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http://dx.doi.org/10.7843/kgs.2011.27.1.065

Long-Term Behavior of Geogrid Reinforced Soil Abutment - A Numerical Investigation  

Yoo, Chung-Sik (Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.)
Jeon, Han-Yong (School of Nano Systems Engrg., Inha Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.27, no.1, 2011 , pp. 65-76 More about this Journal
Abstract
This paper presents the results of a numerical investigation on the long-term behavior of geosynthetic reinforced soil abutment. The investigation was carried out aiming at identifying the governing mechanisms of the long-term deformation of geosynthetic-reinforced soil abutment subjected to sustained loads during service life. A numerical modeling strategy was first established using the Singh-Mitchell creep model and the power law model, respectively, for the backfill and the geosyntehtic reinforcement. A parametric study on the creep properties of the backfill and the geosynthetic reinforcement was then conducted. The results indicated that a geosynthetic reinforced soil structure backfilled with marginal soil may exhibit substantial long-term deformation due to the creep effects caused by both the backfill soil and the geosynthetic reinforcement, the magnitude of which depends largely on the creep properties. This paper highlights the importance of considering the creep effect on load supporting geosynthetic reinforced soil structures when the long-term serviceability requirement is of prime importance.
Keywords
Geosynthetic reinforced structures; Long-term deformation; Finite element analysis; Sustained loading;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 김재왕 (2010) 보강토의 크리프 특성의 모델링에 관한 연구, 석사학위논문, 성균관대학교.
2 유충식, 김선빈 (2007) "하중지지 구조물로서의 보강토 옹벽 - 장기거동 측면에서의 고찰", 2007 가을 토목섬유학회 학술발표회논문집, pp.61-74.
3 유충식, 김선빈, 김영훈, 한 대희 (2007) "지속하중 및 반복하중 재하시 보강토 옹벽의 잔류변형 특성", 한국지반공학회논문집, 제23권, 제6호, pp.5-21.
4 유충식, 김선빈, 이봉원 (2005) "평면변형압축시험을 이용한 보강 토의 시간 의존적 변형 특성 연구", 한국지반공학회논문집, 제21 권, 제10호, pp.1-13.
5 Singh, A. and Mitchell, J.K. (1968) "General stress-strain-time function for soils", Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 94, No. SM 1, pp.21-46.
6 Tatsuoka, F., Kongkitkul, W, and Uchimura, T. (2004) "An Old but New Issue; Viscous Properties of Polymer Geosynthetics Reinforcement and Geosynthetic-Reinforced Soil Structures", Keynote Lecture, Proc. of the 3rd Asian Regional Conference on Geosynthetics, Seoul, 2004, Shim et al. (eds.), Korean Geosynthetic Society, pp.29-77.
7 Mitchell, J.K and Soga, K. (2005) Funndamentals of Soil Behavior, John Willey & Sons, INC. 577p.
8 Perkins, S.W.. (2000) "Constitutive modeling of geosynthetics", Geotextiles and Geomembranes, Vol 18. 273-292.   DOI   ScienceOn
9 Abu-Hejleh, N., Wang, T., Zornberg, J.G. (2000). Performance of geosynthetics-reinforced walls supporting bridge and approaching roadway structures. ASCE Geotechnical Special Publication No. 103, Advances in Transportation and Geoenvironmental Systems using Geosynthetics: 218-243.
10 Hirakawa, D., Uchimura, T., Shibata, Y. and Tatsuoka, F. (2002) "Time-dependant deformation of geosynthetics and geosyntheticreinforced soil structures", Proc. of the 7th International Conference on Geosynthetics, Nice, Vol.4, pp.1427-1430.
11 Liu, H., Wang, X., and Song, E. (2008) "Long-term behavior of GRS retaining walls with marginal backfill soils", Geotextiles and Geomembranes, Vol 27. 295-307.
12 Abaqus, Inc. (2007) ABAQUS user's manual, version 6.7. Abaqus, Inc., Pawtucket, Providence, R.I.