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Landslide susceptibility analysis of Karakoram highway using analytical hierarchy process and scoops 3D

Journal of Mountain Science 2020年第7期17卷 1596-1612页

作者： barira rashid Javed IQBAL SU Li-jun Institute of Geographical Information Systems School of Civil&Environmental EngineeringNational University of Sciences and Technology(NUST)Islamabad44000Pakistan Key Laboratory of Mountain Hazards and Earth Surface Processes Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu610041China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing100101China University of Chinese Academy of Sciences Beijing100049China

Landslides are prevalent,regular,and expensive hazards in the Karakoram Highway(KKH)*** KKH connects Pakistan with China in the present China-Pakistan Economic Corridor(CPEC)*** region has not only immense economic importance but also ecological *** purpose of the study was to map the landslide-prone areas along KKH using two different techniquesAnalytical Hierarchy Process(AHP)and Scoops 3 D *** causative parameters for running AHP include the lithology,presence of thrust,land use land cover,precipitation,and Digital Elevation Model(DEM)derived variables(slope,curvature,aspect,and elevation).The AHP derived final landslide susceptibility map was classified into four zones,i.e.,low,moderate,high,and extremely *** 80%of the study area falls under the moderate(43%)and high(40%)landslide susceptible *** assess the slope stability of the study area,the Scoops 3 D model was used by integrating with the earthquake loading *** results of the limit equilibrium analysis categorized the area into four groups(low,moderate,high,and extremely high mass)of slope *** areas around Main Mantle Thrust(MMT)including Dubair,Jijal,and Kohistan regions,had high volumes of potential slope *** results from AHP and Scoops 3 D techniques were validated with the landslides inventory record of the Geological Survey of Pakistan and Google *** results from both the techniques showed similar output that coincides with the known landslides ***,Scoops 3 D provides not only susceptible zones but also the range of volume of the potential slope ***,these techniques could be used in other mountainous areas,which could help in the landslide mitigation measures.

关键词： Landslide mapping Landslide hazard zonation Analytical Hierarchy Process(AHP) Scoops 3D China Pakistan Economic Corridor(CPEC) Karakoram Highway

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