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文章介绍了在盘区运输石门上覆近层间距煤层的工作面布置方法及开采技术,同时对开车期间的矿压显现和周期来压强度、步距进行观测和总结分析。通过对下伏865轨道及皮带运输石门采用U29拱型棚和单体柱的加强支护,实现了安全开采,为类似条件下矿井如何安全开采大巷上覆煤柱提供借鉴经验和科学依据,为如何提高老矿煤炭资源回收率,延长矿井服务年限拓宽了思路,提供了新的方法。
This paper introduces the layout method and mining technology of coal seam face on the transport Shimen over the plate. At the same time, it also observes and summarizes the occurrence of mine pressure and the cycle pressure and step distance during driving. Through the support of U29 arched shed and monolithic column for the under 865 rail and belt transportation stone gate, safe mining is realized, and how to mine the overlying coal pillar safely in the condition of similar conditions can provide reference and scientific basis, For how to improve the recovery rate of coal mines in old mines, extending the service life of mines to broaden the train of thought, providing a new method.