Distribution of ground rigidity and ground model for seismic response analysis in Hualian project of large scale seismic test

T. Kokusho, K. Nishi, T. Okamoto, Y. Tanaka, T. Ueshima, K. Kudo, T. Kataoka, M. Ikemi, T. Kawai, Y. Sawada, K. Suzuki, K. Yajima, S. Higashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


An international joint research program called HLSST is proceeding. HLSST is large-scale seismic test (LSST) to investigate soil-structure interaction (SSI) during large earthquake in the field in Hualien, a high seismic region in Taiwan. A 1/4-scale model building was constructed on the gravelly soil in this site, and the backfill material of crushed stone was placed around the model plant after excavation for the construction. Also the model building and the foundation ground were extensively instrumental to monitor structure and ground response. To accurately evaluate SSI during earthquakes, geotechnical investigation and forced vibration test were performed during construction process namely before/after base excavation, after structure construction and after backfilling. And the distribution of the mechanical properties of the gravelly soil and the backfill are measured after the completion of the construction by penetration test and PS-logging etc. This paper describes the distribution and the change of the shear wave velocity (Vs) measured by the field test. Discussion is made on the effect of overburden pressure during the construction process on Vs in the neighbouring soil and, further on the numerical soil model for SSI analysis.

Original languageEnglish
Pages (from-to)297-308
Number of pages12
JournalNuclear Engineering and Design
Issue number3
Publication statusPublished - 1997 Oct
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Nuclear and High Energy Physics
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • General Materials Science
  • Nuclear Energy and Engineering


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