地铁施工降水井施工方案.pdf

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1、成都地铁2号线二期工程(西延伸线)土建1标降水井施工方案中铁二局股份有限公司成都地铁2号线二期工程(西延伸线)土建1标项目经理部二〇一〇年八月二十六日目录第一章工程概况.........................................................01.1概述................................................................01.2工程地质和水文地质.................................................0

2、1.2.1工程地质条件....................................................01.2.2水文地质条件....................................................11.3降水目的及方法.....................................................1第二章降水方案设计....................................................32.1施工降水方案概况.........

3、..........................................32.2基坑涌水量计算.....................................................52.2.1参数选择........................................................52.2.3受降水漏斗影响高差计算..........................................52.3降水井计算..................................

4、.......................62.4观测井布置.........................................................72.5地面沉降............................................................92.6其他降排水施工措施.................................................9第三章施工方法与施工组织..........................................

5、...103.1技术要求...........................................................103.2主要施工方法......................................................103.2.1工艺流程.......................................................103.2.2施工方法.......................................................103.2.

6、3成孔过程中泥浆处理措施.........................................123.2.4常见的质量通病和防治方法.......................................133.3施工组织..........................................................153.3.1进度计划.......................................................153.3.2主要机械设备进场计划.............

7、..............................153.3.3劳动力进场计划.................................................16第四章施工保证措施...................................................174.1安全保证措施......................................................174.1.1防火安全措施.........................................

8、..........174.1.2施工用电安全措施...............................................174.1.3施工机