Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Seismic Motion Amplification Characteristics at Reclaimed Ground

매립 지반에서의 지진파 증폭 특성

  • 김용성 (한국수자원공사 수자원연구원) ;
  • 김기영 (한국수자원공사 수자원연구원) ;
  • 전제성 (한국수자원공사 수자원연구원)
  • Published : 2005.09.01
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Abstract

In this study, borehole records were analyzed to verify the amplification of seismic motion at the soft reclaimed ground before and after the main event of the 1995 Hyogoken Nambu Earthquake at Port Island, Japan. From the analysis, it was shown that the amplification of seismic motion occurred near the soft ground surface (within 30 m below) where confining stress is low. Moreover, it was found that recovery of dynamic soil stiffness at the liquefied ground began gradually 3 hours after the liquefaction and completed in 10 days, when the ground exhibited the same seismic motion characteristics as those before the liquefaction.

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References

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  1. Liquefaction Analysis at Multi-Layered Ground Considering Viscoplastic Effect of Clay vol.55, pp.5, 2013, https://doi.org/10.5389/KSAE.2013.55.5.059