Design and Application of Support Scheme for Large-section Roadways of Nanyang Coal Industry Co.,Ltd.
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.
thick coal seamlarge sectionroadway supportsurrounding rock deformation
万方数据
维普
