福建棉花滩水电站工程

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发布时间：2021-11-03

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.......................................................................................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
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
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
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
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 .................................................................................