【正文】 1 目錄 第一章 工程概況 ........................................................................................................................... 3 ............................................................................................................................... 3 ............................................................................................................................... 4 . 氣候特征 ................................................................................................................... 4 .............................................................................................................. 4 ..................................................................................................................... 5 . 水文特征 ................................................................................................................... 7 . 場區(qū)施工條件 ...................................................................................................................... 9 . 交通運(yùn)輸條件 ............................................................................................................ 9 . 施工物資采購條件 ..................................................................................................... 9 第二章 工程重難點(diǎn)分析及對策 ............................................................................................... 10 . 工程重點(diǎn)分析及對策 ..........................................................................................................10 . 環(huán)境保護(hù)及文明施工 .................................................................................................10 . 爆破作業(yè)安全控制 .................................................................................................... 11 . 洞室作業(yè)安全控制 .................................................................................................... 11 . 超前地質(zhì)預(yù)報 ...........................................................................................................13 . 監(jiān)控量測 ..................................................................................................................14 . 工程難點(diǎn)分析及對策 ..........................................................................................................21 . 隧道穿越山谷沖溝淺埋段 ..........................................................................................21 . 隧道穿越溶洞 ...........................................................................................................24 . 隧道穿越斷層 ...........................................................................................................27 . 洞口施工 ..................................................................................................................28 . 隧道貫通施工 ...........................................................................................................35 第三章 總體施工籌劃 ............................................................................................................... 37 . 資源投入（或使用）計劃 ...................................................................................................37 .............................................................................................................37 .............................................................................................................39 .......................................................................................................................40 . 施工場地平面布置方案 .......................................................................................................40 . 施工場地布置原則 ....................................................................................................40 . 施工場地布置方案 ....................................................................................................41 . 工期補(bǔ)救措施 .....................................................................................................................42 第四章 施工方案、施工方法及施工工藝 ............................................................................... 43 . 總體施工方案 .....................................................................................................................43 常規(guī)性總體施工方案 ..................................................................................................43 隧洞施工測量 .............................................................................................................58 隧道總體施工方案 ......................................................................................................67 隧道工程分部分項工程施工方案 ...........................................................................................68 . 明洞及洞口施工 ........................................................................................................69 2 洞身開挖及支護(hù) .........................................................................................................74 ................................................................................................................98 . 洞身防水混凝土襯砌 ............................................................................................... 103 . 施工通風(fēng) ................................................................................................................ 110 . 管線布置 ................................................................................................................ 111 第五章 冬季及雨季施工方案及措施 ..................................................................................... 113 冬季施工安排 .................................................................................................................... 113 冬季施工總體安排 ................................................................................................... 113 冬季施工技術(shù)措施 ................................................................................................... 114 雨季施工安排 .................................................................................................................... 117 雨季施工總