关键词: 深部巷道, 大变形, 高强全锚注, 深部开采

Abstract: Aiming at the deep high stress soft rock roadway under high tectonic stress extrusion produced large deformation instability problem, put forward the anchor high Strength full range, large range, deep rock grouting reinforcement, achieve high strength hollow bolt / cable anchor to anchor by the transformation, at the same time, the consolidation of surrounding rock quality and strong, improve the surrounding rock and supporting structure coupling self bearing capacity; Pingdingshan coal mine three level by a delay test section by air rise up mining of high strength and high performance bolting materials, hollow bolt / cable, high pressure grouting of surrounding rock in large range, deep grouting, and the roadway surface displacement, deep separation deformation, rupture and other comprehensive methods to determine the strength at anchor reasonable time, measured two for deformation is less than 10mm, the maximum deformation of roof 600mm, long-term stability can be achieved by simple repair of roadway.