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Follow-up study for elucidation of damage mechanism which occurred in the Aso caldera zone and evaluation of residual seismic risk

Research Project

Project/Area Number 18H01519
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22020:Structure engineering and earthquake engineering-related
Research InstitutionNagaoka University of Technology

Principal Investigator

Ikeda Takaaki  長岡技術科学大学, 工学研究科, 教授 (40443650)

Co-Investigator(Kenkyū-buntansha) 鈴木 素之  山口大学, 大学院創成科学研究科, 教授 (00304494)
梶田 幸秀  九州大学, 工学研究院, 准教授 (10403940)
大本 照憲  熊本大学, 大学院先端科学研究部(工), 教授 (30150494)
清田 隆  東京大学, 生産技術研究所, 准教授 (70431814)
小島 由記子  長岡工業高等専門学校, 環境都市工学科, 助教 (70780203)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Keywords2016年熊本地震 / 火山灰質地盤 / 阿蘇カルデラ / 地震動 / 災害履歴 / 地盤災害 / 震源放射特性 / 火砕流堆積地盤 / 2次元有効応力解析 / 内陸地殻内地震 / 地震応答解析
Outline of Final Research Achievements

Characteristics ground motions in Aso caldera were cleared by nonlinear dynamic response analysis using soil parameters based on survey data. We developed dynamic ring shear test equipment and established static shear test method for analyzing stress strain characteristics of pyroclastic flow deposit ground. Two-dimensional effective stress analysis was carried out on two bridges, Taisho Bridge and Kuruma-gaeri Bridge, which were damaged by earthquakes to investigate the damage mechanism caused by pyroclastic flow deposition. For river and river structure damage, a rectangular-shaped weir opening was installed to enhance the flow of riverbed material, and the three-dimensional structure of riverbed morphology and flow in static and dynamic equilibrium riverbeds downstream of the diving weir was clarified.

Academic Significance and Societal Importance of the Research Achievements

2016年熊本地震は震度7が2回発生するとともに,規模の大きい余震が続発し火砕流堆積地盤が卓越した震源周辺域では橋梁部の被害など,社会生活に影響を大きい被害が発生した.我が国には熊本地震の震源域と同様の地盤条件や同様の地震危険度を有する地域が多く,熊本地震での被害原因やメカニズムを明らかにすることは今後の地震防災対策に大きく貢献することが予測される.本研究では地震発生後に行われた様々な調査結果を活用することにより,効率的・効果的な検討が可能なことを明らかにしたため,今後の災害における追跡調査の方向性を示すことができたと考えられる.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (30 results)

All 2021 2020 2019 2018

All Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (19 results) (of which Int'l Joint Research: 10 results)

  • [Journal Article] 近年の地震で発生した地すべり・斜面崩壊の危険因子に関する考察2021

    • Author(s)
      上鵜瀬一真, 鈴木素之
    • Journal Title

      自然災害研究協議会中国地区部会研究論文集

      Volume: 7 Pages: 39-42

    • Related Report
      2020 Annual Research Report
    • Open Access
  • [Journal Article] 開口部を有する堰が河床変動に与える影響2020

    • Author(s)
      宇根拓孝、大本照憲、蔵永一輝
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 76 Pages: 1195-1200

    • NAID

      130008122507

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EFFECTS OF SUBMERGED WEIR WITH AN OPENING ON BEDFORM AND FLOW STRUCTURE UNDER LIVE-BED CONDITIONS2020

    • Author(s)
      Hirotaka Une, Terunori Ohmoto and Kazuki Kuranaga
    • Journal Title

      The 22nd Congress of International Association for Hydro Environment Engineering and Research(IAHR) and Asia Pacific Division(APD)

      Volume: 3-1-5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2-dimensional effective stress analysis for a damaged bridge located in the caldera of Mt.Aso in 2016 Kumamoto Earthquake2020

    • Author(s)
      Yukihide Kajita, Taiji Mazda, Kunihiko Uno and Takeshi Kitahara
    • Journal Title

      Proceedings of Resilient Technologies for Sustainable Infrastructures, IABSE Congress

      Volume: - Pages: 1142-1149

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Damage investigation of 2019 the Off the Yamagata Prefecture earthquake, Mj6.72020

    • Author(s)
      Yukiko KOJIMA, Takaaki IKEDA, Takumi MATSUMOTO and Atsuya MINAGAWA
    • Journal Title

      Journal of Disaster FactSheets

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study on ground subsidence of volcanic soil caused by the Kumamoto Earthquake2019

    • Author(s)
      加賀美 侑希、清田 隆、池田 隆明、ムハマッド ウマル、片桐 俊彦
    • Journal Title

      SEISAN KENKYU

      Volume: 71 Issue: 6 Pages: 1071-1074

    • DOI

      10.11188/seisankenkyu.71.1071

    • NAID

      130007756601

    • ISSN
      0037-105X, 1881-2058
    • Year and Date
      2019-11-01
    • Related Report
      2019 Annual Research Report
  • [Journal Article] Effects of weir with an opening on bed configuration and flow structure2019

    • Author(s)
      Terunori Ohmoto and Hirotaka Une
    • Journal Title

      38th IAHR World Congress

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Source modeling of the mid-scale crustal earthquake by forward modeling using the empirical Green’s function method2019

    • Author(s)
      Takaaki Ikeda and Yukiko Kojima
    • Journal Title

      Proceedings of the 2019 Rock Dynamics Summit (RDS 2019)

      Volume: - Pages: 279-286

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ESTIMATION OF DYNAMIC GROUND BEHAVIOR AT NEAR SOURCE AREA<b> </b>DURING THE 2016 KUMAMOTO EARTHQUAKE2018

    • Author(s)
      根本 峻、池田 隆明、清田 隆
    • Journal Title

      SEISAN KENKYU

      Volume: 70 Issue: 6 Pages: 429-432

    • DOI

      10.11188/seisankenkyu.70.429

    • NAID

      130007537906

    • ISSN
      0037-105X, 1881-2058
    • Year and Date
      2018-11-01
    • Related Report
      2018 Annual Research Report
  • [Journal Article] The Takanodai Landslide, Kumamoto, Japan: Insights from Post-Earthquake Field Observations, Laboratory Tests, and Numerical Analyses2018

    • Author(s)
      Chiaro Gabriele、Umar Mohammed、Kiyota Takashi、Massey Christopher
    • Journal Title

      Proc. of 5th Geotechnical Earthquake Engineering and Soil Dynamics Conference

      Volume: - Pages: 98-111

    • DOI

      10.1061/9780784481486.011

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] EFFECTS OF OBLIQUE WEIR WITH AN OPENING ON RIVER BED AND FLOW STRUCTURE2018

    • Author(s)
      UNE Hirotaka、OHMOTO Terunori
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

      Volume: 74 Issue: 5 Pages: I_829-I_834

    • DOI

      10.2208/jscejhe.74.5_I_829

    • NAID

      130007757878

    • ISSN
      2185-467X
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 近年の地震地すべりにおける発生因子に関する考察2021

    • Author(s)
      上鵜瀬一真, 鈴木素之
    • Organizer
      第73回土木学会中国支部研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2019年山形県沖の地震の震源のモデル化と強震動シミュレーション2019

    • Author(s)
      池田隆明,倉橋奨,宮腰研,染井一寛
    • Organizer
      第39回地震工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2019年山形県沖の地震(Mj6.7)における震源近傍域の被害調査2019

    • Author(s)
      小島由記子,池田隆明,松本拓未,皆川敦也
    • Organizer
      第39回地震工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Source modeling and ground motion simulation of the mid-scale crustal earthquake2019

    • Author(s)
      Takaaki Ikeda
    • Organizer
      The 18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 強震動の観測記録に基づく周期特性を考慮した2方向地震動の方向性分析2019

    • Author(s)
      井上和真,齋藤渓太,梅山雄多,五十嵐晃,池田隆明
    • Organizer
      第39回地震工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2016年熊本地震における秋田配水場周辺地盤の地震時挙動の推定2019

    • Author(s)
      根本峻,池田隆明
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 地盤条件が構造物被害に及ぼす影響に関する研究2019

    • Author(s)
      鈴木陽貴,池田隆明,小島由記子
    • Organizer
      第37回土木学会関東支部新潟会研究調査発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 地震ハザード評価のための表層地盤の増幅特性に関する研究2019

    • Author(s)
      皆川敦也,池田隆明,郷右近英臣,松本拓未
    • Organizer
      第37回土木学会関東支部新潟会研究調査発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Evaluation of directionality considering periodic characteristics for strong motion observation records, International Conference on Science of Technology Innovation2019

    • Author(s)
      Saito, K., Inoue, K. and Ikeda
    • Organizer
      4th STI-Gigaku 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on amplification factor of maximum acceleration for seismic hazard assessment2019

    • Author(s)
      Minagawa, A., T., Ikeda, T., Gokon, H., Matsumoto, T. and Tun Naing
    • Organizer
      The 18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of surface ground characteristics on structural damage2019

    • Author(s)
      Suzuki, H., Ikeda, T. and Kojima, Y.
    • Organizer
      The 18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Turbulent structure in open channel with longitudinally continuous side cavities2019

    • Author(s)
      Takayuki Tanaka, Terunori Ohmoto
    • Organizer
      38th IAHR World Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Hyper-Concentrated Sediment on Flow Resistance and Flow Structure in an Open Channel with Square Ribs2019

    • Author(s)
      K.Adachi, T.Ohmoto, and H. Kondo
    • Organizer
      14th International Symposium on River Sedimentation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Monotonic and cyclic undrained behavior of Kumamoto Aso pumice soil by triaxial and torsional shear tests2018

    • Author(s)
      Muhammad Umar, Gabriele Chiaro, Takashi Kiyota and Hirotoshi Miyamoto
    • Organizer
      16th European Conference on Earthquake Engineering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 経験的グリーン関数法を用いた震源のモデル化 - 2018年島根県西部の地震(Mj6.1) -2018

    • Author(s)
      池田隆明,染井一寛,倉橋奨,宮腰研
    • Organizer
      第38回地震工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 数値解析法を用いた熊本地震における地盤の地震時挙動に関する解析的研究2018

    • Author(s)
      根本峻,池田隆明
    • Organizer
      第36回土木学会関東支部新潟会研究調査発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Evaluation of dynamic ground behavior at near source area during the 2016 Kumamoto earthquake by numerical analysis approach2018

    • Author(s)
      Shun Nemoto and Takaaki Ikeda
    • Organizer
      The 7th International GIGAKU Conference in Nagaoka
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Weir with an Opening on Bed Morphology and Flow Patterns2018

    • Author(s)
      Terunori OHMOTO and Hirotaka UNE
    • Organizer
      7th International Symposium on Hydraulic Structures (ISHS2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of a partial dam removal on river bed topography and flow fields2018

    • Author(s)
      Terunori OHMOTO, Kanji ADACHI, Shakila KAYUM and Ryuichi HIRAKAWA
    • Organizer
      12th International Symposium on Ecohydraulics (ISE) 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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