大断层下盘采动对上盘煤层影响的相似材料模拟

针对运河煤矿落差60~265 m的F₁₀逆断层下盘厚煤层开采实际，采用相似材料模拟方法，研究了大断层下盘采动对上盘煤层的影响。研究结果表明：下盘厚煤层开采后，F₁₀断层附近压力增大且应力分布受到较大影响，断层下盘压力远大于上盘压力，在断层附近产生应力集中；工作面开采对断层上盘煤层的变形和应力影响较小，煤岩性质不会发生大的变化，对上盘煤层开采影响不大；距离采动区域较远的DF₁₄断层区域也受到工作面开采轻微影响。

Study on Effect of Large Fault Footwall Mining on Hanging Wall Coal Seam with Similar Material Simulation

Based on the actual practice of the thick coal seam mined at footwall of reverse fault (60~265 meters) in Yunhe coal mine，the effect of the large-fault footwall mining on hanging wall coal seam was simulated with similar material.The results show that the pressure increases nearby F₁₀ fault and the stress distribution changes obviously after the footwall coal seam was mined.The pressure at footwall is much greater than that on hanging wall and stress concentration appears nearby the fault.The working face has less impact on the deformation and stress distribution of hanging wall coal seam，so the coal property keeps constantly and it has little influence on the hanging wall coal seam.Furthermore，the area near DF₁₄ where is far away from the mining area is also influenced slightly.