土工基础

土工基础 ›› 2022, Vol. 36 ›› Issue (1): 12-15.

• 工程实录 • 上一篇    下一篇

周盘沟隧道岩溶段围岩稳定性分析及处理措施

刘高星1,史春宇1,许东阳1,霍西彩1,杜恒凯1,杨凡杰2   

  1. （1.中交隧道工程局有限公司，北京 100000；2.中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，武汉 430071）
  • 收稿日期:2021-08-23 修回日期:2021-08-26 出版日期:2022-02-28 发布日期:2022-03-09
  • 作者简介:刘高星（1990-），男，工程师，研究方向为工程建设项目管理与技术研究。
  • 基金资助:
    国家重点研发计划项目(No.2019YFC0605103，No.2019YFC0605100)；国家重点研发计划资助(No.2019YFC0605104，No.2019YFC0605100)

Stability Analysis and Mitigation Measures of Karst Rock Cavities Surrounding Zhoupangou Tunnel

LIU Gaoxing1, SHI Chunyu1, XU Dongyang1, HUO Xicai1, DU Hengkai1， YANG Fanjie2   

  1. (1.CCCC Tunnel Engineering Co. Led., Beijing 100000；
    2.State Key Laboratory of Geomechanics and Geotechnical Engineering, 
    Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071)
  • Received:2021-08-23 Revised:2021-08-26 Online:2022-02-28 Published:2022-03-09

摘要： 根据周盘沟隧道岩溶洞段特殊地质条件，以隧道出口左线掌子面里程LK28+284附近的典型岩溶洞段为例，通过地质雷达探测与工程地质分析，评价了该典型洞段的围岩稳定性，提出了拱顶溶腔及岩溶隧道洞身的支护处理措施，并通过现场工程应用验证了所提支护措施的合理性，保证了施工顺利进行。研究成果可为类似岩溶隧道的设计和施工提供参考。

关键词: 隧道, 岩溶, 稳定性分析, 支护措施

Abstract: Based on the special geological conditions of the karst rock cavity section in the Zhoupangou tunnel construction at Station LK28+284 on the left side of the tunnel exit, this paper presents a case history of stability evaluation. The through geological radar detection and engineering geological analysis, the surrounding karst rock cavity stability of the typical tunnel section was evaluated and stability mitigation measures of karst rock cavities near the crest and sides of the tunnel were proposed. These mitigation measures were also verified as appropriate during the construction.

Key words: tunnels, karst rock, stability analysis, supporting measures

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