Cyclic and post-cyclic monotonic behavior of Adapazari soils |
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| Institution: | 1. Engineering Faculty, Department of Civil Engineering, Erciyes University, Turkey;2. Civil Engineering Faculty, Department of Civil Engineering, Istanbul Technical University, Turkey;1. Department of Civil Engineering, National Chung Hsing University, Taiwan;2. URS Corporation, 1333 Broadway, Suite 800, Oakland, CA 94612, USA;1. Department of Civil Engineering, Faculty of Engineering, University of Hormozgan, Bandar Abbas, Iran;2. Geotechnical and Hydrogeological Engineering Research Group (GHERG), Federation University Australia, Gippsland Campus, Victoria, Australia;3. Department of Civil Engineering, Faculty of Engineering, University of Hormozgan, Bandar Abbas, Iran;1. Department of Civil Engineering, Yeditepe University, ?stanbul, Turkey;2. 5A Mühendislik, ?stanbul, Turkey;3. MAG Mühendislik, ?stanbul, Turkey;4. Department of Civil Engineering, ?stanbul Technical University, ?stanbul, Turkey;1. Department of Civil and Environmental Engineering, California State University, Fullerton, 800 N. State College Blvd., E-318, Fullerton, CA 92831, United States;2. Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, 200 Patton Hall, Blacksburg, VA 24061, United States;3. Department of Civil and Environmental Engineering, California State University, Fullerton, 800 N. State College Blvd., E-419, Fullerton, CA 92831, United States |
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| Abstract: | The August 17, 1999 Kocaeli earthquake affected the city of Adapazari, which is located in the northwest of Turkey, with severe liquefaction and bearing capacity failures causing tilting of buildings, excessive settlements and lateral displacements. To understand the stress–strain behavior and pore pressure behavior of undisturbed soils during the earthquake, the cyclic and post-cyclic shear strength tests have been conducted on soil samples obtained from Adapazari in a cyclic triaxial test system within the scope of this research. Cyclic tests have been conducted under stress controlled and undrained conditions. Post-cyclic monotonic tests have been conducted following cyclic tests. The strength curves obtained in the experiments showed that the dynamic resistance of silty sand was found to be 45% lower than those of high plasticity soils (MH). The strength of clayey soils with the plasticity index of PI=15–16% was lower compared to the strength of high plasticity soils. Also, it was observed that silty sand soils had the lowest strength. The dynamic strength of the soils increased with the increase in plasticity. |
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| Keywords: | Dynamic triaxial test Cyclic behavior Post-cyclic monotonic behavior Adapazari soils Kocaeli earthquake |
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