暗挖出入口施工方案编制：审核：批准：目录1、编制依据及原则..................................................................................21.1 编制依据...........................................21.2 编制原则...........................................22、工程概况..............................................................................................22.1 地理位置及环境.....................................22.2 施工方法的选择.....................................2下载后可任意编辑3、总体施工原则......................................................................................33.1 小导管超前注浆（管超前，严注浆）...................33.2 缩短进尺、加快支护（短开挖，强支护）...............33.3 保证量测频率、提早封闭（勤量测，早封闭）...........34、总体施工方案及工艺..........................................................................44.1 新奥法分台阶开挖...................................44.2 暗挖通道施工工艺...................................45、暗挖通道初期支护施工方法及技术措施..........................................65.1 大管棚施工.........................................65.2 小导管施工.........................................65.3 喷射混凝土施工.....................................75.4 格栅钢架...........................................96、初期支护关键技术及措施................................................................107、通道二次衬砌施工............................................................................118、二次衬砌关键技术及措施................................................................138.1 保证混凝土的密实度措施............................138.2 保证结构尺寸措施..................................149、现场施工监测要求............................................................................1410、安全注意事项..................................................................................151下载后可任意编辑出入口通道暗挖施工方法1、编制依据及原则1.1 编制依据1.2 编制原则（1）满足业主对质量、安全、文明施工等方面的...
