矿井煤岩动力灾害电磁辐射预警技术

321Vol.32No.120071JOURNALOFCHINACOALSOCIETYJan.2007:0253-9993(2007)01-0056-041,1,2,2,2,2(11(),100083;21,221008):,.:,3,.:;;;;:TD712:A:2006-02-08::(50427401);(973)(2005cb221502);(2005BA813B-3-09):(1961-),,,,.Tel:[phone],E-mail:hexq@chinasafety1gov1cnElectromagneticemissionforecastingtechnologyofcoalorrockdynamicdisastersinmineHEXue2qiu1,NIEBai2sheng1,WANGEn2yuan2,DOULin2ming2,LIUMing2ju2,LIUZhen2tang2(11SchoolofResourceandSafetyEngineering,ChinaUniversityofMining&Technology(Beijing),Beijing100083,China;21SchoolofMiningandSafetyEngineering,ChinaUniversityofMining&Technology,Xuzhou221008,China)Abstract:Thedeterminedmethodofthecriticalvaluesanddynamictrendcoefficientofelectromagneticemission(EME)forecastingcoalandgasoutburstandrockburstwasattainedaccordingtostress2electricitycouplingmodelofcoalorrock,differentcharacteristicsofbothdisastersandlotsofdatameasuringinsitu.TheresultsshowthatEMEforecastingindexeswerebothpulsenumberandintensityandforecastingmethodwascombinationofstaticcriticalvaluesmethodanddynamictrendmethod.Accordingtothispredictionmethodthedangerofdynamicaldis2asterscanbeclassifiedtothreelevelsforecastingsuchasnodanger,weakdangerandstrongdanger.Thecorre2spondingmeasurementscanbeadoptedtothebasisofdifferentforecastinglevel.Keywords:mine;coalorrockdynamicdisaster;electromagneticemission;forecastingcriterion;gradingforecas2ting[15],,.:;.,,,.,.1:1.;.,,,.,;,;,,,.,,.,,.,,.2211,,=E.[3,4,68]N=Nmm01-3/20m-1exp-1-3/20m,,Nm;m,0Weilbull;1,3;N,.1,2N1,N2N2N1=2-3/21-3/2m-1exp1-3/20m-2-3/20m21.,,N2/2N1/1=21m-1exp10m-20m.(1),,-,-,.w,Nw,r,q,Nr,Nq,(1)KNr=Nr/rNw/w=rwm-1expw0m-r0m,KNq=Nq/qNw/w=qwm-1expw0m-q0m,(2),KNr,KNq.(2).212,.75200732,,,.W==2/E.,We=aeW=ae2E=a2,(3),ae.WeEWe=VwedV=V12EDdV=12E2V,,we;E();D;V;.,WeE2,We=bE2.(4)(3),(4)E2=k2,E=k,k,k..Ew,Er,Eq,KEr=ErEw=rw,KEq=EqEw=qw,(5),KEr,KEq.(5).3,.,.,,KNr=115,KNq=118,KEr=113,KEq=117.(6)KNr=117,KNq=213,KEr=113,KEq=117.(7),,.4,.,,Nw,Ew,(6)(7).1,.13,KE;KN.,.851:,,,.1Table1EMEforecastingmethodandpreventionmeasureofcoalandrockdynamicdisastersE113EwN115NwE113EwN115NwE117EwN118NwE113EwN117NwE113EwN117NwE117EwN213NwKE113KN115KE113KN115KE117KN118KE113KN117KE113KN117KE117KN2131Fig11EMEforecastingarchitraveofcoalandgosoutburstandrockburst(a);(b)5,,,.,.:[1],,,.[J].,2000,29(3):225229.[2].[D].:,1997.[3].[D].:,2001.[4].[D].:(),2003.[5],,.[J].,2004,29(4):396399.[6],,.[J].,2003,39(So):6063.[7],,,.[M].:,2003.[8],,.[J].,2006,23(1):111114.95