【摘要】 本文介绍了在金桥煤矿大面积村庄压煤的条件下 ,用条带放顶煤开采 ,对保留条带煤柱进行锚杆支护 ,保留条带煤柱能长期有效的支撑顶板岩层 ,在金桥煤矿的具体条带方案实施中 ,煤炭回收率可达 40 %～5 5 % ,带来了较好的经济效益和社会效益。更多还原

【Abstract】 This paper presents bolt supporting of retain strip pillar in strip top coal mining in Jinqiao colliery where the coal seam is occupied by villages, the retain trip coal pillar can support the roof effectively and over a long period of times, the coal rate of recovery can be improved between 40% 55%, so the better economic and social benefit can be improved.更多还原