SafetyriskassessmentofhighwayslopeconstructionbasedonmultidimensionalcontactcloudmodelCHENZhao1,SUNJingnan2,ZHOUZilong2,SHIZhihai1(1GuangxiBeitouHighwayConstructionandInvestmentGroupCo.,Ltd.,Nanning530029,China;2SchoolofResourcesandSafetyEngineering,CentralSouthUniversity,Changsha410083,China)Abstract:Tobetteravoidthelossescausedbyhighwayslopeconstructionaccidentsinmountainousareasandobtainhierarchicalmanagementandeffectivepreventionandcontrolofrisksduringslopeconstruction,thesafetyriskassessmentindexsystemandrisklevelstandardofhighwayslopeconstructioninmountainousareasareestablishedaccordingtotheactualriskidentificationofahighwayslopeconstructioninGuangxiProvinceandthecurrentriskassessmentindexofslopeconstruction.Firstly,thesubjectiveandobjectiveweightsofeachslopeconstructionriskassessmentindexarerespectivelydeterminedbytheG1methodandtheimprovedCRITIC(CriteriaImportanceThoughIntercrieriaCorrelation)methodandthenoptimizedbyusingthegametheorytoobtaintheoptimalweightofeachriskassessmentindex.Secondly,byadoptingthesamedifferentoppositeprincipleofsetpairanalysisandthe3Encriterionofthecloudmodel,thecloudconnectiondegreeofthemultidimensionalcloudmodelisimproved.Amultidimensionalconnectioncloudmodelthatcantakeintoaccounttheuncertainty,randomness,andfuzzinessofevaluationindexesandreflectinteractionsbetweenevaluationindexesisestablished.Finally,theestablishedmodelisappliedtotheconstructionsafetyriskassessmentofsixhighwayslopeconstructioncasesinGuangxiProvince,andtheconstructionrisklevelsofsixslopesaredetermined.Meanwhile,thedeterminedconstructionrisklevelofeachslopeiscomparedtotheevaluationresultsbasedonthemultidimensionalcloudmodel,setpaircloudmodel,cloudmodel,setpairanalysismethod,andindexsystemmethod.Resultsindicatethatthemulti-dimensionalconnectioncloudmodelnotonlyensurestheconsistencyofevaluationresultsbutalsorealizesthedeterminationofslopesafetyrisktransformationtrendsintheconstructionprocess.Therefore,theestablishedsafetyriskassessmentindexsystemandrisklevelstandar...
