Study on optimization of support parameters for thin coal seam roadways in Binhu Coal Mine
With the increasing scarcity of coal resources,the mining of thin coal seams has gradually received attention.As the main mining seam in Binhu Coal Mine is a thin coal seam,the production efficiency of the enterprise is relatively low,so various reasonable ways are needed to save costs,reduce consumption,and increase efficiency.Based on the actual conditions of the material roadway in the No.12131 working face,this paper obtained the reasonable range of roadway support parameters through theoretical calculation of bolt support parameters.Based on the original support scheme,two optimal design schemes for roadway support were proposed by adjusting the row spacing between bolts.Through numerical simulation,the deformation,stress distribution,and plastic zone distribution of sur-rounding rock in the roadway under different support schemes were compared,and the optimal support scheme was finally determined,and on-site strengthening support measures were proposed.
万方数据
维普
