Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Interpretation of Limit Creep Strain of Geogrids by Sherby-Dorm Plots

Sherby-Dorm Plots에 의한 지오그리드의 한계크리프변형률 해석

  • Jeon, Han-Yong (Division of Nano Systems Eng., Inha University) ;
  • Mok, Mun-Sung (Dept. of Textile Eng., Chonnam National University Graduate School) ;
  • Jin, Yong-Bum (Dept. of Textile Eng., Inha University Graduate School) ;
  • Lim, Ji-Hye (Dept. of Textile Eng., Inha University Graduate School)
  • 전한용 (인하대학교 나노시스템공학부) ;
  • 목문성 (전남대학교 대학원 섬유공학과) ;
  • 진용범 (인하대학교 대학원 섬유공학과) ;
  • 임지혜 (인하대학교 대학원 섬유공학과)
  • Published : 2005.03.25
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Abstract

New procedure for evaluation of creep reduction factor using performance limit strain concept was introduced and confirmed through the creep test results. To determine the performance limit strain of the textile geogrid used in this study, the Sherby-Dorm Plots were applied and the results were compared with the results that applied existed limit strain criteria (GRI test method GG-4). The limit creep strain of the geogrid samples that determined by using the Sherby-Dorm Plots were all 11%. This value is more higher than the existed criteria as 10%. From this 11% limit strain the creep reduction factors were calculated at 100,000 hours design. It was resulted in 1.45 for all of the geogrid samples(8t/m, 10t/m). Finally, when it was compared with the creep reduction factors that using 10% criteria, there were some decrease of reduction factor values about $0.06{\sim}0.14$.

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