Failure mechanism and stability analysis of the Zhenggang landslide in Yunnan Province of China using 3D particle flow code simulation

作     者：SHI Chong LI De-jie CHEN Kal-hua ZHOU Jia-wen 

作者机构：Key Laboratory of Ministry of Education for Geomechanics and Embankment EngineeringHohai UniversityNanjing 210098China Institute ofCeotechnical ResearchHohai UniversityNanjing 210098China State Key Laboratory of Hydraulics and Mountain River Engineering$iehuan UniversityChengdu 610065China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2016年第13卷第5期

页      面：891-905页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：The National Natural Science Foundation of China(Grants Nos.51309089,41472272 and 11202063) the National Key Technology R&D Program(Grant No.2013BAB06B00) the Natural Science Foundation of Jiangsu Province(Grant No.BK20130846) the Fundamental Research Funds for the Central Universities(Grant No.2015B06014)supported this work 

主　　题：Back analysis Deposit avalanche Dynamic process Landslide Particle flow code 

摘      要：Based on the principle of 3D particle flow code,a numerical landslide run-out model is presented to simulate the failure process of the Zhenggang landslide(in southwestern China) under the effect of water after a *** relationship between the micro-mechanical parameters and the macro-shear strength of the grain material is determined through numerical *** the rainfall effect is considered in numerical simulations and rain-induced sliding processes are performed,which help us to discuss the mechanism of deformation and failure of this landslide together with field *** shows the Zhenggang landslide would most likely be activated in Zone I and would gain momentum in Zone *** order to prevent the potential disaster,a tailing dam is advised to be designed about 175 m downstream from the current landslide boundary of Zone *** by field observations,the presented landslide model can reflect the failure mechanism after *** can also provide a method to predict the potential disaster and draft disaster prevention measures.