Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지

Large-Scale Experiments on the Wave-Induced Liquefaction of Sandbed

파랑작용에 의한 모래지반의 액상화에 관한 대형 수리모형실험

  • Kang, Yoon-Koo (Civil Works Division, Engineering & Construction Group, Samsung Corporation) ;
  • Suzuki, Kojiro (Marine Environment and Engineering Department, Port and Airport Research Institute)
  • Published : 2007.06.29
Download PDF
⟨ Previous Next ⟩

Abstract

A series of large-scale experiments were carried out in order to examine wave-induced liquefaction in a loosely packed sandbed, its afterward high densification and liquefaction by oscillatory pore pressure. The experiments were conducted in a Large Hydro-Geo Flume that can nearly solve the problems of scale effects of the sandbed, and the 50% sieve diameter of sand was 0.2 mm. The generation of residual pore pressure and its afterward high densification which had observed by Takahashi et al. (1999) in a wave flume experiment using fine sand with the size of 0.08 mm. As a result, the relative density of the sandbed after high densification was increased up to 79% and liquefaction by oscillatory pore pressure was not observed.

Keywords

References

  1. 강윤구 (2006). '파랑작용에 의한 준설토 지반의 안정성에 관한 실험적 연구', 한국해양공학회논문집, Vol 20, No 4, pp 43-49
  2. Foda, M.A., Tzang, S.Y. and Maeno, Y. (1997). 'Resonant Soil Liquefaction by Water Waves', Geo-Coast' 91, Vol 1, pp 549-554
  3. Ishihara, K. (1976). Fundamentals of Soil Dynamincs, Kashima Press, Tokyo, Japan
  4. Kang, Y.K. and Takahashi, S. (2006). 'Development of a Wave Absorbing System Using a Liquefied Sandbed', J. of Ocean Engineering and Technology, Vol 20, No 4, pp 9-16
  5. Ohneda, H., Umehara, Y., Higuchi, Y. and Irisawa, K. (1984). 'Experimental Studies on Model Clay Ground subjected to Cyclic Wave Loading', Rep. of the Port and Airport Res. Inst., Ministry of Land, Infrastructure and Transport, Japan, Vol 23, No 3, pp 127-151(in Japanese)
  6. Shimosako, K., Takahashi, S., Suzuki, K. and Kang, Y.K. (2001). 'Large-Scale Experiments in the Large Hydro-Geo Flume', Proc. of the International Workshop on Advanced Design of Maritime Structures in the 21st Century, PARI, Japan, pp 28-35
  7. Takahash, S., Suzuki, K. and Kang, Y.K. (1999). 'Experiments Analysis of Wave-Induced Liquefaction in a Fine Sandbed', Proc. of 23th Int'l. Conference on Coastal Engineering 1998, ASCE, pp 3643-3654
  8. Zen, K. (1993). 'Study on the Wave-induced Liquefaction in Seabed', Technical Note of the Port and Airport Res. Inst., Ministry of Land, Infrastructure and Transport, Japan, No No 755, pp 112 (in Japanese)
  9. Zen, K. and Yamazaki, H. (1990a). 'Mechanism of Wave-Induced Liquefaction and Densification in Seabed', Soils and Foundations, Vol 30, No 4, pp 90-104 https://doi.org/10.3208/sandf1972.30.4_90
  10. Zen, K. and Yamazaki, H. (1990b). 'Oscillatory Pore Pressure and Liquefaction in Seabed Induced by Ocean Waves', Soils and Foundations, Vol 30, No 4, pp 147-161 https://doi.org/10.3208/sandf1972.30.4_147