In response to the problems of large thickness,large cross-section of mining roadway,and difficult support in the 3#coal seam of Nanyang Coal Industry Co.,Ltd.,a reasonable roadway scheme was determined using theoretical analysis and numerical simulation methods.On-site test was conducted in 3302 track roadway.Through real-time monitoring of the deformation of the surrounding rock,roof separation and anchor force in 3302 track roadway.On-site monitoring data showed that the deformation of the surrounding rock of the roadway was not significant,there was no risk of roof separation or instability,and the anchor force was in good condition,which can effectively constrain the deformation of the surrounding rock in the roadway.
关键词
厚煤层/大断面/巷道支护/围岩变形
Key words
thick coal seam/large section/roadway support/surrounding rock deformation
维普
万方数据