*＊*＊＊＊排水管网完善二期工程Ⅱ标管道（沟槽）开挖支护工程专项方案＊＊＊＊****＊＊有限公司2024 年 0 月 20 日目 录第一章 编制依据..............................................................4第二章 工程概况及水文地质条件................................................21．工程概况...............................................................32．水文地质条件...........................................................33．工程地质条件...........................................................3第三章 施工准备..............................................................31、现场封闭...............................................................42、现场出土口、运输道路布置和现场保洁.....................................43、测量控制网.............................................................44、委托监测...............................................................45、夜间施工照明布置.......................................................46、组织管理...............................................................47、物资器材准备...........................................................48、钢板桩支护数量.........................................................89、物资及施工机械配置.....................................................8第四章 基坑(沟槽）开挖及支护施工流程及方法...................................91、基坑（沟槽）工程概况和支护设计方案.....................................92、基坑支护施工步骤.......................................................93、劳动力组织.............................................................94 、钢板桩施工工艺要求...................................................105 、槽钢施工工艺要求.....................................................126、巷道支护施工工艺要求..................................................127、钢板桩施打、拔除的施工控制措施........................................128、钢板桩的拔除..........................................................139、施工问题及处理..............................................
