Runout analysis of landslides using material point method

International Symposium on Geohazards and Geomechanics 2015

地球科学;生态环境科学

Sun, Y.^1 ; Yang, J.^1 ; Song, E.^1

Department of Civil Engineering, Tsinghua University, Beijing

100084, China^1

关键词: Failure surface;    Flow intensity;    Landslide analysis;    Long run outs;    Material point methods;    Numerical results;    Sichuan province;    Solution procedure;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/26/1/012014/pdf
DOI  :  10.1088/1755-1315/26/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Dynamic simulation of runout landslides is essential for assessment, prevention and mitigation of landslide-induced disasters, but difficult for traditional numerical methods. This paper use the material point method (MPM) to simulate the long runout landslides. The basic theories and the solution procedure of MPM are presented first. Then a landside experiment with the soil modelled by aluminium bars is simulated to validate this method for landslide analysis. The numerical results of the final configuration and the failure surface of the landslide agree well with the experiment results. Finally, the landslide of Erman Mountain in China Sichuan province is simulated. The velocities, affected areas, flow intensity and impact forces on structures are investigated.