银川市爱心护理院-8#楼医疗保健楼和医疗展厅超市及地下车库工程深基坑专项施工方案中铁二十一局集团第二工程有限公司二〇一七年二月同心县妇幼保健所建设项目-计划生育服务站、业务用房工程深基坑（土方开挖及护坡支护）专项施工方案编制：审核：审批：二〇一七年二月目录一、工程概况..............................................................................1（一）工程总概况..............................................................................................1（二）建筑结构概况........................................................................................1（三）深基坑概况..............................................................................................2（四）基坑周边状况........................................................................................2二、编制依据..............................................................................3三、基坑场地土层性质、周围环境及地下水情况..................5（一）场地土层性质........................................................................................5（二）周围环境....................................................................................................7（三）地下水情况..............................................................................................7四、方案的确定..........................................................................8（一）基坑侧壁安全等级确定..................................................................8（二）基坑降水方案确定.............................................................................8（三）土方开挖方案确定...........................................................................14（四）边坡支护方案确定...........................................................................15（五）边坡防雨措施确定...........................................................................30五、土方开挖施工危险源的辨识及监控措施........................30（一）土方开挖工程事故类型................................................................30（二）引发事故的直接原因.....................................................................31（三）危险源的监控措施...........................................................................31六、土方开挖施工....................................................................32（一）施工总体部署......................................................................................32（二）施工准备..................................................................................................32（三）施工进度计划......................................................................................36（四）土方开挖施工......................................................................................36七、质量保证措施....................................................................40（一）组织保证体系......................................................................................40（二）质量管理程序......................................................................................41（三）各分项工程质量标准.....................................................................41八、安全管理............................................................................42（一）安全组织机构......................................................................................42（二）安全生产措施...............
