羊东矿8463工作面采空区上覆岩层裂隙发育带的确定  

Fractured Zone Determination of Goaf Overlying Rock in Yangdong Coal Mine 8463 Working Face

作　　者：朱红青[1] 张民波[1] 潘凤龙[1] 王文海[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤矿安全》2013年第8期207-209,共3页Safety in Coal Mines

摘　　要：基于煤层采动矿山压力与围岩发展理论,采用理论计算与数值模拟相结合的方法分析预测羊东矿8463工作面采空区上覆岩层发展规律,确定其主要裂隙发育带的区域,并通过现场钻孔瓦斯抽采量的考察,验证其合理性。结果表明:裂隙发育带范围为10～23 m,且在此区域单个钻孔瓦斯抽采纯量为0.6～0.8 m3/min,高于其它区域的瓦斯抽采量。Based on the theory of coal seam mining pressure and surrounding rock development,the paper uses the methods of theoretical calculations and numerical simulations to analyze and forecast the development of goaf overlying rock in 8463 face of Yangdong Coal Mine,and determines the main fractured zones,then verifies its rationality through investigating gas extraction amount of field drilling.The results show that the fractured zones range is 10 ～ 23 m,and one single borehole＇s gas extraction amount is 0.6 ～ 0.8 m3/ min in this area,which is higher than other regions of the gas drainage amount.

关 键 词：上覆岩层 裂隙发育带 理论计算 数值模拟 钻孔考察 

分 类 号：TD712[矿业工程—矿井通风与安全]