Assessment and Zoning of Liquefaction Hazard Using FUZZY-VIKOR model, Case study: Leilan Alluvial Fan in Northwest of Iran

Moazzez, Somayyeh; Mokhtari, Davoud; Rezai Moghadam, Mohammad Hossein

doi:10.22034/hyd.2023.56284.1689

Document Type : پژوهشی

Authors

¹ tabriz university

² Professor, Department of Geomorphology, Faculty of Planning and Environmental Sciences, Tabriz University, Tabriz, Iran.

https://doi.org/10.22034/hyd.2023.56284.1689

Abstract

Abstract

Alluvial fans are among the areas prone to geomorphological hazards. One of these hazards is liquefaction, which the main purpose of this research was to investigate this phenomenon in the surface of the alluvial fan. The FUZZY-VIKOR combined model and GIS technique were used to prepare the liquefaction risk potential map. The used parameters in this research were: slope, depth of underground water, type of soil and seismicity. The information layers of each of these parameters were prepared in the ArcGIS software environment. Next, the fuzzy model was used to standardize the layers. At the end, the weighting of the parameters was done by Vikor method. . The results of weighting the parameters by Vikor method showed soil and depth of underground water have obtained the highest importance coefficient with the weight of 0.442 and 0.236 respectively. The final map was prepared by overlapping the layers and multiplying the final weight of the criteria in each layer in 5 classes from very low to very high potential. The final map was prepared by overlapping the layers and multiplying the final weight of the criteria in each layer in 5 classes from very low to very high potential. The results of examining the area of each risk class showed that 0.28% of the area is in the very high class and 70% is in the high class in terms of the risk of liquefaction. Mainly, the areas with high risk potential are located in the downstream parts of the region.

Keywords

Main Subjects

Geomorphology

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Assessment and Zoning of Liquefaction Hazard Using FUZZY-VIKOR model, Case study: Leilan Alluvial Fan in Northwest of Iran

References

References

Askari, F., Gerivani, H., & Haghshenas, E. (2009). Liquefaction hazard zonation in Qeshm island and microzonation in Qeshm and Dargahan towns, Journal of Iranian Association of Engineering Geology, 2, 3& 4, 53-68.

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Karami , A., & Abdshahi , A. (2011). Ranking of Townships in Kohgiloyeh and Boyerahmad Province in terms of Development using Fuzzy Approach, Journal of Agricultural Economics Research, Volume 3, Issue 11 - Serial ,Pages 117-136.

Matkan, A, A., Shakiba, A., Seyyed Hoseinpour,A., & Nazmfar, H. ( 2009). Locating appropriate areas for burying waste using GIS (study area: Tabriz city), Environmental sciences, 6, 2, 121-132.

Rezaei Moghaddam, M H., Mokhtari, D.,& Shafieimehr, M. (2021). Zoning flood risk in the Shahr Chai Watershed in Miyaneh using Vikor model, Hydrogeomorphology, 8, 28, 19-37.

Volume 10, Issue 36 - Serial Number 36October 2023Pages 72-58

Volume 10, Issue 36 - Serial Number 36
October 2023
Pages 72-58