XX隧道V级围岩SVd型断层破碎带施工方案

目录1 编制依据.................................................................22、工程概况...............................................................22.1、工程地质概况及特点................................................22.2、断层破碎带的特点..................................................33、断层破碎带的施工总体方案...............................................34、开挖施工...............................................................44.1、正常段采用三台阶开挖法施工........................................44.2、紧急停车带采用单侧壁导坑（CRD）法开挖.............................55、超前支护...............................................................85.1、正常段 Ф89×6 超前注浆大管棚......................................8XY-2PC 钻机................................................................95.2、交叉口、停车带段采用 Ф42 注浆小导管超前注浆.......................96、初期支护..............................................................116.1、喷射混凝土.......................................................116.2、D25 中空注浆锚杆.................................................126.3、钢筋网铺设.......................................................136.4、钢架的施工.......................................................136.5、超前小导管支护施工...............................................147、仰拱及仰拱填充施工....................................................148、防排水结构系统施工....................................................158.1、中心水沟、检查井、路面预制边沟施工...............................158.2、盲管施工.........................................................168.3、防水板施工.......................................................178.4、施工缝、沉降缝的防水施工.........................................188.5、加宽段、交叉口与车行横洞防排水施工...............................189.二次衬砌...............................................................1910、超前地质预测预报.....................................................2010.1...