Influence analyses on force and deformation of existing tunnels induced by landslide in mountain region

ZHANG Zhi-guo; MA Bing-bing; HUANG Mao-song; XU Xiao-yang

doi:10.16285/j.rsm.2017.0900

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Influence analyses on force and deformation of existing tunnels induced by landslide in mountain region

更新时间：2026-06-25

- Influence analyses on force and deformation of existing tunnels induced by landslide in mountain region
- Vol. 39, Issue 10, Pages: 3555-3564(2018)
- 作者机构：
  
  1. 上海理工大学环境与建筑学院,上海,200093
  2. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏,徐州,221116
  3. 同济大学地下建筑与工程系,上海,200092
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2017.0900
  CLC： P694
- Online First：04 November 2018，
  
  Published：2018
- 稿件说明：
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ZHANG Zhi-guo, MA Bing-bing, HUANG Mao-song, et al. Influence analyses on force and deformation of existing tunnels induced by landslide in mountain region[J]. 2018, 39(10): 3555-3564.
DOI：

ZHANG Zhi-guo, MA Bing-bing, HUANG Mao-song, et al. Influence analyses on force and deformation of existing tunnels induced by landslide in mountain region[J]. 2018, 39(10): 3555-3564. DOI： 10.16285/j.rsm.2017.0900.

摘要

山区滑坡对既有隧道结构的受力变形有着重要影响。既有成果一般将滑坡体和隧道结构分开单独研究，而将两者结合起来进行研究还不多见，且多数停留在实际工程监测分析上，利用理论解析法对隧道-滑坡体相互作用的分析更是少见。首先，基于传递系数法和极限平衡法对滑坡下滑推力进行了计算；其次，将滑坡推力施加在既有隧道结构上，建立隧道-滑坡相互作用的弹性地基梁模型，采用传递矩阵法求解出隧道结构任意截面的内力和位移。在此基础上，建立三维数值模型对滑坡诱发隧道变形进行模拟，将数值分析结果与理论计算值进行对比验证，获得了较好的一致性。最后，针对滑坡推力大小、滑体内地基系数、滑床内地基系数、隧道衬砌刚度以及隧道长度等参数进行了影响分析。该研究成果可为滑坡区域既有隧道的维修加固提供一定的理论依据。

Abstract

In mountain region

landslide has a significant influence on the force and deformation of existing tunnels. The existing researches generally separate the landslide and the tunnel to investigate. However

very little attention is paid to the combination of the two kinds of engineering problems. Moreover

most studies remain on the monitoring analysis of practical engineering. It is rare to analyze the landslide-tunnel interaction by theoretical analysis. In this study

firstly

the landslide thrust is deduced based on the transferring coefficient method and the limit equilibrium method. Secondly

imposing the landslide thrust on the existing tunnel

and establishing elastic foundation beam model for the landslide-tunnel interaction

the internal force and displacement of arbitrary tunnel section are solved by the transfer matrix method. In addition

three-dimensional numerical model is established to simulate the landslide-induced tunnel deformation. The numerical results are compared with the theoretical method

and good consistency is obtained. Finally

the influences of the landslide thrust

the foundation coefficients in the sliding and the sliding bed

tunnel lining stiffness and tunnel length are analyzed. The results can provide certain theoretical support for reinforcement and maintenance of existing tunnels in landslide area.

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Related Institution

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