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隧道建设(中英文) ›› 2021, Vol. 41 ›› Issue (S1): 394-.DOI: 10.3973/j.issn.2096-4498.2021.S1.051

• 施工技术 • 上一篇    下一篇

高黎贡山隧道大规模突涌综合治理技术

贾建波1, 高广义2, 温兴明3   

  1. 1. 中铁隧道局集团有限公司, 广东 广州 511458 2. 中铁隧道勘察设计研究院有限公司, 广东 广州 〓511458 3. 云桂铁路云南有限公司, 云南 昆明 650011
  • 出版日期:2021-07-30 发布日期:2021-08-30
  • 作者简介:贾建波(1970—),男,河北深泽人,2009年毕业于石家庄铁道学院,土木工程专业,本科,高级工程师,主要从事铁路隧道施工及竖井施工技术工作。E-mail: 523265304@qq.com。
  • 基金资助:
    中国国家铁路集团有限公司重点项目(P2019G055); 中铁隧道局集团科技创新计划(隧研合2018-32变)

Comprehensive Treatment Techniques for LargeScale Water and Mud Outburst in Gaoligongshan Tunnel

JIA Jianbo1, GAO Guangyi2, WEN Xingming3   

  1. (1. China Railway Tunnel Group Co., Ltd., Guangzhou 511458, Guangdong, China; 2. China Railway Tunnel Consultants Co., Ltd., Guangzhou 511458, Guangdong, China; 3. Yungui Railway Yunnan Co., Ltd., Kunming 650011, Yunnan, China)
  • Online:2021-07-30 Published:2021-08-30

摘要: 为快速解决大瑞铁路高黎贡山隧道出口端 TBM掘进D1K224+200+230里程段后出现的突泥涌水地质灾害、隧道塌方冒顶、 TBM被关在掌子面、皮带传送机中断等问题。根据隧道工程地质条件和施工开挖过程情况,分析隧道突涌原因,借鉴国内富水全风化花岗岩突涌处治经验,提出在隧道洞身地表河道改修、塌坑回填、深孔加固,确保洞顶稳定和防止水流下渗,同时在突涌体两端施作注浆加筋挡墙,为洞内清淤和 TBM恢复掘进提供安全保障,形成了“高位锁口、泄水降压、两头夹击、支护加强、快挖快封”的施工技术措施对溃口进行处理,成功解决了富水风化花岗岩隧道溃口的突涌塌方冒顶的技术难题。

关键词:

高黎贡山隧道, TBM, 突涌, 地表防渗, 加筋挡墙, 高位锁口, 泄水降压

Abstract: After the TBM boring in the exit end of the Gaoligongshan tunnel of the DaliRuili railway at section D1K224+200~+230, sudden water and mud outburst occur, which leads to tunnel collapse, TBM jam, and belt conveyor stop. As a result, the causes for water and mud outburst are analyzed, and a series of techniques such as surface river channel repair, collapse cave backfilling, and deephole grouting reinforcement are conducted to guarantee the tunnel roof stability and prevent water inrush based on treatment experience of water and mud outburst in waterrich fullyweathered granite. Meanwhile, the grouting reinforcement retailing walls are conducted on both sides of water and mud outburst point to provide safety guarantee for mud clearing and TBM reboring. A treatment scheme of highlevel lock, discharge and depressurization, twoend stop, support strengthening, and fastexcavation and fast seal is formed, which has successfully solved the water and mud outburst in tunnel in waterrich weathered granite.

Key words: Gaoligongshan tunnel,  , TBM, water and mud outburst, surface seepage control, reinforced retaining wall, highlevel lock, discharge and depressurization

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