Discrete Element Analysis of a Large-Scale Complex Slope in Debris Deposit

详细信息   

• 责任者：Cui Wei (State Key Laboratory of Hydraulic Engineering Simulation and Safety ; Tianjin University ; Tianjin 300072 ; China) ; Liu Xuekun
• 刊名：Journal of Engineering Geology
• 出版年：2012
• 卷期：20(2)
• 关键词：边坡稳定性 ; slope stability
• 页码：p.222-227
• 图表：3 illus., 2 tables, 12 refs.
• 分类号：1702
• issnNo：ISSN1004-9665
• isbnNo：CN11-3249/P

摘要

 
    
    

Compared
    to general high slopes, there is an obvious difference in the material
    composition, boundary condition and mechanical character for deposit slopes.
    The discrete element method（DEM）can provide an optimum solution
    to problems such as deformation and failure of discontinuity. Firstly, based on
    a large-scale complex slope in debris deposit, a numerical test is carried to
    simulate triaxial test of deposit soil. Micromechanics parameters are
    determined through comparison to the laboratory test results. A general study
    on its failure mechanics was carried out using DEM. Failure mode and
    deformation process were also involved. The results show： the slope before excavation is stability.
    There are two potential slides mass on the upside of slope after first step of
    excavation showing deep sliding along bedrock underlying debris deposit.