Abstract

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。

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