c目录1.编制依据...................................................................12.编制原则...................................................................13.工程概况...................................................................13.1地质、水文情况........................................................13.2设计参数.............................................................................................24.人员及机械配置.............................................................34.1人员配置.............................................................................................34.2.机械及设备配置...................................................................................35.施工工艺....................................................................................................45.1.洞身开挖............................................................................................45.1.1隧道开挖总体施工方案..................................................................45.1.2.CD法.........................................................................................45.1.3.三台阶七步开挖法................................................75.2.爆破设计..........................................................................................115.2.1.CD法爆破设计.....................................................................115.2.2.三台阶七步开挖法.................................................................165.2.3爆破设计的优化.....................................................................215.2.4.爆破施工控制要点.................................................................225.3．超前支护.........................................................................................225.3.1.大管棚................................................................................225.3.2.超前小导管..........................................................................235.4.初期支护..........................................................................................255.4.1.锚杆...................................................................................255.4.2钢筋网................................................................................265.4.3型钢钢架..............................................................................275.4.4湿喷砼.................................................................................305.5.二次衬砌..........................................................................................335.5.1仰拱施工..............................................................................335.5.2拱墙二次衬砌施工..................................................................355.5.3衬砌钢筋..............................................................................375.5.4．防排水...............................................................................386.安全保证体系..............................................................396.1.安全方针..........................................................................................396.2.安全目标..........................................................................................406.3.安全管理体系....................................................................................406.3.1.安全管理组织机构......................................
