隧道二衬专项施工方案目录一、编制依据、范围及原则.........................................................................................................................11.1编制依据.............................................................................................................................................11.2编制范围.............................................................................................................................................11.3编制原则...........................................................................................................................................1二、工程概况.................................................................................................................................................22.1设计概况.............................................................................................................................................22.2隧道简介.............................................................................................................................................32.3施工人员准备.....................................................................................................................................7三、施工组织方案.........................................................................................................................................73.1总体施工安排....................................................................................................................................73.2二衬施工顺序....................................................................................................................................83.3施工进度及计划.................................................................................................................................83.3.1工期安排原则...........................................................................................................................83.3.2总体工期安排..........................................................................................................................93.4主要施工进度指标.............................................................................................................................9四、设备机具配置.........................................................................................................................................9五、施工工艺、方法、技术措施...............................................................................................................105.1施工工艺流程..................................................................................................................................105.2施工方法及技术措施......................................................................................................................105.2.1隧道初支断面净空测量.........................................................................................................115.2.2清底和基面处理.....................................................................................................................115.2.3仰拱及仰拱填充施工方案......................................................................................................135.2.4防排水施工.......................................................................