洪家渡大坝水电站投标文件

目录

第一章工程总概述...................................................................1

1.1工程概况.......................................................................1

1.2地形地质条件概述..............................................................1

1.2.1地形地貌.......................................................................1

1.2.2地层岩性.......................................................................1

1.2.3地质构造......................................................................2

124岩溶水文地质..................................................................2

1.2.5物理地质现象..................................................................3

1.3工程目前现状..................................................................3

1.3.1可供本标使用的场内主要交通干线...............................................3

1.3.2可供本标使用的电力线路........................................................4

1.3.3可供本标使用的供水设施........................................................4

1.3.4其它设施......................................................................4

1.4本标的工作内容................................................................5

1.4.1围堰工程......................................................................5

1.4.2大坝基础开挖..................................................................5

1.4.3人坝趾板及基础处理............................................................5

144帷幕灌浆5

1.4.5坝体填筑及面板、防浪墙、挡墙碎浇筑..................1.................6

1.4.6料场、磴场的开采使用和维护...................................................6

1.4.7导流洞及施工支洞封堵..........................................................6

1.4.8场内公路交通的维护及上坝填筑专用道路的修建..................................6

149其它临建工程..................................................................6

1.5HJD/C’i标的主要工程量.........................................................6

1.5.1总价工程......................................................................6

1.5.2大坝基础开挖及处理............................................................7

1.5.3大坝趾板及面板工程............................................................7

1.5.4坝体填筑.......................................................................7

1.5.5排水沟及零星工程..............................................................7

1.5.6基础处理.......................................................................7

1.5.7帷幕灌浆.......................................................................7

1.5.8〃、2#、W、4#、5射施工支洞封堵................................................8

1.5.9/#、2#导流洞封堵..............................................................8

Lb.IO料场开采及支护...............................................................H

1.5.11大坝变形观测.................................................................8

1.6河道水流控制条件概述..........................................................8

1.7本标工程主要特点..............................................................9

1.8洪家渡HJD/C31标计划采用的新技术.............................................10

1.8.1采用爆破法直接开采过渡料及特殊碾压区料.....................................10

1.8.2孔内、孔间微差顺序爆破技术..................................................10

1.8.3保护层开挖一次爆破技术.......................................................10

1.8.4激光导向反铲削坡.............................................................10

L8.5滑模浇筑趾板碎...............................................................10

1.8.6铜片止水成型机的使用.........................................................11

1.8.7振动夯板的使用...............................................................11

1.8.8斜坡牵引机的使用.............................................................11

1.9工程总进度计划概述...........................................................11

1.10施工主要设备配置............................................................13

第二章施工总布置............................................14

2.2.1施工道路....................................................................................................14

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2.2.8钢筋、木模加工存放场......................................26

2.2.9机修厂＞设备停放场,...................................................................................26

2.2.10办公及生活设施.........................................................................................27

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2.2.15临建设施主要设备及土建工程量汇总表..........................................................33

第三章围堰和河道水流控制..........................................................35

31工程概述35

3.1.1上下游围堰施工及工程地质条件简述...............................................................35

3.1.2水文气象条件.............................................................................................35

3.1.3导流方案及导流标准....................................................................................37

3.L4号....................................................................................................阿I：程进度控制工期..37

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3.2.4上游土石围堰及下游土石围堰坡面保护............................................................39

3.2.5河道截流设计规划.......................................................................................40

3.2.6底纳河伏流出门整治及围堰岸坡防渗...............................................................40

3.3河道截流施工及围堰填筑.......................................................40

3.3.2俄城需:及合龙...........................................................................................42

3.3.3防渗墙施工及围堰闭气.................................................................................42

3.3.4._.期围堰施工.............................................................................................46

3.4基坑排水.....................................................................46

3.4.1基坑初期排水.............................................................................................46

3.5施工期上下游围堰的维护.......................................................47

3.6下游围堰拆除.................................................................47

3.7导流工程主要施工机械设备.....................................................48

3.8围堰施工主要工程量...........................................................49

第四章坝肩及基坑开挖与支护........................................................51

4.1工程概述.....................................................................51

4.1.2开挖及支护概述..........................................................................................51

4.1.4施工进度计划.............................................................................................52

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4.3.6左右坝肩EL.980m以上土石方开挖施工进度表...................................56

4.4基坑（EL.980M高程以下）开挖..................................................57

441概述57

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4.4.4基坑排水布置.................................................................58

4.4.5基坑开挖机械设备配置表.......................................................58

4.5边坡支护及基础处理...........................................................59

4.5J边坡锚喷支护................................................................59

4.5.2锚喷支护的施工方法...........................................................59

453喷碎59

4.5.4边坡支护爆破振动影响控制措施................................................60

4.5.5基础处理.....................................................................60

4.5.6支护机械设备配置表...........................................................60

4.6避免可用料和弃硝混料措施.....................................................60

4.6.1钻孔爆破控制措施.............................................................60

4.6.2装运控制措施.................................................................61

4.7可用料爆破控制措施...........................................................61

4.7.1锌i孑制...........................................................6/

4.7.2挖运控制措施.................................................................61

4.8坝基开挖及支护质量保证措施...................................................61

4.8.1开挖质量保证措施.............................................................61

4.8.2边坡支护质量保证措施.........................................................62

第五章趾板保护层开挖、基础处理、趾板内坡喷锚支护............63

5.1工程概述.....................................................................63

5.1.1工作内容.....................................................................63

5.1.2工程基本情况.................................................................63

5.1.3趾板保护层石方开挖及基础处理主要工程量汇总.................................64

5.1.4地形、地质条件概述...........................................................64

5.2施组设计原则.................................................................65

5.3趾板保护层石方开挖施工程序及施工方法..........................................65

5.3.1施工分期方案.................................................................65

5.3.2施工支线道路的布置...........................................................65

5.3.3趾板保护层开挖钻孔爆破方案..................................................66

5.4溶洞和断层处理的施工工序及方法说明...........................................68

5.4.2溶洞和断层的处理方法.........................................................68

5.5趾板内坡锚喷支护.............................................................69

5.5.1施工规划.....................................................................69

5.5.2边坡支护施工程序:..........................................................69

5.5.3边坡支护施.工方法.............................................................69

5.5.4趾板下游侧30m范围喷钢纤维碎...............................................70

5.6大坝周边排水沟施工...........................................................70

5.6.1施工规划......................................................................70

5.6.2施工方法.....................................................................70

5.7机械设备酉己置表...............................................................71

第六章坝址区探孔、探洞的处理................................72

6.1工程概况.....................................................................72

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6.1.2坝址区钻探孔、探洞的基本情况............................................................................................72

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6.2施组设计原则...........73

6.3钻探孔的处理.................................................................73

6.4探洞的处理..：.................................................................74

641施工程序....................................................................................................................................74

6.4.2吨工方法....................................................................................................................................74

第七章趾板磴浇筑..................................................................76

7.1工程概况.....................................................................76

7.2施工组织设计原则.............................................................76

7.3趾板碎配合比设计.............................................................76

73.1趾板磴品合比的设i十要求.......................................................................................................76

7.3.2趾板碎配合比初步设计.....................................................................................................77

7.4趾板碎浇筑进度计划...........................................................77

7.5趾板碎浇筑前的准备工作.......................................................78

7.5./周边缝"F”型止水铜片的制作.........................................................................................78

7.5.2水平段常规模板罩作…]........................................................................................................78

7.6趾板碎浇筑的施工道路布置.....................................................78

7.6.1河槽水平段及EL.980m以下的趾板般浇筑..........................................................................78

7.6.2左岸EL.980~1085m碎运输路线............................................................................................78

7.6.3左岸EL.1085m以上趾板硅运输路线....................................................................................78

7.6.4右岸EL980~1055m趾板碎运输路线....................................................................................79

7.6.5右岸EL.1055~1090m跑板碎运输路线..................................................................................79

7.6.6右岸EL.]0901n以上趾板硅运输路线....................................................................................79

7.7水平段趾板碎浇筑.............................................................79

7.7.1水平段模板组立........................................................................................................................79

7.7.2趾板钢筋绑扎............................................................................................................................79

7.7.3浇筑§面准号二.........................................................................................................................79

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7.7.6趾板诠的养护及拆模...............................................................................................................80

7.7.7周边缝止水铜片的保护...........................................................................................................80

7.8施工分块缝处理...............................................................81

7.9左右岸斜坡段趾板磴浇筑.......................................................81

7.9.1有轨滑模安装程序...................................................................................................................81

7.9.2有轨滑模的移位、.......................................................................................................................82

7.10趾板碎浇筑设备配置表........................................................82

7.11趾板碎质量保证措施..........................................................82

7.11.1砂原材料的质量控制..............................................................................................................82

7.11.2砂拌和生产的质量控制..........................................................................................................82

7.11.3磅运输及现场施工的质量控制.............................................................................................83

7.12趾板硅浇筑安全措施..........................................................83

第八章大坝填筑..............................................84

8.1工程概述.....................................................................84

8.2施工组织设计原则.............................................................84

8.3.大坝填筑碾压试验...........................................................86

8.3.1.碾压试验的准备工作..........................................................86

8.3.2.试验步骤.....................................................................87

83.3.斜坡的修整、碾压及保护....................................................88

8.3.4.资料整理及报批..............................................................88

8.4.大坝填筑的分期、工程量和填筑时段...........................................89

8.4.1.I期坝体填筑.................................................................89

8.4.2.II期坝体填筑.................................................................90

8.4.3HI期坝体填筑.................................................................90

8.4.4.N期坝体填筑.................................................................90

8.4.5.V期坝体填筑..................................................................91

846.VI期坝体填筑.................................................................97

8.4.7.VB期填筑--坝前粘土铺盖及保护石硝施工.....................................97

8.4.8.\册期填筑.....................................................................92

8.5大坝填筑各分期道路布置.......................................................94

8.5.1大坝第I期填筑上坝道路布置..................................................94

8.5.2第II期上坝道路布置..........................................................94

8.5.3第期上坝道路布置..........................................................94

854第IV期上坝道路布置...........................................................94

8.5.5第V期上坝道路布置..........................................................94

8.5.6第VI期上坝道路布置..........................................................95

8.5.7第VH期施工道路布置..........................................................95

8.5.8第训!期填筑道路布置..........................................................95

8.6.大坝填筑分期的料物平衡.....................................................95

8.6.1料物平衡的原则...............................................................95

8.6.2招标文件规定的由其他标段提供的上坝料.......................................96

8.6.3两个采石场及曾家寨土料场应开采的上坝料.....................................96

8.6.4料物平衡表...................................................................97

8.7大坝填筑各区料的施工方法、施工工艺及质量控制.................................99

8.7.1概述.........................................................................99

8.7.2大坝填筑施工程序（一个填筑单元）...........................................99

8.7.3大坝填筑单元的划分..........................................................100

8.7.4上坝料的洒水................................................................100

8.7.5上坝料的运输................................................................101

8.7.6上坝料卸料..................................................................102

8.7.7平料及超径石处理............................................................102

8.7.8水平碾压....................................................................103

8.7.9垫层料上游坡面的修坡.......................................................104

8.7.10斜坡碾压...................................................................105

8.7.11坝后护坡干砌石施工........................................................106

8.7.12大坝填筑的测量控制.........................................................106

8.7.13大坝填筑的质量检验.........................................................107

8.7.14大坝垫层料坡面保护.........................................................108

8.7.15防止坝体变形造成垫层料斜坡面二次补填的措施...............................109

8.7.16坝体反向水压力的处理.......................................................110

8.8大坝上游粘土铺盖及保护石喳填筑..............................................111

8.9大坝填筑施工机械设备配置.....................................................112

8.10大坝填筑施工劳动力配置................................112

8.11大坝填筑施工安全措施........................................................113

第九章石料场及土料场施工.........................................................114

9.1工程概况.....................................................................114

9.1.1料场地质概况................................................................114

9.1.2交通运输及周围的环境状况...................................................114

9.1.3工程量.......................................................................H5

9.2施工组织设计的原则..........................................................115

9.3施工方案及工期安排..........................................................116

9.3.1施工方案.....................................................................116

9.3.2工期安排.....................................................................777

9.4施工支线道路布置............................................................118

9.4.1料场附近业主提供的干线公路..................................................118

9.4.2施工支线道路布置原则........................................................118

9.4.3支线道路的布置方案及施工方法...............................................118

9.4.4支线道路工程量..............................................................779

9.4.5道路维护及安全措施..........................................................120

9.5剥离.........................................................................120

9.5.1剥离范围.....................................................................120

952表土层及杂草濯木的清除......................................................120

9.5.3表面风化层的剥离............................................................120

9.6爆破试验...................