摘要
文章介绍了峰峰集团孙庄煤矿12465Ⅱ工作面的总体情况,根据其工作面和巷道概况,决定采用沿空留巷技术对其开采,根据孙庄煤矿预留巷道周围的地质条件,设计了切顶留巷顶板预裂爆破参数,分析了切顶卸压成巷的基本原理,提出了切顶卸压沿空留巷实施方案。
The paper introduced the general conditions of No. 12465Ⅱ coal mining face in Sunzhuang Mine of Fengfeng Group. A gateway retained along goal technology was determined for the mining operation of the coal mining face. According to the geological conditions around the pre - retained gateway in Sunzhuang Mine, the roof pre - fracturing blasting parameters of the retained gateway with roof breaking were designed. The basic principle of the retained gateway with roof breaking and pressure releasing was analyzed. A construction plan of the retained gateway with the roof breaking and pressure releasing was proposed.
出处
《煤炭工程》
北大核心
2012年第1期24-26,共3页
Coal Engineering
关键词
卸压切顶
沿空留巷
预裂爆破
roof breaking and pressure releasing
gateway retained along goal
pre - fracturing blasting
