I华坪至丽江高速公路第18合同段目经理部隧道开挖支护安全专项施工方案目录1工程概况................................................................11.1工程简介..........................................................11.2工程地质与水文地质概况.............................................11.3不良地质作用及特殊岩土............................................41.4隧道区工程地质评价................................................51.5工程重难点及应对措施..............................................61.6地震等级.........................................................111.7施工周边环境及相关建筑物情况.....................................112编制依据...............................................................122.1文件依据..........................................................122.2规范依据.........................................................123施工计划...............................................................143.1施工进度安排.....................................................143.2机械设备配置.....................................................153.3施工材料配备计划.................................................164施工工艺...............................................................174.1洞身开挖施工工艺.................................................174.2洞身支护参数.....................................................204.3开挖方法.........................................................234.3.1预留核心土开挖方法..........................................234.3.2CD法.......................................................244.3.3三台阶开挖方法..............................................264.3.4台阶法施工..................................................284.3.5全断面开挖方法..............................................284.3.6横洞施工开挖方法............................................294.3.7仰拱开挖....................................................304.3.8隧道开挖动态管理............................................31中建隧道建设有限公司III华坪至丽江高速公路第18合同段目经理部隧道开挖支护安全专项施工方案4.4隧道超前及初期支护施工...........................................324.4.1超前大管棚施工..............................................324.4.2超前小导管施工..............................................364.4.3锚杆施工....................................................384.4.4钢筋网片....................................................424.4.5钢拱架支护施工..............................................434.4.6喷射混凝土作业..............................................454.4.7各工序质量保证措施..........................................484.5钻爆施工.........................................................494.5.1钻爆施工工艺流程............................................494.5.2钻爆施工方法................................................494.5.3钻爆效果检验................................................514.5.4控制超欠挖措施..............................................515劳动力计划.............................................................525.1施工人员配备.....................................................526、施工安全保证措施......................................................536.1安全管理组织机构.................................................536.1.1安全管理组织机构图..........................................536.1.2安全生产领导小组........................................
