摘要
本文针对西铭矿48703工作面坚硬顶板地质赋存条件,通过应用定向预裂爆破技术并设计预裂爆破具体方案,利用矿压监测手段表明,不仅可以减小工作面顶板来压步距,还可以保证正在使用回采巷道的围岩稳定性,从而达到保证工作面安全高效回采的目的,研究结果可以推广到矿井其他类似条件的8号煤层工作面回采工作当中。
According to the geological occurrence conditions of hard roof in 48703 working face of Ximing mine,this paper applies directional presplitting blasting technology and designs specific presplitting blasting scheme.The use of mine pressure monitoring means shows that it can not only reduce the roof weighting step of working face,but also ensure the stability of surrounding rock of working roadway,so as to achieve the purpose of ensuring safe and efficient mining of working face,The research results can be extended to other similar conditions of 8 coal seam mining.
作者
李杰
LI Jie(Shanxi Xishan Coal and Power Co.,Ltd.Ximing Mine,Taiyuan030052,China)
出处
《煤矿现代化》
2022年第1期40-42,共3页
Coal Mine Modernization
关键词
综采工作面
坚硬顶板
定向预裂爆破
矿压监测
fully mechanized working face
hard roof
directional presplit blasting
mine pressure monitoring
