On Analyzing Deformation and Propagation of Intermittent Fractures in the Discrete Blocks Under Seepage Forces

摘要：

Based on traditional Discontinuous Deformation Analysis (DDA) method, a new discrete block model is developed, in which the common moving least-squares (MLS) approximants used in the meshfree method is employed here to approximately describe block displacement field, the aim of this is to investigate deformation and propagation of intermittent fractures in the large blocks, moreover in this model, the influence of seepage forces deriving from pressure and elevation heads are considered. The theoretical contents and numerical cases are provided to verify the proposed model.

关键词： Discontinuous Deformation Analysis (DDA) moving least-squares (MLS) fracture propagation seepage

作者: MA Yongzheng CAI Kejian

作者单位: Institute of civil engineering, NingBo University of Technology, Zhejiang, P.R. China, 315016

会议类型: 国际会议

会议名称: 2010 International Symposium on Multi-field Coupling Theory of Rock and Solid Midia and Its Applications(2010年岩土多场耦合理论及应用国际学术论坛)

会议地点: 成都

会议语种:英文

页码: 706-713

在线出版日期: 2010-10-10（万方平台首次上网日期，不代表论文的发表时间）