多福路建设工程施工二标段深基坑开挖及支护安全专项方案北京市政建设集团有限责任公司多福路建设工程施工二标段项目部二〇一八年七月十六日多福路建设工程施工二标段深基坑开挖及支护安全专项方案编制：审核：审批：北京市政建设集团有限责任公司多福路建设工程施工二标段项目部二〇一八年十六日目录一、工程概况............................................................11.1工程总体概况......................................................11.2超过一定规模的危险性较大的分部分项工程概况........................11.3工程地质情况......................................................61.4周边建筑物及管线情况..............................................61.5基坑支护方式......................................................7二、编制依据............................................................92.1相关图纸资料......................................................92.2相关技术标准.....................................................102.3相关法规.........................................................102.4施工组织设计.....................................................10三、施工计划............................................................103.1施工进度计划.....................................................103.2主要材料、设备进场计划...........................................10四、主要施工方案.......................................................114.1大开槽施工方案...................................................114.1.1作业条件：.................................................124.1.2工艺流程：.................................................124.1.3沟槽开挖...................................................124.1.4钢板桩支护施工顺序及施工工艺...............................154.1.5土方回填...................................................194.2排水方案.........................................................204.2.1水文地质条件...............................................204.2.2排水设计...................................................204.2.3排水维护方案...............................................20五、基坑工程的现场监测.................................................205.1监控手段.........................................................205.2基坑的巡视检查...................................................215.3基坑的仪器监测...................................................22六、施工组织与部署.....................................................35七、安全风险分析、辨识及管理...........................................387.1基坑施工危险源辨识...............................................387.2周边建（构）筑物及管线风险源辨识.................................387.3安全风险管理.....................................................407.4基坑工程应急预案.................................................41八、验收要求...........................................................508.1验收程序.........................................................508.2危大工程验收人员应当包括：.......................................508.3验收内容.........................................................50九、计算书.............................................................519.1大放坡计算.......................................................519.2钢板桩计算.......................................................55深基坑开挖及支护安全专项方案一、工程概况1.1工程总体概况多福路（K2+600~K5+190）建设工程道路全长2.5公里，规划红线宽50...
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