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:2006-11-23:2007-04-06(,518040):,,,,:;;;:TU996:A:1004-9614(2007)04-0012-03AssessmentMethodforEvaluatingDamageofUrbanGasPipelinebytheThirdPartyYANGYin2chen(ShenzhenGasGroupCo.,Ltd.,Shenzhen518040,China)Abstract:Theassessmentofthirdpartydamagemeansclassificationofaprobabilityunderwhichurbanpipelineisdamagedbydiffer2entexternalforces/thirdparties.Basedonthefactorsthatcausethethirdpartydamage,amathematicalmodelwasformulatedusingafaulttreeanalysisandafuzzycomprehensiveanalysis.Theimportanceofthesefactorswasidentifiedthroughthefaulttreeanalysis.Basedonsuchimportance,theassessmentvectorofthird2partydamagecanbeelaboratedthroughthefuzzycomprehensiveanalysis.Thegradingofprobabilityunderthatpipelinewasdamagedrestwiththemaximumvalueintheassessvector.Keywords:safetyassessment;faulttreeanalysis;thirdpartydamage;fuzzycomprehensive0,2:(),;,(),(),,,[1],[2],,,[3]1,,,,[4],,,,,,(1)(),,(2),,,(3),,,22.1,,,,,,:,,,2.2,,,20074PipelineTechniqueandEquipment2007No14,,,309,11ABCDEFGHI2.3,,,,,,,[5](),,[2],,[6],,,,,,,33.1,,,5,A,2,2,,,(),,,2,,,,200km188,2m1131101130181100160180161100181100160180140160140180160180140160120140121110191110170190150170153.29,11Semanderes,T=AE+AF+AG+BH+BCI+BD+BE,C=(012222,012593,010370,010741,011481,010741,010741,010741,010370)3.3(1)UV:U={u1,u2,,ui,,u9}V={v1,v2,v3,v4,v5}:u1,u2,,ui,,u99,5;v1,v2,v3,v4,v55,v1v5(2):,,,Uj={u1j,u2j,,uij,,u9j}BiBi=ri©R:Bi15;ri15uij,uijR;©,(,+);R55,ij,(3):,,V=C©B4:13:V15;C19,;©,(,+);B95,3.4V,44.1U=(,,,,,,,,),,R:R=015333,012667,011333,010667,0012105,014211,012105,011053,010526011000,012000,014000,012000,011000010526,011053,012105,014211,0121050,010667,011333,012667,015333B1=(012105,014211,012105,011053,010526)©R=(012275,012901,012301,011588,010934)B2=(011000,012000,014000,012000,011000)©R=(011460,012186,012709,012186,011460),B:B=B1B2B3B4B5B6B7B8B9=012275,012901,012301,011588,010934011460,012186,012709,012186,011460012275,012901,012301,011588,010934010414,011184,011946,012882,013754012275,012901,012301,011588,010934012275,012901,012301,011588,010934010934,011589,012301,012902,012275013574,012882,011946,011184,010414011460,012186,012709,012186,0114604.2V=C©B=(012222,012593,010370,010741,011481,010741,010741,010741,010370)©B=(011890,012461,012366,011926,011357)4.3,v2(012461),v3(012366),,,5(1)(2),,(3)(4),:[1]..,1996(3):10-12.[2],,,..,2005(1):1-5.[3]MUHLBAUERKW.Pipelineriskmanagementmanual.HoustonU.S.A.:Gulfpublishingcompany,1992:1-126.[4],,,..,2004(2):15-16.[5],,..,2004(12):3-7.[6],..,2001(2):5-12.:(1956),,(11)4:,;,,,,,,3,,,,,,,:[1],,..,2004,32(12):82-84.[2]..:,2002.[3],,.SPSSForWindows.:,2005.[4],..,2001,17(11):50.[5],..,2004(5):20-23.:(1983),14PipelineTechniqueandEquipmentJul12007