QE541 : Landslide hazard assessment along Tuskestan road
Thesis > Central Library of Shahrood University > Geosciences > MSc > 2023
Authors:
Nafiseh Shokry [Author], [Supervisor]
Abstarct: Abstract Slope failure along highways is a major problem in mountainous areas. Landslide hazard zonation maps are very efficient and planning tools for landslide disaster planning and management. The purpose of this study is to prepare a map of landslide hazard potential along the Tuskestan road using Analytical Hierarchy Process (AHP) model. The effective parameters on landslides which were used in this study are lithology, slope, slope direction, vegetation, distance from the road, distance from the stream, and distance from the fault. At the First, a map of each of these parameters is prepared and divided into three or four subgroups baxsed on its changes. Then, using hierarchical analysis, for each of these subgroups baxsed on the degree of superiority compared together a weight was assigned, so that qualitative maps are converted into quantitative maps. The result of this weighting showed that lithology and slope had the greatest effect and the distance from the fault had the least effect in landslide hazard zoning. The final weight of each laxyer was obtained by multiplying the weight of each parameter by the weight of its sub-group. Finally, these quantitative maps were integrated in the Geographic Information System (GIS) environment to obtain the final landslide hazard zonation map. Assessment of the location of the previous landslides showed that among the 7 old landslides, 6 landslides were in the range of high hazard potential and a landslide was in the relatively high hazard category, which indicates the accuracy of the landslide hazard map. The obtained hazard zoning map showed that 9.3% of this area with an area of 355 hectares is located in the category of high hazard potential of landslides. The results of this study can be used by construction planners and decision makers.
Keywords:
#Keywords: Landslide hazard zonation #Tuskestan #Geographic Information System #Analytical Hierarchy Process Keeping place: Central Library of Shahrood University
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