Geomechanics and Engineering

  • 제3권2호
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  • Pages.83-108
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  • 2011
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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Cyclic liquefaction and pore pressure response of sand-silt mixtures

  • Dash, H.K. (Department of Civil Engineering, College of Engineering and Technology (CET), Biju Patnaik University of Technology (BPUT)) ;
  • Sitharam, T.G. (Department of Civil Engineering, Indian Institute of Science)
  • 투고 : 2010.05.12
  • 심사 : 2011.03.21
  • 발행 : 2011.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

The effect of non-plastic fines (silt) on liquefaction and pore pressure generation characteristics of saturated sands was studied through undrained stress controlled cyclic triaxial tests using cylindrical specimens of size 50 mm diameter and height 100 mm at different cyclic stress ratios and at a frequency of 0.1 Hz. The tests were carried out in the laboratory adopting various measures of sample density through various approaches namely gross void ratio approach, relative density approach, sand skeleton void ratio approach, and interfine void ratio approach. The limiting silt content and the relative density of a specimen were found to influence the undrained cyclic response of sand-silt mixtures to a great extent. Undrained cyclic response was observed to be independent of silt content at very high relative densities. However, the presence of fines significantly influenced this response of loose to medium dense specimens. Combined analyses of cyclic resistance have been done using the entire data collected from all the approaches.

키워드

참고문헌

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피인용 문헌

  1. Treatment of the High Number of Cycles as a Pseudo-Cyclic Creep by Analogy with the Soft Soil Creep Model vol.34, pp.6, 2016, https://doi.org/10.1007/s10706-016-0078-7
  2. Behavior of Sand After a High Number of Cycles Application to Shallow Foundation vol.14, pp.7, 2016, https://doi.org/10.1007/s40999-016-0050-1