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.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2006年第5期558-561,共4页
Journal of China Coal Society
关键词
急倾斜特厚煤层
水平分层开采
矿压显现
岩层移动
steep-inclined and extremely thick coal seam
horizontally grouped top-coal drawing mining method
pressure emerge
roof movement
