特厚煤层分段综放开采动压机理与规律研究  

Study of dynamic pressure mechanisms and laws of fully mechanized sub-level caving in extremely thick coal seam

作　　者：周英[1] 南华[1] 李化敏[1] 戴永浩[1] 

机构地区：[1]焦作工学院资源与材料工程系

出　　处：《煤炭学报》2004年第4期388-391,共4页Journal of China Coal Society

摘　　要：根据甘肃砚北煤矿矿井动力现象的特征,通过现场实测与资料统计,实验室煤岩力学性质试验及理论分析,得出了砚北煤矿矿井地应力分布的基本规律,并进一步证实砚北煤矿矿井动力现象属冲击地压,其冲击的强弱程度属中等偏弱且具有明显的脆性特征,地应力的大小和方向是影响其动力现象的最根本因素.On the basis of in-situ measurements and data statistics analysis of the dynamic underground phenomena in Yanbei coal mine, located in Gansu Province, and lots of laboratory tests on coal and rock specimens and theoretical analysis of testing results, the author correspondingly concluded the basic distribution laws of ground stress in Yanbei coal mine. Furthermore, it can be proved that the dynamic underground phenomena in Yanbei mine is rock burst in reality, and the impact strength is in middle class, it needs to be pointed out that the orientation and magnitude of the ground stress is a critical factor influencing the dynamic phenomena inYanbei coal mine.

关 键 词：大倾角 放顶煤 地应力 动力现象 

分 类 号：TD823.49[矿业工程—煤矿开采]