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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
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 1997: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1996: ¥6,900,000 (Direct Cost: ¥6,900,000)
Keywordsconstitutive model / numerical analysis / initial stress state / soil-structure interaction / soil / water coupled analysis / deformation analysis / dynamic analysis / earthquake engineering / 原位置 / 有効応力 / 三軸試験 / 動的応答 / 圧密変形履歴 / 軟弱粘土 / 上下部一体構造設計 / 初期応力
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.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 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
    • Related Report
      1997 Final Research Report Summary
  • [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
    • Related Report
      1997 Final Research Report Summary
  • [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
    • Related Report
      1997 Final Research Report Summary
  • [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
    • Related Report
      1997 Final Research Report Summary
  • [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. No575III-40. 207-217 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 太田秀樹他: "粘土の等体積一面せん断強さ" 土木学会論文集. No.582III-41. 173-182 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hideki Ohta et al.: "Seismic Deamplifying Effect of Soft Clay Layers" Proc.14th ICSMHFE. (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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