基于层次分析法在滑坡危险性评估中的应用

基于层次分析法在滑坡危险性评估中的应用AbstractLandslide is one of the most common natural disasters in the world. Lands

基于层次分析法在滑坡危险性评估中的应用 Abstract Landslideisoneofthemostcommonnaturaldisastersinthe world.Landslideriskassessmentisanimportanttaskfordisaster preventionandmitigation.AHP(AnalyticalHierarchyProcess)isa widelyusedmethodtoanalyzedecision-makingproblemswith multiplecriteria.ThispaperdiscussestheapplicationofAHPin landslideriskassessment,includingtheselectionofevaluation criteria,theestablishmentofhierarchicalstructure,thecreationof pairwisecomparisonmatrix,andthecalculationofweights.Acase studyispresentedtodemonstratethefeasibilityandeffectiveness ofAHPinlandslideriskassessment. Introduction Landslideisageologicaleventthatresultsinthesudden movementofsoil,rock,andotherdebrisdownaslope.Itcan causegreatdamagetohumanlifeandproperty.Landsliderisk assessmentisacrucialtaskindisasterpreventionandmitigation. Thepurposeoflandslideriskassessmentistoidentifythe potentialhazards,evaluatethelevelofrisk,andsuggestpossible measurestoreducetherisk.Becausetheevaluationoflandslide riskinvolvesmulti-criteriadecision-makingproblems,AHPisan appropriatemethodtouse. TheAnalyticHierarchyProcess(AHP) AHPisamulti-criteriadecision-makingmethoddevelopedby ThomasSaatyinthelate1970s.Itisamathematicaltechniquefor analyzingcomplexdecisionproblemswithmultiplecriteriaand alternatives.AHPinvolvesthefollowingsteps: 1.Identificationoftheproblemandthecriteriatobeusedfor theevaluation. 2.Creationofahierarchicalstructuretoorganizethecriteria, alternatives,andsub-criteria. 3.Pairwisecomparisonofthecriteriaandalternativesto obtaintheirrelativeweights. 4.Calculationoftheoverallscoresofthealternativesbased onweightedcriteria.