吉林大学学报(地球科学版) ›› 2018, Vol. 48 ›› Issue (5): 1596-1602.doi: 10.13278/j.cnki.jjuese.20180159

• 中国水利学会勘测专业委员会专栏 • 上一篇    

基于模糊综合评判的护盾式TBM施工围岩稳定性分类

杨继华1, 路新景1, 闫长斌2, 齐三红1, 郭卫新1   

  1. 1. 黄河勘测规划设计有限公司, 郑州 450003;
    2. 郑州大学土木工程学院, 郑州 450001
  • 收稿日期:2018-06-01 发布日期:2018-11-20
  • 作者简介:杨继华(1980-),男,高级工程师,博士,主要从事岩土工程勘察、设计与研究工作,E-mail:yangjihua68@sohu.com
  • 基金资助:
    国家自然科学基金项目（U1504523）；河南省重点研发与推广专项（182102210014）；黄河勘测规划设计有限公司自主研发项目（2016-ky56（2））

Stability Classification of Tunnel Surrounding Rock During Shield TBM Construction Based on Fuzzy Comprehensive Evaluation

Yang Jihua1, Lu Xinjing1, Yan Changbin2, Qi Sanhong1, Guo Weixin1   

  1. 1. Yellow River Engineering Consulting Co., Ltd, Zhengzhou 450003, China;
    2. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
  • Received:2018-06-01 Published:2018-11-20
  • Supported by:
    Supported by National Natural Science Foundation of China (U1504523), Key Science and Technology Research Project of Henan (182102210014) and Independent Research and Development Project of Yellow River Engineering Consulting Co., Ltd(2016-ky56(2))

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摘要： 针对传统分类方法难以对围岩稳定性进行评价的问题，以护盾式全断面隧掘进机（TBM）施工隧洞的围岩稳定性评价为目标，在研究护盾式TBM施工特点的基础上，参照国内、外常用的围岩分类方法，选择了岩石的回弹值、刀盘推力、刀盘扭矩、片状岩渣含量、地下水渗流量和最大主应力与洞轴线的夹角作为围岩稳定性评判因素。采用模糊综合评判方法，建立围岩稳定性多因素评判模型，通过确定评判因素的权重向量选取隶属函数，进而对围岩稳定性进行定量评判，并将之应用到某工程双护盾TBM施工的围岩稳定性评判中。结果表明：序号1、2、3和4洞段对应的较稳定、较稳定、局部稳定性差和不稳定的最大隶属度分别为0.494、0.403、0.388、0.442，分别对应Ⅱ、Ⅱ、Ⅲ和Ⅳ类围岩；模糊综合评判方法合理，评判结果较为可靠。研究成果对护盾式TBM施工的围岩稳定性评价、围岩分类及支护方式选择等具有参考价值。

关键词: 隧洞, 护盾式TBM, 围岩稳定性, 模糊综合评判

Abstract: Considering the difficulty of the traditional method in the classification and evaluation of surrounding rock stability of TBM tunnel, a new system of stability classification of the surrounding rock with shield TBM tunnel is developed. Based on the characters of a shield TBM construction and some regular classification methods, the evaluation factors were selected, including rock rebound value, cutterhead thrust, cutterhead torque, content of rock chips cut by TBM, groundwater flow and angle between the maximum principal stress and the tunnel axis. The multi-factor model of a stability analysis of surrounding rock was established by using fuzzy comprehensive evaluation method. The surrounding rock stability was quantitatively assessed by determining weight vector of impact factors and by selecting membership functions. This method was applied to the stability evaluation of tunnel surrounding rocks during a double shield TBM construction. The results showed that the tunnel sections of No. 1, 2, 3 and 4 were relatively stable, relatively stable, local stabile, and instable respectively. Their maximum membership degrees were 0.494, 0.403, 0.388, and 0.442, corresponding to the surrounding rocks of Ⅱ, Ⅱ, Ⅲ and Ⅳ. The developed method based on fuzzy comprehensive evaluation is reasonable, and the evaluation result is reliable. The research results have reference value for surrounding rock stability evaluation, surrounding rock classification, and support mode selection of shield TBM construction.

Key words: tunnel, shield TBM, surrounding rock stability, fuzzy-synthetical evaluation

中图分类号: 

  • U451.2
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