Optimization and Application of Surrounding Rock Control Technology in Panel Roadway under Influence of Overlying Coal Pillars
In order to solve the problem of instability and deformation of the panel roadway caused by the superimposed stress of the residual coal pillar in the overlying coal seam,the deformation mechanism and law of the panel roadway are mastered through the monitoring and analysis of the field rock pressure data.At the site,the coal sides are reinforced by alternating grouting of shallow and deep holes,combined with reinforcement support by side anchor cables and bottom plate grouting anchor rods(cables).Engineering practice has shown that grouting reinforcement,anchor cable reinforcement,and bottom plate grouting anchor rod(cable)reinforcement effectively control the deformation of the roadway and meet the safety production needs of the main roadway in the panel area.
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