Updated on 2022/03/31

写真a

 
NAKAI, Kentaro
 
Organization
Graduate School of Engineering Civil and Environmental Engineering 3 Associate professor
Disaster Mitigation Research Center Associate professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Architecture
Title
Associate professor
Contact information
メールアドレス

Degree 1

  1. 博士(工学) ( 2005.3   名古屋大学 ) 

Research Interests 5

  1. Seismic response analysis of soil-structure interaction system

  2. Unified interpretation and elasto-plastic modeling of various soil materials from sand to clay

  3. static and dynamic laboratory testing of various soil material

  4. Creation of pseudo-natural sedimentary soils with artificially adding aging effects

  5. Effect of stratigraphic irregularity on subsurface seismic behavior

Research Areas 3

  1. Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Geotechnical engineering  / Soil mechanics

  2. Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Geotechnical engineering  / Geomaterial engineering

  3. Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Geotechnical engineering  / Disaster prevention engineering

Current Research Project and SDGs 5

  1. Interpretation of dynamic properties of soft clayey material

  2. Effect of geological irregularities on subsurface seismic damage

  3. Seismic response analyses of soil-structure interaction systems and considerations for appropriate countermeasures

  4. Elasto-plastic modelling of various soil materials from clay to sand including intermediate material and problematic soil

  5. Creation of pseudo-natural sedimentary soils with artificially adding aging effects

Research History 3

  1. Nagoya University   Graduate School of Engineering, Civil and Environmental Engineering   Associate professor

    2011.4

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    Country:Japan

  2. Nagoya University   Graduate School of Engineering, Civil and Environmental Engineering   Assistant Professor

    2007.4 - 2011.3

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    Country:Japan

  3. Nagoya University   Graduate School of Engineering, Civil and Environmental Engineering   Assistant

    2005.5 - 2007.3

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    Country:Japan

Education 3

  1. Nagoya University   Graduate School, Division of Engineering   Department of Civil Engineering

    2002.4 - 2005.3

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    Country: Japan

  2. Nagoya University   Graduate School of Engineering   Department of Civil Engineering

    2000.4 - 2002.3

  3. Nagoya University   Faculty of Engineering   Civil Engineering

    1996.4 - 2000.3

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    Country: Japan

Professional Memberships 8

  1. 地盤工学会

  2. 土木学会

  3. 日本地震学会

  4. 計算工学会

  5. 日本地震工学会

  6. 地球惑星科学連合

  7. 日本材料学会

  8. International Press-in Association

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Committee Memberships 27

  1. 第 8 回 ICEGE(国際地盤地震工学会議)実行委員会   委員  

    2022.4   

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    Committee type:Academic society

  2. 第2回環境に配慮した持続可能な建設技術に関する国際会議   国際アドバイザリー委員  

    2022.3   

  3. 岡崎市社会私費温整備総合交付金評価委員会   委員  

    2021.6   

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    Committee type:Municipal

  4. 日本計算工学会   代表会員  

    2020.4   

  5. 地震調査研究推進本部 防災対策に資する南海トラフ地震調査研究プロジェクト,   委員  

    2020.4   

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    Committee type:Government

  6. 土木学会 調査研究部門 地震工学委員会   委員  

    2019.12   

  7. 国土交通省中部地方整備局入札監視委員会   委員  

    2019.10   

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    Committee type:Municipal

  8. 中部地域の港湾・海岸における中長期技術課題検討委員会   委員  

    2018.11   

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    Committee type:Municipal

  9. 国際圧入学会 PFS工法の再評価と耐震設計に関する技術委員会   委員  

    2017.4 - 2020.3   

  10. 豊田市廃棄物処理施設等審査会   委員  

    2017.1   

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    Committee type:Municipal

  11. 土木学会 地盤工学委員会   委員  

    2016.5 - 2020.3   

  12. 地盤工学会関東支部 極大地震時における表層地盤の強い非線形現象とその影響に関する研究委員会   委員  

    2015.4 - 2018.3   

  13. 土木学会 応用力学委員会 V&V小委員会   幹事  

    2014.4   

  14. 地盤工学会中部支部 調査・設計・施工技術報告会部会   委員  

    2014.4   

  15. 地盤工学会中部支部 南海トラフ巨大地震中部地域地盤災害研究委員会   幹事長  

    2014.4 - 2017.3   

  16. 地震調査研究推進本部 南海トラフ広域地震防災研究プロジェクト   委員  

    2013.4 - 2019.3   

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    Committee type:Government

  17. 地盤工学会 アカデミックロードマップと発展史・人物史第4小委員会(数値解析)   委員  

    2012.10 - 2013.3   

  18. 土木学会 論文編集委員会C分冊編集小委員会   委員  

    2012.6 - 2014.6   

  19. 地盤工学会関東支部 東北地方太平洋沖地震による関東地方の地盤液状化現象の実態解明委員会   委員  

    2011.10 - 2014.3   

  20. 土木学会 応用力学委員会    委員  

    2011.7   

  21. 土木学会 応用力学委員会    幹事  

    2011.7 - 2016.5   

  22. 土木学会 応用力学委員会 応用力学ウィキペディア小委員会   委員  

    2010.4 - 2016.3   

  23. 地盤工学会「論文報告集(Soils and Foundations)編集委員会」   委員  

    2009.5 - 2012.5   

  24. 地盤工学会中部支部   幹事  

    2007.4   

  25. 地盤工学会中部支部 若手技術者部会   部会長  

    2007.4 - 2011.3   

  26. 地盤工学会中部支部 セミナー部会   委員  

    2005.4   

  27. 地盤工学会中部支部 若手技術者部会   委員  

    2005.4   

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Awards 11

  1. The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology, Research Category

    2010.4   Minister of Education  

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    Country:Japan

  2. 地盤工学会研究奨励賞

    2006   地盤工学会  

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    Country:Japan

  3. 地盤工学会国際会議若手優秀論文賞

    2005   地盤工学会  

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    Country:Japan

  4. 事業企画賞

    2018.6   地盤工学会   南海トラフ巨大地震に対する市民のための防災・減災シンポジウム

    地盤工学会中部支部南海トラフ巨大地震中部地域地盤災害研究委員会

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    Award type:Award from Japanese society, conference, symposium, etc. 

  5. Best Paper Award in ASCE Geotechnical Special Publication No.201

    2010.6  

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    Award type:Honored in official journal of a scientific society, scientific journal 

  6. 第45回地盤工学研究発表会優秀発表者賞

    2010   地盤工学会  

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    Country:Japan

  7. 第63回年次学術講演開優秀講演者表彰

    2008   土木学会  

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    Country:Japan

  8. 第43回地盤工学研究発表会優秀発表者賞

    2008   地盤工学会  

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    Country:Japan

  9. 第62回年次学術講演開優秀講演者表彰

    2007   土木学会  

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    Country:Japan

  10. 第40回地盤工学研究発表会優秀発表者賞

    2005   地盤工学会  

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  11. 第15回地盤工学シンポジウム優秀論文賞

    2004   地盤工学会中部支部  

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Papers 46

  1. SEISMIC PERFORMANCE EVALUATION OF PFS METHOD BY SOIL-WATER COUPLED FINITE DEFORMATION ANALYSIS

    Nakai Kentaro, Fujiwara Kakuta, Ogawa Nanase

    INTERNATIONAL JOURNAL OF GEOMATE   Vol. 22 ( 89 ) page: 94 - 99   2022.1

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    Language:Japanese  

    DOI: 10.21660/2022.89.gxi381

    Web of Science

  2. Effects of Strong Ground Motion with Identical Response Spectra and Different Duration on Pile Support Mechanism and Seismic Resistance of Spherical Gas Holders on Soft Ground

    Kobayashi Mio, Noda Toshihiro, Nakai Kentaro, Takaine Toshihiro, Asaoka Akira

    APPLIED SCIENCES-BASEL   Vol. 11 ( 23 )   2021.12

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    Language:Japanese  

    DOI: 10.3390/app112311152

    Web of Science

  3. PROGRESSIVE FAILURE OF UNSATURATED FILL SLOPE CAUSED BY CUMULATIVE DAMAGE UNDER SEEPAGE SURFACE Reviewed International journal

    Murao Hidehiko, Nakai Kentaro, Yoshikawa Takahiro, Noda Toshihiro

    INTERNATIONAL JOURNAL OF GEOMATE   Vol. 20 ( 78 ) page: 1 - 8   2021.2

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    Seepage surface position of fill slope can fluctuate owing to rainfall and groundwater supply from behind the slope. Therefore, in this study, shaking-table tests of an unsaturated fill slope were conducted to examine the influence of the seepage surface position on the fill slope stability by comparing with previous results in the fully saturated condition. An acceleration amplification factor was used to evaluate the stability. If the embankment was in an unsaturated condition, a slip plane was formed along the seepage surface. With ongoing increase of input acceleration, the slip progressed to behind the slope. Comparison of the unsaturated and saturated results showed that although the failure mechanism in which the slip surface was formed by the reduction in rigidity was common, the input acceleration at failure and deformation mode were different. When the slip surface was formed and failure occurred, the input acceleration in the unsaturated fill slope was more massive, and the deformation at the same excitation stage was small. These results imply that the unsaturated fill slope has a higher earthquake resistance than the saturated fill slope. Moreover, it is shown that the progress of plastic deformation inside the embankment and the formation process of the slip plane can be estimated from the change in the acceleration amplification factor regardless of seepage surface position.

    DOI: 10.21660/2020.78.j2036

    Web of Science

  4. 本震による傾斜を想定したガスホルダーの余震耐震性の簡易評価手法の提案 Reviewed

    小林実央, 田附英幸, 中井健太郎, 野田利弘

    土木学会論文集A2(応用力学)   Vol. 77 ( 2 ) page: 543 - 550   2021

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  5. 3-D numerical analysis for partial floating sheet-pile method under liquefaction Reviewed

    Fujiwara, K., Ogawa, N. and Nakai, K.

    Journal of JSCE   Vol. 9 ( 1 ) page: 138 - 147   2021

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi:10.3390/app112311152

  6. Validation of the applicability of a drainage method for reducing settlement and inclination of utility poles in liquefied ground Reviewed

    ITO, H., ISHIMARU, M., NAKAI, K. and NODA, T.

      Vol. 15 ( 3 ) page: 643 - 652   2020.9

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    Authorship:Last author   Language:Japanese   Publishing type:Research paper (scientific journal)  

    In the 2011 Earthquake off the Pacific coast of Tohoku, extensive liquefaction occurred in the Kanto region. This resulted in the settlement and inclination of thousands of utility poles. In urban areas, utility poles are often installed in narrow easements with limited clearance. Therefore, a simple and inexpensive countermeasure is desired. In this study, we attempted to reduce the settlement and inclination of utility poles in the liquefied ground by providing drain
    holes in the utility pole. In the centrifugal model tests conducted using pole models with drain holes at the bottom and sides, settlement and inclination decreased in relation to the amount of drainage. Therefore, it was determined that the drainage method has a definite effect on the reduction of both settlement and inclination of utility poles in the
    liquefied ground.

    DOI: https://doi.org/10.3208/jgs.15.643

    Scopus

  7. Deformation-failure mechanism of saturated fill slopes due to resonance phenomena based on lg shaking-table tests (vol 55, pg 1668, 2018)

    Murao Hidehiko, Nakai Kentaro, Noda Toshihiro, Yoshikawa Takahiro

    CANADIAN GEOTECHNICAL JOURNAL   Vol. 57 ( 8 ) page: 1263 - 1263   2020.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1139/cgj-2020-0419

    Web of Science

  8. LIQUEFACTION DAMAGE SUPPRESSION EFFECTS OF EXISTING SMALL SCALE STRUCTURE RECEIVING ECCENTRIC LOAD USING FLOATING GRID TYPE IMPROVEMENT Reviewed

      Vol. 76 ( 2 ) page: I_279-I_288   2020.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    all over the world. If the existing small-scale structures such as houses are tilted due to liquefaction, they suffer more serious damage than they are subsided. In this paper, the effect of countermeasure against tilting damage due to liquefaction using floating grid-type improvement was investigated by 2D model tests under 1g condition using eccentric model structure, and non-linear FEM analyses. From the results, it was found that the floating grid-type improvement can significantly suppress the settlement damage of structure by suppressing the lateral flow of the liquefied ground even if the dead load of structure is eccentric. It was also found that lateral flow of the liquefied soil hardly occurs when the structure inclines due to liquefaction, and the effect of countermeasure against tilting damage due to liquefaction using floating grid-type improvement was not as high as the effect of suppressing subsidence damage. Therefore, it was found that desirable to use a floating grid-type improvement and drainage method to prevent tilting damage of structure.

    DOI: https://doi.org/10.2208/jscejam.76.2_I_279

  9. 戸建て住宅の液状化被害に及ぼす隣家の影響 Reviewed

    中井健太郎,野田利弘,大庭拓也

    土木学会論文集 A2(応用力学)   Vol. 75 ( 2 ) page: I_401-I_410   2020.2

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    近年,多発している大規模な地震に伴う液状化によって多くの戸建住宅で深刻な被害が発生している.ここで,液状化被害の中でも構造物が傾斜する場合には構造物自体にも重大な損傷が発生するため,構造物が沈下する場合より被害はさらに深刻になる.そこで,本稿では接地圧が偏心し,傾斜被害が発生しやすい模型構造物を対象にした重力場での二次元模型実験や水~土骨格連成有限変形解析から浮き型格子状地盤改良による液状化被害の抑制効果について検討した.検討の結果,側方流動を抑制することを目的とした浮き型格子状地盤改良により,偏心荷重が作用した構造物においても液状化時における沈下被害を大きく抑制可能であることが分かった.一方で,浮き型格子状地盤改良で得られる傾斜被害抑制効果は沈下被害抑制効果ほど大きくないことが確認された.

    DOI: https://doi.org/10.2208/jscejam.75.2_I_401

  10. UNDRAINED CYCLIC SHEAR BEHAVIOR OF CLAY UNDER DRASTICALLY CHANGED LOADING RATE

    Khan Imran, Nakai Kentaro, Noda Toshihiro

    INTERNATIONAL JOURNAL OF GEOMATE   Vol. 18 ( 66 ) page: 16 - 23   2020.2

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    DOI: 10.21660/2020.66.07893

    Web of Science

  11. EXPERIMENTAL RESEARCH ON DEVELOPMENT/DIMINISHING OF ANISOTROPY AND ITS EFFECT ON MECHANICAL BEHAVIOR OF CLAY

    Khan Imran, Nakai Kentaro, Noda Toshihiro

    INTERNATIONAL JOURNAL OF GEOMATE   Vol. 18 ( 65 ) page: 9 - 14   2020.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.21660/2020.65.4729

    Web of Science

  12. NON-CONTACT ESTIMATION OF STRAIN PARAMETER-TRIGGERING LIQUEFACTION

    Uy Erica Elice S., Noda Toshihiro, Nakai Kentaro, Dungca Jonathan R.

    INTERNATIONAL JOURNAL OF GEOMATE   Vol. 16 ( 57 ) page: 82 - 88   2019.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.21660/2019.57.4722

    Web of Science

  13. 小規模な浮き型格子状地盤改良による既設小規模構造物の液状化被害の低減効果 Reviewed

    森河由紀弘,中井健太郎,中谷一貴,武田裕輔,前田健一,野田利弘

    土木学会論文集 A2(応用力学)   Vol. 75 ( 2 ) page: I_329-I_339   2019

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    近年,多発している大規模な地震に伴う液状化によって多くの戸建住宅で深刻な被害が発生している.ここで,液状化被害の中でも構造物が傾斜する場合には構造物自体にも重大な損傷が発生するため,構造物が沈下する場合より被害はさらに深刻になる.そこで,本稿では接地圧が偏心し,傾斜被害が発生しやすい模型構造物を対象にした重力場での二次元模型実験や水~土骨格連成有限変形解析から浮き型格子状地盤改良による液状化被害の抑制効果について検討した.検討の結果,側方流動を抑制することを目的とした浮き型格子状地盤改良により,偏心荷重が作用した構造物においても液状化時における沈下被害を大きく抑制可能であることが分かった.一方で,浮き型格子状地盤改良で得られる傾斜被害抑制効果は沈下被害抑制効果ほど大きくないことが確認された.

    DOI: https://doi.org/10.2208/jscejam.75.2_I_329

  14. MONITORING THE TRIGGERING OF LIQUEFACTION USING IMAGE PROCESSING

    Uy Erica Elice Saloma, Noda Toshihiro, Nakai Kentaro, Dungca Jonathan Rivera

    INTERNATIONAL JOURNAL OF GEOMATE   Vol. 15 ( 51 ) page: 180-187   2018.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.21660/2018.51.02150

    Web of Science

  15. Deformation-failure mechanism of saturated fill slopes due to resonance phenomena based on 1g shaking-table tests

    Murao Hidehiko, Nakai Kentaro, Noda Toshihiro, Yoshikawa Takahiro

    CANADIAN GEOTECHNICAL JOURNAL   Vol. 55 ( 11 ) page: 1668-1681   2018.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1139/cgj-2017-0385

    Web of Science

  16. Seismic assessment of sheet pile reinforcement effect on river embankments constructed on a soft foundation ground including soft estuarine clay

    Nakai Kentaro, Noda Toshihiro, Kato Kenta

    CANADIAN GEOTECHNICAL JOURNAL   Vol. 54 ( 10 ) page: 1375-1396   2017.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1139/cgj-2016-0019

    Web of Science

  17. A 3D soil-water coupled FE analysis of hollow cylinder test concerning non-uniform deformation Reviewed

    Xu, B., Nakai, K., Noda, T. and Takaine, T.

    Soils and Foundations   Vol. 53 ( 6 ) page: 923-926   2013.12

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  18. A means for assessing the seismic stability of a temporary structure sited on soft ground and preventing its collapse Reviewed

    Nakai, K. and Noda, T.

    Japanese Geotechnical Journal   Vol. 5 ( 3 ) page: 499-510   2010.9

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    While a temporary structure is relatively simple to erect and remove, the fact that no particular measures such as pile installations or soil improvements are taken for its protection can mean that there is a risk of it collapsing in the event of an earthquake. This paper reports a numerical analysis of the seismic stability of a temporary structure erected on a foundation of alternating clay and sand layers in a case where the surface layer is sandy and clayey. It finds that the main cause for the structure's collapse lies in 1) the increase in the amplitude of the tremors resulting from a coincidence of the predominant ground wave motion with the specific vibration of the structure, and 2) the decline in the bearing force and the consequent unevenness in the settlement of the structure as a result of liquefaction in the surface sand layer. One important prevention measure is to ensure that the specific vibration does not coincide with the predominant ground motion by making appropriate changes in the height and width of the structure; but another cheap but effective safeguard is to increase the area of contact between the structure and its foundation by laying a base immediately below the temporary structure.

  19. Seismic response analysis of a coastal artificial reclaimed ground containing a soft layer Reviewed

    Noda, T., Nakai, K. and Asaoka, A.

    IOP Conference Series: Materials Science and Engineering   Vol. 10   page: CD, No.012107.   2010.7

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    The seismic resistance of a coastal artificial ground situated within the Port of Nagoya against the Tokai-Tonankai-Nankai triple-segment earthquake was assessed. The analysis was carried out using the elasto-plastic constitutive equation for soils (SYS-Cam clay model) mounted on the soil-water coupled finite element deformation analysis program The model focuses attention on the action of the soil skeleton structure, and the analysis allows description of the mechanical behavior of a wide range of soils without distinguishing between static and dynamic behavior. When considering earthquake damage, attention usually tends to focus only on the phenomenon of liquefaction in sandy grounds. In this paper, finite element analysis was employed to simulate the phenomenon of liquefaction of soft sand and, in addition, to show that because of disturbance of the soil during the earthquake, there is a danger of large settlement occurring over a long period after the earthquake in the soft clay layer directly beneath the area that is under the action of vertical loads.

  20. 部分的に固化改良したゆるい砂地盤の地震時/地震後応答解析 Reviewed

    竹内秀克, 中井健太郎, 野田利弘

    応用力学論文集   Vol. 13   2010.6

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  21. Different failure modes of a clay foundation-embankment system corresponding to different incident seismic waves Reviewed

    Nakai, K., Noda, T. and Asaoka, A.

    ASCE Geotechnical Special Publication No.201, Soil Dynamics and Earthquake Engineering     page: 125-130   2010.6

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    In recent years, damage to embankments from earthquakes has been frequently reported. In this paper, the deformation and failure behavior of an embankment constructed on a weak clay foundation during and after an earthquake is investigated using numerical analysis, GEOASIA, assuming a 40 g centrifugal field. The main conclusions obtained were as follows. 1) Although the embankment remained stable without large deformation during the earthquake, a slip plane subsequently penetrated through the embankment, resulting in delayed failure (circular arc slip). 2) The deformation behavior (failure mode) of the foundation and embankment varies greatly depending on the characteristics of the incident seismic motions.

  22. Modeling and seismic response analysis of a reclaimed artificial ground Reviewed

    Noda, T., Asaoka, A. and Nakai, K.

    ASCE Geotechnical Special Publication No.201, Soil Dynamics and Earthquake Engineering     page: 294-299   2010.6

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    Compared with natural grounds formed by sedimentation over many years, reclaimed artificial grounds are often weak. In this work, modeling of a reclaimed offshore artificial ground and its seismic response analysis were carried out, and the vulnerability of the weak reclaimed layers to seismic activity is pointed out. This study was carried out using a soil-water coupled finite deformation analysis program GEOASIA incorporating an elasto-plastic constitutive model (the SYS Cam-clay model). This model is capable of describing, within a single framework, the behaviors of sands, clays, and intermediate soils consisting of sand/clay mixtures through their soil skeleton structures (structure, overconsolidation, anisotropy) and its works. In reclaimed sand, lateral flow and upward lifting of lightweight underground structures occur because of liquefaction during an earthquake. In reclaimed clay, long-term settlement, which continues for several years after the earthquake, occurs.

  23. Seismic stability assessment of a lightweight structure on sandy/clayey foundations Reviewed

    Nakai, K. and Noda, T.

    Proceedings of the Fourth Japan-China Geotechnical Symposium     page: 564-571   2010.4

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    For a temporary structure, which is comparatively easy to placement and withdrawal, special countermeasures such as pile penetration or ground improvement are not taken into considerations. As a consequence, when an earthquake occurs during the placement/construction, personal injury might be caused by overturning of the temporary structure. In this paper, co- and post-seismic responses of interactive systems consisting of a temporary structure - alternately layered sandy/clayey foundations were numerically investigated by using a soil-water coupled elasto-plastic finite deformation analysis. The findings are mainly as follows. 1) An unstable structure such as temporary structure become at high risk of overturning by means of liquefaction of sand layer. 2) Although it is possible to consider countermeasure against overturning by widen the breadth and lower the height of the temporary structure, it turned out that installation of a construction board is very effective.

  24. *Structure upgradation concept applied to cyclic mobility of sand and high ductility of natural clay Reviewed

    Nakai, K., Noda, T., Nakano, M. Asaoka, A. and Kawai, T.

    Proceedings of 17th International Conference on Soil Mechanics and Geotechnical Engineering     page: 175-178   2009.10

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    Naturally deposited sands/clays are mostly found in structured states. In addition, these are usually in overconsolidated states. Furthermore, they exhibit more or less a condition of anisotropy. In order to describe the mechanical behavior of these natural soils, the authors proposed an elasto-plastic constitutive model, namely Super/subloading yield surface Cam-clay model (E.g. Asaoka et al., 2002), in which three mechanical concepts and their evolution rules were introduced into the Cam-clay model; the first one describes `degradation of soil structure' due to ongoing plastic deformation, the second, `loss of overconsolidation', and the third, `development/loss of anisotropy'. It can be emphasized in the model that, for sand, the degradation of structure proceeds more rapidly than the loss of overconsolidation, while for clay, the loss of overconsolidation proceeds more rapidly than the degradation of soil structure. Thus, the model can describe sand and clay consistently within the same theoretical framework.
    For evolution rule of soil structure, most simple one is to consider only the degradation process. But through the exhaustive observation of repeated undrained shear behavior of sand, especially pre and post cyclic mobility behavior, upgradation process of the soil structure can be truly found. So, in the present paper, the process of re-upgradeation for the soil structure due to the plastic volume expansion, i.e. the (positive) dilation, is newly introduced to the model, dividing the contribution of plastic deformation to the change of soil structure into the volumetric and deviatoric part as a sophisticated evolution rule for the soil skeleton structure. And, the importance of upgradation concept of soil skeleton structure can be showned in shear behavior of both sand and clay demonstrating their model responses
    1) Sand: Cyclic mobility behavior can be described. Fig.1 shows the calculated result of repeated undrained shear behavior of medium dens

  25. *Co-seismic and post-seismic behavior of an alternately layered sand-clay ground and embankment system accompanied by soil disturbance Reviewed

    Noda, T., Takeuchi, H., Nakai, K. and Asaoka, A.

    Soils and Foundations   Vol. 49 ( 5 ) page: 739-756   2009.10

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  26. *Numerical simulation of a delayed circular slip failure after the occurrence of the earthquake Reviewed

    Nakai, K., Noda, T. and Asaoka, A.

    Proceedings of 4th International Workshop on New Frontiers in Computational Geomechanics     page: 29-32   2008.10

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    By using a soil-water coupled finite element method, deformation/failure behavior during and after the occurrence of an earthquake in a clay foundation-embankment system was numerically examined. The elasto-plastic constitutive model for the soil skeleton is the Super/subloading Yield Surface Cam-clay model. The embankment was calculated as a saturated soil. The results showed that the embankment maintained stability without any significant large deformation during the earthquake, while slip failure penetrating to the crest was suddenly generated a few hours after the earthquake.

  27. Postseismic consolidation settlement of clayey soil due to the coseismic disturbance Reviewed

    Noda, T., Takeuchi, H., Nakai, K., Nakano, M. and Asaoka, A.

    Proceedings of 4th International Workshop on New Frontiers in Computational Geomechanics     page: 57-60   2008.10

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  28. *Delayed failure of a clay foundation-embankment system after the occurrence of an earthquake Reviewed

    (6) Noda, T., Nakai, K. and Asaoka, A.

    Theoretical and applied mechanics JAPAN   Vol. 57   page: 41-47   2008

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  29. Liquefaction-induced consolidation of embankment soil after earthquake Reviewed

    Asaoka, A., Sawada, Y., Noda, T. and Nakai, K.

    Proceedings of 13th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (13th ARC)     page: 602-605   2007.12

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  30. Effects of embankment rigidity on behavior of naturally deposited soils during/after earthquakes Reviewed

    Noda, T., Asaoka, A, Nakano, M. Nakai, K. and Takeuchi, H.

    Proc. of International Workshop on Earthquake Hazards and Mitigations     page: 23-26   2007.12

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  31. Structural re-upgradation in clay and sand accompanying plastic swelling Reviewed

    Noda, T., Asaoka, A. Nakai, K. and Tashiro, M

    Proceedings of 13th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering(13th ARC)     page: 23-26   2007.12

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  32. Explanation of cyclic mobility of soils: approach by stress-induced anisotropy Reviewed

    Zhang, F., Ye, B., Noda, T., Nakano, M. and Nakai, K.

    Soils and Foundations   Vol. 47 ( 4 ) page: 635-648   2007.8

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  33. High ductility of structured clay and cyclic mobility of sand Reviewed

    Nakai, K., Noda, T., Nakano, M., Tashiro, M. and Asaoka, A

    Proc. of 3rd International Workshop on New Frontiers in Computational Geomechanics (IWS-Xian2006)     page: 183-186   2006

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  34. High ductility of structured clay and cyclic mobility of sand Reviewed

    Nakai, K., Noda, T., Nakano, M., Tashiro, M. and Asaoka, A.

    Proceedings of 3rd International Workshop on New Frontiers in Computational Geomechanics (IWS-XIAN 2006)     page: 183-186   2006

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  35. Large compression of soil due to decay of structure during drained repeated shearing Reviewed

    Masaki NakanoAkira AsaokaKentaro NakaiMutsumi Tashiro

    The 16th International Conference on Soil Mechanics and Geotechnical Engineering,Osaka, Japan.     page: 929-932   2005.9

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    Huge volume compression of loose sand can be easily observed not under monotonic loading but under repeated shear stress application with small amplitudes, which is called compaction of sand. Although it takes long time the similar phenomenon is commonly observed even in highly structured natural clay, which has been called, for long years, secondary consolidation/delayed compression of natural clay. This study describes that these large-scaled volume compression observed both in clay and sand is due to the decay/collapse of soil skeleton structure that occurs with on going plastic shear deformation. Distinguishing the mechanical difference between sand and clay, the super/subloading elasto-plastic constitutive model still explains the mechanism of the volume compression of soils consistently.

  36. Densification/compression by compaction of a granular geomaterial changed by crushing dewatered sludge with air Reviewed

    Kentaro NakaiMasaki NakanoKazuhiro Kaneda

    The 16th International Conference on Soil Mechanics and Geotechnical Engineering,Osaka, Japan.     page: 2307-2310   2005.9

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    To improve the construction surplus soil and to use the soil as a geomaterial, a densification technology of soil with high water con-tent such as dewatered sludge is studied. The densification is brought by the change from the `consolidation material' like clay to the `compactable material' like sand. The soil is crushed with air to an assembly of clay pebbles, the water content of which is ease to de-crease, and therefore the assembly can be compacted to high density without long consolidation time. The soil became low com-pressible and had high shear resistance, which can be describe by Super/subloading Yield Surface model.

  37. Softening behavior with plastic compression on highly structured naturally deposited cla Reviewed

    Kentaro NakaiMasaki Nakano

      Vol. 8   page: 451-460   2005.8

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    Highly structured naturally deposited clay exhibits the softening with plastic compression due to the decay of soil structure. The softening behavior can be expressed by Super/subloading Yield Surface Cam-clay model, SYS Cam-clay model (Asaoka et al., 2002), in which the concepts of “structure," overconsolidation, anisotropy, and their evolution laws, are introduced into the modified Cam-clay model. In the present study, in order to examine the effects on the softening behavior, the consolidation test with some constant stress ratios controlled by the strain rate was carried out using Joban clay, highly structured clay, and calculated by SYS Cam-clay model. The new findings are as follows. (1) The large compression due to the softening with plastic compression occurs when the stress ratio of consolidation was large, initial degree of structure was large and degradation speed of structure is rapid through the calculation. (2) The experimental results showed the same tendency as the calculation results. (3) The axial strain proceeded by 4% keeping the deviator stress q and mean effective stress p constant axial strain in the consolidation test with stress ratio of 1.3.

  38. Elasto-plactic Description of Undrained Shear Behavior of Sand Depending on Confining Stress Reviewed

    Masaki NakanoToshihiro NodaKentaro NakaiAkira Asaoka

    International Symposium on Plasticity 2005, Kauai (Hawaii)     page: 283-285   2005.1

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  39. *Simulation of shear and one-dimensional compression behavior of naturally deposited clays by Super/subloading Yield Surface Cam-clay model Reviewed

    Masaki NakanoKentaro NakaiToshihiro NodaAkira Asaoka

    Soils and Foundations   Vol. 45 ( 1 ) page: 141-151   2005

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    In the present study, undrained triaxial compression tests and oedometer tests were carried out on two types of naturally deposited undisturbed clay, Pleistocene clay and Holocene clay, and the behaviors of these clays were then simulated using the Super/subloading Yield Surface Cam-clay model (Asaoka, Nakano and Noda, 1998, 2000 and Asaoka et al., 2002), in which the concepts of “structure," overconsolidation, anisotropy, and their evolution laws, are introduced into the modified Cam-clay model. The findings of the present study are as follows:
    1) For the two types of undisturbed clay, the Super/subloading Yield Surface Cam-clay model can simulate undrained triaxial compression behaviors ranging from the normally consolidated state to the overconsolidated state, corresponding to various isotropic pressures using a single set of material constants.
    2) In addition, the model can simulate one-dimensional compression behaviors using the same material constants as those used for the undrained triaxial compression behavior simulation.
    3) Both undrained shear and one-dimensional compression behaviors for the two types of undisturbed clay, that is Pleistocene clay and Holocene clay, which have different loading histories and have undergone different ageing effects, were simulated using the Super/subloading Yield Surface Cam-clay model by changing the evolution parameters.

  40. Densification of dewatered sludge by compaction after crushing and air-mixing mechanical behaviour of structured clay and simulation Reviewed

    Nakano, M., Nakai, K. and Kaneda, K.

    ASCE Geotechnical Special Publication No.156, Geomechanics II: Testing Modeling and Simulation     page: 189-200189-200   2005

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  41. Effect of the slaking susceptibility on one-dimensional compression behavior of crushed Tertiary mudstone assembly Reviewed

    Masaki NakanoKentaro Nakai

      Vol. 7   page: 685-692   2004.8

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    Large amount of Tertiary mudstones appears by the major construction works, and the efficient use of mudstone is expected. But it is well known that Tertiary mudstone exhibits “slaking." In order to use mudstone with advantage, it is necessary to understand the effect of the slaking on mechanical behavior. Tertiary mudstones are used in assembly of crushed mudstone pebbles on using for construction. So, one-dimensional compression tests are carried out for the assembly of two types of Tertiary mudstones having a different resistance to slaking. And then these one-dimensional compression properties are simulated by the SYS Cam-clay model. The findings are as follows. (1) The stress state of the mudstone pebbles with a low resistance to slaking can be existed below the normal consolidation line (NCL) of the remolded mudstone under loading in e-σv space, while the mudstone pebbles with a high resistance to slaking can be existed above the NCL. (2) Through the model, the mudstone assembly with a low resistance to slaking can be regarded as sand, of which structure collapses quickly and overconsolidation loses slowly, while the mudstone assembly with a high resistance to slaking can be regarded as clay, of which structure decays slowly and overconsolidation loses quickly.

  42. Description of “compaction" and “liquefaction" behavior of sand based on evolution of soil skeleton structure Reviewed

    Nakai, K, Nakano, M., Noda, T. and Asaoka, A.

    Proceedings of 2nd International Workshop on New Frontiers in Computational Geomechanics (IWS-FORTALEZA 2004),     page: 29-32   2004

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  43. Effect of the initial soil structure on slaking susceptibility of Tertiary mudstone Reviewed

    Masaki NakanoKentaro Nakai

      Vol. 6   page: 419-426   2003.8

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    To examine the effect of the initial soil structure on slaking susceptibility of Tertiary mudstone, one-dimensional compression tests are carried out for three kinds of tertiary mudstone with a different resistance to slaking. These one-dimensional compression properties are simulated by the modified Cam-clay model with Super/subloading yield surface and rotational hardening. The new findings are as follows. (1) The initial stress state of the mudstone with a high resistance to slaking in e-σv space is above the normal consolidation line (NCL) of the clay that was remolded from the mudstone, while the state of the mudstone with a low resistance to slaking is below the NCL. (2) From the model, the mudstone with a high resistance to slaking can be regarded as the high structured and overconsolidated clay, while the mudstone with a low resistance to slaking can be regarded as the heavily overconsolidated and less structured clay.

  44. Elasto-Plastic Description of Shear Behavior after Compaction of Loose Sand Reviewed

    Masaki NakanoToshihiro NodaEiji YamadaKazuhiro KanedaKentaro Nakai

    Proc. 1st Inter. Workshop on New Frontiers in Comp. Geomechanics (IWS- CALGARY 2002), (Eds A. Yashima et al.,) Calgary, Canada.     page: 27-32   2003

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  45. Elasto-plastic Simulation of Compaction Behavior of Loose Sand due to the Decay of Soil Structure Reviewed

    Masaki NakanoAkira AsaokaKazuhiro KanedaKentaro Nakai

    Proc. of 12th Asian Regional Conf. on Soil Mechanics and Geotechnical Engineering, Leung et al. Singapore.     page: 505-508   2003

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  46. Compaction behavior of sand with degradation of structure and overconsolidation Reviewed

    Nakano, M., Noda, T., Asaoka A. and Nakai, K.

    Proc. of Sino-Japanese Symposium on Geotechnical Engineering, Beijing, China     page: 455-462   2003

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MISC 7

  1. 巨大地震発生に備えて今後の河川堤防の耐震性能照査のために検討すべき事項

    中井健太郎

    建設機械   Vol. 57 ( 6 ) page: 27 - 32   2021.6

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    Authorship:Lead author   Language:Japanese  

  2. 電柱のドレーン化による液状化対策 -遠心力模型実験と数値解析による地震時変状抑制効果の検証-

    石丸真, 中井健太郎, 野田利弘, 伊藤広和

    基礎工   Vol. 49 ( 5 ) page: 81 - 84   2021.5

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  3. 土木分野のV&Vに関する事例紹介

    中井健太郎, 渦岡良介, 西尾真由子

    日本機械学会誌   Vol. 123 ( 1222 ) page: 18 - 21   2020.9

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  4. 地盤解析コードGEOASIAを用いた地盤・土構造物の地震応答解析

    野田利弘, 中野正樹, 山田正太郎, 中井健太郎, 高稲敏浩, 浅岡顕

    地盤工学会誌   Vol. 63 ( 10 ) page: 16 - 19   2015

  5. 南海トラフ巨大地震に対する濃尾平野の地盤工学的課題と研究事例紹介

    野田利弘, 中井健太郎

    地盤工学会誌   Vol. 62 ( 1 ) page: 24 - 27   2014

  6. 泥岩岩塊集合体の粘土化を伴う力学挙動の骨格構造概念に基づく解釈

    中野正樹, 中井健太郎, 酒井崇之

    地盤工学会誌   Vol. 60 ( 7 ) page: 6 - 9   2012

  7. 地震によって生じる地盤災害の水~土骨格連成有限変形解析

    中井健太郎, 野田利弘

    混相流レクチャーシリーズ 第37回 混相流を伴う自然災害 -数値解析の視点から現象を捉える-     page: 13 - 24   2012

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Presentations 22

  1. セメント添加カルシウム溶脱による軟弱粘性土供試体の作製

    古市実希, 中井健太郎,

    令和3年度土木学会中部支部研究発表会  2022.3.4 

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    Event date: 2022.3

  2. L2地震に対する砂・粘土互層軟弱地盤上の河川堤防の二重鋼矢板工法による変形抑止効果

    野田利弘, 中井健太郎, 吉川高広, 高稲敏浩

    第9回河川堤防技術シンポジウム  2021.12.14 

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    Event date: 2021.12

  3. 2016年熊本地震における阿蘇カルデラ陥没被害に及ぼした連発地震の影響

    中井健太郎, 福田慎也, 野田利弘, 浅岡顕, 村尾英彦

    第76回土木学会年次学術講演会  2021.9.10 

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    Event date: 2021.9

  4. 1質点ばね動的非線形解析を用いた本震による傾斜ガスホルダーの耐余震性評価

    小林実央, 田附英幸, 中井健太郎, 野田利弘

    第76回土木学会年次学術講演会  2021.9.10 

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    Event date: 2021.9

  5. L2地震動タイプに応じた支持杭の損傷過程の違いが及ぼす球形ガスホルダーの沈下挙動への影響

    高稲敏浩, 野田利弘, 中井健太郎, 小林実央, 小口憲武, 浅岡顕, 大保直人

    第76回土木学会年次学術講演会  2021.9.10 

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    Event date: 2021.9

  6. Experimental approach to artificially produce sensitive clayey specimen by cement adding and calcium leaching

    2021.8.10 

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    Event date: 2021.8

  7. 2016年熊本地震における阿蘇カルデラ陥没被害に及ぼした地層不整形性と軟弱粘性土の影響

    中井健太郎, 福田慎也, 野田利弘, 浅岡顕, 村尾英彦

    第56回地盤工学研究発表会  2021.7.13 

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    Event date: 2021.7

  8. 断層面近傍に見られる地盤材料の強度低下に関する弾塑性力学的考察

    山田英司, 野田利弘, 中井健太郎, 浅岡顕

    第56回地盤工学研究発表会  2021.7.13 

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    Event date: 2021.7

  9. 弾塑性地震応答解析による地層不整形性・軟弱粘性土・連発地震に着目した2016年熊本地震における阿蘇カルデラ陥没メカニズムの解明

    中井健太郎, 福田慎也, 野田利弘, 浅岡顕

    2021年度地球惑星科学連合大会  2020.6.5 

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    Event date: 2021.5 - 2021.6

    Presentation type:Oral presentation (general)  

  10. ベントナイト系材料挙動に対する骨格構造概念を考慮した弾塑性構成モデルの適用性検討

    佐藤伸, 山本修一, 志村友行, 中井健太郎, 野田利弘

    土木学会第75回年次学術講演会 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  11. 液状化地盤における電柱のドレーン化による地震時変状抑制効果の数値解析的検証

    中井健太郎, 野田利弘, 鈴木春香, 石丸真, 伊藤広和

    第55回地盤工学研究発表会 

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    Event date: 2020.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  12. 水平海底地盤の隆起傾斜に誘発される正断層群の下部での消滅メカニズムの一考察

    山田英司, 野田利弘, 中井健太郎 浅岡顕

    第55回地盤工学研究発表会 

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    Event date: 2020.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  13. 水~土連成有限変形解析に基づく長時間強震動を受ける球形ガスホルダー‐軟弱地盤系の地震時~地震後挙動の評価

    小林実央, 高稲敏浩, 野田利弘, 中井健太郎, 浅岡顕, 大保直人, 小口憲武

    第55回地盤工学研究発表会 

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    Event date: 2020.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  14. 液状化地盤における電柱のドレーン化による地震時変状抑制効果に関する遠心力模型実験

    石丸真, 伊藤広和, 中井健太郎, 野田利弘

    第55回地盤工学研究発表会 

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    Event date: 2020.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  15. 液状化地盤における電柱のドレーン化による地震時変状抑制効果の数値解析的検証

    中井健太郎, 野田利弘, 鈴木春香, 石丸真, 伊藤広和

    第55回地盤工学研究発表会 

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    Event date: 2020.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  16. 熊本地震で発生した阿蘇カルデラ内の陥没被害発生メカニズムを考える

    中井健太郎, 野田利弘, 福田慎也, 村尾英彦

    第28回(令和元年度)NPO法人熊本自然災害研究会 

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    Event date: 2019

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Country:Japan  

  17. セメント固化後のカルシウム溶脱による軟弱粘性土供試体の作製の試み

    中井健太郎, 水上孔太, Imran Khan, 野田利弘

    第53回地盤工学研究発表会講演概要集 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  18. L2 地震下で顕著になる河川堤防直下の軟弱粘性土の揺すりこみ沈下挙動

    中井健太郎, 野田利弘, 黒口拳四郎

    第74回土木学会年次学術講演会 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  19. 地層不整形性に起因した地震被害の局所化・甚大化メカニズムの解明~2016 年熊本地震による阿蘇カルデラの陥没被害を例に~

    中井健太郎, 野田利弘, 福田慎也, 村尾英彦, 浅岡顕

    日本地震工学会 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  20. 実体波と表面波の複雑な干渉が表層地盤被害におよぼす影響

    中井健太郎, 野田利弘, 浅岡顕

    第15回日本地震工学シンポジウム 

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    Event date: 2018

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  21. Seismic damage of soft clay layer directly under the river levee that becomes prominent by L2 earthquake International conference

    Noda, T. and Nakai, K.

    17th World Conference on Earthquake Engineering 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  22. Localized/enormous seismic damage of subsurface ground induced by the stratum irregularity International conference

    Nakai, K., Noda, T., Fukuda, S., Murao, H. and Asaoka, A.

    17th World Conference on Earthquake Engineering 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

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Research Project for Joint Research, Competitive Funding, etc. 3

  1. 傾斜地盤上の盛土の耐震評価に関する研究

    2008.4 - 2009.2

    国内共同研究 

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    傾斜地盤上に建てられた盛土の耐震評価を行うために、原位置で得られた地盤情報および力学試験結果をSYSカムクレイモデルに基づいて考察し、地盤の材料定数と初期値を決定する。その後、GEOASIAを用いて水~土骨格連成動的/静的有限変形解析を実施し、地震時変形挙動を調べるとともに、シートパイルによる補強効果を検証する。さらに、土の種類や状態(密度)、傾斜角度およびシートパイル長を変えたケーススタディを行うことによって、その他様々な地盤における補強対策の必要性や補強効果について検討する事が可能である。

  2. 地盤の液状化が架設中構造物に及ぼす影響に関する検討業務

    2006.4 - 2007.3

    名古屋高速道路公社 

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    Grant type:Competitive

  3. 中間土からなる人工島・護岸構造物の耐震性再評価 ―液状化・揺すり込み変形防止の地盤強化技術の開発―

    2005.4 - 2008.3

    建設技術研究開発費補助金 

    浅岡顕

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    Authorship:Coinvestigator(s) 

KAKENHI (Grants-in-Aid for Scientific Research) 7

  1. Stability evaluation and strengthening measures for saturated / unsaturated earth structures against multi-hazard of large earthquakes and heavy rains

    Grant number:17H01289  2017.4 - 2021.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    Noda Toshihiro

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    Authorship:Coinvestigator(s) 

    Earthquake damage such as the Great East Japan Earthquake and the 2016 Kumamoto Earthquakes, and heavy rain damage such as the Torrential rains of August 2014 and the 2018 Japan floods have occurred one after another. In this research, we have newly developed an analysis code that enables performance evaluation of ground and earth structures against such large earthquakes, heavy rains, and their complex events, and the validation of this analysis code was performed through numerical simulations of mechanical and model experiments. Using this analysis code, we evaluated the performance of ground and earth structures against combined external forces of earthquakes and rainfall, and extracted problems / issues in seismic and water resistance.

  2. 不飽和土の内包する地盤力学への展開と巨大地震に対する地盤~土構造物の耐震性評価

    Grant number:25249064  2013.4 - 2017.3

    日本学術振興会  科学研究費補助金  基盤研究(A)

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    Authorship:Coinvestigator(s) 

  3. 細粒分を多く含む表層土の液状化挙動に及ぼす深部地層構成の影響

    Grant number:24760377  2012.4 - 2014.3

    日本学術振興会  科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

  4. 破砕や泥濘化などに由来した各種特殊土の力学挙動の骨格構造概念に基づく弾塑性記述

    Grant number:22760354  2010.4 - 2012.3

    日本学術振興会  科学研究費補助金  若手研究(B)

    中井 健太郎

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    Authorship:Principal investigator 

  5. 海溝型連発大地震も視野に入れた我が国沿岸域の耐震性再評価と地盤強化技術の検討

    Grant number:21226012  2009.4 - 2014.3

    日本学術振興会  科学研究費補助金 

    野田利弘

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    Authorship:Coinvestigator(s) 

  6. 破砕・拡散混合により瞬時・大量に改良された微粒珪砂キラの地盤材料への有効利用

    Grant number:18560483  2006.4 - 2007.3

    日本学術振興会  科学研究費補助金  基盤研究(C)

    中野正樹

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    Authorship:Coinvestigator(s) 

  7. 自然堆積および人工地盤の構造・過圧密・異方性を含む弾塑性地盤性状の確定

    Grant number:18360227  2006.4 - 2007.3

    日本学術振興会  科学研究費補助金  基盤研究(B)

    浅岡顕

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    Authorship:Coinvestigator(s) 

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Teaching Experience (On-campus) 1

  1. Advanced Numerical Analysis

    2021

 

Social Contribution 32

  1. 地盤の液状化とは? 被害と発生メカニズムを考えよう

    Role(s):Lecturer

    静岡県立韮山高等学校  2021.12

  2. 動く大地 軟らかくなる地盤

    Role(s):Lecturer

    蟹江町立舟入小学校  2021.10

  3. 土の不思議と環境土木工学

    Role(s):Lecturer

    私立滝高等学校  2021.9

  4. 液状化しそうな地盤とは!?

    Role(s):Lecturer

    土木学会中部支部  出前講義(愛知県立海翔高等学校)  2021.1

  5. 液状化しそうな地盤とは!?

    Role(s):Lecturer

    アカデ美和子どもカレッジ  2019.8

  6. 液状化しそうな地盤とは!?

    Role(s):Lecturer

    愛知県立海翔高等学校  2019.7

  7. 南海トラフ巨大地震発生時の堆積盆地上に立地する都市部の地盤災害を考える

    Role(s):Lecturer

    地盤工学会関東支部  2019.2

  8. 土木学会応用力学委員会でのV&Vに関する活動

    Role(s):Informant

    非線形地震応答解析の検証と妥当性確認の方法と事例Workshop  2019.2

  9. 名古屋大学環境土木・建築学科環境土木工学コースを知る~土の力学に触れてみよう~

    Role(s):Lecturer

    名古屋市立向陽高校  2018.10

  10. 地盤工学におけるスケーリング ~模型実験と数値解析の役割~

    Role(s):Lecturer

    日本計算工学講演会HQC研究会  2018.10

  11. 土木学会応用力学委員会でのV&Vに関する活動

    Role(s):Panelist

    第23回計算工学講演会パネルディスカッション, V&V標準の今  2018.6

  12. 地盤工学における数値解析の役割を考える

    Role(s):Lecturer

    中国地区応用力学フォーラム  2018.1

  13. 液状化しそうな地盤とは!?

    Role(s):Lecturer

    愛知県立鶴城丘高等学校  2017.12

  14. 液状化しそうな地盤とは!?

    Role(s):Lecturer

    岡崎市立北中学校  2017.1

  15. 地層の不整形性が表層の液状化被害に及ぼす影響 ~浦安市を例として~

    Role(s):Lecturer

    国際地質科学連合(IUGS)環境管理研究委員会・NPO日本地質汚染審査機構  熊本地震国際合同調査速報シンポジウム  2016.6

  16. 名古屋大学環境土木・建築学科環境土木工学コースを知る~土の力学に触れてみよう~

    Role(s):Lecturer

    愛知県立松陰高校  2016.3

  17. 知って備える液状化!

    Role(s):Lecturer

    大垣市北地区福祉推進委員連絡会講演会  2015.6

  18. 巨大地震発生時の地盤災害を考える

    Role(s):Lecturer

    最新!南海トラフ巨大地震 防災対策講演会  2014.12

  19. 地震発生時に何が起きるのか.何を備えたらよいのか ~南海トラフの巨大地震に対する被害想定を正しく理解するために~

    Role(s):Lecturer

    名古屋市緑区大高町込高町内会学習会  2014.10

  20. 南海トラフ地震で予想される液状化被害と液状化対策の効果

    Role(s):Lecturer

    名古屋市昭和区松栄学区耐震化学習会  2014.6

  21. 液状化しそうな地盤とは? 作って調べてみよう

    Role(s):Lecturer

    西尾市立一色南部小学校  親子ふれあい教室  2014.6

  22. 浦安市の甚大な液状化被害はなぜ発生したのか

    Role(s):Lecturer

    平成26年度第1回日本建築学会近畿支部基礎構造部会講演会  2014.4

  23. 不整形な地層が表層の液状化被害に及ぼす影響 ~浦安市の液状化被害を参考に~

    Role(s):Lecturer

    第3回RSO(リサイクルソルーション)講演会  2014.3

  24. 地盤工学における数値解析の現状と役割

    Role(s):Panelist

    応用力学委員会土木分野の数値解析におけるV&Vに関する小委員会  平成26年度土木学会全国大会研究討論会, 「数値解析におけるV&V(検証と妥当性確認)をご存知ですか?」  2014

  25. 濃尾平野のゼロメートル地帯の防災を考える

    Role(s):Lecturer

    第26回げんさいカフェ(GEN SCIENCE CAFÉ)  2013.7

  26. 液状化しそうな地盤とは? 作って調べてみよう

    Role(s):Lecturer

    西尾市立一色南部小学校  2013.6

  27. 東海地区で液状化しやすい地盤とその特徴

    Role(s):Lecturer

    ジャパンホームシールド㈱  2013.4

  28. 巨大地震発生による地盤災害を考える

    Role(s):Lecturer

    豊明市防災啓発事業  2012.11

  29. 液状化現象を考える

    Role(s):Lecturer

    豊明市市民のためのシンポジウム  2011.12

  30. 液状化を考える ~東日本大震災の課題と分析を通じて~

    Role(s):Lecturer

    土木学会中部支部市民対象講座「東海・東南海・南海地震に備えて」  2011.11

  31. 地盤の液状化現象~なぜ起こるのか?どのようにして防ぐのか?~

    Role(s):Lecturer

    磐田高校  2011.8

  32. 液状化の発生メカニズムとその対策

    Role(s):Lecturer

    愛知土壌・地下水汚染対策研究会  2011.7

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Media Coverage 2

  1. まさか! 川の堤防が… Newspaper, magazine

    中日新聞  連載企画「備える」  2014.8

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    Author:Myself 

  2. 海抜ゼロメートル地帯を考える TV or radio program

    NHKラジオ  2013.7

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    Author:Myself