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1997 Fiscal Year Final Research Report Summary

Role of initial stress states in the numerical simulation of subsoil-structure interaction during earthquakes

Research Project

Project/Area Number 08455220
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geotechnical engineering
Research InstitutionKanazawa University

Principal Investigator

OHTA Hideki  Kanazawa University, Department of Civil Eigineering, Professor, 工学部, 教授 (80026187)

Co-Investigator(Kenkyū-buntansha) MIYAJIMA Masakatsu  Kanazawa University, Department of Civil Eigineering, Associate Professor, 工学部, 助教授 (70143881)
KITAURA Masaru  Kanazawa University, Department of Civil Eigineering, Professor, 工学部, 教授 (70026269)
DEMURA Yoshinori  Ishikawa National College of Technology, Department of Civil Engineering, Profes, 教授 (90042928)
IIZUKA Atsushi  Kobe University, Department of Civil Engineering, Associate Professor, 工学部, 助教授 (40184361)
Project Period (FY) 1996 – 1997
Keywordsconstitutive model / numerical analysis / initial stress state / soil-structure interaction / soil / water coupled analysis / deformation analysis / dynamic analysis / earthquake engineering
Research Abstract

A series of numerical simulations of the subsoil-structure interaction observed at a few sites during the Kobe earthquake were successfully carried resulting in the initial stress states before the earthquake, behavior during the earthquake and the time dependent behavior after the earthquake of the subsoil-structure system. These results were compared with the data obtained from the in-situ and laboratory tests on the undisturbed samples taken from the sites. The importance of the initial stress states in the ground is emphasized in the numerical analysis designed based on the constitutive model developed by the head investigator. The degree of influence of the initial stress states in the grounds on the numerical results were quantitatively estimated making it possible to systematically combine the static and dynamic analyzes which have been separately developed in the past history of static and dynamic research fields.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 太田秀樹他: "土/水連成要素解析に基づいた限界盛土高さ推定法" 土木学会論文集. No.575III-40. 207-217 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 太田秀樹他: "粘土の等体積-面せん断強さ" 土木学会論文集. No.582III-41. 173-182 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Kobayashi, A.Iizuka, H.Ohta: "Estimate method of ultimate embankment height on soil clayy ground based on soil/water coupled finit element computations" Journal of JSCE,Division of Geotechnical Engineering. No.575/III-40. 207-217 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Morikawa, Y.Furuta, A.Iizuka, H.Ohta: "Constant volume shaer strength of clayy soils." Journal of JSCE,Division of Geotechnical Engineering. No.582/III-41. 173-182 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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