急倾斜特厚煤层水平分层开采矿压特征  

Pressure character in caving steep-inclined and extremely thick coal seam with horizontally grouped top-coal drawing mining method

作　　者：鞠文君[1] 李前[2] 魏东[3] 戴华阳[4] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]甘肃华亭煤电股份有限公司,甘肃平凉744100 [3]天地科技股份有限公司开采所事业部,北京100013 [4]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤炭学报》2006年第5期558-561,共4页Journal of China Coal Society

摘　　要：运用相似材料模拟、数值模拟、现场实测等研究手段,对急倾斜特厚煤层分层开采的矿压特征进行了研究,初步揭示了急倾斜特厚煤层开采顶板岩层移动的复杂性、周期来压的双重性、陷落区的叠加性和动态性、应力场和位移场的不均衡性等特有规律,分析了巷道支护困难、易底臌、动力冲击等矿压现象的原因.Similar material test, numerical simulation and spot observation were used for the pressure character study, and some law were reported, just as the complicity of roof movement, the dualism of periodic press, the developments of fallen area, the asymmetry of stress field and displacement field, and analyzed the cause of roadway support difficulty, floor drum up easily and rock burst, etc.

关 键 词：急倾斜特厚煤层 水平分层开采 矿压显现 岩层移动 

分 类 号：TD823.213[矿业工程—煤矿开采]