• 责任者：Zhang Fangzhi (College of Science and Engineering ; Jinan University ; Guangzhou 510632 ; China) ; Chen Xiaoping
• 刊名：Journal of Engineering Geology
• 出版年：2011
• 卷期：19（2）
• 关键词：边坡稳定性 ; slope stability ; 强度折减法 ; strength reduction methods ; 有限元法 ; finite element methods ; 堤坝 ; embankments
• 页码：p.244-249
• 图表：10 illus., 1 table, 9 refs.
• 分类号：1702
• 出版序号：20120564
• issnNo：ISSN1004-9665
• isbnNo：CN11-3249/P

The characteristics of the development of plastic strain and the process of unstable failure for embankment of heterogeneous soils are studied with the strength reduction FEM. The unstable mechanism for embankment is analyzed according to the stress field of unstable state and formation of the critical slip surfaces. The results indicate that the strength reduction FEM is applied to stability analysis of embankments of heterogeneous soils in the theory and numeric simulation. Furthermore, the numerical non-convergence of FEM global equilibrium and displacement can be taken as a failure criterion of embankment slope.