【正文】 ......................................................................................................................6 施工工序 ........................................................................................................................7 施工要點 ..........................................................................................................................7 4 洞身開挖 ................................................................................................................................. 11 一般規(guī)定 ...................................................................................................................... 11 施工工序 .................................................................................................................... 12 開挖方法 ...................................................................................................................... 17 連拱隧道 ...................................................................................................................... 22 小凈距隧道 .................................................................................................................. 25 5 初期支護與輔助工程措施 ....................................................................................................... 26 一般規(guī)定 ...................................................................................................................... 26 噴射混凝土 .................................................................................................................. 27 錨桿 ............................................................................................................................. 30 鋼架 ........................................................................................................................... 32 鋼筋網(wǎng) ........................................................................................................................ 34 超前錨桿支護 ............................................................................................................. 342 5． 7 超前小導管預注漿支護 ............................................................................................ 353 超前管棚支護 ......................................................................................................... 374 超前預注漿 ............................................................................................................... 386 地表砂漿錨桿 ........................................................................................................... 408 地質(zhì)注漿 .................................................................................................................... 408 初期支護質(zhì)量要求 ...................................................................................................... 408 6 仰拱與鋪地 ............................................................................................................................ 39 一般規(guī)定 ...................................................................................................................... 39 施工工序 .................................................................................................................... 420 施工要點 .................................................................................................................. 420 7 防水與排水 .......................................................................................................................... 442 一般規(guī)定 .................................................................................................................... 442 施工工序 .................................................................................................................... 452 施工防、排水 ............................................................................................................. 453 結(jié)構(gòu)防、排水 ............................................................................................................. 475 2 8 二次襯砌 ................................................................................................................................. 49 一般規(guī)定 ...................................................................................................................... 49 施工工序 .................................................................................................................... 520 襯砌模板臺車 ............................................................................................................. 520 施工要點 .................................................................................................................. 553 質(zhì)量要求 .................................................................................................................... 618 9 路 面及附屬工程 ..................................................................................................................... 59 路面 ............................................................................................................................. 59 設備洞、橫通道及預留洞室 ........................................................................................ 653 水溝、電纜溝 ............................................................................................................. 663 蓄水池 ....................................................................................................................... 664 預埋件 ....................................................................................................................... 664 10 超前地質(zhì)預報與監(jiān)控量測 ................................................................................................... 674 一般規(guī)定 .................................................................................................................. 674 超前地質(zhì)預報 ........................................................................................................... 675 監(jiān)控量測 ............