摘要
基于大柳塔煤矿12306工作面煤层赋存特征,运用FLAC3D数值模拟软件建立三维地质模型,分析了该工作面不同采空区面积对覆岩的影响。结果表明,在达到充分采动之前,随着采空区面积的增加,地表影响范围逐渐增加,地表最大下沉值也逐渐增加;而导水裂隙带一直发育到地表,对工作面的安全有一定的影响。
Based on the seam deposit features of the Daliuta 12306 working face,3D geological model was established by using the FLAC3D numerical simulation software,and analyzed the different mined- out area on influence of overlying rock in the working face. The results show that the range of influence of the surface and the maximum subsidence of the surface are increase gradually along with mined-out area increasing before reaching full mining;and the development of water flowing fracture zone reaches the surface, which affect the safety of the working face in some extent.
出处
《煤炭技术》
CAS
北大核心
2016年第5期52-54,共3页
Coal Technology
关键词
采空区
导水裂隙带
数值模拟
mined-out area
water flowing fracture zone
numerical simulation
