【正文】 ..........................................15 施工總平面布置示意圖、橫道圖 ......................................................15第五章 臨時工程 .........................................................................................16 臨時工程施工方案 ..............................................................................16 編制依據(jù) ......................................................................................16 編制原則 ......................................................................................16 施工便道設置方案 ......................................................................16 拌和站規(guī)劃方案 ..........................................................................17 隧道洞口布置 ..............................................................................19 炸藥庫建設 ..................................................................................19 項目部駐地及工隊住房 ..............................................................21第六章 重難點工程 .....................................................................................22 工程重難點及主要技術措施 ..............................................................22 高地溫地段 ..................................................................................22 巖爆地段 ......................................................................................22 富水地段 ......................................................................................23 與后嶺下隧道（下行線）交叉段 ..............................................23 出口下穿 316 國道段 ..................................................................24 出口小凈距段 ..............................................................................24 后嶺下隧道下行線隧道出口進洞方案 ..............................................25第七章 施工方案 .........................................................................................29鐵路擴能改造工程隧道下行線施工組織設計 洞口排水 ..............................................................................................29 洞口施工 ..............................................................................................29 洞口邊、仰坡開挖防護 ..............................................................29 錨固樁 ..........................................................................................30 超前支護 ......................................................................................30 超前預報施工方案 ..............................................................................35 正洞開挖 ..............................................................................................39 V 級圍巖段—四步 CD 法施工 ....................................................40 V 級圍巖段—雙側壁導坑法施工 ..............................................40 Ⅳ、Ⅴ級圍巖一般段采用三臺階法 .........................................42 III 級圍巖段—臺階法施工 ......................................................45 II 級圍巖段—全斷面法施工 ....................................................46 初期支護 ..............................................................................................47 鋼筋網(wǎng) ..........................................................................................47 格柵(型鋼)鋼架 ..........................................................................47 系統(tǒng)錨桿 ......................................................................................48 噴射混凝土 ..................................................................................50 監(jiān)控量測 ..............................................................................................52 量測項目 ......................................................................................53 量測斷面間距 ..............................................................................53 量測斷面布置 ..............................................................................54 仰拱（填充、底板）施工 ..................................................................55 仰拱施工工藝流程 ......................................................................55 仰拱混凝土施工工藝 ..................................................................55 仰拱和底板施工應符合下列要求 ..............................................56 結構防排水 ..........................................................................................56 二次襯砌施工 ......................................................................................57 附屬工程施工 ....................................................................................61 附屬工程施工要求 ....................................................................61第八章 資源配置 ...........................................................................................63 主要工程材料設備供應方案 ..............................................................63 甲供物資設備采購供應與管理 ..................................................63 主要自購物資設備供應與管理 ..................................................63 主要施工裝備的數(shù)量及進場計劃 ......................................................64 勞動力計劃 ..........................................................................................64第九章 管理措施 ...........................................................................................65鐵路擴能改造工程隧道下行線施工組織設計 標準化管理 .........................................................................................65 質(zhì)量管理措施 .....................................................................................66 組織保證 .....................................................................................66 思想保證 .....................................................................................67 技術保證 .....................................................................................67 經(jīng)濟保證 .....................................................................................68 質(zhì)量管理保證 .............................................................................69 材料、機械設備保證 .................................................................69 試驗檢測保證 .............................................................................70 安全管理措施 .....................................................................................71 安全目標 ......