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Study On Technology Of Rockburst Prevention And Control In Deep High Coal Seam

Posted on:2008-10-03Degree:MasterType:Thesis
Country:ChinaCandidate:S B TaoFull Text:PDF
GTID:2121360242456665Subject:Mining engineering
Abstract/Summary:PDF Full Text Request
This article uses the method of fundamental research, narrated the developing process ofadvance pressure in deep high coal seam, established the deep high coal seam to put goesagainst pick the field roof structural model, and has carried on the viscoelasticity damageanalysis to it, obtained has put goes against the coal to pick the field in advance force ofsupport analysis expression. According to scene actual, the generalized analysis has put goesagainst the coal to pick the field force of support distribution rule, the lamination picks thefield force of support distribution rule in advance, puts in advance goes against the coal to pickthe field to go against the coal migration rule and the drill hole powdered coal quantitydistributed rule. Using rock breaking process analysis software (RFPA), to put goes againstcoal mining and the lamination mines two different mining coal methods to conduct the analogcomputation contrast research, confirmed has picked the field in advance force of support thedistributed rule, obtained in the deep high coal seam mining process, in the impact geostaticpressure control aspect, put goes against coal mining to surpass lamination mining. Based onputs goes against the coal to pick the field in advance force of support distribution rule, thecomprehensive utilization fundamental research, the scene actual research and the valuesimulator study achievement, proposed including mining before in strategic preventing andcontrolling, the mining process tactic preventing and controlling as well as the partial specialregion preventing and controlling deep high coal seam impact geostatic pressure preventingand controlling means. The union this article research results, in view of Liang Baosi the ore3107 working face actual geology mining condition, has carried on impact geostatic pressurepreventing and controlling, has provided the theory basis for scene impact geostatic pressurepreventing and controlling, and has consummated rockburst preventing and controlling theoryand the method in the deep high coal seam mining.
Keywords/Search Tags:Deep high coal seam, Rock burst, Abutment pressure in advance, Numerical simulation, Heterogeneity, Prevention and cure
PDF Full Text Request
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