Supporting design and parameter optimization of mining roadway in shallow buried coal seam working face
CHU Fengjiao
CHU Jutao
DONG Fei
WANG Mengcheng
ZHANG Zhongyuan
FAN Yuzhang
SUN Lihui
Abstract：Regarding the issue of unreasonable supporting strength in shallow buried coal seams,taking the geological conditions of a shallow coal seam working face in a mine as the engineering background,the preliminary supporting scheme of the roadway was obtained through theoretical calculation,and the numerical simulation technology was further used to optimize the roadway supporting parameters,and the stability of the roadway was verified.The results showed that when the bolt was φ18 mm ×2 100 mm,the row spacing was 1 100 mm × 1 200 mm,the anchor cable was φ15.24 mm x6 500 mm,one column was arranged along the middle line of the roadway,when the row spacing was 3 300 mm,under the condition of ensuring the supporting effect,the deformation and failure range of the surround-ing rock of the mining roadway were small as a whole,which was more conducive to ensuring the safety of mine production and impro-ving economic benefits.The research results provide experience and reference for the rational design of shallow buried roadway support-ing scheme.
Keywords：shallow buried coal seammining roadwaybolt-mesh-anchor supportingoptimization of supporting parametersnumerical simulation
Publication Date：2024-06-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 88-92,98 )