| 用有限元极限平衡法分析边坡的稳定性 |
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| 引用本文： | 王连捷 周春景 吴珍汉 廖怀军 孙东生 王,薇.用有限元极限平衡法分析边坡的稳定性[J].中国地质,2008,35(5):1031-1036. |
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| 作者姓名： | 王连捷 周春景 吴珍汉 廖怀军 孙东生 王 薇 |
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| 作者单位： | 1. 中国地质科学院地质力学研究所,北京,100081
2. 重庆136地质队基础工程勘察设计院,重庆,401147 |
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| 基金项目： | 中国地质调查局地质调查项目 |
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| 摘 要： | 用有限元分析为基础的极限平衡法计算了边坡安全系数,并将结果与摩尔-库仑屈服准则、外接圆D-P屈服准则强度折减法得到的结果、以及Spencer（极限平衡）法的结果进行了比较,结果表明,有限元极限平衡法计算的边坡安全系数与摩尔-库仑屈服准则强度折减法和Spencer法的结果很一致,而D-P准则强度折减法得到的结果偏差较大。叙述了存在已知滑动面和不存在滑动面时有限元极限平衡法的计算方法。用大型通用有限元软件,如ANSYS等,可方便地进行这种方法的边坡安全系数的计算,并有足够的精度。
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| 关 键 词： | 边坡安全系数 强度折减法 极限平衡 有限元 |
Slope stability analysis by the limit equilibrium method based on the finite element method |
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| WANG Lian-jie,ZHOU Chun-jing,WU Zhen-han,LIAO Huai-jun,SUN Dong-sheng,WANG Wei.Slope stability analysis by the limit equilibrium method based on the finite element method[J].Chinese Geology,2008,35(5):1031-1036. |
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| Authors: | WANG Lian-jie ZHOU Chun-jing WU Zhen-han LIAO Huai-jun SUN Dong-sheng WANG Wei |
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| Institution: | 1. Institute of Geomechanics;Chinese Academy of Geological Sciences;Beijing 100081;China;2. Chongqing Institute of Engineering Exploration and Design;Chongqing 401147;China |
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| Abstract: | The safety factor of slope is calculated by using the limit equilibrium method based on the finite element analysis (LEMFEA). The results are compared with the results of the strength reduction of the Mohr-Coulomb criterion and circumscribed circle D-P criterion and results of the Spencer method. The comparison shows that the safety factor calculated by LEMFEA is in good agreement with those calculated by the strength reduction of the Mohr-Coulomb criterion Spencer method but is significantly deviated from ... |
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| Keywords: | slope safety factor strength reduction limit equilibrium finite element |
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