工作面平推过陷落柱技术及巷道矿压显现特征

Horizontally Passing Through Sink Hole Technology of Coal Mining Face and Features of Mining Gateway Strata Pressure Behavior

以天煜恒晋煤矿9103综放工作面为背景,论述了综放工作面平推过陷落柱情况下的顶板管理、开采工艺等方面的技术措施。在回采巷道中,观测巷道受采动影响下的表面收敛量、锚杆受力及两帮的裂隙发育等矿压显现的特征值,利用观测结果对该矿处理陷落柱的方式可行性进行论证,为该矿以后生产及类似情况下提供一定的技术参考和技术参数。

Base on No.9103 fully mechanized top coal caving mining face in Tianyu Hengjin Mine as the background,the paper stated the roof control,mining technique and other technical measures under the conditions of the fully mechanized top coal caving mining face passing through the sink hole.In the mining gateway,the surface convergence,bolt stressed,crack development in the two sidewalls and other mine strata pressure behaviors features values were observed under the mining activity influences.The observation results could be applied to verify the feasibility of the sink hole treatment in the mine and could provide certain technical references and technical parameters for the mine further production and similar conditions.