摘要
厚层坚硬顶板的无煤柱自成巷开采相比一般条件顶板带来的问题突出。系统总结了关于厚层坚硬顶板无煤柱开采的关键控制技术,包括采用分级综合预裂爆破技术体系、高恒阻大变形锚索支护技术和挡矸防冲支护技术体系,研究内容完善了无煤柱自成巷开采的技术框架,进一步推动煤炭开采行业技术革新。
Compared with the general conditions of the roof,the problems caused by the self-forming roadway mining without coal pillars in the thick layer and hard roof are very prominent.This paper systematically summarizes the key control technologies for coal-pillarless mining on thick-bed hard roofs,including the adoption of graded comprehensive pre-splitting blasting technology system,high constant resistance and large deformation anchor cable support technology,and gangue and anti-scour support technology system,which improves the no coal pillar mining technology system.The technical framework of self-forming roadway mining without coal pillars further promotes the technological innovation of the coal mining industry.
作者
刘晓宇
于世波
王志修
曹聪
LIU Xiaoyu;YU Shibo;WANG Zhixiu;CAO Cong(BGRIMM Technology Group,Beijing 102628,China;National Centre for International Research on Green Metal Mining,Beijing 102628,China)
出处
《中国矿业》
2023年第S01期295-302,共8页
China Mining Magazine
基金
国家重点研发计划资助项目“深井大规模开采岩体力学理论与动力灾害防治技术”资助(编号:2022YFC2904100)
矿冶科技集团有限公司青年科技创新基金项目资助(编号:04-2341)。
关键词
坚硬顶板
无煤柱开采
切顶卸压
爆破预裂
恒阻大变形锚索
挡矸防冲
hard roof
no pillar mining
roof cutting and pressure releasing
pre-split blasting
constant resistance large deformation anchorage
anti-impact gangue
