DOI: 10.11799/ce201803012
Application of pre-stressed bolt-grouting technology for high-stress roadway repairing in deep mine
WANG Qing-niu
YANG Zhang-jie
WANG Wei
Abstract：According to the continued deformation problems of tracL roadway with broLen surrounding rocL under the high geostress conditions of 13-1 coal seam in Guqiao Coal mine, based on site survey, the failure characteristics and the internal structure of surrounding rocL are analyzed. Pre-stressed bolt-grouting technology based on bolt and anchor support is proposed to repair roadway in this paper. Engineering practice shows that the support scheme is effective to prevent roadway deformation, with its favorable supporting effect.
Keywords：pre-stressed bolt-grouting technologyhigh stress in deep mineroadway repairingsoft broLen surrounding rocLtwo-step grouting
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 47-49,52 )