中文摘要：

针对运河煤矿落差60~265m的F10逆断层下盘厚煤层开采实际,利用FLAC3D数值软件对大断层下盘工作面的回采进行模拟,分析采动后断层及其上盘区域煤层应力分布和覆岩变形特征。研究表明：下盘厚煤层开采后,工作面导水裂隙带范围未波及到F10断层,断层附近岩层下沉变形量较小,断层性质不会受到大的影响;断层上盘区域整体下沉,且向下发生了轻微的＂倾斜＂,导致上盘区域应力分布发生变化;F10断层和DF14断层的影响,使得断层上盘区域构造应力明显,对上盘煤层安全开采有一定影响。

英文摘要：

Based on the actual practice of the thick coal seam mined at footwall of reverse fault with a fall of 60~265min Yunhe coal mine,the FLAC3 Dsoftware was applied to simulate the mining of footwall coal seam and analyze the stress distribution and deformation characteristics of hanging wall.The results showed that after mining the footwall coal seam,the water flowing fractured zone didn＇t extend to F10 fault and the subsidence deformation of overlying strata nearby fault was slight,with little effect on fault performance.The stress distribution of hanging wall changed because of its integral subsidence and slight downward slope.The tectonic stress was obvious at the hanging wall influenced by fault F10 and DF14,which can affect the mining safety of hanging wall coal seam.