中铁五局（集团）有限公司平潭综合实验区坛西立交至潭城南路电力隧道工程基坑开挖及支护安全专项施工方案目录1、编制依据及原则........................................................................................................................11.1、编制依据.........................................................................................................................11.2、编制原则.........................................................................................................................12、工程概况及设计概况................................................................................................................12.1、工程简介.........................................................................................................................12.2、地质情况.........................................................................................................................42.3、设计概况.........................................................................................................................42.4、基坑周边环境.................................................................................................................62.5、施工重难点.....................................................................................................................73、施工准备、部署........................................................................................................................73.1、总体施工流程.................................................................................................................73.2、施工准备.........................................................................................................................73.3、施工部署.........................................................................................................................73.3、组织机构及人员配备......................................................................................................83.4、工期安排.......................................................................................................................103.5、施工场地布置...............................................................................................................104、钢板桩施工..............................................................................................................................104.1、施工工艺.......................................................................................................................104.2、施工方法.......................................................................................................................104.3、钢板桩施工安全措施....................................................................................................155、钢管支撑施工..........................................................................................................................165.1、钢管支撑布置...............................................................................................................165.2、钢管支撑构造...............................................................................................................165.3、钢支撑施工...................................................................................................................175.4、钢支撑的施工安全措...
