浅埋深薄基岩综放工作面超前支承压力分布规律的埋深效应
Mining Safety & Environmental Protection（2016）
Abstract
采用数值模拟的方法,研究了煤层埋藏深度对浅埋深、薄基岩、厚松散层特厚煤层综放开采超前支承压力的影响,研究结果表明:随着煤层埋藏深度的增加,综放工作面超前支承压力峰值大小和峰值距煤壁的距离呈对数增加,而支承压力集中系数呈线性减小.煤层埋藏深度的增加有利于顶煤的破碎,进而间接提高了特厚煤层采用综放开采的采出率.
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