陶一矿九采下山煤柱回收与老巷充填技术研究

Taoyi Mine 9th Mining Area Downhill Coal Pillar Recycle and Old Roadway Filing Technology

邯矿集团陶一矿回收保护煤柱,但受原固定性支承压力和工作面超前支承压力的双重影响,采面过下山的临近区域煤体十分容易破碎,引起倾斜长壁仰斜开采面出现片塌与漏顶。针对上述问题,采用充填法,通过对充填材料和充填工艺的研究,解决回收煤柱的问题。

Handan Mining Industry Group, Taoyi Mine recycled protection coal pillar, but influenced by the original solid bearing pressure and working face advanced support pressure, mining area crossing downhill nearby, coal body was prone to smash to pieces, caused inclined long-wall inclined mining face piece of collapse and leaking roof. Based on the problem above, filling mining was adopted, through packing material and filling technology research to solve the recovery of coal pillar problem.