DOI: 10.11799/ce201706011
Study on three-dimensional integrated control for large section roadwaywith high stress weak intercalated layer embedded in roof
CUI Xu-fang
Abstract：In order to control the stability of large section roadway with high stress weak intercalated layer embedded in roof,taking the 2302 return airway in Licun Coal Mine as the engineering background,the deformation law in the return airway under different support parameters was studied by analyzing previous support problems with FLAC3D software.Meanwhile,support parameters in 2302 return airway were optimized,the technical scheme was proposed combining three-dimensional support structure with rib-roof-floor integrated control,and the controlling plan of roadway surrounding rock in high-stress weak intercalated layer was presented.According to the field application,during mining,the maximum roof subsidence,maximum two-sided displacement and maximum floor heave in 2302 return air way were 21.6cm,35.6cm and 15.7cm respectively.The roadway stability was controlled using the proposed scheme.
Keywords：high stressroof embedded weak intercalated seamlarge section roadwaythree-dimensional supporting structurerib-roof-floor integrated control
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( 36-39 )