂房。副厂房位于压力管道进口承压墙后背坡，布置在主厂房上游侧，安装间布置在主厂房右端。主厂房长 31.82m，宽 10.2m，其中安装间长 8.84m，高 9.6m，主机间长22.98m，高 14.2m。主机房内安装 3台 HLA551C LJ 120型水轮发电机组，单机容量为 2200kw。安装高程 545m，单机引用流量 9.06m3/s。副厂房设计总长 31.82m，安装间高程 553.65m，发电机层高程 549.45m，分两层布置，顶层地坪与 安装间相同，宽 6.9m，高 5.6m，底层地坪与机房相同，宽 4.2m，高 4.2m。 1.6 机电及金属结构 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 1.6.1 主要机电设备的选型和布置 根据电站的装机容量，水头范围以及电站在系统中的地位和运行方式，选定了 3台混流式水轮发电机组： 水轮机： HLA551C LJ 120 3台 Q设 =29.1m3/s Hmax=28.99m Hmin=27.77m Hp=28.38m 发电机： SF2200 16/2600 3台 调速器： YDT 1800 3台 电动双钩桥式起重机： 16/3.2t 1台 1.6.2 接入系统方式及主接线方案 根据白水县电网的现状及规划情况，并应业主的要求，电站拟 35KV一回出线接入系统，变压器容量为 SF10 10000/35。 通过技术经济比较确定本电站采用：发电机机端接成单母线接线，设两台三相双线图变压器分别开质为 35KV和 10KV两级电压， 35KV出线回， 10KV出线一回的主接线方式。 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 1.6.3 金属结构选型和布置 溢流坝段堰顶设 15 6.3m泄洪闸 3孔。 左岸冲沙闸处设置 1孔 4m 4m冲沙孔，采用平板闸 门。 引水隧洞进水口设置拦污栅 1道，在拦污栅下游侧设置平板工作闸门 1道；在压力前池电站进水口设置拦污栅 1道共 3套，快速闸门 3套；设置 D=800mm闸阀冲沙。在尾水管出口设置尾水门槽 3孔，共用平板尾水闸门 2套。 1.7 施工 槐沟河水电站位于陕西省白水县门公乡槐沟河村境内的洛河干流上。电站坝址距白水县城 30km。其中，白水县城到门公乡长 22.5km，为已有的三（四）级沥青公路，门公乡到槐沟河村长 9km（ 4km为四级沥青路面， 5km为可供小型拖拉机通行的盘沟小道），为已有的乡村小路。贺苏 坝址临时施工道路已开通 。槐沟河村距坝址 1km，为人行小道。西（安） 延（安）铁路从村旁经过。电站对外交通便利。 槐沟河水电站为径流引水式发电工程。电站主要建筑物由浆砌石拦河大坝（最大坝高 21m），引水隧洞（长 856.1m，横断面尺寸 4 5m），引水明渠长 109m，断面尺寸 4 4.5m）压力前池、引水管道和厂房等组Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 成。电站装机容量 6600kw（ 3台单机容量为 2200kw的混流式机组），主要工程量是：土方明挖 2542m3，石方明挖 36914m3，石方洞挖 26930m3，砼 35604m3，钢筋、钢材 840T，浆砌石 61029m3，氯丁 胶 14.6T。 1.7.1 施工导流 结合大坝、厂房等主要建筑物的布置特点，并考虑到地形、地质、水文等因素的影响，大坝施工期采用明渠导流方式，厂房施工期采用原河床导流方式。 1.7.2 施工交通及施工总布置 施工交通 对外交通主要工程量有：槐沟河村至门公乡 5km 长的盘山道拓宽。贺苏 槐沟河临时道路整修，槐沟河村至坝址、厂址约 3km长四级公路，另外还包括一座长约 400的钢筋砼板桥（设计标准为汽 20挂 80）。 场内交通包括 2km长施工临时道路和坝区一座长约 40m的临时桥梁。 施工总布置 坝区拌合系统 设于坝下游右岸的滩地上，由 3 台 1.2m3的强制式拌合机， 500m2的散装水泥库和成品料堆组成，厂区拌合系统位于厂房下游的左岸滩地上，由 2 台 1.2m3强制式拌合机， 300m2的散装水泥库和成品Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 料堆组成。 1.7.3 施工总进度 本工程施工总工期 24个月，其中，施工准备期 8个月，主体工程施工期 14个月。发电收尾期 2个月。 施工准备期从第 1年 1月正式开工至第 1年 9月初主河床截流。该期内主要施工项目有：导流明渠、右副坝、引水洞开挖，厂区开挖及基础砼。汛期停工。 主体工程施工期从第 1年 9月初到第 2年 12月底第 1台机组 发电。该期内主要施工项目有：溢流坝段，引水洞衬砌及灌浆，厂房及前池主体砼，金属结构安装，压力钢管及第 1台机组安装等。汛期大坝停工。 1.8 水库淹没处理、工程永久地和环境影响评价 1.8.1 水库淹没处理及工程永久占地 根据业主提供的资料，在库区内相应回水高程以下无居民和耕地，且在水库正常蓄水位选择中充分考虑了西延铁路的防洪问题，使铁路具有 200 年一遇的防洪标准，因此水库不存在移民安置、土地赔偿、铁路淹没等问题。 1.8.2 环境影响评价 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 本电站开发任务单一，兴建该电站对环境的有利影表现在发电站的发电效益和 对库区气候的改善等方面；其不利影响表现在施工期“三废”排放及施工占地影响。通过地方政府和施工承包方采取相应安置和防护措施后，上述影响是可以消除的。 因此，从环境影响角度年，没有制约本工程开发的重大环境问题，兴建本电站是可行的。 1.9 工程投资估算 1.9.1 编制依据 陕西省计委陕计项目 20001045号文件陕西省水利水电工程设计概算编制办法及费用标准以及陕西省水利水电建筑工程预算定额等（以下简称“ 2000编制办法”及“定额”）。 1.9.2 主要技术经济指标 该工程总投资 6000万元，固定资 产建设投资 5475万元，预备费 450万元，工程总工期 2年，建设期还贷利息 75万元。 1.10 经济评价 根据投资估算，槐沟河水电站总投资 6000 万元，固定资产投资为5925万元。计算期采用 20年，其中建设期 2年，生产期 18年，在还贷Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 期上网电价按 0.28元 /kwh计算，还清贷款后的年发电利润为 625.3万元。 电站还款资金包括利润和折旧费等，未分配利润可全部都用于还款；这样，电站投入运行后的第 8年可还清固定资产贷本息，满足还贷要求，另处，本工程仅在建设期的负债率较高，但随着机组投入运行，资产负债率很快下降。 在还清建设费用贷款本息后，资产负债率很低，并呈逐年下降趋势，计算期末趋于零。说明本项目的财务上风险小，偿还债务能力较强。 总之，按资金筹集货款年利率 5.76%及 9年偿还期（含建设期 1年），其财务内部收益率为 11.58%，大于财务基准收益率 8%，同时，财务净现值为 645万元，大于零，说明本工程在财务上是可行的。 1.11 存在问题及今后工作建议 （ 1）鉴于本阶段设计成果要求紧迫，时间短促，测量资料、地勘资料不全，下一阶段进一步补充推荐方案坝址、引水洞线、压力前池、压力管道和电站厂房等部必须进行必要的地质勘探和 方案比较，为设计提供可靠资料。 （ 2）本电站装机容量限于时间和资料方面的限制暂按最低方案提Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 出，初步设计将作进一步论证。 （ 3）由于计算橡胶坝放空塌落泄洪时流量系数是一个关键因素，而本阶段作过坝洪不计算时限于时间和资料不齐全等原因，所选用的流量系数是参考常规工程的取值。为确保库区西延铁路的安全，建议在下阶段应作进一步试验和仔细研究或进行充分的调研以核实测量系数。 （ 4）由于厂址下游王莽寨电站相当近，建议下阶段业主对王莽寨电站库区补充必要的测量工作为初步设计提供准确可靠的资料。 1.12 工程特性表 第二章 水 文、泥沙 2.1 流域概况 洛河为渭河左岸的一级支流，发源于陕西省定边县白于山南麓，干流经我省的吴旗、志丹、甘泉、富县、洛川、黄陵、白水、蒲城、澄城于大荔县东南注入渭河；全长 680km，流域面积 26905km2，河道平均比降 1.5 ，流域呈羽毛形。 坝址位于白水县槐沟河村东北约 1km 的河道转弯处，厂房位于铁桥下游约 300m，距五峰水电站 17.3km。坝址以上控制流域面积 21246km2，Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 占全流域面积的 79.0%，占 氵状 头水文站控制流域面积 25154km2 的84.5%。洛河干流分别在王家村、三眼桥附近进出 白水县境，县境内河道落差 175m，河长 59.5km，比降 2.9 。流域地貌系由陕北黄土高原和渭北黄土台塬组成，流域植被较差，水土流失严重。（见图 2 1） 2.2 气象 降水与蒸发：流域多年平均降水量 540mm，降水量年内分布不均，年际变化大， 7 9月降水量约占年降水量 50%左右。多年平均水面蒸发量为 1000 1100mm。 气温：本流域年平均气温 11.4。据白水县气象站资料统计，最高气温 39.4，最低气温 -16.7。 风速、风向：冬季盛行西北风，夏季多为东南风。多年平均风速3.4m/s，实测最大风速为 25m/s（ NNW）。 霜、冻：据白水县气象站统计，初霜 10月下旬，终霜 3月下旬，无霜期 211天。土壤冰冻以 12 2月最为严重，最大冻土层厚度为 0.69m。 水温：据交口河水文站统计，多年平均水温 13.4，最高水温多发生在 7、 8月份，其平均值为 25.3，最高水温为 31.2；最低水温 0，一般发生在 11月 1月。 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 冰情：据交口河水文站资料，初冰时间为 10月下旬到 12月上旬；终冰时间为 2月下旬到 4月上旬；封冻时间为 11月下旬到 2月上旬；解冻时间为 2月上旬到 3月上旬；河道实际封冻天数最多为 94天，最少为1天 ，最大冻厚河心平均 0.32m，岸边 0.36m。 2.3 水文资料 槐沟河水电站坝址处无水文测站。而在其上下游分别有 1952年建站的交口水文站和 1933年建站的状头水文站。由于洛河径流主要来源于交口以下的中游地区，且槐沟河又与状头同属于一个水文气候区，其降水、径流、暴雨洪水等特性相一致，所以采用状头水文站作为槐沟河水文计算的参证站。 根据水利水电工程水文计算规范，可以将 氵状 头径流资料按流域面积比例法，移用到槐沟河水电站上。 依据 氵状 头站 1933 1998年 66年多年平均径流量 8.77亿 m3,乘以槐沟河 与 氵状 头流域面积比例系数 0.845，即得槐沟河水电站多年平均径流量为 7.41亿 m3，相应多年流量为 23.5 m3/s。 2.4 径流 水流域径流主要由降水补给，降水受大气环流和季风的影响，河川Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 径流年际变化大，年内分配不均匀。 氵状 头水文站在 1933 1998 年 66 年实测资料中，最大年径流量为20.15 亿 m3（ 1964 年），最小年径流量为 4.38 亿 m3（ 1936 年），最大与最小值之比为 4.6，多年平均径流量为 8.59亿 m3，按面积比拟法换算到槐沟河水电站断面，多年平均径流量为 7.41亿 m3，相应多年平均流 量为23.5m3/s。 2.4.1 年径流计算 年径流频率计算成果采用 氵状 头站 1933 1998年 66年的水文系列进行计算，采用 P 型曲线，均值 W=8.59亿 m3， CV=0.34， CS=2.5CV。槐沟河电站按面积比拟法求得，其均值 7.26 亿 m3， CV与 CS与 氵状 头相同。年径流频率计算成果见表 2 1。 氵状 头站年径流频率曲线见图 2 2。 氵状 头站不同频率年径流量表 表 2 1 P（ %） 1 2 5 10 15 20 50 75 85 90 95 径流量（亿 m3） 17.09 15.81 14 12.54 11.6 10.82 8.16 6.44 5.8 5.24 4.64 流量 54.2 50.1 44.4 39.8 36.8 34.3 25.9 20.4 18.4 16.6 14.7 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - （ m3/s） 槐沟河电站坝址不同频率年径流量表 表 2 2 P（ %） 1 2 5 10 15 20 50 75 85 90 95 径流量（亿 m3） 14.44 13.36 11.83 10.6 9.8 9.14 6.9 5.44 4.9 4.43 3.92 流量（ m3/s） 45.8 42.4 37.5 33.6 31.1 29 21.9 17.2 15.5 14 12.4 2.4.2 代表段选择 按规范规定，代表段均值、变差系数应与长系列接近。选择 氵状 头站1966 1998 年 33 年径流系列作为代表段。 氵状 头站 33 年径系列均值为8.58亿 m3， CV=0.29，与 1933 1998年长系列均值 8.59亿 m3， CV=0.34接近，且包括平、枯、丰水年，并且是两个完整地周期。由于计算技术的发展，本次采用 1954 1998年全部径流系列作为水能计算依据。 槐沟河电站坝址径流年内日分配采用 氵状 头站径流的年内 分配系数乘以槐沟河的年径流计算。 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 2.5 洪水 2.5.1 洪水特性及最大洪峰流量的采用 洛河流域的洪水系暴雨形成，而且，一般暴雨和局部暴雨居多。经对洛河交口 氵状 头河段 1952 年 1994 年 43 年洪水资料分析，洪峰流量与流域面积无明显关系。其中 13年洪水，年最大洪峰流量自上而下递增，占 30%；而 30 年洪水，年最大洪峰流量自上而下递减，占 70%。即多数年的洪水随面积增加而减小。槐沟河水电站是本河段梯级，且与 氵状 头站面积仅差 15.5%，因此，槐沟河水电站洪水，如同本河段五峰、狄家河等梯级一样，可以直接引 用 氵状 头洪峰流量频率计算成果。 槐沟河水电站年最大洪峰流量频率计算表见表 2 3， 氵状 头年最大洪峰流量频率曲线见图 2 3。 槐沟河水电站最大洪峰流量计算成果表 表 2 3 计算值 采用值 频 率（ P%） Q （ m3/s） CV CS Q （ m3/s） CV CS 0.5 1 2 3.3 5 10 20 50 1197 1.25 3 1200 1.4 3 10600 8610 6720 5400 4380 2810 1560 720 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - CV CV 2.5.2 槐沟河水电站设计洪水 槐沟河水电站 为 4级建筑物，其洪水标准及洪峰流量见表 2 4。 槐沟河水电站设计洪水 表 2 4 建筑物及断面 洪水标准 洪峰流量（ m3/s） 备注 大 坝 设计洪水（ P=3.3%） 30年一遇 校核洪水（ P=0.5%） 200年一遇 5400 10600 厂 房 设计洪水（ P=5%） 20年一遇 校核洪水（ P=1%） 100年一遇 4380 8610 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 根据洪水规律及施工期的防洪需要，对 11 3月、 11 4月及 11 5月等分期洪水进行了分析。采用 氵状 头站实测流量资料，在分期内选取最大值，分期设计洪水的统计参 数计算和适线原则与最大洪水计算相同。 各分期设计洪水频率计算成果见表 2 5，其频率曲线见图 2 4。 槐沟河水电站分期设计洪水计算成果表 表 2 5 分期 （月） 统计参数 频 率（ P%） Q CV CS/ CV 1 2 5 10 20 30 11 3 44 0.6 3 136 119 96 78 60 50 11 4 51 0.65 3 169 146 117 94 71 58 11 5 77 0.83 3 322 271 205 156 110 84 10 4 81 0.81 3 331 279 212 163 115 89 10 5 110 0.72 2.5 386 335 266 214 160 129 2.6 水位流量关系曲线 2.6.1 水位流量关系曲线 在坝址与厂址处，目前尚未无观测断面和水尺，现暂按实测当前水Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 位、反推流量、历史洪水调查水位及河床纵比降等，按照曼宁公式Q=1/n R2/3i1/2选用河床糙率， n=0.04， 以大小水（大水 6280m3/s，小水 6m3/s）控制，调整水力坡降绘制而成。 坝址水位流量关系曲线见图 2 5 厂址水位流量关系曲线见图 2 6 2.6.2 坝址、厂址水位流量关系线 根据坝址、厂址下游水位流量关系曲线查得各设计洪水位，列于表 2 6。 槐沟河水电站坝址、厂址下游设计洪水位 表 2 6 建筑物及断面 洪水标准 洪峰流量（ m3/s） 洪水位（ m） 大 坝 设计（ P=3.3%） 30年一遇 校核（ P=0.5%） 200年一遇 5400 10600 565.9 568.8 厂 房 设计（ P=5%） 20年一遇 校核（ P=1%） 100年一遇 4380 8610 553.9 556.2 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 2.7 泥沙 洛河为多沙河流，水沙关系基本是水大 沙大。据状头站实测泥沙资料统计，最大年输沙量为 22000 万 t（ 1996 年），最小年输沙量为 1400万（ 1939年），多年平均悬移质年输沙量为 8524万 t，汛期为 7848万 t，占年输沙量 92%，最大含沙量可达 1340kg/m3（ 1945年 9月 26日），平均含沙量 97.1kg/m3。 氵状 头站 1971 1980 年平均悬移移质颗粒级配列表 2 7、图 2 7。槐沟河水电站泥沙资料，均使用状头站统计成果。 氵状 头站历年悬移质颗粒级配表 表 2 7 平均小于某粒径沙重百分数 粒径级（ mm） 中数 粒径 平均粒径 0.07 9.6 0.010 14.1 0.025 30.3 0.050 64.9 0.10 96.3 0.25 99.7 0.5 99.9 1.0 0.039 （ mm） 0.039 (mm) 0.043 第三章 工程地质 3.1 概述 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 本工程勘测资料，系甲方提供的陕西省白水县槐沟河水电站工程地质说明书，该说明书是参考陕西省地矿厅水文地质二队蒲城县、白水县农田供水水文地质报告（ 1974 年 12 月），结合水库路线地质踏勘及坝址区、隧洞线路，厂房区地质剖面测绘所获得的资料编制的。岩石物理力学参数采用工程地质 类比法提出的建议值。 3.2 区域地质概况 3.2.1 地形地貌 槐沟河水电站位于北洛河中下游，属渭北低山沟谷黄土台塬区。地形切割较剧，沟壑纵横、黄土冲沟发育，地形相对高差 150 200m。洛河在库坝区呈“ S”型弯曲，河谷为不对程的“ U”型谷，库区右陡左缓，下游左陡右缓。河谷阶地不甚发育。可见的阶地为基座阶地。河谷宽100 150m，平水期水深 0.5 3.5m。两岸基岩大部裸露，河床偶见少量覆盖层。 3.2.2 地层岩性 本区出露地层主要由古生界三迭系上统石千峰组（ P2Sq）第三、四岩段陆相碎屑岩和第四系松 散堆积层组成。 石千峰组第三岩段（ P2Sq3），为土红色或砖红色厚 巨厚层状长石Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aahF - Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToP oints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hF - 石英细砂岩，间夹薄层青灰色页岩。该地层中夹透镜状土红色、青灰色砾岩为其特点。 石千峰第四四岩段（ P2Sq4），为土红色或紫红色泥岩夹 2 3层薄层泥质粉砂岩。泥岩中富含灰绿色泥质条带和园形绿斑为其特征。 第四系地层有： 中更新统（ Q2），由黄土状亚粘土夹古土壤组成。有的地段层中夹僵结石及蜗牛。分布于河谷两岸高阶地和黄土台塬中。 上更新统（ Q3），由冲积黄土、亚砂土夹卵砾石组成。分布于二级阶地及三级阶地。 全新统（ Q4）、为粉质砂 土及砂砾石，见于河漫滩及河谷一级阶地。尚可见河谷斜坡上的坡积碎石土及坡脚处块碎石崩积层。 3.2