【正文】 ............................................................................................. 2 不良地質(zhì) ............................................................................................................. 2 沿線氣象條件 ...................................................................................................... 3 .............................................................................................. 3 三、施工方案 ................................................................................................................... 4 ................................................................................................................... 4 .............................................................................................. 4 .................................................................................................. 6 ................................................................................................................... 7 洞口土石方 ................................................................................................ 7 邊仰坡施工 ................................................................................................ 7 隧道洞口及淺埋段施工 ............................................................................ 8 超前小導管 .............................................................................................. 12 錨桿 .......................................................................................................... 13 鋼筋網(wǎng)、鋼架施工 .................................................................................. 15 安設鋼拱架 .............................................................................................. 16 掛設鋼筋網(wǎng) .............................................................................................. 17 濕噴砼施工 .............................................................................................. 17 ................................................................................................................. 21 工藝流程 .................................................................................................. 21 砼施工技術(shù)措施 ...................................................................................... 22 襯砌施工 .................................................................................................. 24 混凝土運輸組織 ...................................................................................... 26 交底、仰拱及填充施工 .......................................................................... 26 襯砌背后壓漿 .......................................................................................... 28 ................................................................................................ 29 支護加強過渡段施工 .............................................................................. 29 交叉口邊緣工字鋼施工 .......................................................................... 29 輔助坑道進正 洞挑頂施工 ...................................................................... 29 輔助坑道進入正洞后施工 ...................................................................... 30 交叉口處輔助坑道模筑襯砌施工 .......................................................... 31 施工要點 .................................................................................................. 32 四、管理措施 ................................................................................................................. 32 ................................................................................................... 32 一般性技術(shù)措施 ...................................................................................... 32 超前支護及噴錨支護質(zhì)量保證措施 ...................................................... 33 隧道結(jié)構(gòu)混凝土工程質(zhì)量保證措施 ...................................................... 34 光面爆破質(zhì)量控制措施 .......................................................................... 34 隧道工程“不滲不漏不裂”保證措施 .................................................. 35 五、環(huán)境保護措施 .......................................................................................................... 35 ................................................................................................... 35 ................................................................................................ 36 ................................................................................................... 37 ......................................................................................... 37 ....................................................................................................... 37 .................................................................................. 38 六、水土保持措施 .......................................................................................................... 38 ................................................................................................... 38 水環(huán)境保護 .............................................................................................. 38 生態(tài)環(huán)境保護 .......................................................................................... 38 ................................................................................................... 39 七、文明施工措施 .......................................................................................................... 39 .................................................................................. 39 ........................................................................... 40 ....................................................................... 41 .............................................................................. 41 ，創(chuàng)造寬松的外部社會環(huán)境 ............................................... 41 八、隧道施工安全保證措施 ............................................................................................ 42 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