胡才源,李小玲.基于ANSYS的浅层顺层岩质滑坡破坏模式分析——以大方县理化乡701滑坡为例[J].贵州地质,2024,(3):339-345
基于ANSYS的浅层顺层岩质滑坡破坏模式分析——以大方县理化乡701滑坡为例
Analysis of the Failure Pattern of Shallow BeddingRock Landslide Based on ANSYS Sofware——Take the 701 Landslide in Lihua Township,Dafang County as an example
投稿时间:2023-11-21  
DOI:
中文关键词:  滑坡  ANSYS  破坏模式  三维地质建模  数值模拟
英文关键词:Landslide  ANSYS  Destroy mode  3D geological modeling  Numerical simulation
基金项目:
作者单位
胡才源 贵州省地质环境监测院贵州贵阳550081 
李小玲 贵州省地质环境监测院贵州贵阳550081 
摘要点击次数: 0
全文下载次数: 0
中文摘要:
      在判断浅层顺层岩质滑坡破坏模式时,往往受滑坡剪出口处人为工程切坡因素影响,对其牵引式或推移式难以确定,甚至判断错误。本文在收集滑坡区背景资料和滑坡地质灾害测绘的基础上,采用Auto-CAD软件,重建大方县理化701滑坡三维地质模型,利用有限元软件ANSYS Workbench的Static Structural模块,分别模拟滑坡发生前的岩土自重条件和1/2饱水条件下的岩土应力应变分布等值线。结果显示,应力集中于滑坡中后部,呈长条状分布,与发生滑坡前后地貌变形情况基本吻合,由此验证了模拟模型的有效性和可行性,判断了斜坡由中后部启动滑移,推移中下部岩土体,沿着灰岩顺层面形成推移式滑坡。本次模拟分析为今后识别类似地质灾害及判断其破坏模式提供参考,有助于指导类似地质灾害的防治。
英文摘要:
      When judging the failure mode of shallow-layer rock landslide,it is often affected by the man-made engineering slope cutting factors at the exit of landslide shear,and it is difficult to determine the traction type or the passing type,and even the judgment is wrongIn this paper,on the basis of collecting background data and mapping landslide geological hazards,it use Auto-CAD software to reconstruct the 701 landslide three-dimensional geological model in Lihua Township,Dafang county,and uses the Static Strategy module of the finite element software ANSYS WorkbenchThe self-weight conditions,the stress and strain distribution isolines of geotechnical soils before landslide were simulated respectivelyThe results show that the stress is concentrated in the middle and rear parts of the landslide,and it is in a long strip distributionIt is basically in line with the deformation of the landform before and after the landslideThis proves the validity and feasibility of the simulation model,and judges that the slope is started from the middle and back partsSliding,moving the middle and lower rock and soil bodies,A gradual landslide is formed along the straight layer of limestoneThis simulation analysis provides reference for identifying similar geological hazards and judging their failure patterns in the future,and is helpful for guiding the prevention and control of similar Geological hazards
查看全文  查看/发表评论  下载PDF阅读器