矿井火灾严重程度评价

620.20309SeverityAssessmentofMineFireZHANGXing-kaiProf.ChinaAcademyofSafetyScience&TechnologyClassificationandcodeofdisciplines620.2030AbstractFrequentlyoccurredminefiresresultinenormouscasualtyandpropertyloss.Riskassessmentofmineisaveryim-portantmeanstoimprovethelevelofessentialsafetyandtoreducetheincidenceofaccident.Throughtheanalysesoffiringprocessandsmokeflowbehaviorintunnelincaseofminefireanumericalmodelisestablishedforthehighesttemperatureofthesmoketheconcentrationofoxygeninsmokeandthetemperatureofsmokeinthetunnelofpollutedarea.Themodelprovidesanothermodelforseverityassessmentcomposedofthescopeofpollutionowingtosmoketheconcentrationofoxygeninthesmokeandthetemperatureofsmokeduringtheminefireandthemethodtoresolvethemodel.Andamineventilationnetworkwithninesubsys-temsisassessedthroughnumericalcalculation.KeywordsMinefireRiskassessmentSeverity120049819200411207012002～200435225332823422.1A15420054ChinaSafetyScienceJournalVol.15No.4═══════════════════════════════════════════════════════════════Apr.2005∂CO2∂t+v∂CO2∂x+CO2∂v∂t=γKUCO2SCO2|t=0=C0CO2|x=0=CO2t}1CO2C0CO2ttsSm2vm/sγUmxmKm/s1molq1kJ1molq2kJTm=T0+2θC0δq1+q2φρ0cp2+δ1-expγKUL()[]Sv2TmKT0Kφ1～1.15θδcpkJ/kgKρ0kg/m32.2T=Ak+T1-Akexp-BkxAk=T0-JmgαbUBk=αbUmc⎫⎬⎭⎪⎪⎪⎪p3TxKmkg/m3T1KT0KαbW/m2KJT1=ΣNi=1m2icp2iT2icp2ΣNi=1m2i421NC1=ΣNi=1v2iS2iC2iΣNi=1v2iS2i533.1tX=vt6Xmvm/s1～341QrQCyQrkg/sQm3/sCykg/m32QrΣNi=1QiCyQi3TrTyTrTy4C1CyT1Ty62ChinaSafetyScienceJournal152005═══════════════════════════════════════════════════════════════3.2D=ΣNi=1Bi+Zi+Pi+Ci7NBiZiPiCii3.3112～51mkg/m3mJ/sm2134-650-5003.07750010005.0261-200-150.688500010.0313-15-6501.39370007.0412-15-7002.09070007.0532-650-7001.06920004.0625-700-4501.03050015005.0745-500-4501.54020004.0846-500-2004.31650015007.0956-450-2002.26650010007.02379m3/s255m3/s543m3/s147.2Pa343.4Pa490.5Pa-15m288.3K0.015K/m1.5W/mK1101396Pa1.21kg/m3293K130m0.5m2minm%Km/s00.5021.00298.30.00011.0320.27329.00.52952.9918.74391.90.479105.2316.70476.10.423157.1514.49567.00.360208.7612.12656.10.2993m/sKkg/m3m1342.382.47298.3304.71.271.220.52613.293.23296.6291.21.201.210.03132.552.48293.1299.41.211.260.04122.172.12293.1299.81.211.270.05321.381.37298.3306.91.261.240.06254.054.21300.9304.21.261.210.07450.180.18303.4302.01.221.220.08462.002.04303.4297.71.221.190.09562.772.80303.0296.91.221.200.072═══════════════════════════════════════════════════════════════4150sm/sKkg/m3m1342.342.72298.6308.21.271.20366.82613.433.39298.0293.91.191.200.03132.552.42293.1298.61.211.270.04122.152.03293.1299.51.211.270.05321.291.30298.6301.11.271.260.06253.873.99299.9300.81.271.230.07540.160.16300.8303.21.231.220.08462.042.07308.0298.31.201.190.09562.762.82300.8297.71.231.190.05900sm/sKkg/m3m1342.063.01298.8323.81.271.14477.22613.473.47299.4294.21.191.205003132.382.27293.1298.81.211.270.04122.011.91293.1299.71.211.270.05321.391.39298.8301.21.271.260.06253.793.89300.1300.81.271.230.07540.090.09300.8302.61.231.230.08462.212.16323.3301.61.151.18500.09562.732.80300.8297.81.231.190.01193.8s187439.2s82585.8s241234200412171000291..EB/OLHttp//～233182ChinaSafetyScienceJournal152005═══════════════════════════════════════════════════════════════