地震作用下滑坡动力响应及稳定性模拟分析  

Landslide Dynamic Response and Stability Simulation Analysis under Earthquake Action

作　　者：肖衍 袁宝远[1] 程岩[1] Xiao Yan;Yuan Baoyuan;Cheng Yan(School of Earth Sciences and Engineering,Hohai University,Nanjing,Jiangsu 211100)

机构地区：[1]河海大学地球科学与工程学院,南京211100

出　　处：《中国煤炭地质》2019年第4期62-67,共6页Coal Geology of China

摘　　要：我国中西部是斜坡失稳破坏高密度存在区域,其中滑坡是一种常见的破坏方式,滑坡会给工程建设和人民生活造成巨大的损失,在地震作用下滑坡发生的几率明显增加。以白龙江郭家滑坡为例,在分析工程地质条件的基础上,利用FLAC3D数值分析软件建立数值计算模型,利用模型分析滑坡地震作用下的动力响应,进而分析地震动力作用下滑坡的稳定性,并与基于极限平衡法的静力分析结果进行对比分析,为滑坡的地震灾害预测提供依据,也为今后地震作用下滑坡的稳定性动力分析计算提供借鉴。The midwest part of China is a slope unstable failure high incidence area.While the landslide is a common failure mode and can cause great losses in project construction and people’s living.The probability of landslide will be obviously increased under earthquake action.Taking the Guojia landslide in Bailongjiang drainage area as an example,on the basis of engineering geological condition analysis,using the FLAC3D numerical analysis software has established a numerical model.Through the model has analyzed dynamic response and further analyzed landslide stability under earth dynamic action.On the basis of static analyzed results from limit equilibrium method carried out comparative analysis,provided basis for prediction of landslide hazard under earthquake action.The study can also provide reference for landslide stability dynamic analytical computation under earthquake action hereafter.

关 键 词：滑坡 地震作用 动力计算模型 极限平衡法 

分 类 号：P642.22[天文地球—工程地质学]