Geomechanics and Engineering

  • 제20권3호
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  • Pages.243-254
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  • 2020
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Investigation of the effect of grain size on liquefaction potential of sands

  • Sonmezer, Yetis Bulent (Department of Civil Engineering, Faculty of Engineering, Kirikkale University) ;
  • Akyuz, Abdussamed (Department of Civil Engineering, Faculty of Engineering, Kirikkale University) ;
  • Kayabali, Kamil (Department of Geology Engineering, Faculty of Engineering, Ankara University)
  • 투고 : 2019.12.13
  • 심사 : 2020.01.28
  • 발행 : 2020.02.10
⟨ 이전 논문 다음 논문 ⟩

초록

Due to the permanent damage to structures during earthquakes, soil liquefaction is an important issue in geotechnical earthquake engineering that needs to be investigated. Typical examples of soil liquefaction have been observed in many earthquakes, particularly in Alaska, Niigata (1964), San Fernando (1971), Loma Prieta (1989), Kobe (1995) and Izmit (1999) earthquakes. In this study, liquefaction behavior of uniform sands of different grain sizes was investigated by using the energy-based method. For this purpose, a total of 36 deformation-controlled tests were conducted on water-saturated samples in undrained conditions by using the cyclic simple shear test method and considering the relative density, effective stress and mean grain size parameters that affect the cumulative liquefaction energy. The results showed that as the mean grain size decreases, the liquefaction potential of the sand increases. In addition, with increasing effective stress and relative density, the resistance of sand against liquefaction decreases. Multiple regression analysis was performed on the test results and separate correlations were proposed for the samples with mean grain size of 0.11-0.26 mm and for the ones with 0.45-0.85 mm. The recommended relationships were compared to the ones existing in the literature and compatible results were obtained.

키워드

과제정보

Experiments were performed in Ankara University soil mechanics laboratory. We thank Dr. Kamil Kayabali for his help.

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