福建棉花滩水电站工程.doc

第1 章 概 述...............................................................................................................................1-1
1.1 工程概况...............................................................................................................................1-1
1.2 地形和地质...........................................................................................................................1-1
1.3 水文和气象...........................................................................................................................1-1
1.4 主要工程量...........................................................................................................................1-2
1.5 主要控制性施工进度............................................................................................................1-2
1.6 工程特点...............................................................................................................................1-3
1.7 主要施工方法........................................................................................................................1-3
1.7.1 导流...............................................................................................................................1-4
1.7.2 坝基开挖.......................................................................................................................1-4
1.7.3 大坝混凝土施工方案...................................................................................................1-4
1.7.4 模板...............................................................................................................................1-4
第2 章 施工组织机构.....................................................................................................................2-5
第3 章 施工总体布置.....................................................................................................................3-6
3.1 布置条件...............................................................................................................................3-6
3.1.1 工程区地形...................................................................................................................3-6
3.1.2 交通条件.......................................................................................................................3-6
3.1.3 建设单位提供的大坝标营地........................................................................................3-6
3.1.4 砂、石料场...................................................................................................................3-1
3.1.5 环境保护要求...............................................................................................................3-1
3.1.6 供电条件.......................................................................................................................3-2
3.1.7 施工通讯.......................................................................................................................3-2
3.1.8 建设单位在桂竹桥头设有0 号柴油加油站。............................................................3-2
3.2 布置特点...............................................................................................................................3-2
3.3 风、水、电及通讯系统布置................................................................................................3-2
3.3.1 供风...............................................................................................................................3-2
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3.3.2 供水...............................................................................................................................3-3
3.3.3 施工用电.......................................................................................................................3-7
3.3.4 施工通讯.......................................................................................................................3-8
3.4 场内施工道路布置................................................................................................................3-8
3.4.1 营地施工道路...............................................................................................................3-8
3.4.2 大坝基坑内的施工道路...............................................................................................3-8
3.4.3 其他交通道路.............................................................................................................3-10
3.5 营地规划.............................................................................................................................3-10
3.5.1 1 号营地布置...............................................................................................................3-10
3.6 砂石开采、加工系统及混凝土拌合系统..........................................................................3-12
3.6.1 背头坑采石场.............................................................................................................3-12
3.6.2 青溪天然砂料场..........................................................................................................3-12
3.6.3 砂石加工及混凝土拌合系统......................................................................................3-12
3.7 碴场规划.............................................................................................................................3-12
3.8 其他辅助设施......................................................................................................................3-13
3.8.1 背头坑采石场辅助设施.............................................................................................3-13
3.8.2 青溪砂料场辅助设施.................................................................................................3-13
3.8.3 火工品库.....................................................................................................................3-13
3.8.4 供油.............................................................................................................................3-13
3.8.5 现场指挥中心.............................................................................................................3-13
3.8.6 现场停车场及其他.....................................................................................................3-14
第4 章 砂石料和拌合系统的设计与施工...................................................................................4-15
4.1 砂石料系统.........................................................................................................................4-15
4.1.1 生产规模.....................................................................................................................4-15
4.1.2 生产工艺流程.............................................................................................................4-16
4.1.3 工厂的布置.................................................................................................................4-17
4.1.4 骨料的存储及运输.....................................................................................................4-18
4.1.5 砂石骨料的质量控制.................................................................................................4-19
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4.1.6 砂石料工厂的电气控制.............................................................................................4-21
4.2 混凝土拌合系统..................................................................................................................4-22
4.2.1 拌合系统生产强度计算.............................................................................................4-22
4.2.2 混凝土拌合系统的布置.............................................................................................4-22
4.2.3 水泥和粉煤灰的贮运.................................................................................................4-23
4.2.4 砂石骨料的贮运.........................................................................................................4-23
4.2.5 混凝土的运输.............................................................................................................4-23
第5 章 施工总进度.......................................................................................................................5-25
5.1 编制依据和原则..................................................................................................................5-25
5.1.1 编制依据.....................................................................................................................5-25
5.1.2 编制原则.....................................................................................................................5-25
5.2 施工控制性进度..................................................................................................................5-26
5.3 施工程序及工期..................................................................................................................5-28
5.3.1 临建工程.....................................................................................................................5-28
5.3.2 导流工程.....................................................................................................................5-29
5.3.3 主体工程施工.............................................................................................................5-29
5.4 施工关键线路......................................................................................................................5-31
第6 章 施工测量、水文和安全监测...........................................................................................6-33
6.1 施工控制测量和放样..........................................................................................................6-33
6.1.1 测量资料复测.............................................................................................................6-33
6.1.2 施工测量.....................................................................................................................6-33
6.2 水文预报方法......................................................................................................................6-35
6.3 安全监测.............................................................................................................................6-35
6.3.1 原型观测项目.............................................................................................................6-35
6.3.2 外部观测部分.............................................................................................................6-36
6.3.3 内部观测部分.............................................................................................................6-36
6.3.4 施工观测及记录.........................................................................................................6-37
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第7 章 施工导流...........................................................................................................................7-38
7.1 水文、气象、地质条件......................................................................................................7-38
7.2 施工导流标准......................................................................................................................7-39
7.2.1 围堰级别.....................................................................................................................7-39
7.2.2 围堰设计标准.............................................................................................................7-40
7.2.3 导流方式.....................................................................................................................7-40
7.3 围堰设计.............................................................................................................................7-40
7.3.1 围堰结构型式的选择.................................................................................................7-40
7.3.2 围堰设计.....................................................................................................................7-40
7.4 围堰施工.............................................................................................................................7-43
7.4.1 围堰施工布置.............................................................................................................7-43
7.4.2 截流施工.....................................................................................................................7-44
7.4.3 围堰闭气.....................................................................................................................7-44
7.4.4 基坑排水.....................................................................................................................7-45
7.5 上、下游混凝土围堰施工..................................................................................................7-45
7.5.1 土石方开挖.................................................................................................................7-46
7.5.2 常态混凝土浇筑.........................................................................................................7-46
7.5.3 碾压混凝土施工与试验研究......................................................................................7-46
7.6 导流洞堵头施工..................................................................................................................7-47
7.7 围堰施工进度安排..............................................................................................................7-48
7.8 施工期的安全渡汛及下闸蓄水..........................................................................................7-49
7.8.1 安全渡汛.....................................................................................................................7-49
7.8.2 导流洞闸门沉放.........................................................................................................7-49
第8 章 大坝基础开挖...................................................................................................................8-50
8.1 概述....................................................................................................................................8-50
8.2 施工布置.............................................................................................................................8-50
8.2.1 施工道路布置.............................................................................................................8-50
8.2.2 风、水系统布置.........................................................................................................8-50
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8.2.3 生产辅助设施布置.....................................................................................................8-50
8.3 开挖程序及工艺流程..........................................................................................................8-51
8.3.1 施工程序.....................................................................................................................8-51
8.3.2 开挖方法和参数选择.................................................................................................8-52
8.3.3 覆盖层土方开挖.........................................................................................................8-52
8.3.4 预裂爆破.....................................................................................................................8-52
8.3.5 石方开挖.....................................................................................................................8-53
8.4 施工进度.............................................................................................................................8-54
8.5 施工设备.............................................................................................................................8-55
8.5.1 主要施工设备.............................................................................................................8-55
8.5.2 劳动力组合.................................................................................................................8-56
8.6 火工品材料计划..................................................................................................................8-56
第9 章 钻孔灌浆工程...................................................................................................................9-57
9.1 概况....................................................................................................................................9-57
9.2 施工布置和施工方法及技术要求......................................................................................9-57
9.2.1 固结灌浆.....................................................................................................................9-58
9.2.2 帷幕灌浆.....................................................................................................................9-59
9.2.3 回填灌浆.....................................................................................................................9-61
9.2.4 接触灌浆.....................................................................................................................9-61
9.2.5 排水孔施工.................................................................................................................9-61
第10 章 大坝主体工程混凝土施工...........................................................................................10-63
10.1 概述................................................................................................................................10-63
10.2 混凝土施工程序及施工进度..........................................................................................10-63
10.3 大坝混凝土施工方案......................................................................................................10-64
10.4 碾压混凝土施工..............................................................................................................10-65
10.4.1 碾压混凝土工程量.................................................................................................10-65
10.4.2 碾压混凝土施工分仓.............................................................................................10-65
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10.4.3 碾压混凝土施工进度安排......................................................................................10-65
10.4.4 碾压混凝土施工工艺.............................................................................................10-66
10.4.5 大坝碾压混凝土施工设备配备..............................................................................10-72
10.5 常态混凝土施工..............................................................................................................10-73
10.5.1 工程量.....................................................................................................................10-73
10.5.2 混凝土施工布置.....................................................................................................10-73
10.5.3 施工程序及进度安排.............................................................................................10-74
10.5.4 常态混凝土施工方法及工艺要求..........................................................................10-74
10.6 模板................................................................................................................................10-79
10.6.1 直立面模板.............................................................................................................10-79
10.6.2 挡水坝段下游面模板.............................................................................................10-79
10.6.3 溢流面RCC 施工模板............................................................................................10-79
10.6.4 溢流面常态混凝土施工立模..................................................................................10-79
10.7 闸墩预应力锚索及预制件施工......................................................................................10-79
10.7.1 概 述.....................................................................................................................10-79
10.7.2 制作场地.................................................................................................................10-80
10.7.3 闸墩预应力锚索施工方法......................................................................................10-80
10.7.4 预应力门机梁施工.................................................................................................10-85
10.7.5 坝顶公路启闭机梁施工..........................................................................................10-86
10.7.6 施工进度计划.........................................................................................................10-89
10.7.7 主要施工机械设备及人员配备..............................................................................10-89
10.8 建筑工程.........................................................................................................................10-91
10.8.1 工程内容.................................................................................................................10-91
10.8.2 烧结普通砖墙及隔墙的砌筑..................................................................................10-91
10.8.3 屋面.........................................................................................................................10-91
10.8.4 木工及细作.............................................................................................................10-92
10.8.5 钢门钢窗.................................................................................................................10-92
10.8.6 铝合金门窗.............................................................................................................10-92
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10.8.7 填缝.........................................................................................................................10-92
10.8.8 装饰金属件及特殊小五金......................................................................................10-92
10.8.9 玻璃.........................................................................................................................10-93
10.8.10 一般抹灰作业.......................................................................................................10-93
10.8.11 装饰抹灰作业及饰面工程....................................................................................10-93
10.8.12 油漆作业...............................................................................................................10-94
第11 章 金结、电气、水机附属设备及钢板衬砌安装...........................................................11-95
11.1 概况.................................................................................................................................11-95
11.2 金属结构安装..................................................................................................................11-95
11.2.1 安装工作范围..........................................................................................................11-95
11.2.2 安装前的准备工作..................................................................................................11-96
11.2.3 埋设件的安装..........................................................................................................11-97
11.2.4 吊装方案..................................................................................................................11-99
11.2.5 弧形闸门安装..........................................................................................................11-99
11.2.6 平面闸门安装........................................................................................................11-102
11.2.7 启闭设备安装........................................................................................................11-103
11.3 坝区电气埋设及设备安装............................................................................................11-106
11.3.1 电气埋设................................................................................................................11-106
11.3.2 接地系统埋设........................................................................................................11-106
11.3.3 电气设备安装........................................................................................................11-107
11.3.4 交接验收................................................................................................................11-110
11.4 水机附属设备安装........................................................................................................11-110
11.4.1 工程概况................................................................................................................11-110
11.4.2 预埋件.................................................................................................................... 11-111
11.4.3 设备安装................................................................................................................ 11-111
11.5 钢板衬砌........................................................................................................................ 11-111
11.5.1 工程概况................................................................................................................ 11-111
11.5.2 材料.......................................................................................................................11-112
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11.5.3 钢板衬砌制造........................................................................................................11-112
11.5.4 钢板衬砌安装........................................................................................................11-114
11.5.5 防腐.......................................................................................................................11-115
第12 章 质量、安全及施工进度保证措施.............................................................................12-117
12.1 工程质量总目标............................................................................................................12-117
12.2 工程质量保证措施........................................................................................................12-117
12.2.1 建立健全质量保证体系........................................................................................12-117
12.2.2 编制好施工方法和施工措施................................................................................12-117
12.2.3 严格进行施工全过程质量控制............................................................................12-118
12.2.4 实行质量责任奖惩制度........................................................................................12-118
12.3 安全工作保证措施........................................................................................................12-118
12.4 施工进度保证措施........................................................................................................12-119
12.4.1 抓好初期进场、开工的准备工作........................................................................12-119
12.4.2 抓紧保证前期临建工程施工进度........................................................................12-119
12.4.3 抓好现场的管理工作...........................................................................................12-119
12.4.4 加大设备管理力度，提高设备“三率”............................................................12-120
12.4.5 做好技术革新、技术改造、方案优化工作........................................................12-120
12.4.6 抓好后勤服务，形成支援系统。........................................................................12-120
12.4.7 加强职工思想教育，建立激励机制。.........................................................12-121
第13 章 施工机械配备.............................................................................................................13-122
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