摘要
介绍了长城三井在老式采煤法回采率低、单产水平低、安全得不到保障的情况下,通过试用整体组合顶梁悬移液压支架炮采工艺,回采工作面顶板管理得到加强,单产水平有了明显提高,安全环境得到了改善,这种液压支架的试用成功,为类似条件下工作面的采煤方法选择提供了参考依据和经验,为在公司其它矿井全面推广起到了积极的促进作用。
This paper introduced Changcheng Sanjing recovery rate is low and yields a low level of security can not be guaranteed in the old - fashioned mining method, through apply of the entirety assembly bar suspension hydraulic timber blasting mining technology, strengthened coal mining face roof management, improved yields level markedly and security environment has improved, to be success- ful trial of the hydraulic timber, provided reference and experience of working face which undered similar conditions, played a positive facilitating role of overall promotion for other mines in the company.
出处
《煤》
2009年第3期13-14,23,共3页
Coal
关键词
整体组合顶梁
液压支架
应用
entirety assembly bar
hydraulic timber
application
