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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2009, Vol. 10 Issue (5): 645-652    DOI: 10.1631/jzus.A0820542
Civil and Mechanical Engineering     
Finite element reliability analysis of slope stability
Xiao-hui TAN, Jian-guo WANG
School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
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Abstract  The method of nonlinear finite element reliability analysis (FERA) of slope stability using the technique of slip surface stress analysis (SSA) is studied. The limit state function that can consider the direction of slip surface is given, and the formulations of FERA based on incremental tangent stiffness method and modified Aitken accelerating algorithm are developed. The limited step length iteration method (LSLIM) is adopted to calculate the reliability index. The nonlinear FERA code using the SSA technique is developed and the main flow chart is illustrated. Numerical examples are used to demonstrate the efficiency and robustness of this method. It is found that the accelerating convergence algorithm proposed in this study proves to be very efficient for it can reduce the iteration number greatly, and LSLIM is also efficient for it can assure the convergence of the iteration of the reliability index.

Key words： Slope stability      Finite element method      Reliability analysis      Limited step length iteration method (LSLIM)      Accelerating convergence     
Received: 17 July 2008     
CLC:  TV4  
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Xiao-hui TAN
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Xiao-hui TAN, Jian-guo WANG. Finite element reliability analysis of slope stability. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(5): 645-652.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820542     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2009/V10/I5/645

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