富阳污水四期工程设备供货安装及调试明开槽施工方案编制人：批准人：北京久安建设投资集团有限公司年月日目录一、编制依据..........................................................................................................3二、工程概况..........................................................................................................3三、工程地质与水文地质资料....................................................................................43.1地质情况..........................................................................................................43.2水位条件..........................................................................................................5四、施工部署..........................................................................................................54.1施工准备..........................................................................................................54.1.1现场调查及难点分析.............................................................................54.1.2施工前做好放线和测量工作...............................................................134.1.3工期目标...............................................................................................134.1.4质量目标...............................................................................................14五、开槽施工方案................................................................................................145.1施工准备........................................................................................................145.1.1．技术准备..........................................................................................145.1.2.材料机械准备....................................................................................145.1.3.施工环境调查....................................................................................145.1.4机械及人员准备.................................................................................155.2钢板桩支护设计............................................................................................165.3施工工艺流程................................................................................................175.3.1操做方法.............................................................................................175.3.2施工中遇到的问题及处理办法.........................................................185.4沟槽开挖........................................................................................................195.4.1工艺流程.............................................................................................195.4.2施工方法.............................................................................................195.4.3沟槽基础.............................................................................................205.4.3技术保证.............................................................................................205.5管道敷设........................................................................................................205.5.1下管.....................................................................................................205.5.2管道接口.............................................................................................215.6检查井.............................
