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【正文】 ...................................................................................................................... 1 工程概論 ...................................................................................................................... 1 隧道概述 ........................................................................................................... 1 工程地質(zhì)條件 ................................................................................................... 1 區(qū)構(gòu)造 ............................................................................................................... 2 水文地質(zhì)條件域地質(zhì) ....................................................................................... 3 2 初步預(yù)設(shè)計(jì) ................................................................................................................... 4 圍巖分類 ...................................................................................................................... 4 隧道洞口位置及形式 .................................................................................................. 5 洞門位置 ............................................................................................................ 5 洞門形式 ........................................................................................................... 5 洞門確定 ............................................................................................................ 6 隧道橫斷面設(shè)計(jì) .......................................................................................................... 6 隧道凈空與限界 ................................................................................................ 6 隧道襯砌 內(nèi)輪廓線 ............................................................................................ 7 3 隧道洞門設(shè)計(jì)及強(qiáng)度、穩(wěn)定性驗(yàn)算 ........................................................................... 9 洞門設(shè)計(jì) ...................................................................................................................... 9 洞門強(qiáng)度及穩(wěn)定性驗(yàn)算 ............................................................................................ 10 翼墻 .................................................................................................................. 11 主墻與翼墻共同作用的 B 部分 ...................................................................... 12 主墻 B 部分 ...................................................................................................... 13 主墻 C 部分 ...................................................................................................... 13 出口段洞門設(shè)計(jì) ........................................................................................................ 14 4 襯砌內(nèi)力及配筋計(jì)算 ................................................................................................. 14 Ⅴ 級(jí)圍巖襯砌設(shè)計(jì) .................................................................................................... 14 支護(hù)參數(shù) .......................................................................................................... 15 襯砌內(nèi)力計(jì)算 .................................................................................................. 15 配筋計(jì)算 .......................................................................................................... 34 襯砌安全性評(píng)價(jià) .............................................................................................. 37 Ⅳ級(jí)圍巖段襯砌設(shè)計(jì)(直墻拱形) ........................................................................ 38 支護(hù)參數(shù) .......................................................................................................... 38 襯砌內(nèi)力計(jì)算 .................................................................................................. 38 Ⅱ、Ⅲ級(jí)圍巖段襯砌設(shè)計(jì) ........................................................................................ 47 支護(hù)參數(shù) .......................................................................................................... 48 配筋計(jì)算 .......................................................................................................... 48 5 輔助工程設(shè)計(jì) ............................................................................................................. 49 偏壓處理方法 ............................................................................................................ 49 超前支 護(hù)設(shè)計(jì) ............................................................................................................ 49 6 施工組織設(shè)計(jì) ............................................................................................................. 51 概述 ............................................................................................................................ 51 隧道工程概述 .................................................................................................. 51 資料依據(jù) .......................................................................................................... 52 施工準(zhǔn)備工作 .................................................................................................. 52 施工方法 .................................................................................................................... 53 施工方法選擇的原則 ...................................................................................... 53 開(kāi)挖方法 .......................................................................................................... 53 普通水泥砂漿錨桿與噴射混凝土施工 .................................................................... 57 普通混凝土砂漿錨桿施工 .............................................................................. 57 噴射混凝土施工 .............................................................................................. 59 爆破設(shè)計(jì) .................................................................................................................... 60 炸藥品種選擇 ................................................................................................. 60 掘進(jìn)進(jìn)尺 L .......
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