| 基于ABAQUS的边坡失稳综合判据法 |
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| 引用本文： | 蔡路军,马建军,周大华,刘松,潘欣. 基于ABAQUS的边坡失稳综合判据法[J]. 武汉科技大学学报(自然科学版), 2011, 0(5) |
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| 作者姓名： | 蔡路军 马建军 周大华 刘松 潘欣 |
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| 作者单位： | 武汉科技大学冶金工业过程系统科学湖北省重点实验室;湖北省十堰至白河高速公路建设指挥部; |
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| 基金项目： | 湖北省教育厅科研资助项目(080085) |
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| 摘 要： | 在分析有限元计算不收敛、坡体位移突变和潜在滑移面塑性区贯通这3种边坡失稳判据优缺点的基础上,提出边坡失稳的综合判据法,即先进行小变形有限元计算,以计算不收敛为边坡失稳判据,后进行大变形有限元计算,以位移突变为判据。采用综合判据法、运用ABAQUS有限元软件对一个标准算例和一个工程实例进行边坡稳定性分析,并与常用的简化Bishop法进行比较,二者所得安全系数接近,证明了边坡失稳综合判据法的合理可行。
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| 关 键 词： | 边坡稳定 强度折减法 失稳判据 ABAQUS软件 |
Comprehensive criterion for the slope failure in strength reduction FEM based on ABAQUS |
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| Cai Lujun,Ma Jianjun,Zhou Dahua,Liu Song,Pan Xin. Comprehensive criterion for the slope failure in strength reduction FEM based on ABAQUS[J]. Journal of Wuhan University of Science and Technology(Natural Science Edition), 2011, 0(5) |
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| Authors: | Cai Lujun Ma Jianjun Zhou Dahua Liu Song Pan Xin |
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| Affiliation: | Cai Lujun1,Ma Jianjun1,Zhou Dahua2,Liu Song2,Pan Xin2 (1.Hubei Province Key Laboratory of Systems Science in Metallurgical Process,Wuhan University of Science and Technology,Wuhan 430065,China,2.Shiyan-Baibe Expressway Construction Administration,Shiyan 442000,China) |
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| Abstract: | The key to analyzing slope stability using FEM strength reduction method is to determine whether the slope reaches its limitation.Presently,there are mainly three criteria of unstable slopes: the non convergence of FEM calculation,the abruptness of slope displacement and the connectivity of plastic zone on potential slip surface.Based on the analysis of the advantages and disadvantages of the three methods,a comprehensive criterion is suggested for slope stability: the small deformation FEM with the criteri... |
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| Keywords: | slope stability strength reduction FEM slope failure criterion ABAQUS |
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