摘要
露采边坡稳定性分析是矿山地质环境恢复治理工程设计的重要依据。采用定性分析与定量评价相结合的方法,首先利用极射赤平投影法对边坡结构和潜在破坏方式进行了定性分析判断,基于分析结果选择Midas GTS/NX软件构建了边坡失稳前典型剖面的二维模型,并将分析计算结果与实际情况进行了对比,定性判断了模型的可靠性,在此基础上建立了现状剖面模型,根据模拟结果对边坡现状稳定性进行了分析评价。结果表明,正常工况下边坡整体处于稳定或基本稳定状态,局部处于欠稳定状态,暴雨工况下处于不稳定状态,最大应变集中分布于坡脚处。最后,根据应变分布划分了重点防治区,并给出了防治工程设计建议。
The surface mining slope stability analysis is an important basis for mine geological environmental rehabilitation project design.Using qualitative analysis and quantitative assessment combination,firstly through polar stereographic projection has carried out qualitative analysis and estimation for slope structure and potential failure mode,based on analyzed result selected Midas GTS/NX software established 2D model typical section before slope unstable.Taking the analysis and estimation results compared with real situation,qualitatively estimated model reliability,on this basis established status sectional model,and according to simulated result has carried out analytical assessment for slope stability status.The result has shown that under the normal operating mode,slope is under stable or basically stable status as a whole,locally in understable status;under rainstorm operating mode is under unstable status;maximum strain is centralized distribution in slope toe.Finally,according to strain distributions have designated key control areas,and control project design proposals.
作者
范志宏
王旭
胡友邦
朱烨
Fan Zhihong;Wang Xu;Hu Youbang;Zhu Ye(Hubei Geological Exploration Institute,China Chemical Geology and Mine Bureau,Wuhan,Hubei 430074;College of Life Science and Technology,Hubei Engineering University,Xiaogan,Hubei 432100)
出处
《中国煤炭地质》
2022年第2期76-80,共5页
Coal Geology of China
基金
湖北省地勘基金项目“基于Midas GTS/NX的矿山露采边坡稳定性分析”。
