Investigation of the soil behaviour of Fethiye District, Mesudiye, Muğla, by one-dimensional equivalent linear analysis method

Arabian Journal of Geosciences - Tập 15 - Trang 1-14 - 2022
Mehmet Uğur Yılmazoğlu1, Gökçe Çiçek İnce2
1Civil Engineering Department, Faculty of Engineering and Architecture, Kastamonu Univ., Kastamonu, Turkey
2Construction Technology Program, Muğla Higher Education Academy, Muğla Sıtkı Koçman Univ, Mugla, Turkey

Tóm tắt

Soil behaviour during earthquakes is just as important as the prediction of earthquakes. Seismic waves alter the soil strata that they traverse during earthquakes, and the strata may also change the properties of seismic waves. Conditions such as the type, stratification status, and combinations of the strata can also create different effects in the seismic wave. With dynamic soil behaviour analysis, the effects of earthquake ground motion and ground performance on general performance can be obtained by the change in acceleration parameters. In this study, one-dimensional dynamic analysis was carried out using the EERA (Bardet et al., EERA: A computer program for equivalentlinear earthquake site response analyses of layered soil deposits, University of Southern California, Los Angeles, 2000) program by using the drilling information of the Karaböğürtlen formation, which consists of alluvium, coastal sediment and siltstone, claystone, and sandstone units in the selected region. For this purpose, idealised soil profiles were created by using the drilling information from the region of Mesudiye in the province of Muğla, district of Datça. Acceleration values, which varied in depth and surface acceleration values, were obtained as a result of one-dimensional analysis using national and international characteristic earthquake acceleration records selected from the literature. Since the dynamic and kinematic structure related to the deformation in the region is extremely complex and there is no generally accepted model, different mechanism situations have been examined using the characteristic earthquake records that have happened in the world. According to the results, similar results were obtained in earthquakes with the same mechanism; it was observed that the acceleration values which were occurred in the earthquake records with different mechanisms had been changed. Moreover, it was calculated that the greatest amplification is in beach sediments composed of sand and clay units, and the highest amplification value was in the Parkfield earthquake, which increased the peak acceleration value by six times.

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Arabian Journal of Geosciences

Tập 15

1-14

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