In order to solve the phenomena of high labor intensity,low mining efficiency and bottom drilling which exist in the over-advance support of the working face by using monobloc hydraulic pillars,based on the comprehensive assessment of the geological conditions of the working face belonging to the No.9 coal seam and the corresponding support effect of the original support scheme,the support scheme of reinforced anchors was derived through theoretical calculations;at last,the over-advance support scheme of the working lace by using monobloc hydraulic pillars and reinforced anchors was verified through practical production.Finally,through practical production,the control effect of the tunnel perimeter rock corresponding to the monolithic hydraulic pillar and reinforced anchor cable adopted for the support is verified.
mining roadwaymonolithic hydraulic supportreinforced anchor cableperimeter rock deformationdisplacement monitoring
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NSTL
万方数据
