摘要
针对运河煤矿落差60～265m的F-10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，F-10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DF-14断层区域也受到工作面开采轻微影响。
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 materi- al. 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 near- by 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.
出处
《金属矿山》
CAS
北大核心
2014年第1期34-37,共4页
Metal Mine
基金
国家自然科学基金项目(编号:51104094)
山东省青少年教育科学规划课题大学生学术课题(编号:13CZR036)
关键词
大落差断层
下盘开采
采动影响
相似材料模拟
Large fault, Footwall mining, Mining effect, Similar material simulation
