Geomechanics and Engineering

  • 제19권2호
  • /
  • Pages.193-199
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  • 2019
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental assessment of the effect of frozen fringe thickness on frost heave

  • Jin, Hyun Woo (Department of Extreme Environmental Research Center, KICT) ;
  • Lee, Jangguen (Department of Extreme Environmental Research Center, KICT) ;
  • Ryu, Byun Hyun (Department of Extreme Environmental Research Center, KICT) ;
  • Shin, Yunsup (Department of Offshore Energy and Offshore Geotechnics, NGI) ;
  • Jang, Young-Eun (Department of Urban and Environmental Engineering, UNIST)
  • 투고 : 2019.07.11
  • 심사 : 2019.10.10
  • 발행 : 2019.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

A frozen fringe plays a key role in frost heave development in soils. Previous studies have focused on the physical and mechanical properties of the frozen fringe, such as overall hydraulic conductivity, water content and pore pressure. It has been proposed that the thickness of the frozen fringe controls frost heave behavior, but this effect has not been thoroughly evaluated. This study used a temperature-controllable cell to investigate the impact of frozen fringe thickness on the characteristics of frost heave. A series of laboratory tests was performed with various temperature boundary conditions and specimen heights, revealing that: (1) the amount and rate of development of frost heave are dependent on the frozen fringe thickness; (2) the thicker the frozen fringe, the thinner the resulting ice lens; and (3) care must be taken when using the frost heave ratio to characterize frost heave and evaluate frost susceptibility because the frost heave ratio is not a normalized factor but a specimen height-dependent factor.

키워드

과제정보

연구 과제번호 : Development of environmental simulator and advanced construction technologies over TRL6 extreme conditions

연구 과제 주관 기관 : KICT (Korea Institute of Civil Engineering and Building Technology)

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피인용 문헌

  1. Effects of freezing and thawing on retaining wall with changes in groundwater level vol.24, pp.6, 2019, https://doi.org/10.12989/gae.2021.24.6.531