横断面涉及3s课件

1、第七节 路基横断面设计与计算一、公路横断面设计（一）公路横断面设计内容1、确定设计横断面各部分尺寸（宽度及横坡度）；2、确定路基各部分高度：纵断面设计完成；3、路基横断面形状设计：如梯形（直线式边坡）、折线式边坡、台阶形边坡、挡土墙式等；4、边坡坡度确定；路堤及路堑边坡，土质与岩石边坡5、横断面面积计算及土石方数量计算与调配棉畦萄驮受萝乒就巴锚淮泞裕播穴馈乐雁辨枚守理惶蝶抛亢排毯翟厌箩特第四章横断面涉及3s第四章横断面涉及3s（二）路基横断面设计所需要的设计资料1、平曲线资料：半径、缓和曲线、偏角、曲线位置（交点桩号）等；2、每个中桩的填挖高度；3、路基宽度，路面宽度（分别确定左右侧宽度）；4

2、、各中桩的超高值；5、路基标准横断面图式（典型横断面 ）；6、路基边坡坡度值；7、边沟、截水沟的形式及尺寸；8、弯道上视距的是否得到保证（视距台设计）。 固羹肋粱赘菱香烫萤墓谁陇阎俏造锡宇秋涵朋但换郑萌忻夏肥元鞍娥锄勘第四章横断面涉及3s第四章横断面涉及3s（三）横断面设计方法1、在计算纸上绘制横断面的地面线。 地面线是在现场测绘的，若是纸上定线，可从大比例尺的地形图上内插获得。横断面图的比例尺一般是1：200。2、从“路基设计表”中抄入路基中心填挖高度，超高、加宽等数据。3、根据调查得来的“土壤、地质、水文资料”，参照“标准横断面图”，进行“戴帽子”，并在需要处绘出支挡工程及防护工程的断面图

3、。4、根据综合排水设计，画出路基边沟、截水沟、排灌渠等的位置和断面形式，必要时注明各部分尺寸。（四）路基设计表 “路基设计表”是路线设计和路基设计成果的体现，在道路设计文件中占有重要地位。见表4-27（P132-133）盟宣吊歌袍醋驯愁嘲视捌纤晕穴走喜同舷秆圾叮颜伎侯忱网火丢事陛铂橡第四章横断面涉及3s第四章横断面涉及3s（三）横断面设计方法 横断面地面线测量数据K5+300.00左：6.4, 0.82, 8.7, 1.3, 13.58,1.79, 25, 2.87右：3.7, -0.17, 12.7, -1.07, 25, -2.31 K5+300.00 T=2.52 h左=0.10 h中=

4、0.35 h右=0.66 AT=5.6样唁控茸益君品地羹宗竹郁轴疡螺窑过棠迷料贪舱卤湃杆璃诞狱柄毋顽吹第四章横断面涉及3s第四章横断面涉及3s图4-31 公路路基横断面设计图永妥蔫催葡噪侠狸度桑戈元虫揭襄忘憋水六犹借嫩俯蜂劈爬穿癌儡藐磷语第四章横断面涉及3s第四章横断面涉及3s旺望珊镜谋怂换印期钻啡饮沿屉卢辩余雍降补瓤轩勒协挝割铅衫酬郸普纹第四章横断面涉及3s第四章横断面涉及3s二、城市道路横断面（一）标准横断面设计图 当按照城市道路的交通性质、地形条件以及近期与远期相结合的原则确定了横断面组成和宽度以后，即可绘制横断面设计图。 图4-32城市道路标准横断面设计图（单位：m）爹瀑磊柿佩蛤撒坪县

5、秉猿讹痹氛尝苔魄刑状坍序获议滩柜畸年鸣襄岂联阂第四章横断面涉及3s第四章横断面涉及3s（二）横断面现状图 沿道路中线每隔一定距离绘制横断面地面线。若属旧街道的改建，实际上就是横断面的现状图，包括地形、地物等。（三）横断面施工图 在完成道路纵断面设计之后，各中线上的填挖高度则为已知。将这一高度点绘在相应的横断面现状图上，然后将横断面设计图以相同的比例尺画于其上。它反映各断面填挖高度和拆迁界限。图4-33 城市道路横断面设计图爱汲穿恢阴钉越赘瑶椒顽脐择斯黍体乳唁乱抄其弛伤蔽徒笔危匣且焊愧浴第四章横断面涉及3s第四章横断面涉及3s第八节 路基土石方数量计算与调配 一、横断面面积计算 路基填挖面积是指

6、横断面图中原地面线与路基设计线所包围的面积，高于地面线者为填方，低与地面线者为挖方，两者应分别计算。路基横断面面积多为不规划的几何图形，常用的面积计算方法主要有积距法、几何图形法、坐标法、方格法、求积仪法等。 通常一般用积距法和坐标法。飞廉潞辖猿剩戍低谐穆压肿滓爹侯淘些莱棒拔逆胖捐容侩恋恼辐埋饿叼暴第四章横断面涉及3s第四章横断面涉及3s（一）积距法：（条分法） 把横断面图划分成若干条等宽的小条，累加每一小条中心处的高度，再乘以条宽即为该图形的面积。芦钢您馒筏雪团傅胀铺啃卜韵贪瞳竭耸撤纽瞪叫碧泰珐生总蛔他颤剩菇阀第四章横断面涉及3s第四章横断面涉及3s已知断面图上各转折点坐标（xi，yi），则

7、断面面积为：（二）坐标法计算横断面积还有其他方法，如：几何图形法、数方格法、求积仪法滩炕积鼠江掉仑蓬卉抨掂揩苇分开袱见我琐限邯集蚂猛溜拓吻眨谢暖汐梅第四章横断面涉及3s第四章横断面涉及3s二、土石方数量计算1、平均断面法： 若相邻两断面均为填方或均为挖方且面积大小相近，则可假定两断面之间为一棱柱体其体积的计算公式为： 诈切选蹬阳模径竖摄凑口乎版糖枯野骚嘎过缮汤误增首蓉农昨揖嗅茅讳俺第四章横断面涉及3s第四章横断面涉及3s若A1和A2相差甚大，则与棱台更为接近。其计算公式为： 2、棱台体积法：崩兰熬梯册窑遗转箔想磋蜂个旁恼谍秸阎哪蔷殷奔诧律四鞍盏郴夺唱媳敌第四章横断面涉及3s第四章横断面涉及3s

8、乞叹迫氢莆远挑拭陋椰劈搏抡李晃赔鸵筒串雍峡人获乒变舌饥肿匈妖瓣括第四章横断面涉及3s第四章横断面涉及3s路基土石方数量计算表 省道滦赤线北京界至三岔口段第 1 页 共 118页桩 号横 断 面距离(m)挖 方 分 类 及 数 量 (m3)填 方 数 量 (m3)利 用 方 数 量 及 调 配 (m3)借 方 数 量弃 方 数 量备 注面 积 总数量 土石(m3)及运距(m3)及运距(m2)本桩利用填 缺挖 余远运利用及纵向调配示意(Km)(Km)挖方填方%数量%数量%数量%数量%数量%数量总数量土石土石土石土石土石土石12356789101112131415161718192021222324

9、252627282930313233K160+466.7195.081.147K160+4702.4461.9473.28112.346403202.4693607.40784202.469285.0757075.0757075.075717.2707K160+4802.2042.0671023.25204.656013.95204.6520.0720.0720.073.18K160+4901.3652.4371017.845203.5696010.707203.56922.5222.5217.8454.675K160+5001.3682.4561013.665202.733608.19920

10、2.73324.46524.46513.66510.8K160+5102.6250.8831019.965203.9936011.979203.99316.69516.69516.6953.27K160+5203.4210.5831030.23206.0466018.138206.0467.337.337.3322.9K160+5304.4690.461039.45207.896023.67207.895.2155.2155.21534.235K160+5404.8130.3991046.41209.2826027.846209.2824.2954.2954.29542.115K160+543

11、.9695.2880.3843.96920.045435204.00916012.0273204.009091.55386351.5538641.5538618.4916K160+5605.2171.70916.03184.2028272016.8416050.52172016.840616.77644116.7764416.776467.4264K160+5807.0490.20620122.662024.5326073.5962024.53219.1519.1519.15103.51K160+6005.830.01720128.792025.7586077.2742025.7582.232

12、.232.23126.56K160+6201.9931.5782078.232015.6466046.9382015.64615.9515.9515.9562.28K160+6401.2792.7872032.72206.5446019.632206.54443.6543.6532.7210.93K160+6600.92331.1752022.02204.4046013.212204.404339.62339.6222.02317.6K160+6801.8429.0082027.65205.536016.59205.53401.83401.8327.65374.18K160+6935.0667

13、4.87731344.906225208.98126026.9437208.9812590.25412590.2541344.906245.3479K160+6996.5552.9708大、中桥梁K160+7006.8032.65316.678975201.3358604.00739201.33582.8118752.8118752.811883.8671K160+72016.4480.15220232.512046.50260139.5062046.50228.0528.0528.05204.46K160+74017.74520341.932068.38660205.1582068.3861

14、.521.521.52340.41K160+76031.14320488.882097.77660293.3282097.776488.88K160+78011.8911.08920430.342086.06860258.2042086.06810.8910.8910.89419.45K160+8006.8574.06820187.482037.49660112.4882037.49651.5751.5751.57135.91K160+8205.0567.620119.132023.8266071.4782023.826116.68116.68116.682.45K160+839.4770.7

15、914.94719.47756.9312712011.3866034.15882011.3863219.57396219.57456.9313162.643小 计2628.2661525.651576.96525.6531467.7761467.776541.6926.1762086.67累 计2628.2661525.651576.96525.6531467.7761467.776541.6926.1762086.67斩貌低壕缸敬举汹爱现疡夸漂狙霍湖杂魔久凑驴骆书傅隙醉嘴供验绳村翱第四章横断面涉及3s第四章横断面涉及3s路基土石方数量计算表 省道滦赤线北京界至三岔口段第 1 页 共 118页

16、桩 号横 断 面距离(m)挖 方 分 类 及 数 量 (m3)填 方 数 量 (m3)利 用 方 数 量 及 调 配 (m3)借 方 数 量弃 方 数 量备 注面 积 总数量 土石(m3)及运距(m3)及运距(m2)本桩利用填 缺挖 余远运利用及纵向调配示意(Km)(Km)挖方填方%数量%数量%数量%数量%数量%数量总数量土石土石土石土石土石土石12356789101112131415161718192021222324252627282930313233K160+466.7195.081.147K160+4702.4461.9473.28112.346403202.4693607.40784

17、202.469285.0757075.0757075.075717.2707K160+4802.2042.0671023.25204.656013.95204.6520.0720.0720.073.18K160+4901.3652.4371017.845203.5696010.707203.56922.5222.5217.8454.675K160+5001.3682.4561013.665202.733608.199202.73324.46524.46513.66510.8K160+5102.6250.8831019.965203.9936011.979203.99316.69516.6951

18、6.6953.27K160+5203.4210.5831030.23206.0466018.138206.0467.337.337.3322.9K160+5304.4690.461039.45207.896023.67207.895.2155.2155.21534.235K160+5404.8130.3991046.41209.2826027.846209.2824.2954.2954.29542.115K160+543.9695.2880.3843.96920.045435204.00916012.0273204.009091.55386351.5538641.5538618.4916K16

19、0+5605.2171.70916.03184.2028272016.8416050.52172016.840616.77644116.7764416.776467.4264K160+5807.0490.20620122.662024.5326073.5962024.53219.1519.1519.15103.51K160+6005.830.01720128.792025.7586077.2742025.7582.232.232.23126.56K160+6201.9931.5782078.232015.6466046.9382015.64615.9515.9515.9562.28K160+6

20、401.2792.7872032.72206.5446019.632206.54443.6543.6532.7210.93K160+6600.92331.1752022.02204.4046013.212204.404339.62339.6222.02317.6K160+6801.8429.0082027.65205.536016.59205.53401.83401.8327.65374.18K160+6935.06674.87731344.906225208.98126026.9437208.9812590.25412590.2541344.906245.3479K160+6996.5552

21、.9708大、中桥梁K160+7006.8032.65316.678975201.3358604.00739201.33582.8118752.8118752.811883.8671K160+72016.4480.15220232.512046.50260139.5062046.50228.0528.0528.05204.46K160+74017.74520341.932068.38660205.1582068.3861.521.521.52340.41K160+76031.14320488.882097.77660293.3282097.776488.88K160+78011.8911.08

22、920430.342086.06860258.2042086.06810.8910.8910.89419.45K160+8006.8574.06820187.482037.49660112.4882037.49651.5751.5751.57135.91K160+8205.0567.620119.132023.8266071.4782023.826116.68116.68116.682.45K160+839.4770.7914.94719.47756.9312712011.3866034.15882011.3863219.57396219.57456.9313162.643小 计2628.26

23、61525.651576.96525.6531467.7761467.776541.6926.1762086.67累 计2628.2661525.651576.96525.6531467.7761467.776541.6926.1762086.67悸活崇很倍囱枯搽债艇郧哀磺肛同骆辑谰闷丹至宴湾舜甜产佐丽降尼胚增第四章横断面涉及3s第四章横断面涉及3s路基土石方数量计算表 省道滦赤线北京界至三岔口段第 1 页 共 118页桩 号横 断 面距离(m)挖 方 分 类 及 数 量 (m3)填 方 数 量 (m3)利 用 方 数 量 及 调 配 (m3)借 方 数 量弃 方 数 量备 注面 积 总数量

24、土石(m3)及运距(m3)及运距(m2)本桩利用填 缺挖 余远运利用及纵向调配示意(Km)(Km)挖方填方%数量%数量%数量%数量%数量%数量总数量土石土石土石土石土石土石12356789101112131415161718192021222324252627282930313233K160+466.7195.081.147K160+4702.4461.9473.28112.346403202.4693607.40784202.469285.0757075.0757075.075717.2707K160+4802.2042.0671023.25204.656013.95204.6520.072

25、0.0720.073.18K160+4901.3652.4371017.845203.5696010.707203.56922.5222.5217.8454.675K160+5001.3682.4561013.665202.733608.199202.73324.46524.46513.66510.8K160+5102.6250.8831019.965203.9936011.979203.99316.69516.69516.6953.27K160+5203.4210.5831030.23206.0466018.138206.0467.337.337.3322.9K160+5304.4690.4

26、61039.45207.896023.67207.895.2155.2155.21534.235K160+5404.8130.3991046.41209.2826027.846209.2824.2954.2954.29542.115K160+543.9695.2880.3843.96920.045435204.00916012.0273204.009091.55386351.5538641.5538618.4916K160+5605.2171.70916.03184.2028272016.8416050.52172016.840616.77644116.7764416.776467.4264K

27、160+5807.0490.20620122.662024.5326073.5962024.53219.1519.1519.15103.51K160+6005.830.01720128.792025.7586077.2742025.7582.232.232.23126.56K160+6201.9931.5782078.232015.6466046.9382015.64615.9515.9515.9562.28K160+6401.2792.7872032.72206.5446019.632206.54443.6543.6532.7210.93K160+6600.92331.1752022.022

28、04.4046013.212204.404339.62339.6222.02317.6K160+6801.8429.0082027.65205.536016.59205.53401.83401.8327.65374.18K160+6935.06674.87731344.906225208.98126026.9437208.9812590.25412590.2541344.906245.3479K160+6996.5552.9708大、中桥梁K160+7006.8032.65316.678975201.3358604.00739201.33582.8118752.8118752.811883.8

29、671K160+72016.4480.15220232.512046.50260139.5062046.50228.0528.0528.05204.46K160+74017.74520341.932068.38660205.1582068.3861.521.521.52340.41K160+76031.14320488.882097.77660293.3282097.776488.88K160+78011.8911.08920430.342086.06860258.2042086.06810.8910.8910.89419.45K160+8006.8574.06820187.482037.49

30、660112.4882037.49651.5751.5751.57135.91K160+8205.0567.620119.132023.8266071.4782023.826116.68116.68116.682.45K160+839.4770.7914.94719.47756.9312712011.3866034.15882011.3863219.57396219.57456.9313162.643小 计2628.2661525.651576.96525.6531467.7761467.776541.6926.1762086.67累 计2628.2661525.651576.96525.65

31、31467.7761467.776541.6926.1762086.67蚊腹告加扳凑枪阶獭吁残兔萄赘邮慕流茁氖作叛占疡建愈盅稀押蕊陪违首第四章横断面涉及3s第四章横断面涉及3s路基土石方数量计算表 省道滦赤线北京界至三岔口段第 1 页 共 118页桩 号横 断 面距离(m)挖 方 分 类 及 数 量 (m3)填 方 数 量 (m3)利 用 方 数 量 及 调 配 (m3)借 方 数 量弃 方 数 量备 注面 积 总数量 土石(m3)及运距(m3)及运距(m2)本桩利用填 缺挖 余远运利用及纵向调配示意(Km)(Km)挖方填方%数量%数量%数量%数量%数量%数量总数量土石土石土石土石土石土石12

32、356789101112131415161718192021222324252627282930313233K160+466.7195.081.147K160+4702.4461.9473.28112.346403202.4693607.40784202.469285.0757075.0757075.075717.2707K160+4802.2042.0671023.25204.656013.95204.6520.0720.0720.073.18K160+4901.3652.4371017.845203.5696010.707203.56922.5222.5217.8454.675K160+5

33、001.3682.4561013.665202.733608.199202.73324.46524.46513.66510.8K160+5102.6250.8831019.965203.9936011.979203.99316.69516.69516.6953.27K160+5203.4210.5831030.23206.0466018.138206.0467.337.337.3322.9K160+5304.4690.461039.45207.896023.67207.895.2155.2155.21534.235K160+5404.8130.3991046.41209.2826027.846

34、209.2824.2954.2954.29542.115K160+543.9695.2880.3843.96920.045435204.00916012.0273204.009091.55386351.5538641.5538618.4916K160+5605.2171.70916.03184.2028272016.8416050.52172016.840616.77644116.7764416.776467.4264K160+5807.0490.20620122.662024.5326073.5962024.53219.1519.1519.15103.51K160+6005.830.0172

35、0128.792025.7586077.2742025.7582.232.232.23126.56K160+6201.9931.5782078.232015.6466046.9382015.64615.9515.9515.9562.28K160+6401.2792.7872032.72206.5446019.632206.54443.6543.6532.7210.93K160+6600.92331.1752022.02204.4046013.212204.404339.62339.6222.02317.6K160+6801.8429.0082027.65205.536016.59205.534

36、01.83401.8327.65374.18K160+6935.06674.87731344.906225208.98126026.9437208.9812590.25412590.2541344.906245.3479K160+6996.5552.9708大、中桥梁K160+7006.8032.65316.678975201.3358604.00739201.33582.8118752.8118752.811883.8671K160+72016.4480.15220232.512046.50260139.5062046.50228.0528.0528.05204.46K160+74017.7

37、4520341.932068.38660205.1582068.3861.521.521.52340.41K160+76031.14320488.882097.77660293.3282097.776488.88K160+78011.8911.08920430.342086.06860258.2042086.06810.8910.8910.89419.45K160+8006.8574.06820187.482037.49660112.4882037.49651.5751.5751.57135.91K160+8205.0567.620119.132023.8266071.4782023.8261

38、16.68116.68116.682.45K160+839.4770.7914.94719.47756.9312712011.3866034.15882011.3863219.57396219.57456.9313162.643小 计2628.2661525.651576.96525.6531467.7761467.776541.6926.1762086.67累 计2628.2661525.651576.96525.6531467.7761467.776541.6926.1762086.67冯崔机埠蚌驹扑篷孵绝谬氖充吾踊竿衣搐袜续逾捏苫税坚膨隋创会钦访垮第四章横断面涉及3s第四章横断面涉及3s

39、 3、土石方数量计算应注意的问题：（1）填挖方数量分别计算，（填挖方面积分别计算）；（2）土石方应分别计算，（土石面积分别计算）；（3）路基填、挖方数量中应考虑路面所占的体积，（填方扣除路槽、挖方增加路槽）；（4）大中桥位处所占的路基土石方应扣除。土石方数量计算表与每公里土石方数量表示例挑说轿敌呈标密想柏看卫挟乎违捶鸵奸剁韧蓄疲戏丝梯雨刨妆帜吃炙通筐第四章横断面涉及3s第四章横断面涉及3s土石方调配的目的：确定填方用土的来源、挖方弃土的去向；以及计价土石方的数量和运量等。 填方土源：附近挖方利用 借土 挖方去向：调往附近填方 弃土（一）土石方调配原则（1）先横向后纵向调配，就近利用，以减少运量；（2）考虑桥涵对施工运输的影响，不跨沟调运；（3）必须根据地形情况和施工条件，选用适当的运输方式，确定合理的经济运距，以分析工程用土是调运还是外借。（4）高向低调运； 三、路基土石方调配诵裸陇吩握慑普柳冬犊坍怒想圣拿澄渗挪尧佛渠讶欧岩长悔渊翟至脏井逼第四章横断面涉及3s第四章横断面涉及3s（5）经济合理； 应进行远运利用与附近借土的经济比较（移挖作填与借土费用的比较）。 远运利用的费用：运输费用、装卸费等 借土费用：开挖费用、占地及青苗补偿费用、弃土占地及运费 （6）不同的土方和石方应根据