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2024 Vol.25, Issue 7 Preview Page
Correlation Analysis of Empirical Frost Heave Prediction Models

경험적 동상 예측 모델 간의 상관관계 분석

Jangguen Lee1*
,
Hyunwoo Jin2
,
Zheng Gong3
이 장근1*
,
진 현우2
,
공 정3
1Research Fellow, Department of Future & Smart Construction Engineering, Korea Institute of Civil Engineering and Building Technology (KICT), University of Science & Technology
2Senior Researcher, Department of Future & Smart Construction Research, Korea Institute of Civil Engineering and Building Technology (KICT)
3Ph.D. Candidate, Korea Institute of Civil Engineering and Building Technology (KICT), University of Science & Technology
*Corresponding Author
1 July 2024. pp. 29-34
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Abstract

Frost heave is one of the significant engineering characteristics of frozen ground and causes severe damages on geo-structures. Although thermo-hydro coupled analyses have been developed to predict frost heave behavior, these analyses involve excessive input parameters and have primarily been validated for frost heave in clayey soils. Frost heave mainly occurs in silty soils, which have relatively higher permeability compared to clayey soils, necessitating careful attention. This study introduces empirical models and verifies their reliability for silty soils. By using the validated model, the correlation of key input parameters is derived, which is expected to enhance the applicability of thermal-mechanical analysis for geo-structures on frozen ground in the future.

Keywords
Frozen ground
Frost heave
Model
Reliability
Correlation

동토지반의 중요한 공학적 특성 중 하나인 동상으로 인해 다양한 피해가 발생한다. 동상 거동을 예측하고자 열-수리 연계 해석이 개발되었으나, 입력변수가 과도하고 주로 점토성 토양의 동상에 대한 신뢰성 평가만 수행되었다. 동상은 점토성 토양과 비교하여 상대적으로 투수계수가 높은 실트질 토양에서 주로 발생하고 있어 주의가 필요하다. 본 연구에서는 비교적 간단하게 동상 거동 예측이 가능한 경험적 모델을 소개하고 실트질 토양을 대상으로 모델의 신뢰성을 검증하였다. 검증이 완료된 모델을 이용하여 핵심 입력변수의 상관관계를 제시하였다. 본 연구에서 도출된 경험적 모델의 상관관계는 향후 동토지반을 대상으로 지반구조물의 열-역학 해석에 활용성이 높을 것으로 예상된다.

키워드
동토지반
동상
모델
신뢰성
상관관계
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Information
  • Publisher :Korean Geo-Environmental Society
  • Publisher(Ko) :한국지반환경공학회
  • Journal Title :Journal of the Korean Geo-Environmental Society
  • Journal Title(Ko) :한국지반환경공학회 논문집
  • Volume : 25
  • No :7
  • Pages :29-34
  • Received Date : 2024-06-11
  • Revised Date : 2024-06-12
  • Accepted Date : 2024-06-24
  • DOI :https://doi.org/10.14481/jkges.2024.25.7.29
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