Liquefaction analysis from seismic velocities and determination of lagoon limits Kumluca/Antalya example |
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| Institution: | 1. Süleyman Demirel University, Engineering Faculty, Department of Geophysical Engineering, Isparta, Turkey;2. General Directorate of State Hydraulic Works, 13th Regional Directorate, 7098 Antalya, Turkey;1. ISTerre, CNRS, BP 53, 38041 Grenoble Cedex 9, France;2. ISTerre, Univ. de Grenoble Alpes, BP 53, 38041 Grenoble Cedex 9, France;3. ISTerre, IFSTTAR, BP 53, 38041 Grenoble Cedex 9, France;4. Seismological Laboratory, California Institute of Technology, Pasadena, CA, USA;5. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA;6. GNS Science, Lower Hutt 5040, New Zealand |
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| Abstract: | This study analyzes liquefaction in the Kumluca/Antalya residential area and surroundings, using seismic velocities of soil deposits and the predominant period of the earthquake wave. The liquefaction analysis calculates shear–stress ratio, shear–resistance ratio and safety factor. Shear wave velocity used in liquefaction analysis was determined through surface waves. Moreover, the dynamic parameters of the ground were calculated through seismic velocities. Distributions of groundwater, shear wave velocity, adjusted shear wave velocity, predominant period of vibration, soil amplification and ground acceleration of the research area were mapped. In addition, the liquefied and non-liquefied areas as a result of liquefaction analysis in Kumluca were determined and presented as maps. Examining these maps, among all these maps, the limits of the lagoon sandbar and the old lake area were determined using only the liquefaction map. |
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