›› 2003, Vol. 24 ›› Issue (1): 70-74.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Elastoplastic stochastic finite element analysis of surrounding rock of tunnel and its application to reliability calculation

XU Jun1,2, ZHENG Ying-ren2   

  1. 1. Chengdu Army Union Institute of Architecture Design, Chengdu 610015, China; 2. Logistical Engineering University, Chongqing 400041, China
  • Received:2001-12-24 Online:2003-02-10 Published:2014-08-27

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Abstract: Based on the initial stress method for elastoplastic finite element, analysis an iteration procedure for elastoplastic stochastic finite element analysis is proposed, and a method of reliability assessment for stability of surrounding rock is suggested based on the theory of structural reliability. The mean value and standard deviation of shotcrete’s stresses can be obtained. Corresponding computer program for elastoplastic stochastic finite element analysis and for reliability calculation of the safety of tunnel is developed .Two illustrative examples are presented; the first numerical example is examined to show that the proposed method yields accurate results compared with the direct difference results; the second example is for the stability analysis of tunnel; some useful conclusions are also obtained.

Key words: surrounding rockmass, bolt-shotcrete support, elastoplastic stochastic finite element, reliability

CLC Number: 

  • TU 451
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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