2009•Coal Mining TechnologyRequires access
Comprehensive Prevention Technology for Rock-burst and Application in Huating Colliery
Yuliang Zhang
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Abstract
Rock-burst has threatened safety mining of Huating Colliery with mining depth increasing.This paper comprehensively analyzed rock-burst cause and made prediction with different danger areas and grades by acoustic emission,micro-seismic,electromagnetic radiation and drilling method.Comprehensive prevention methods including deep-hole blasting for breaking roof,coal blasting for pressure relief,water injecting into coal and roof and drilling for pressure relief were applied according to different danger degrees of varied places to comprehensively preventing rock-burst.