| Analysis on Influence of Fault Location and Strength on Deformation and Stress Distribution of Surrounding Rocks of Large Underground Openings |
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| 引用本文： | HUANG Da,HUNAG Run qiu and ZHANG Yong xing.Analysis on Influence of Fault Location and Strength on Deformation and Stress Distribution of Surrounding Rocks of Large Underground Openings[J].保鲜与加工,2009(2):68-73. |
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| 作者姓名： | HUANG Da HUNAG Run qiu and ZHANG Yong xing |
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| 作者单位： | College of Civil Engineering; Chongqing University; Chongqing 400045, P. R. China;;State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, P. R. China;College of Civil Engineering; Chongqing University; Chongqing 400045, P. R. China; |
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| 摘 要： | The stability of rock mass project is mainly controlled by the rock mass structure, and faults are the large geological discontinuity plane commonly encountered in rock mass engineering. The stability of surrounding rocks is restricted by mechanical property and location to underground cavern of faults, the detailed studies carried out by analysis of numerical calculation and construction monitoring datum of underground powerhouse of Three Gorges Project show: the distribution of stress and deformation of surrounding rock masses containing a fault are badly deteriorated, the distribution of stress and deformation are obviously different under different natural stress field and position of fault; The influence of friction strength of fault on deformation of surrounding rocks is more obvious when a fault is located near the crown, but the cohesion is more when wall nearby, and the influence is more distinct with side pressure coefficient increases.
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| 关 键 词： | underground openings fault location fault strength deformation stress distribution |
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