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地下采煤引起的顺层滑坡是一种常见的矿山地质灾害,论文分析了地下采煤诱发顺层滑坡的机理和采动滑坡的特点,从滑面形态变化的角度分析了地下采煤对顺层岩质边坡稳定性的影响,并运用极限平衡理论给出了采动影响下的顺层岩质边坡稳定性系数的估算公式。分析结果表明,随着逆坡开采的推进滑体稳定性系数不断的减小,当开采到滑体恰好达到充分采动下沉时,稳定性系数最小。通过预测开采对坡体稳定性造成的影响程度,从而为地下采煤的开采方案和边坡防护设计提供理论依据。
Stratified landslide caused by underground coal mining is a common mine geological disasters. The paper analyzed the mechanism of underground coal strata induced landslide and the characteristics of mining landslide. From the perspective of sliding surface morphology, Layer rock slope stability and the application of limit equilibrium theory gives the formula for estimating the stability coefficient of bedding rock slope under the influence of mining. The analysis results show that the stability coefficient of sliding body decreases with the progressive slope mining, and the stability coefficient is minimal when the sliding body is fully mined. By predicting the influence of mining on the stability of slope, it provides a theoretical basis for the mining scheme and slope protection design of underground coal mining.