| Quasi-Monte Carlo Simulation-Based SFEM for Slope Reliability Analysis |
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| 作者姓名： | 于玉贞 谢立全 张丙印 |
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| 作者单位： | DepartmentofHydraulicEngineering,TsinghuaUniversity,Beijing100084,China |
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| 基金项目： | The“985”ProjectofTsinghuaUniversity(No.JC2002007). |
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| 摘 要： | Considering the stochastic spatial variation of geotechnical parameters over the slope, a Stochastic Finite Element Method (SFEM) is established based on the combination of the Shear Strength Reduction (SSR) concept and quasi-Monte Carlo simulation. The shear strength reduction FEM is superior to the slice method based on the limit equilibrium theory in many ways, so it will be more powerful to assess the reliability of global slope stability when combined with probability theory. To illustrate the performance of the proposed method, it is applied to an example of simple slope. The results of simulation show that the proposed method is effective to perform the reliability analysis of global slope stability without presupposing a potential slip surface.
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| 关 键 词： | 切变强度 拟蒙特卡罗法 随机有限元 倾斜稳定性 |
Quasi-Monte Carlo Simulation-Based SFEM for Slope Reliability Analysis |
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| Yu Yuzhen,Xie Liquan,Zhang Bingyin.Quasi-Monte Carlo Simulation-Based SFEM for Slope Reliability Analysis[J].Journal of Southwest Jiaotong University,2005,13(1):56-61. |
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| Authors: | Yu Yuzhen Xie Liquan Zhang Bingyin |
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| Abstract: | Considering the stochastic spatial variation of geotechnical parameters over the slope, a Stochastic Finite Element Method (SFEM) is established based on the combination of the Shear Strength Reduction (SSR) concept and quasi-Monte Carlo simulation. The shear strength reduction FEM is superior to the slice method based on the limit equilibrium theory in many ways, so it will be more powerful to assess the reliability of global slope stability when combined with probability theory. To illustrate the performance of the proposed method, it is applied to an example of simple slope. The results of simulation show that the proposed method is effective to perform the reliability analysis of global slope stability without presupposing a potential slip surface. |
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| Keywords: | Geotechnical properties Shear strength reduction Quasi-Monte Carlo simulation Stochastic finite element method Global slope stability |
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