Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Interpretation of Reduction Factor by Creep Deformation Test of Geogrids

지오그리드의 크리프 변형 시험에 의한 감소계수 해석

  • Jeon Han Yong (Department of Textile Engineering, Inha University) ;
  • Mok Mun Sung (Department of Textile Engineering, Inha University) ;
  • Yoo Chungsik (Department of Civil and Environmental Engineering, Sungkyunkwan University) ;
  • Kim Eui Hwa (R & D Planning Coordination, Korea Institute for Knit Industry)
  • 전한용 (인하대학교 섬유신소재공학전공) ;
  • 목문성 (성균관대학교 토목환경공학전공) ;
  • 유충식 (성균관대학교 토목환경공학전공) ;
  • 김의화 ((재)한국니트산업)
  • Published : 2005.06.01
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Abstract

Reduction factor by creep deformation test of geogrids was interpreted to determine the long-term design strength. For this, limit creep strain of geogrids was analyzed to consider the material strain property. Limit creep strain of geogrids in this study was not over $10\%$ during 10000 hours. Sherby-Dorn plots were applied to compare the real limit strain criteria (GRI Test Method GG-4). Through Sherby-Dorn plots of creep deformation behaviors of geogrids. It was seen that the limit creep strain was $11\%$. This value is higher than the existing criteria of $10\%$. From this limit creep strain 11$\%$, reduction factor from the creep deformation test was 1.45 during 10,000 hours for geogrids. Finally, creep reduction factors of $10\%\;and\;11\%$ limit creep strains were compared and analyzed to interpretate the difference of reduction factor $0.06\~0.14.$

Keywords

References

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