【正文】 ountry, the highspeed railway construction is in full construction of the highspeed rail tunnel is the important highspeed iron as medium and longterm railway work planning main railway lines has bee the longest mileage, the highest standards, districts and counties, covering up the largest investment in railway projects.The design relies on Yunnan Liulang tunnel ,the design analysed based on the engineering geology of the tunnel in to the overall design of the tunnel, the related standards and the relevant literature,the tunnel was set first of the main design contents of the tunnel is portal’s design includes checking and stress of portal selection。iii / 81摘 要隨著我國主要鐵路干線列車運(yùn)行速度不斷提高，高速鐵路建設(shè)即將全面展開，高鐵隧道的建設(shè)是其重要課題。隧道設(shè)計(jì)的主要內(nèi)容首先為洞門的設(shè)計(jì)，洞門的設(shè)計(jì)包括洞門選型及受力驗(yàn)算；其次為初期支護(hù)設(shè)計(jì)，初期支護(hù)首先確定支護(hù)形式再分不同級別圍巖分別進(jìn)行抗力計(jì)算；再利用理正軟件對隧道的二襯進(jìn)行內(nèi)力計(jì)算和驗(yàn)算以及配筋計(jì)算；最后為施工組織設(shè)計(jì)，包括隧道不同級別圍巖的開挖方式和爆破方式的設(shè)計(jì)，以及超前支護(hù)、初期支護(hù)和二襯的施工組織設(shè)計(jì)；設(shè)計(jì)還對隧道的防排水以及通風(fēng)和監(jiān)控量測進(jìn)行設(shè)計(jì)，以保證施工的安全級結(jié)構(gòu)的長期穩(wěn)定性。 finally design for construction anization design, including different levels of surrounding rock tunnel excavation and blasting methods, as well as forepoling, initial support and two lining construction anization design。 drainagei / 81目 錄前 言 ............................................................................................................................. 1 第一章 隧道工程概況 ................................................................................................. 2 工程簡介 ................................................................................................................ 2 工程地質(zhì)及工程條件評價(jià) .................................................................................... 2 地層巖性 ...................................................................................................... 2 地質(zhì)構(gòu)造 ...................................................................................................... 3 水文地質(zhì)特征 .............................................................................................. 3 隧道涌水量 .................................................................................................. 3 隧道圍巖分級 .............................................................................................. 3 不良地質(zhì)及特殊巖土問題 .................................................................................... 4 地震烈度及氣象資料 ............................................................................................ 4 地震烈度 ...................................................................................................... 4 氣象資料 ...................................................................................................... 4 隧址場地工程適宜性評價(jià) .................................................................................... 4 第二章 隧道總體設(shè)計(jì) ................................................................................................. 6 一般規(guī)定 ................................................................................................................ 6 隧道的線形設(shè)計(jì) .................................................................................................... 6 　 主要技術(shù)標(biāo)準(zhǔn) ........................................................................................................ 6 設(shè)計(jì)規(guī)范和要求 .................................................................................................... 6 隧道建筑限界及襯砌內(nèi)輪廓設(shè)計(jì) ........................................................................ 7 隧道建筑限界的確定 .................................................................................. 7 隧道襯砌內(nèi)輪廓的設(shè)計(jì) .............................................................................. 8 第三章 洞門設(shè)計(jì) ........................................................................................................... 9 洞門概述 ................................................................................................................ 9 洞口地質(zhì)條件 ........................................................................................................ 9 洞門的設(shè)計(jì)方案 .................................................................................................... 9 洞門形式 ...................................................................................................... 9 洞門構(gòu)造要求 .............................................................................................. 9 洞門尺寸擬定 ............................................................................................ 10 洞門計(jì)算 .................................................................................................... 10 計(jì)算參數(shù) .................................................................................................... 10 ii / 81 建筑材料的容重和容許應(yīng)力 .................................................................... 12 洞門驗(yàn)算 .............................................................................................................. 12 洞門土壓力計(jì)算 ........................................................................................ 12 洞門結(jié)構(gòu)驗(yàn)算 ............................................................................................ 13 第四章 支護(hù)計(jì)算與設(shè)計(jì) ............................................................................................. 16 概述 ...................................................................................................................... 16 初期支護(hù)設(shè)計(jì) ...................................................................................................... 16 Ⅴ級圍巖初期支護(hù)計(jì)算 ............................................................................ 16 噴射混凝土提供的支護(hù)抗力 P1 值 .......................................................... 17 鋼支撐提供的支護(hù)抗力 P2 值 .................................................................. 19 錨桿提供的支護(hù)抗力 P3 值 ...................................................................... 20 圍巖本身提供的支護(hù)抗力 值 ............................................................