| 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701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701滑坡为例 |
| Analysis of the Failure Pattern of Shallow BeddingRock Landslide Based on ANSYS Sofware——Take the 701 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: |
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| 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701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 wrongIn this paper，on the basis of collecting background data and mapping landslide geological hazards，it use Auto-CAD software to reconstruct the 701 landslide three-dimensional geological model in Lihua Township，Dafang county，and uses the Static Strategy module of the finite element software ANSYS WorkbenchThe self-weight conditions，the stress and strain distribution isolines of geotechnical soils before landslide were simulated respectivelyThe results show that the stress is concentrated in the middle and rear parts of the landslide，and it is in a long strip distributionIt is basically in line with the deformation of the landform before and after the landslideThis proves the validity and feasibility of the simulation model，and judges that the slope is started from the middle and back partsSliding，moving the middle and lower rock and soil bodies，A gradual landslide is formed along the straight layer of limestoneThis 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 |
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