Title: Comprehensive Control of Rock Burst near Termination Line of Working Face
Abstract: The area near the termination line of a working face is an area with frequent occurrence of rock bursts,affected by roadway layout,the quasi coal pillar is easily formed in the coal body of this section,the hazard of rock burst may generally increase more than that in the normal mining period,so it is necessary to work out a special comprehensive prevention and control plan for rock bursts.The experiences for the prevention and control of the occurrence of rock outburst in deep E3103 fully mechanized caving face during mining stopping in Xingcun Coal Mine are that when mining approaches the termination line,comprehensive prevention measures such as pressure release blasting for coal body,pressure release by large-diameter boreholes,advance support with flexible props,reduction of the mining height of coal seam and so on are taken in order to reduce the hazard of rock bursts;the prevention effectiveness for rock bursts is timely examined and evaluated by electromagnetic radiation method and drill cuttings method.The site application showed that the comprehensive prevention measures against rock bursts near the termination line effectively reduced the hazard of rock bursts,ensured the smooth mining and transfer of working face and can provide reference for the design of rock burst prevention and control of working face during mining stopping period in other mines with similar conditions.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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