摘要
为了掌握碾沟煤业近距离煤层采空区下2101工作面覆岩运动及矿压显现规律,采用数值模拟和矿压观测的方法对工作面回采过程中覆岩的运动规律和矿压特征进行分析。结果表明:2101工作面回采过程中,来压受到本煤层基本顶的破断结构和上部03号煤层基本顶铰接结构的影响,覆岩无明显的周期来压现象,液压支架能够满足使用要求。
In order to master the movement of overlying strata and the regularity of ground pressure in 2101 working face under the close coal seam goaf in Niangou Coal Industry,numerical simulation and ground pressure observation are used to analyze the movement law and ground pressure characteristics of overlying strata in the process of working face stoping.The results show that the weighting is influenced by the fracture structure of the basic roof of the coal seam and the hinge structure of the basic roof of the No.3 coal seam in the upper part of the coal seam.
作者
黄伟
HUANG Wei(Niangou Mining Company of Yangquan Coal Industry(Group)Co., Ltd.,Qingxu 030400,China)
出处
《煤》
2020年第1期9-11,18,共4页
Coal
关键词
近距离煤层
矿压特征
相似模拟
close coal seam
ground pressure characteristics
similar simulation
