Liquefaction Potential Studies for
Southern Part of Tehran, Iran


S. M. Mir Mohammad Hosseini

Associate Professor of Amirkabir University of Technology,
Hafez St.,Tehran, Iran

A. Ghassemi

M.Sc. in Geological Eng.(Tectonics) & Director of Geotechnical Section-Arkan Pooyesh Consulting Engineers, Tehran, Iran

B. Arefpour

M.Sc. in Geotechnical Eng.-Managing Director
Arkan Pooyesh Consulting Engineers, Tehran, Iran


Vulnerability of Tehran against liquefaction has been the main concern of all inhabitants of the city since long times ago. The fast and great development, and the important political-social position of the city in the past decade have caused the seismic hazards of Tehran to be taken into account more than ever. The liquefaction occurrence and losing the ground strength in susceptible zones of big cities with high seismic potential, is one of the most common hazards caused heavy and considerable damages during strong ground motions. In the city of Tehran, the existing of different faults, having high seismic potential, and location of shallow water table in southern areas, are main factors, which may induce liquefaction in some future earthquakes. In this respect, different studies have been done by some institutes and individual researchers to evaluate the liquefaction potential of the city. In these studies, which have been carried out in a regular, continuous, and supplementary manner, the liquefaction potential of Tehran in Large (macro), and also small (micro) scales have been estimated and specified. In the present paper a great effort has been done to present and describe the background, process, and the outcomes of the studies, together with the results of the latest studies carried out by the author, which has completed the liquefaction potential evaluations of the city of Tehran. The microzonation maps of the city against liquefaction for different future earthquakes have been provided and presented accordingly.

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