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| 基于有限元强度折减法分析土坡稳定 | |
| 引用本文： | 李萍,付强,陈小念.基于有限元强度折减法分析土坡稳定[J].甘肃科学学报,2007,19(4):63-66. |
| 作者姓名： | 李萍 付强 陈小念 |
| 作者单位： | 1. 兰州理工大学,土木工程学院,甘肃,兰州,730050 2. 甘肃省建筑设计研究院,甘肃,兰州,730030 3. 苏州工业园区职业技术学院,建筑工程系,江苏,苏州,215021 |
| 基金项目： | 兰州理工大学校科研和教改项目 |
| 摘 要： | 对有限元强度折减法进行了总结,并将其与ANSYS有限元程序很好的结合,通过算例,验证了这种方法在ANSYS分析土坡稳定问题时的可行性,结果表明:通过平面应变Mohr-Coulomb匹配的D-P准则与Drucker-Prager屈服准则的转化,可以求得更加符合实际的边坡稳定系数,并可以模拟出边坡的渐进破坏过程. |
| 关 键 词： | 有限元强度折减法 ANSYS 折减系数 屈服准则 |
| 文章编号： | 1004-0366（2007）04-0063-04 |
| 收稿时间： | 2007-01-25 |
| 修稿时间： | 2007年1月25日 |
The Slope Analysis Based on Strength Reduction Finite Element Method |
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| LI Ping,FU Qiang,CHEN Xiao-nian.The Slope Analysis Based on Strength Reduction Finite Element Method[J].Journal of Gansu Sciences,2007,19(4):63-66. | |
| Authors: | LI Ping FU Qiang CHEN Xiao-nian |
| Institution: | 1. College of Civil Engineering ,Lanzhou University of Science and Technology,Lanzhou 730050,China; 2. Gansu Academy of Architectural Design , Lanzhou 730030 ,China ; 3. Department of Architectural Engineering, Institute of Vocational Technology ,Suzhou Industrial park, Suzhou 215021, China |
| Abstract: | On the basis of former study, this paper summarizes strength reduction FEM, and combines perfectly with ANSYS program. This method of feasibility is verified in ANSYS analysis of the slope stability problem through an example. The results show that the through transformation of Drucker-Prager yield criterion and D-P criterion matching plane strain Mohr-Coulomb, a more actual safety factor can be obtained and it can simulate progressive failure process of the slope. |
| Keywords: | strength reduction finite element method ANSYS strength reduction coefficient yield criteria |
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