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力学与实践 ›› 2011, Vol. 33 ›› Issue (1): 43-47.doi: 10.6052/1000-0879-lxysj2010-134

• 应用研究 • 上一篇    下一篇

浅埋隧道围岩受施工扰动的时空变化规律研究

文吉英1,孙歆硕2   

  1. 1.
    2. 国家知识产权局专利审查协作中心,北京,100190
  • 收稿日期:2010-03-31 修回日期:2010-08-16 出版日期:2011-02-15 发布日期:2011-03-03
  • 通讯作者: 孙歆硕 E-mail:sunxinshuo@sohu.com

THE TEMPORAL AND SPATIAL VARIATION OF SURROUNDING ROCK UNDER CONSTRUCTION OF SHALLOW TUNNEL

1,   

  • Received:2010-03-31 Revised:2010-08-16 Online:2011-02-15 Published:2011-03-03

摘要: 采用监测分析和数值模拟相结合的方法, 详细模拟了浅埋隧道施工的全过程, 得到不同施工情况下围岩的应力应变状态, 并深入分析围岩受施工扰动的应力变化规律和沉降变形趋势, 在此基础上, 采用非线性回归方法并考虑时间影响因素, 得到了地表沉降的时空变形规律.

关键词:

地下隧道,浅埋暗挖法,数值模拟,非线性回归,地表沉降

Abstract: In order to reduce the negative impact of the environment due to shallow tunnel construction, the ground movement and deformation are estimated through simulating the entire process of the shallow tunnel construction, and the surrounding rock stress and strain in different situations are obtained. On this basis, the non-linear regression method for consideration of time factors is used to obtain the space-time deformation law of ground surface. This work provides a new way of estimating the effect of shallow tunnel construction on ground surface.

Key words:

Underground Tunnel, Mining Method for Shallow Tunnel, numerical simulation, nonlinear regression, Ground Subsidence