哈尔滨工程大学学报Issue(5)：666-670,5.DOI:10.3969/j.issn.1006-7043.201403021
边坡稳定分析的颗粒流方法研究
A particle flow method for slope stability analysis
摘要
Abstract
Traditional analysis methods are based on the rigid⁃plastic model, which presuppose the location and shape of the sliding surface. They make judgment on the stability of the soil body through the calculation using the limit equilibrium equation. Thus, the result is largely influenced by the suppositions of the sliding surface location and the soil parameters. Moreover, due to the nature of soil as a kind of granular material, it is contradictory to ana⁃lyze soil with the theory of elastomechanics , which isbased on the continuity hypothesis. In order to solve this prob⁃lem, this paper proposes a new simulation method based on the particle flow theory. It tests the clay biaxial speci⁃men, finds out the effect of microscopic parameters on the macroscopic properties based on Mohr⁃Coulomb failure criterion and suggests a whole process for the testing of clay soil slope deformation under natural gravity. The simu⁃lation presents the natural process of landslides from occurrence, development to slipping of landslides. The result proved the feasibility and superiority of the particle flow modeling method for the research of slope deformation fail⁃ure mechanics.关键词
边坡失稳/颗粒流(PFC)/数值模拟/宏观参数/细观参数Key words
side slope instability/particle flow code (PFC)/numerical simulation/macro-parameter/micro-parameter分类
建筑与水利引用本文复制引用
张小雪,王滨生,迟玉鹏,吕志强..边坡稳定分析的颗粒流方法研究[J].哈尔滨工程大学学报,2015,(5):666-670,5.基金项目
国防基础科研计划基金资助项目（ A1120110007）． （）
