摘要
为了研究黑岱沟露天矿边帮压煤综放开采时顶煤的冒放性,采用理论分析、数值模拟和类比分析相结合的方法从煤层强度、顶煤节理裂隙、煤层夹矸和顶板条件4个方面进行顶煤冒放性的研究。结果表明:该矿边帮压煤回收区浅埋特厚煤层顶煤冒放性较好。
In order to study top-coal caving characteristics of under-slop coal with fully mechanized sublevel caving in Heidaigou Open-pit Mine,using the theoretical analysis,numerical simulation and analogy analysis to study the top-coal caving characteristics from 4 aspects of coal seam strength,top-coal joint fracture,coal seam with gangue and roof conditions,the result show that this mine top-coal caving characteristics of shallow-buried and extra-thick coal seam in the under-slope coal recovery area is good.
作者
李岚
LI Lan(China Coal Technology and Engineering Group Shenyang Design&Research Institute,Shenyang 110015,China)
出处
《露天采矿技术》
CAS
2020年第5期75-77,81,共4页
Opencast Mining Technology
关键词
边帮压煤
顶煤冒放
煤层强度
煤层夹矸
浅埋特厚煤层
under-slop coal
top-coal caving
coal seam strength
coal seam with gangue
shallow-buried and extra-thick
