临近巷道预掘岩巷法过断层的研究

Study on roadway nearby pre-mining method applied in crossing fault

亿欣煤业为缓解15号煤一盘区东回风大巷风速超标问题,计划在南翼布置一条南翼辅助回风巷,使南翼所有的工作面回风通过风井西侧回风,缓解东回风大巷风速超标问题。根据地质资料分析,该南翼辅助回风巷掘进过程中将揭露F_(13)断层落差15 m。为了安全通过断层,对4种通过方案进行对比,最终采取利用临近巷道预掘岩巷的方法,实现了安全快速通过断层段。

Based on the wind speed out of limits in No.15 coal seam eastern air return roadway of Yixin Mining Industry,south wing auxiliary air return roadway was proposed,which alleviates wind speed out of limits.Based on geological data,the mining of the south wing roadway may disclose 15 m fall of F13 fault.Pre-mining method was adopted finally after analyzing the four plans.