芜湖站东广场地下空间工程深基坑支护开挖及降水专项施工方案编制人：审核人：审批人：中国中铁航空港建设集团有限公司二0一三年二月目录1.编制依据....................................................................................................41.1相关图纸..........................................................................................41.2相关技术标准..................................................................................41.3相关法规..........................................................................................42.工程概况....................................................................................................42.1地理位置..........................................................................................42.2地下空间基坑规模..........................................................................52.3现场标高..........................................................................................52.4临近道路..........................................................................................52.5地下管线..........................................................................................63.地形地貌及水文地质条件........................................................................63.1气象、水文......................................................................................63.2区域地质构造..................................................................................73.3新构造运动与地震..........................................................................73.4场地工程地质条件..........................................................................73.5地下水文及水质..............................................................................93.6地质剖面图....................................................................................104.基坑周边使用条件..................................................................................104.1基坑周边的用途............................................................................104.2地面超载取值................................................................................104.3地下水控制设计............................................................................105.支护结构设计..........................................................................................105.1支护、支撑结构选型....................................................................105.2主要技术标准................................................................................116.总体施工安排..........................................................................................116.1总体施工顺序................................................................................116.2总体组织安排................................................................................137.围堰施工要点..........................................................................................148.基坑上部挖淤放坡（2.45m标高以上）施工要点...............................158.1土方开挖前的准备工作................................................................168.2土方开挖的条件............................................................................168.3开挖范围........................................................................................168.4基坑开挖放坡平面示意图...........................
