DOI: 10.11799/ce201704012
Study on surrounding rock control technology for roadwayin gently inclined thick coal seam
HAO Zhen
ZHU Ying
REN Qian-hua
Abstract：In order to control the surrounding rock deformation for roadway in gently inclined thick coal seam,deformation and failure characteristics of roadway is studied with numerical simulation based on the engineering background of 201 air return way in Huagaishan Coal Mine.The result indicates the broken zone and plastic zone of surrounding rock is large,broken zone is mainly in the roof,and shallow surrounding rock is damaged by shear and tensile.Furthermore,bolt-mesh-cable-shotcreting supporting technology can effectively control the deformation of roadway surrounding rock under the geological conditions,with which,according to engineering practice,the maximum side-to-side convergence and roof-to-floor convergence is 105mm and 127mm respectively,occurring no bolt or cable failure.
Keywords：gently inclined thick coal seammining roadwaysurrounding rock controlbolt-mesh-cable-shotcretingnumerical simulation
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( 36-38,42 )