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苏州高新区有轨电车1号线延伸线土建施工总承包二标段顶管、拖管专项施工方案宏润建设集团股份有限公司苏州高新区有轨电车1号线延伸线土建施工总承包二标段项目经理部编制人：审核人：编制日期：目录一、编制依据及原则.....................................................41.1编制依据.......................................................41.2编制原则.......................................................4二、工程概况...........................................................42.1地质情况.......................................................12.2设计概况.......................................................22.3工程概况.......................................................32.4工程工期........................................................3三、沉井施工工艺.......................................................33.1沉井施工流程....................................................33.2基坑测量放样....................................................33.3基坑开挖........................................................33.4刃脚垫层施工....................................................43.5沉井内模和钢筋绑扎..............................................43.6混凝土浇捣......................................................53.7拆模及养护......................................................73.8封砌预留孔......................................................73.9不排水法下沉与封底..............................................73.10主要施工技术措施与质量控制.....................................8四、顶管施工工艺......................................................104.1沉井施工流程...................................................104.2平面布置、井内布置及管内布置...................................114.3泥浆运输.......................................................114.4顶管受力计算...................................................124.5进、出洞加固方案...............................................144.6测量及设备安装.................................................144.7泥水系统安装...................................................174.8顶进开始调试阶段以及土体取样...................................174.9顶进过程中的方向控制...........................................184.10注浆减磨......................................................194.11应急措施......................................................19五、拖管施工工艺......................................................225.1工艺流程.......................................................225.2准备工作.......................................................225.3施工测量.......................................................235.4基坑开挖.......................................................235.5钻机就位.......................................................245.6导向钻进.......................................................255.7回拉扩孔.......................................................265.8管道焊接.......................................................265.9回拉敷设管道...................................................275.10闭水试验......................................................285.11工作坑土方回填................................................285.11拖管质量控制及要求............................................29六、质量管理措施......................................................29七、进度管理措施......................................................