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露天煤矿顺层边坡易形成大规模变形体(或大型滑坡),防治难度大,是矿山安全高效生产的重大隐患。通过系统研究近期呈现的露天煤矿层状岩体顺层边坡失稳实例,分析了不同条件下该类边坡滑坡类型及失稳模式,采用数值模拟、变形监控数据反演分析相结合的方法分析了其变形失稳机理,并提出了这类结构的露天煤矿边坡稳定控制开采技术措施建议。实践表明,该控制开采技术具有较好的实施效果。
It is easy to control large-scale deformation body (or large-scale landslide) in the cascade slope of opencast coal mine, which is a serious hidden danger of safe and efficient mine production. By systematically studying the instability of bedding rock slope in opencast coal mine in recent years, the landslide type and instability mode under different conditions are analyzed. By combining numerical simulation and deformation monitoring data inversion analysis, The mechanism of deformation and instability is analyzed, and the suggestion of technical measures for slope stability control mining of such open pit coal mine is put forward. Practice shows that the control of mining technology has good implementation results.