摘要
放顶煤开采煤炭回收率的高低是关系到能否推广这种采煤方法的关键技术。该文从上覆岩层运动的角度出发,阐述了顶煤的变形规律,进而运用散体相似模拟试验研究了不同顶煤和直接顶块度对顶煤放出率的影响。
This paper described roof coal distortion rules,and massed loose substance simulation test with caving agglomeration of different coal roof and different immediate roof influenced on coal caving ratio based on strata movement.Coal caving ratio is a key factor for coal caving selection.
出处
《山东煤炭科技》
2011年第2期162-163,共2页
Shandong Coal Science and Technology
关键词
放顶煤开采
块度
放出率
煤炭回收率
变形规律
coal caving
agglomeration
coal caving ratio
coal recovery ratio
distortion rule
