DOI: 10.11799/ce201704013
Combined support technology of bolt-mesh-cable-beamin the three-soft thick coal seam
GUO Tao
LI Peng-fei
ZHOU Xiao-long
Abstract：According to the engineering geological conditions of the three-soft thick coal seam mining roadway,engineering analogy method and theoretical calculation were used to design the parameters for bolt-mesh-cable-beam combined support.The surface displacement of transportation roadway and the roof separation were monitored.According to the results,the max two-rib convergence was110mm,and the max roof-to-floor convergence was 135mm;the max separation of roadway shallow base point was 8mm,and 25mm for deep base point,which indicated that,the surrounding rock deformation and roof separation were controlled in large-section soft-rock roadway,and the overall roadway stability was improved.
Keywords：the three-soft thick coal seammining roadwaybolt-mesh-cable supportsurrounding rock deformation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 39-42 )