Evaluation of Long-Term Performance of Geogrids by Mechanical Model

역학적 모형에 의한 지오그리드의 장기성능 평가

  • 전한용 (인하대학교 나노시스템공학부) ;
  • 정영인 (계명대학교 토목공학과)
  • Published : 2006.08.01

Abstract

Long-term performance of geogrid should be dependent on the mechanical behaviors during the service periods. Mechanical properties of geogrids are mainly influenced by not only creep deformation behaviors at the constant confining load and temperature but also stress relaxation behaviors at the constant strain and temperature as viscoelastic deformation. In this study, new concept mechanical model was suggested and applied to analyze the long-term performance of geogrid with instantaneous and asymptotic responses. Experimental results of creep and stress relaxation tests of geogrids were compared each other to verify this suggested mechanical model.

Keywords

References

  1. R. M. Koerner, 'Designing with Geosynthetics', 5th Ed., Prentice Hall, Englewood Cliffs, New Jersey, USA, 2005, pp. 1-78
  2. R. D. Holtz, B. R. Christopher, and R. R. Berg, 'Geosynthetic Engineering', BiTech Publishers Ltd., Richmond, British Columbia, Canada, 1997, pp. 1-28
  3. S. K. Shulka, 'Geosynthetics and Their Applications', Thomas Telford Publishing, London, UK, 2002, pp. 1-54
  4. H. I. Ling, V. N. Kaliakin, and D. Leshchinsky, 'Geosynthetics and Geosynthetics-Engineered Soil Structures', McMat 2005 Conference, Baton Rouge, Lousiana, US, 2005, pp. 9-124
  5. N. Dixon, D. M. Smith, J. R. Greenwood, and D. R. V. Jones, 'Geosynthetics: Protecting the Environment', Thomas Telford Publishing, London, UK, 2003, pp.93-136
  6. J. S. Thornton, 'The Relationship of Creep Curves to Rapid Loading Stress-Strain Curves for Polyester Geogrids', Proc. of Geosynthetics '99, 1999, pp. 735-744
  7. D. Leshchinsky, M. Dechasakulsom, V. N. Kaliakin, and H. I. Ling, 'Creep and Stress Relaxation of Geogrids', Geosynthetics International, 4, 5, 1997, pp. 463-479