综放面沿空掘巷布置及围岩稳定性研究

On the Layout and Stability of Surrounding Rock of Gob-side Entry Driving in Fully Mechanized Caving Face

基于唐安孤岛工作面沿空掘巷支护难题,为了减少资源浪费,提高煤矿开采效益,确定唐安煤矿孤岛工作面沿空掘巷小煤柱的合理尺寸,采用极限平衡理论进行公式计算和相似模拟理论进行巷道矿压规律研究,确定出合理的煤柱尺寸和相应的巷道稳定控制关键技术。

By analyzing the support problems in gob-side entry driving in Tang＇an island face, in order to reduce the waste of resources and achieve high yield and efficiency of the mine, the reasonable size of small coal pillars in gob-side entry driving in island face of Tang＇an Coal Mine is determined, limit equilibrium theory is used for formula calculation, and similar simulation theory is used for study on the law of mine pressure of roadway, to determine the reasonable size of coal pillar and the corresponding key technology for roadway stability control.