摘要
残余煤柱的回收对于提高煤炭采出率和资源利用率,实现矿井的可持续发展具有重要的经济与社会价值。某矿5盘区工作面回采完毕,但采空区的特殊矿压显现给残余煤柱回收带来许多困难。本文以某矿5盘区5319、5320等工作面残余煤柱回收问题,设计合理的沿空掘巷煤柱留设宽度,保证掘巷期及小工作面回采期安全生产需求,实现5盘区残余煤柱安全高效回收。
The recovery of residual coal pillars has important economic and social value for improving coal recovery rate and resource utilization rate and prolonging mine life. A coal mine 5-panel working face mining is completed, but the special mine pressure brought about by the goaf has brought many difficulties to the recovery of residual coal pillars. Therefore,based on the problem of recovery of residual coal pillars in the 5319,5320 and other working faces of the 5th panel of coal mine, this paper designed a reasonable-width of coal pillars in gob-side tunneling can ensure that safe mining requirements can be met during the roadway excavation period and the small working face mining period, and the safe and efficient recovery of residual coal pillars in the 5-panel area can be achieved.
作者
刘风录
Liu Fenglu(Guoneng Yulin Energy Co.,Ltd.,Shaanxi,719000)
出处
《当代化工研究》
2023年第1期137-139,共3页
Modern Chemical Research
关键词
煤柱回收
沿空掘巷
窄煤柱
coal pillar recovery
gob-side tunnel
narrow coal pillar
