A geotechnical earthquake engineering investigation for soils of southern coast of Izmir Bay

In this thesis study it is aimed to investigate the dynamic behavior of soils of south coast of İzmir Bay in terms of Geotechnical Earthquake Engineering. İzmir Fault has been the most critical earthquake source for İzmir city. Thus, a project was evaluated by RADIUS team at 1999. This project includes an earthquake scenario which is due to İzmir fault. However, both the unique acceleration records which belongs to the 1977 İzmir Earthquake (M=5.3), 2003 Urla Earthquake (M=5.6) and 2005 Urla Earthquake (M=5.9), and İzmir Scenario Earthquake (M=6.5) that has been modified for İzmir Scenario Earthquake from the unique acceleration records have been used in computations.The geotechnical database has been established using various geotechnical reports that have been prepared on the investigation area.In the study, one dimensional site response analyses method has been used. The equivalent linear model and dynamic site response analyses have been performed by using the EERA computer program (Bardet et al., 2000) on 1977 Izmir Earthquake (M=5.3) 2003 Urla Earthquake (M=5.6), 2005 Urla Earthquake (M=5.9) and its scenario earthquakes.The liquefaction analyses based on the SPT-N values are made for each boring locations separately. The liquefaction risk computations of the study area are made by two different methods within upper 15 meter depth. The analyses are done for three different earthquakes and three scenario earthquakes. In the liquefaction analyses, the ?PGA? values are obtained from the site response analyses.