基于FLAC 3D的云南省沙坝村滑坡稳定性分析  

Stability analysis of landslide based on FLAC 3D in Shaba Village,Yunnan Province

作　　者：蒋韬 刘岁海[1] 王知雄 韩民赛 JIANG Tao;LIU Suihai;WANG Zhixiong;HAN Minsai(School of Environment and Resources,Southwest University of Science and Technology,Mianyang 621000,China;Sichuan Yekan Design Group Co.,Ltd.,Chengdu 610000,China)

机构地区：[1]西南科技大学环境与资源学院,四川绵阳621000 [2]四川省冶勘设计集团有限公司,四川成都610000

出　　处：《水利水电快报》2024年第7期35-40,共6页Express Water Resources & Hydropower Information

摘　　要：为了分析云南省丘北县沙坝村滑坡稳定性,基于FLAC 3D软件数值模拟方法,通过Rhino 6软件与Griddle 2.0插件建立了滑坡稳定性分析模型,通过模拟天然工况与暴雨工况条件下滑坡位移与内部应力状态,计算该滑坡的安全系数。结果表明:该滑坡在天然工况下安全系数为1.426,处于稳定状态;暴雨工况下,该滑坡安全系数为1.020,处于失稳边缘,滑坡后部剪应变增量集中,可能产生裂缝。研究成果可为制定针对性的滑坡防治措施提供参考。In order to analyze the stability of the landslide in Shaba Village,Qiubei County,Yunnan Province,based on the FLAC 3D numerical simulation method,the landslide stability analysis model was established by Rhino 6 software and Griddle 2.0 plug-in,and the safety factor of the landslide was calculated by simulating the landslide displacement and internal stress state under natural and rainstorm conditions.The results showed that the safety factor of the landslide was 1.426 under natural conditions,which was in stable state,and under rainstorm condition,the safety factor of the landslide was 1.020,which was at the edge of instability.The shear strain increment at the rear of the landslide was concentrated,which may cause cracks.The research results can provide a reference for the formulation of targeted landslide prevention and control measures.

关 键 词：滑坡 FLAC 3D 数值模拟 稳定性分析 安全系数 云南省 

分 类 号：P642.22[天文地球—工程地质学]