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隧道建设(中英文) ›› 0, Vol. ›› Issue (): 1451-1460.DOI: 10.3973/j.issn.2096-4498.2021.09.002

• 川藏铁路隧道专栏 • 上一篇    下一篇

川藏铁路色季拉山隧道设计方案研究

李国良向亮*陈敬军朵生君刘国庆陈绍华   

  1. (中铁第一勘察设计院集团有限公司, 陕西 西安 710043)
  • 出版日期:2021-09-20 发布日期:2021-10-01
  • 作者简介:李国良(1966—),男,甘肃庄浪人,1988年毕业于兰州交通大学,铁道工程专业,本科,正高级工程师,全国勘察设计大师,现从事隧道与地下工程设计工作。E-mail: 1196328566@qq.com。*通信作者: 向亮, E-mail: 309028823@qq.com。
  • 基金资助:
    中国铁建股份有限公司科技重大专项(2019-A04); 中铁第一勘察设计院集团有限公司科研项目(院科(川藏)19-14

Design Scheme of Shergyla Mountain Tunnel on SichuanTibet Railway

LI Guoliang, XIANG Liang*, CHEN Jingjun, DUO Shengjun, LIU Guoqing, CHEN Shaohua   

  1. (China Railway First Survey and Design Institute Group Co., Ltd., Xian 710043, Shaanxi, China)
  • Online:2021-09-20 Published:2021-10-01

摘要: 色季拉山隧道为川藏铁路控制性工程之一,长度超越我国已建和在建山岭铁路隧道,特长隧道面临陡峻的高原地形、复杂的地质条件、恶劣的高原高寒环境和严格的环保要求,隧道修建将面对前所未有的技术难题。论文结合隧道环境及工程、水文地质条件及建设重难点,经专题研究,开展了多个高原复杂越岭线位、隧道分合修、特长隧道总体施工方法和防灾救援等重大工程方案研究,对TBM法隧道段设计、TBM设备选型及关键技术要求、长大辅助坑道设计、越岭防灾救援等关键设计方案进行分析论述,并针对高地应力下的硬岩岩爆防控关键技术提出成套设计方案。色季拉山隧道推荐38 km长隧道越岭方案,采用“敞开式TBM为主,钻爆法为辅”的分修方案,按照“以人为本、有序疏散、安全待避、限时救援”的原则设计2座紧急救援站,制定了“预警先行,主、被动防控及作业人员安全防护”的岩爆综合防治技术。相关设计可丰富我国复杂环境下长大越岭隧道的设计技术,也可为后续类似工程的建设提供借鉴和参考。

关键词: 川藏铁路, 色季拉山隧道, TBM, 特长隧道, 防灾救援, 岩爆防控

Abstract: The Shergyla Mountain tunnel is one of the controlling projects of the SichuanTibet railway with a length that is larger than those of the mountain railway tunnels built or under construction in China. It faces a steep plateau terrain, complex geological conditions, a harsh plateau alpine environment, and strict environmental protection requirements. Consequently, tunnel construction will face unprecedented technical problems. A series of studies, including those on the complex mountain crossing lines in the plateau area, separated and incorporated construction of tunnels, overall construction methods of extralong tunnels, and disaster prevention and rescue, have been conducted based on tunnel environment and engineering, hydrogeological conditions, and the key and difficult points of construction. In this study, targeted designs on the tunnel boring machine (TBM) section, TBM equipment selection and key technical requirements, long and large auxiliary tunnel, and crossmountain disaster prevention and rescue are analyzed and discussed, and a complete set of design schemes is put forward for hard rock burst prevention and control under high geostress. Taking the Shergyla Mountain tunnel as an example, a 38 kmlong mountaincrossing tunnel, a separated tunnel construction scheme with open TBM as the main scheme and the drillandblast method as the assistant scheme, two rescue station settings according to the design concept of "humanoriented, orderly evacuation, safe waiting for refuge, and limited time rescue," and a comprehensive rockburst prevention and control technology of "early warning, active and passive prevention and control, and safety protection of operators" are recommended. The relevant designs can provide references for the design of long and large mountaincrossing tunnels in a complex environment for similar projects in China in the future.

Key words: Sichuan-Tibet railway, Shergyla Mountain tunnel, tunnel boring machine, extra-long tunnel, disaster prevention and rescue, rockburst prevention and control

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