给水顶管工程施工方案目录给水顶管工程施工方案...................................................................................................................................................13.1.1 主要施工工艺流程........................................................................................................................................13.2.1 顶管方式选择................................................................................................................................................ 23.2.2 临建场地....................................................................................................................................................... 23.2.3 测量............................................................................................................................................................... 23.2.3.1 平面测量控制....................................................................................................................................................23.2.3.2 高程测量............................................................................................................................................................23.2.3.3 顶管施工测量....................................................................................................................................................33.2.3.4 测量要求............................................................................................................................................................33.2.4 顶管工作坑尺寸设计.....................................................................................................................................33.2.5 工作坑结构设计及做法.................................................................................................................................43.2.5.1 锚喷工作坑的施工顺序...........................................................................................................
