Research and application of differential collaborative support technology for weak-rib roadways in coal mines
CAO Xiongwei
HAI Li
TAO Peng
LIU Jiantao
JIA Xiaoyu
Abstract：The roadway of the 2201 working face of Yingpanhao Coal Mine has a large burial depth,a large cross-section and weak coal seams on the sides.Under the existing support conditions,the deformation of the side is large and the support strength is insufficient.Based on the geological conditions of the working face and the original support method,the support scheme was optimized,and the stability of the roadway during the tunneling process was analyzed by numerical simulation.The on-site monitoring research shows that after adopting the support optimization scheme,the maximum approach of the two sides is 276mm,which is 76.6%less than the original support section.Meanwhile,within the support range,no roof delamination occurred,indicating the effectiveness and rationality of the support optimization scheme in controlling the weak coal side roadways of Yingpanhao Coal Mine.
Keywords：weak side roadwaydeformation mechanismsupport technology optimizationnumerical simulation
Publication Date：2025-12-30
Online Publishing Date：2025-12-19(First online date of this platform, not the publication date of the document)
Pages：6( 26-31 )