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A proposal of estimation method of incident wave to base rock considering effect of multidimensional wave propagation and nonlinearity of surface ground

Research Project

Project/Area Number 16K14303
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Geotechnical engineering
Research InstitutionNagoya University

Principal Investigator

YAMADA Shotaro  名古屋大学, 工学研究科, 准教授 (70346815)

Co-Investigator(Kenkyū-buntansha) 浅岡 顕  公益財団法人地震予知総合研究振興会, その他部局等, 副首席主任研究員 (50093175)
野田 利弘  名古屋大学, 減災連携研究センター, 教授 (80262872)
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords地震波 / 非線形 / 多次元波動伝播 / 弾塑性解析 / 水~土連成解析 / 粘性境界条件 / 材料非線形性 / 基盤 / 地震工学 / 地盤工学 / 表層地盤 / 非線形性 / 直達波
Outline of Final Research Achievements

In this study, new utilization of the viscous boundary condition that enables to estimate an upward wave in bedrock from an observational record in consideration of non-linearity and the influence of multi-dimensional wave propagation (refraction, transmission, reflection) by using a non-linear finite element code for soil was proposed. We verified that the proposed method behaves properly under a condition in which liquefaction phenomena and multi-dimensional wave propagation occurred.
In order to adopt to real problems, the observed record at the rock base of the Aratozawa dam bottom in the 2008 Iwate-Miyagi Nairiku Earthquake was picked up. We successfully reproduced the properties of the above-mentioned records and estimated the upward transmitting wave at the bedrock on the same point and estimated the upward transmitting wave in the bed-rock by using the proposed method. The results obtained in this study must raise a question about the future design of structures.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (9 results)

All 2018 2017 2016

All Presentation (9 results) (of which Invited: 1 results)

  • [Presentation] 水~土連成解析を用いた2008年岩手・宮城内陸地震における荒砥沢ダムにおける基盤上昇波の推定2018

    • Author(s)
      山田正太郎, 野田利弘, 浅岡顕, 澤田義博
    • Organizer
      日本地球惑星科学連合大会2018年大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 水~土連成解析を用いたロックフィルダムの地震応答解析および基盤上昇波の推定2018

    • Author(s)
      山田正太郎, 野田利弘, 浅岡顕, 澤田義博, 阪口崇博
    • Organizer
      第53回地盤工学研究発表会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 表層地盤の非線形性および多次元波動伝播の影響を考慮した基盤入射波の推定法の提案2017

    • Author(s)
      山田正太郎, 野田利弘, 浅岡顕, 澤田義博, 永田優
    • Organizer
      第52回地盤工学研究発表会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 粘性境界条件を適用した水~土連成弾塑性有限変形解析による基盤入射波の推定法の提案2017

    • Author(s)
      山田正太郎, 野田利弘, 浅岡顕
    • Organizer
      第64回理論応用力学講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 水~土連成弾塑性有限変形解析による表層地盤の非線形性と多次元波動伝播の影響を考慮した基盤入射波の推定2017

    • Author(s)
      山田正太郎
    • Organizer
      長岡平野西縁断層帯の地震活動性に関する調査研究
    • Place of Presentation
      東京都
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 表層地盤の多次元非線形性を考慮した基盤上昇波推定法2016

    • Author(s)
      野田利弘, 山田正太郎, 浅岡顕, 澤田義博
    • Organizer
      日本地震学会2016年度秋季大会
    • Place of Presentation
      愛知県名古屋市
    • Year and Date
      2016-10-25
    • Related Report
      2016 Research-status Report
  • [Presentation] 液状化砂地盤のスパイク状加速度応答の数値解析2016

    • Author(s)
      山田正太郎, 野田利弘, 浅岡顕
    • Organizer
      日本地震学会2016年度秋季大会
    • Place of Presentation
      愛知県名古屋市
    • Year and Date
      2016-10-25
    • Related Report
      2016 Research-status Report
  • [Presentation] 複合負荷弾塑性構成式を搭載した水~土骨格有限変形解析コードによる土構造物-地盤系の地震応答解析2016

    • Author(s)
      山田正太郎, 野田利弘, 高稲敏浩, 浅岡顕
    • Organizer
      第51回地盤工学研究発表会
    • Place of Presentation
      岡山県岡山市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 表層地盤の力学的非線形性および複雑な幾何学的形状を考慮した工学的基盤への入射波の推定法の提案2016

    • Author(s)
      山田正太郎, 野田利弘, 浅岡顕
    • Organizer
      日本地球惑星科学連合
    • Place of Presentation
      千葉県千葉市
    • Year and Date
      2016-05-22
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2019-03-29  

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