高承压水与深部应力耦合作用下顶板运移及应力显现规律

Roof migration and stress development under the coupling effect of high confined water and deep stress

基于彬长矿区高家堡矿4^(#)煤深部工作面上方存在洛河组砂岩含水层的地质条件,探讨了含水层与动力灾害孕育的关系,介绍了彬长矿区4^(#)煤上方顶板含水层的形成原因和赋存状况;基于工作面涌水量数据,考证了工作面支架阻力与涌水量变化之间关系,阐述了涌水量变化与微震频次之间的时空关联特征,解释了微震与涌水之间时空关联及其产生机理。强调了工作面微震-涌水日报对防冲和防治水的重要意义;阐述了涌水增加后承压水运动在工作面产生的动静载,提出应重点关注水量突增后工作面的动力灾害危险。

Based on the geological condition of Luohe Formation sandstone aquifer above the deep working face of 4^(#)coal in Gaojiapu Mine,Binchang Mining area,the relationship between aquifer and dynamic disaster breeding is discussed.Firstly,the formation and its setting condition of the aquifer above 4^(#)coal seam are introduced.Based on field water inflow monitoring data,we examined the relationship between the resistance of the support and the change of water inflow.The temporal and spatial correlation between micro seismicity and water movement is analyzed and identified,which will offer significant value for the early-warning of the dynamic hazards and water inrush.We expound the dynamic and static load of confined water movement on the working face after the increase of water inrush,and point out that it is important to pay more attention to the dynamic disaster risk of the working face after the water surge.