郭釜炎, 卢长伟, 王常明. 2021: 基于FLAC3D的废弃矿山边坡重塑设计稳定性研究. 工程地质学报, 29(S1): 344-351. DOI: 10.13544/j.cnki.jeg.2021-0364
    引用本文: 郭釜炎, 卢长伟, 王常明. 2021: 基于FLAC3D的废弃矿山边坡重塑设计稳定性研究. 工程地质学报, 29(S1): 344-351. DOI: 10.13544/j.cnki.jeg.2021-0364
    GUO Fuyan, LU Changwei, WANG Changming. 2021: STUDY ON REMOLDING DESIGN STABILITY OF ABANDONED MINE SLOPE BASED ON FLAC3D. JOURNAL OF ENGINEERING GEOLOGY, 29(S1): 344-351. DOI: 10.13544/j.cnki.jeg.2021-0364
    Citation: GUO Fuyan, LU Changwei, WANG Changming. 2021: STUDY ON REMOLDING DESIGN STABILITY OF ABANDONED MINE SLOPE BASED ON FLAC3D. JOURNAL OF ENGINEERING GEOLOGY, 29(S1): 344-351. DOI: 10.13544/j.cnki.jeg.2021-0364

    基于FLAC3D的废弃矿山边坡重塑设计稳定性研究

    STUDY ON REMOLDING DESIGN STABILITY OF ABANDONED MINE SLOPE BASED ON FLAC3D

    • 摘要: 吉林省梨树县境内遗留的废弃采石矿山造成了大面积的土地损毁和植被破坏,历史采挖过程中形成的高陡边坡对当地群众的安全产生了隐患。针对这种情况,为有效恢复矿山生态环境、消除地质灾害隐患、发展特色旅游项目,本文提出了该废弃矿山边坡重塑方案,根据整体规划要求,对已有矿山边坡进行边坡重塑处理以消除地质灾害隐患,同时在矿坑及平台种植乔木进行乔灌草结合以恢复边坡生态,最后采用有限差分法对矿山边坡在现状条件和重塑后的稳定性进行了计算分析,结果表明:(1)现状条件下高陡边坡受卸荷、风化作用的影响,岩体裂隙逐渐加大,特别是坡顶岩体卸荷作用逐渐加强,现状边坡局部受节理切割容易出现掉块现象;(2)重塑改造增强了矿山边坡的稳定性并且满足规范要求。研究结果为该废弃矿山边坡的重塑设计提供了参考。

       

      Abstract: The abandoned quarrying mines in Lishu County, Jilin Province have caused a large area of land damage and vegetation damage, and the high and steep slopes formed in the historical mining process have produced hidden dangers to the safety of local people. In view of this situation, in order to effectively restore the ecological environment of the mine, eliminate the hidden danger of geological disasters and develop characteristic tourism projects, this paper puts forward the remolding scheme of the abandoned mine slope. According to the overall planning requirements, the existing mine slope is remade to eliminate potential geological disasters, and at the same time, trees are planted in the pit and the platform to restore the slope ecology. Finally, the finite difference method is used to calculate and analyze the stability of the mine slope under the current conditions and after remolding. The results show that:1) Under the current condition, the high and steep slope is affected by unloading and weathering, and the rock mass cracks gradually increase, especially the unloading effect of the top rock mass gradually strengthens, and the local joint cutting of the current slope is easy to appear the phenomenon of block loss; 2) The remolding enhances the stability of the mine slope and meets the specification requirements. The research results provide a reference for the remolding design of the abandoned mine slope.

       

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