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1、我国北方典型矿井煤自燃危险性对比研究郝朝瑜陈艳玲汪婷顾维(1辽宁工程技术大学安全科学与工程学院,辽宁阜新123000)摘要:为了更冇效地预防矿井屮煤自燃引起的火灾,采取合理的措施,通过分析建立了影响煤门燃的内在和外在影响因素指标体系,结合我国东北、华北、西北典型矿井的实际情况,运用层次分析法建立典型矿井煤自燃危险性评估的数学模型,并利用理想点法建立数学模型对典型矿井煤口燃危险性进行综合评价。研究结果表明,东北地区的南山煤矿虽然煤的变质程度是气煤,煤的变质程度最高,原煤水分最小的矿井,但由于其煤层厚度大、煤层倾角大、工作而回采率低、平均冋采速度小等原因,其发生煤门燃危险
2、的程度最高;西北的酸刺沟煤矿和东北的南山煤矿煤自燃危险程度接近并略低丁-南山煤矿;华北的宣东煤矿由于煤层悖度小、工作面回采率高等原因,煤自燃危险性最小。分析结果能够科学定杲的给出煤自燃的危险程度,并找出影响矿井煤口燃的主要因素,为矿井采取适当的措施提供依据。关键词:煤自燃;层次分析法;矿井火灾;危险性中图分类号:X936文献标识码:A文章编号:RiskanalysistypicalofnorthernChinacoalminespontaneouscombustionHaoChaoyuChenYanlingWangTingGuWei(ICollegeofSafetyS
3、cience&EngineeringLiaoningTechnicalUniversity,FuxinLiaoning123000,China)Abstract:Inordertomoreeffectivelypreventtheminecoalspontaneouscombustioncausedbythefire,takereasonablemeasures,throughtheanalysistoestablishtheinternalandextemalinfluencefactorsaffectingcoalspontaneouscombustioninde
4、xsystem,combinedwithChina'snortheast,northChina,northwesttypicalmine'sactualsituation,usingtheanalytichierarchyprocess(ahp)toestablishthemathematicalmodeloftypicalcoalminespontaneouscombustionriskassessment,andtheidealpointmethodisusedtoestablishthemathematicalmodeloftypicalcoalminespon
5、taneouscombustionriskcomprehensiveevaluation.Theresearchresultsshowthatthenortheastregionofnanshancoalminewhilethemetamorphicdegreeofcoalisgascoal,coalmetamorphicgrade,highestrawcoalmoisturesmallestmine,butduetotheirlargethicknessofcoalseam,largedipAngleofcoalseam,miningfacerateislow,an
6、dthereasonofsmallaveragerecoveryrate,thehighestdegreeofcoalspontaneouscombustiondangerous;AcidstingditchcoalmineinthenorthwestandnortheastofNanShancoalminecoalspontaneouscombustiondangerdegreeapproachandslightlylowerthanNanShancoalmine;XuanDongcoalmineinnorthChinabecauseofthesmallthickn
7、essofcoalseam,theminingfaceratehigher,coalspontaneouscombustionriskisminimal.Analysisresuitscanscientificandquantitativeriskofcoalspontaneouscombustionisgiven,andfindoutthemainfactorsinfluencingtheminecoalspontaneouscombustion,providethebasisforminetotakeappropriatemeasures.Key