A Continuum-based Discrete Element Method of Random Block Shape for Analyzing Stability of Cataclastic Rock Mass Slope

摘要：

A Continuum-based Discrete Element Method (CDEM) of random block shape is developed according to the distributing character of the joint face of the cataclastic rock mass slope.Basically anomalistic polyhedron including concave polyhedron block model is created, and then the method is applied to analyze the slope stability. At first, the stability of the cataclastic rock mass slope is evaluated according to two main factors: a) the convergence of simulant energy to zero and b) propagation of some cracks through the slope. More over, the critical strength curve of slope stability can be depicted in this step. Next, the different damage forms of cataclastic rock mass slope, with different joint occurrence under gravity, are simulated. At the end the fracture and stability loss of the slope, under both gravity and seismic action will be analyzed.

关键词： cataclastic rock mass slope stability CDEM random discretional polyhedron energy displacement

作者: Liu Tianping Li Shihai Liu Xiaoyu Cheng Kai

作者单位: Institute of Mechanics,Chinese Academy Sciences,Beijing,100080,China School of Mechanics & Engineering China University of Mining & Technology,Beijing,100083,China

会议类型: 国际会议

会议名称: 国际离散元及非连续介质力学数值模拟研讨会(北京离散元08)(International Symposium RCUK-China Summer School on Discrete Element Methods and Numerical Modelling of Discontinuum Mechanics)(Beijing DEM08)

会议地点: 北京

会议语种:英文

页码: 341-354

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）