Study on coordinative pre-drainage technology in stage area of contiguous outburst seams
Wang Jian
Abstract：According to the problem the regional pre-drainage measures with the boreholes through strata were applied to a coal mine with a contiguous seams,due to ineffectively master the borehole gas drainage variation law and a relationship between the drainage time and the borehole intervals could not be effectively controlled,thus the issue of the mine mining and driving layout was seriously affected.In combination with the regional pre-drainage practices with the boreholes through the strata in Wulan Mine,a plan comparison was conducted on the borehole through the strata and a study was conducted on the time-space evolution law of the regional pre-drainage.Based on the circumstances,the regional pre-drainage model with the boreholes through the strata was established,and the accuracy rate reached to 91％.Thus according to the mining and driving alternative plan,a design idea of the regional coordinative pre-drainage measure parameters at the stage of the borehole through floor strata were determined,thus the combined outburst prevention issue of the outburst seams was solved.
Keywords：contiguous outburst seamsdrilling through stratacoordinative pre-drainagegas drainage
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 102-106 )