顶板岩性对工作面矿压显现规律的影响  

Effects Study on Roof Changes of Working Face on Strata Pressure Distribution

作　　者：贾军龙 JIA Jun-long(Jingxin Mining Company,Yangtai Group,Yangcheng 048100,China)

机构地区：[1]山西阳泰集团晶鑫煤业公司,山西阳城048100

出　　处：《煤》2018年第6期20-21,56,共3页Coal

摘　　要：顶板岩性对工作面矿压显现规律有着显著的影响。根据武甲煤矿3206工作面实际情况,利用理论分析和矿压观察数据,分析了在不同顶板条件下矿压显现规律的变化,结果表明:直接顶厚度越大,非来压阶段支架阻力越大,来压时支架阻力变化越缓和;基本顶的厚度和强度决定工作面周期来压步距,厚度越大,强度越高,周期来压步距也就越长。The different of roof conditions has a significant influence on the mine pressure behavior of working face. According to the actual situation of a mine 3206 working face,using theoretical analysis and the mine pressure observation data,studies the law of mine pressure appear in different roof conditions change,get the conclusion that the larger the thickness of immediate roof,the support resistance,the greater the phase change of support resistance when the more moderate; The thickness and strength of the basic roof determine the periodic weighting length. The larger the thickness,the higher the intensity,and the longer the periodic weighting length is.

关 键 词：顶板岩性 工作面 矿压观测 矿压显现规律 

分 类 号：TD323[矿业工程—矿井建设]