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                    XXXXX 一期工程御道站降水专项施工方案
目  录
编制依据..................................................................................................................................1
1 执行的规范、规程、标准...........................................................................................1
2 参考利用资料...............................................................................................................1
工程概况..................................................................................................................................2
1 周边环境及地下管线...................................................................................................2
2 开挖工况及围护结构...................................................................................................3
3 抛石分布情况...............................................................................................................3
4 水文地质条件...............................................................................................................3
4.1 地表水................................................................................................................3
4.2 地下水................................................................................................................4
5 施工重难点分析...........................................................................................................7
6 降水井工作量...............................................................................................................7
降水方案设计..........................................................................................................................8
1 承压水位降深要求.......................................................................................................8
2 疏干井布置...................................................................................................................9
3 降水效果预测.............................................................................................................10
3.1 水文地质概念模型..........................................................................................10
3.2 地下水流数学模型..........................................................................................11
3.3 模型参数..........................................................................................................11
3.4 模拟结果..........................................................................................................12
4 坑外备用井布置.........................................................................................................13
5 降水井结构.................................................................................................................13
6 降水试验.....................................................................................................................14
6.1 试验目的..........................................................................................................14
6.2 试验过程安排..................................................................................................15
6.3 试验成果..........................................................................................................16
施工工艺技术........................................................................................................................17

                    XXXXX 一期工程御道站降水专项施工方案
1 成井施工工艺.............................................................................................................17
1.1 技术参数..........................................................................................................17
1.2 工艺流程..........................................................................................................18
1.3 前期准备工作..................................................................................................18
1.4 施工方法..........................................................................................................18
1.5 抛石处理措施..................................................................................................19
2 降水运行要求及保障措施.........................................................................................19
2.1 运行管理要求..................................................................................................19
2.2 备用井及备用物资设置..................................................................................19
2.3 用电保障措施..................................................................................................20
2.4 排水设施..........................................................................................................20
3 降水井保护要求及措施.............................................................................................20
4 施工监测.....................................................................................................................21
4.1 运行过程中的巡视管理..................................................................................21
4.2 地下水位观测频率..........................................................................................21
4.3 监测资料整理..................................................................................................22
5 封井方案.....................................................................................................................22
5.1 坑内降水井......................................................................................................22
5.2 坑外降水井......................................................................................................24
施工计划................................................................................................................................25
1 施工进度计划.............................................................................................................25
1.1 工期安排..........................................................................................................25
1.2 工期保证措施..................................................................................................25
2 材料与设备计划.........................................................................................................26
施工安全质量保证措施........................................................................................................27
1 质量保证措施.............................................................................................................27
1.1 质量保证体系..................................................................................................27
1.2 施工管理模式..................................................................................................27
1.3 总分包质量管理体系......................................................................................27

                    XXXXX 一期工程御道站降水专项施工方案
1.4 质量职责..........................................................................................................28
1.5 质量验收标准和施工质量要求......................................................................30
1.6 质量保证措施..................................................................................................30
2 安全组织保障措施.....................................................................................................33
2.1 安全组织机构..................................................................................................33
2.2 安全保证体系..................................................................................................33
2.3 安全生产责任制..............................................................................................34
3 现场安全管理措施.....................................................................................................37
4 成井安全施工措施.....................................................................................................39
5 用电、防火安全措施.................................................................................................39
5.1 用电安全措施..................................................................................................39
5.2 防火安全措施..................................................................................................40
6 文明施工措施.............................................................................................................40
7 特殊时期施工措施.....................................................................................................40
7.1 雨季施工措施..................................................................................................40
7.2 夏季施工措施..................................................................................................41
7.3 冬季施工措施..................................................................................................41
施工管理及作业人员配备和分工........................................................................................42
1 施工管理人员.............................................................................................................42
2 特种作业人员及其他作业人员.................................................................................43
验收要求................................................................................................................................45
1 验收标准.....................................................................................................................45
2 验收程序.....................................................................................................................45
3 验收内容.....................................................................................................................45
4 验收人员.....................................................................................................................45
应急处置措施........................................................................................................................46
1 用电应急预案.............................................................................................................46
1.1 双电源保证......................................................................................................46
1.2 电源切换流程..................................................................................................46