【正文】 the situation as a result of poor design of the excavation crosssection using a larger hole in the wall guide method. NATM is the main tunnel construction methods. NATM is the construction method that Shotcrete Anchor is the main means of support by detecting the the monitoring of mechanical form of rock and Supporting the work of state structures evaluate the level of design and construction of improvements in a timely manner with the adjustment Lead pipe roof supports the early Support adopts advanced or radial grouting bolt linked work of steel gratings and construction technology, such as wetspray. When the rock and the initial support facilities achieve stability then secondary lining Keywords: Expressway Tunnel Design of lining structure Construction NATM 目錄 第 1 章 緒論 ....................................................................................................................... 1 課題研究背景 ....................................................................................................... 1 國內(nèi)公路隧道發(fā)展?fàn)顩r ....................................................................................... 1 國外公路隧道發(fā)展?fàn)顩r ....................................................................................... 2 設(shè)計(jì)內(nèi)容 ............................................................................................................... 3 主要研究的內(nèi)容 ....................................................................................... 3 基本要求 ................................................................................................... 3 第 2 章 設(shè)計(jì)的原則 和標(biāo)準(zhǔn) ............................................................................................... 4 設(shè)計(jì)依據(jù) ............................................................................................................... 4 主要技術(shù)指標(biāo) ....................................................................................................... 4 第 3 章 工程概況 ............................................................................................................... 5 工程概況 ............................................................................................................... 5 工程地質(zhì)及水文地質(zhì) ........................................................................................... 5 地形地貌 ................................................................................................... 5 地質(zhì)構(gòu)造 ................................................................................................... 5 地層巖性 ................................................................................................... 7 水文地質(zhì)特征 ........................................................................................... 9 巖溶發(fā)育特征 ........................................................................................... 9 不良地質(zhì)現(xiàn)象 ........................................................................................... 9 地震烈度 ................................................................................................. 10 隧道圍巖分類 ......................................................................................... 10 第 4 章 內(nèi)輪廓的確定 ..................................................................................................... 12 內(nèi)部凈空的確定 ................................................................................................. 12 結(jié)構(gòu)斷面形式及尺寸初步擬定 ......................................................................... 13 第 5 章 公路隧道襯砌結(jié)構(gòu)的設(shè)計(jì)和計(jì)算 ..................................................................... 14 圍巖壓力計(jì)算 ..................................................................................................... 14 Ⅲ級圍巖壓力計(jì)算 ................................................................................. 14 Ⅴ級圍巖壓力計(jì)算 ................................................................................. 14 襯砌內(nèi)力計(jì)算 ..................................................................................................... 15 ANSYS 加載求襯砌內(nèi)力過程 ............................................................................... 15 Ⅲ級圍巖襯砌內(nèi)力計(jì)算與強(qiáng)度檢驗(yàn) ..................................................... 16 Ⅴ級圍巖襯砌內(nèi)力計(jì)算與強(qiáng)度檢算 ..................................................... 19 襯砌結(jié)構(gòu)強(qiáng)度檢算原理 ..................................................................................... 22 襯砌截面配筋計(jì)算 ............................................................................................. 23 截面配筋原理 ......................................................................................... 23 Ⅲ級圍巖配筋計(jì)算 ................................................................................. 24 Ⅴ級圍巖配筋計(jì)算 ................................................................................. 25 裂縫檢驗(yàn) ............................................................................................................. 27 第 6 章 隧道施工技術(shù)及施工工藝 ................................................................................. 29 新 奧法施工 ......................................................................................................... 29 新奧法施工的基本原則 ......................................................................... 29 新奧法的施工工序 ................................................................................. 30 施工方案的確定 ................................................................................................. 30 全斷面開挖施工 ..................................................................................... 31 爆破設(shè)計(jì) ............................................................................................................. 31 炮眼的種類和作用 ................................................................................. 32 掏槽形式 ................................................................................................. 32 隧道爆破的參數(shù)設(shè)計(jì) ....................................................