不同采高下深埋厚煤层综放采场的数值模拟研究  

Numerical Simulation Study of Fully Mechanized Top Coal Caving Stope of Deep-thick Coal Seam under Different Mining Height

作　　者：郭伟耀[1] 陈文国[1] 胡善超[1] 徐宁辉 周恒 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]国投哈密能源开发有限责任公司,新疆哈密839000

出　　处：《煤炭技术》2015年第5期15-17,共3页Coal Technology

摘　　要：为了研究不同采高对采场顶煤与顶板运动规律的影响,采用UDEC数值模拟软件,研究了不同机采高度条件下,煤岩体中超前支承压力、剪切应力和塑性区的分布规律。结果表明:随着采高增大,顶煤和机采煤中超前支承压力峰值位置均向煤层深部转移,剪切应力集中分布区域和煤壁上方顶煤中的最大剪切应力也均会增大。In order to study the influence of different mining height on the top-coal and roof motion of the scope,using the UDEC numerical simulation software to study the distribution rule of abutment pressure,shear stress and plastic zone in the coal or rock under different mining height.The results show: with the increase of mining height,the position of peak abutment pressure shifts to the deep coal seam in the top-coal and machine-coal,both the area of shear stress concentration and the maximum shear stress in the top-coal increase;.

关 键 词：综采放顶煤 采高 支承压力 剪切应力 塑性区 

分 类 号：TD325[矿业工程—矿井建设] TD823.253