煤矿开采对地表反向滑坡稳定性影响的模拟

Simulation of the Influence of Coal Mining on Reverse Landslide Stability of Earth’s Surface

摘要: 煤系地层的倾角与上覆滑坡的倾角相同、倾向相反条件下煤层开采对滑坡稳定性具有重要影响。采用相似材料模拟实验方法，模拟含煤岩系倾角30°时的煤矿开采，总结出反向滑坡失稳条件。结果表明：垮落带高度为25.0 m，断裂带高度为72.0 m，工作面推进120 m时滑坡处于临界失稳状态。

Abstract: The coal seam mining is very important to the stability of the landslide when the dip angle of coal measure strata and overying landslide is the same and their inclination is oppsite. Similar material simulation experiment method was adopt to simulate coal mining with coal measures angle of 30°and summarize the instability condition of reverse landslide. The landslide is at critical instability when the caving height of overlying rock is 25.0 m, crack height of overlying strata is 72.0 m and the working face advances 120 m.