基坑围护、土方开挖及降水专项施工方案上海仁杰建设工程有限公司1目录第一章工程概况.......................................................11.现场概况..........................................................12.工程概述..........................................................13.本标段施工范围、与相邻标段的关系..................................14.开挖基坑标高及深度................................................25.周边环境..........................................................26.本施工方案内容....................................................2第二章编制依据.......................................................3第三章工程地质资料...................................................4第四章基坑围护及降水设计情况简介.....................................51.围护桩设计........................................................52.开挖坡度和钢砼护坡设计............................................53.井点降水设计......................................................5第五章施工部署.......................................................61.施工人员准备......................................................62.材料准备..........................................................63.技术准备..........................................................74.现场准备..........................................................75.总体施工顺序.....................................................86.施工进度安排.....................................................8第六章搅拌桩施工方案.................................................91.施工现场要求......................................................92.机械设备配备......................................................93.施工工艺流程.....................................................104.施工要点.........................................................105.搅拌桩垂直度控制................................................126.质量检验........................................................12第七章压密注浆施工方案..............................................14基坑围护、土方开挖及降水专项施工方案上海仁杰建设工程有限公司21.加固要求........................................................142.注浆加固方案及施工技术措施......................................143.机