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白石大道东段（丰乐路-甘棠路）改造工程污水管道顶管施工方案白石大道东段（丰乐路-甘棠路）改造工程污水管道顶管施工方案编制单位：江门市润辰市政工程有限公司编制人：技术负责人：编制日期：0白石大道东段（丰乐路-甘棠路）改造工程污水管道顶管施工方案目录第一部分工程概述...............................................................................................................................1一、工程概况...............................................................................................................................1二、地质概况...............................................................................................................................1三、编制依据...............................................................................................................................3四、施工管理组织机构图..........................................................................................................4第二部分顶管法施工...........................................................................................................................4一、沉井施工...............................................................................................................................41、施工顺序..................................................................................................................72、沉井基坑开挖..........................................................................................................73、沉井基坑铺筑..........................................................................................................84、第一节沉井制作......................................................................................................85、第二节沉井制作......................................................................................................106、脚手架方案..............................................................................................................107、沉井下沉..................................................................................................................158、沉井施工监测..........................................................................................................169、封底...........................................................................................................................1710、底板垫层铺筑、底板施工及后背墙施工.............................................................2012、质量保证措施..........................................................................................................22二、旋喷桩施工...........................................................................................................................261、施工工艺..............................................................................................................262、施工注意问题及成品、半成品保护.................................................................28三、泥水机械平衡顶管..............................................................................................................291、拟投入的机械设备如下：......................................................................................292、施工顺序..................................................................................................................293、工作坑及顶进中的测量................