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ID:40022174
大小:762.79 KB
页数:5页
时间:2019-07-17
《24国际矿加 The Possibility of Outburst Origin in Long Mine Workings》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ThePossibilityofOutburstOrigininLongMineWorkingsv.Hudecek,J.Lat,P.Michalcik,P.UrbanFacultyofminingandgeology,TechnicalUniverzityofOstrava,Ostrava,TheCzechRepublicEmail:vlastimil.hudecek@vsb.czABSTRACTProblemsofsuddenoutburstsofrockandgaspresentindeepmineminingonesofthemos
2、tcomplicatedinterrogation.Itissearchingforthemethodsofpredictionandprognosisthatcanbemostusefulforthegov-emmentofthesephenomena.TillflOWthepressureandthedesorptionofgasinboreholeswascon.sidertobethedecisivecriteria.Bytheworkofauthorswithusingofstatisticaldatewasverifythat
3、forconsiderablereliabilityofforecastandpreventoutburstsisnecessityinvestigatecharacteristicsofworkplaceandotherindicators.Theseindicatorswereanalyzingandassemblageintomathe.maticaldependenceswhichrepresentactiveandpassiveforceassertingwithintheprocessofrush.Itwasvalidated
4、byusingtheequationswhichalepresentedinthemanuscriptthattheaccuracyofpredictionofthephenomenaishigherandmethodsofpreventionsarebetteralso.NTRODUCTIONProblemsofrockandgasOHtburstsarestilltopical.Accordingto(LatJ,2006)andothersources,thishazardisveryseriousinmanycountries,fo
5、rexampleinChina,Ukraine,intheareaofKemerovo(Russia)。Poland.IntheframeworkofsolvingthegranttaskNo.GACRl05/05,0l3.VSB.TUOstravaCzechRepublicwefocusedourattentiontothemethodsofforecastingthementionedphe.nomenontoo.Fromthedetailedanalysisoffor-ecastingmethodsintheCzechRepubli
6、caswellasabroaditfollowsthattheexistingmethodsdonotexpressapossibilityofoutburstoriginwithsufficientreliability.THEANALYSISOFS1iATlSTICALDATABythepreviousanalysisofstatisticaldatafromthePaskovMine.Sta瑜plant,itwasprovedthatindicators(gaspressureandinitialdesorptionrate),wh
7、ichparticipateddecisivelyintheforecastofhazardofcoalandgasout.burstsandinthepreventionofthisgas.dyna.micalphenomenon.indicatedallincreasedhaz.ardoftheoriginofcoalandgasoutbursts(hen.ceforthreferredtoasCG01onlyinasmall4396numberofoutbursts.Inacaseofmeasuringthepressureofga
8、ses,over-limitvaluesabove250kPa.indicatingallincreasedhazardofCGO.wererecordedmerelyin34cases.wh
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