Otsubo Masahide 大坪正英

… Alternative Names

OTSUBO MASAHIDE 大坪正英

Less

Researcher Number	80804103
Other IDs
Affiliation (Current)	2025: 国立研究開発法人海上・港湾・航空技術研究所, 港湾空港技術研究所, 主任研究官 2025: 国立研究開発法人土木研究所, 土木研究所(つくば中央研究所), 主任研究員
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人海上・港湾・航空技術研究所, 港湾空港技術研究所, 研究官 2022 – 2023: 国立研究開発法人土木研究所, 土木研究所(つくば中央研究所), 主任研究員 2017 – 2022: 東京大学, 生産技術研究所, 助教
Review Section/Research Field	Principal Investigator Basic Section 22030:Geotechnical engineering-related / Geotechnical engineering Except Principal Investigator Basic Section 22030:Geotechnical engineering-related / Medium-sized Section 22:Civil engineering and related fields
Keywords	Principal Investigator 地盤工学 / 波動伝播 / 個別要素法 / 室内試験 / 地盤剛性 / 土質力学 / 模型実験 / 地盤陥没 / 砂質土 / 液状化 … More / 地盤挙動 / 地中波動伝播 / 内部侵食 / 粒子形状 / アーチ機構 / 数値解析 / 粒子間付着力 / 粒状体 / アーチ効果 / 地中空洞 … More Except Principal Investigator 地盤工学 / 流動 / 火山性土 / 超高間隙構造土 / 巨視的挙動 / 微視的挙動 / 粒状体 / 液状化 / 地盤陥没 / 陥没 / 水みち / 内部侵食 / 空洞 / 力学特性 / 地盤材料 / 室内土質試験 Less

超高間隙構造土の骨格構造の崩壊に伴うせん断抵抗の消失および流動ポテンシャルの評価
- Principal Investigator
  
  桑野玲子
- Project Period (FY)
  2024 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 22030:Geotechnical engineering-related
- Research Institution
  The University of Tokyo
Developing health monitoring and prediction techniques of soil behaviours based on dynamic wave signalsPrincipal Investigator
- Principal Investigator
  
  大坪正英
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 22030:Geotechnical engineering-related
- Research Institution
  Public Works Research Institute
Measurement of shear properties of granular media under extremely low confining stress states aiming at drastic innovation of modelling of liquefaction characteristics of sands
- Principal Investigator
  
  Koseki Junichi
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Challenging Research (Pioneering)
- Review Section
  
  Medium-sized Section 22:Civil engineering and related fields
- Research Institution
  The University of Tokyo
Enhanced analysis of elastic wave propagation and development of soil health monitoring systemPrincipal Investigator
- Principal Investigator
  
  OTSUBO MASAHIDE
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 22030:Geotechnical engineering-related
- Research Institution
  The University of Tokyo
Development of 4G soil testing system with NI-NC measurement
- Principal Investigator
  
  Nishimura Satoshi
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 22030:Geotechnical engineering-related
- Research Institution
  Hokkaido University
Study on the formation and expansion of subsurface cavity due to internal erosion and evaluation of potential risk of ground cave-in
- Principal Investigator
  
  Kuwano Reiko
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 22030:Geotechnical engineering-related
- Research Institution
  The University of Tokyo
Experimental and numerical assessment of sinkhole formation and evaluation of cavity growthPrincipal Investigator
- Principal Investigator
  
  OTSUBO MASAHIDE
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Geotechnical engineering
- Research Institution
  The University of Tokyo

All 2024 2023 2022 2021 2020 2019 2018

All Journal Article Presentation

[Journal Article] Effect of particle morphology on stress and strain characteristics of granular materials during triaxial compression2024
- Author(s)
  Li Yang、Otsubo Masahide、Liu Junming、Kuwano Reiko
- Journal Title
  
  Acta Geotechnica
  
  Volume: - Issue: 5 Pages: 2753-2773
- DOI
  10.1007/s11440-023-02190-y
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Exploring the micro-to-macro response of granular soils with real particle shapes by way of μCT-aided DEM analyses2024
- Author(s)
  Li Yang、Otsubo Masahide、Angelidakis Vasileios、Kuwano Reiko、Nadimi Sadegh
- Journal Title
  
  Geotechnique
  
  Volume: In Press Pages: 1-14
- DOI
  10.1680/jgeot.23.00162
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Elastic wave velocities during triaxial shearing influenced by particle morphology2024
- Author(s)
  Li Yang、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Soils and Foundations
  
  Volume: 64 Issue: 2 Pages: 101443-101443
- DOI
  10.1016/j.sandf.2024.101443
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Machine learning models to estimate stress wave velocities of cohesionless soils during triaxial compression influenced by particle characteristics2023
- Author(s)
  Tophel Amir、Dutta Troyee Tanu、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Soil Dynamics and Earthquake Engineering
  
  Volume: 165 Pages: 107649-107649
- DOI
  10.1016/j.soildyn.2022.107649
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Characterization of soil stiffness anisotropy at small strains based on phase velocities of shear waves measured by novel testing apparatus2023
- Author(s)
  Liu Junming、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Proceedings of the 8th International Symposium on Deformation Characteristics of Geomaterials
  
  Volume: - Pages: 1-6
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Shear wave evolution in granular materials - role of wave oscillation direction2023
- Author(s)
  Liu Junming、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Smart Geotechnics for Smart Societies
  
  Volume: - Pages: 413-416
- DOI
  10.1201/9781003299127-44
- ISBN
  9781003299127
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Liquefaction characteristics in triaxial tests under various gravity environments ? DEM analyses2023
- Author(s)
  Otsubo Masahide、Chitravel Sanjei、Kuwano Reiko、Kyokawa Hiroyuki、Koseki Junichi
- Journal Title
  
  Computers and Geotechnics
  
  Volume: 156 Pages: 105245-105245
- DOI
  10.1016/j.compgeo.2023.105245
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K20538
[Journal Article] Sensitivity of G0 and stress-strain relation of geomaterials to grain shape and surface roughness2023
- Author(s)
  Otsubo Masahide、 Li Yang、Kuwano Reiko
- Journal Title
  
  Proceedings of the 8th International Symposium on Deformation Characteristics of Geomaterials
  
  Volume: - Pages: 1-6
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Effects of internal erosion on the cyclic and post-cyclic mechanical behaviours of reconstituted volcanic ash2022
- Author(s)
  Chitravel Sanjei、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Soils and Foundations
  
  Volume: 62 Issue: 2 Pages: 101111-101111
- DOI
  10.1016/j.sandf.2022.101111
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K18297, KAKENHI-PROJECT-19H02231
[Journal Article] Post-erosion mechanical responses of internally unstable gap-graded soil under drained torsional simple shear and triaxial compression2022
- Author(s)
  Chitravel Sanjei、Otsubo Masahide、Kuno Makoto、Kuwano Reiko
- Journal Title
  
  Soils and Foundations
  
  Volume: 62 Issue: 6 Pages: 101224-101224
- DOI
  10.1016/j.sandf.2022.101224
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K18297, KAKENHI-PROJECT-19H02231
[Journal Article] Linking inherent anisotropy with liquefaction phenomena of granular materials by means of DEM analysis2022
- Author(s)
  Otsubo Masahide、Chitravel Sanjei、Kuwano Reiko、Hanley Kevin J.、Kyokawa Hiroyuki、Koseki Junichi
- Journal Title
  
  Soils and Foundations
  
  Volume: 62 Issue: 5 Pages: 101202-101202
- DOI
  10.1016/j.sandf.2022.101202
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K20538
[Journal Article] Interpretation of static and dynamic Young’s moduli and Poisson’s ratio of granular assemblies under shearing2022
- Author(s)
  Li Yang、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Computers and Geotechnics
  
  Volume: 142 Pages: 104560-104560
- DOI
  10.1016/j.compgeo.2021.104560
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Anisotropy in small-strain shear modulus of granular materials: Effects of particle properties and experimental conditions2022
- Author(s)
  Liu J.、Otsubo M.、Kawaguchi Y.、Kuwano R.
- Journal Title
  
  Soils and Foundations
  
  Volume: 62 Issue: 1 Pages: 101105-101105
- DOI
  10.1016/j.sandf.2021.101105
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Transition of gap-graded soil fabric ? shear wave measurements and dispersion relation2022
- Author(s)
  Li Yang、Otsubo Masahide、Ghaemi Arian、Dutta Troyee Tanu、Kuwano Reiko
- Journal Title
  
  Soils and Foundations
  
  Volume: 62 Issue: 1 Pages: 101092-101092
- DOI
  10.1016/j.sandf.2021.101092
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Microscopic insight into the soil fabric during load-unload correlated with stress waves2022
- Author(s)
  Li Yang、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022)
  
  Volume: - Pages: 2204-2211
- DOI
  10.1007/978-3-031-11898-2_204
- ISBN
  9783031118975, 9783031118982
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] Evaluation of soil fabric using elastic waves during load-unload2022
- Author(s)
  Li Yang、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Journal of Rock Mechanics and Geotechnical Engineering
  
  Volume: In Press Issue: 10 Pages: 1-14
- DOI
  10.1016/j.jrmge.2022.12.004
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K14322
[Journal Article] DEM analysis on the stress wave response of spherical particle assemblies under triaxial compression2021
- Author(s)
  Li Yang、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Computers and Geotechnics
  
  Volume: 133 Pages: 104043-104043
- DOI
  10.1016/j.compgeo.2021.104043
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Microscopic investigation into liquefaction resistance of pre-sheared sand2021
- Author(s)
  Morimoto, T., Otsubo, M. and Koseki, J.
- Journal Title
  
  Soils and Foundations
  
  Volume: 61 (2) Issue: 2 Pages: 335-351
- DOI
  10.1016/j.sandf.2020.12.008
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K20538
[Journal Article] Experimental study on stiffness degradation and monotonic response of reconstituted volcanic ash induced by internal erosion2021
- Author(s)
  Chitravel Sanjei、Otsubo Masahide、Kuwano Reiko
- Journal Title
  
  Soils and Foundations
  
  Volume: 61 Issue: 5 Pages: 1431-1452
- DOI
  10.1016/j.sandf.2021.08.003
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H02231
[Journal Article] Using geophysical data to quantify stress transmission in gap-graded granular materials2021
- Author(s)
  Otsubo Masahide、Kuwano Reiko、O'Sullivan Catherine、Shire Thomas
- Journal Title
  
  Geotechnique
  
  Volume: - Issue: 7 Pages: 1-18
- DOI
  10.1680/jgeot.19.p.334
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Effect of shearing history on stress wave velocities of sands observed in triaxial compression tests2021
- Author(s)
  Dutta T.T.、Otsubo M.、Kuwano R.
- Journal Title
  
  Soils and Foundations
  
  Volume: 61 Issue: 2 Pages: 541-548
- DOI
  10.1016/j.sandf.2021.02.002
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Surface-wave survey at a ground cave-in site in Abira town, Hokkaido2021
- Author(s)
  唐崎遥平、桑野玲子、大坪正英
- Journal Title
  
  SEISAN KENKYU
  
  Volume: 73 Issue: 5 Pages: 367-369
- DOI
  10.11188/seisankenkyu.73.367
- NAID
  130008123203
- ISSN
  0037-105X, 1881-2058
- Year and Date
  2021-11-01
- Language
  Japanese
- Open Access
- Data Source
  KAKENHI-PROJECT-19H02231
[Journal Article] An experimental study on small suction of sand particles and its contribution to the stability of cavity2021
- Author(s)
  横山大智, 桑野玲子, 大坪正英, 久野洵
- Journal Title
  
  SEISAN KENKYU
  
  Volume: 73 Issue: 5 Pages: 359-362
- DOI
  10.11188/seisankenkyu.73.359
- NAID
  130008123200
- ISSN
  0037-105X, 1881-2058
- Year and Date
  2021-11-01
- Language
  Japanese
- Open Access
- Data Source
  KAKENHI-PROJECT-19H02231
[Journal Article] Stress wave transmission and frequency-domain responses of gap-graded cohesionless soils2021
- Author(s)
  Dutta T.T.、Otsubo M.、Kuwano R.
- Journal Title
  
  Soils and Foundations
  
  Volume: 61 Issue: 3 Pages: 857-873
- DOI
  10.1016/j.sandf.2021.03.003
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Evolution of shear wave velocity during triaxial compression2020
- Author(s)
  Dutta T.T.、Otsubo M.、Kuwano R.、O'Sullivan C.
- Journal Title
  
  Soils and Foundations
  
  Volume: 60 Issue: 6 Pages: 1357-1370
- DOI
  10.1016/j.sandf.2020.07.008
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Laboratory element tests on dynamic responses of gap-graded silica sand2020
- Author(s)
  大坪正英, デュッタトロイータヌ, ガエムアリアン, リヤン, 桑野玲子
- Journal Title
  
  SEISAN KENKYU
  
  Volume: 72 Issue: 6 Pages: 387-390
- DOI
  10.11188/seisankenkyu.72.387
- NAID
  130007957049
- ISSN
  0037-105X, 1881-2058
- Year and Date
  2020-11-01
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H02230
[Journal Article] 地中空洞まわりの応力伝達経路の影響を考慮したDEM弾性波伝播解析2020
- Author(s)
  中田祐輔、ウマイルアリ、桑野玲子、大坪正英
- Journal Title
  
  生産研究
  
  Volume: 72 Pages: 397-400
- NAID
  130007957053
- Open Access
- Data Source
  KAKENHI-PROJECT-19H02231
[Journal Article] An experimental study on the influence of particle shape on the mechanical behaviour of granular materials2020
- Author(s)
  Y. Li, M. Otsubo, R. Kuwano
- Journal Title
  
  SEISAN KENKYU
  
  Volume: 72 Issue: 6 Pages: 391-395
- DOI
  10.11188/seisankenkyu.72.391
- NAID
  130007957052
- ISSN
  0037-105X, 1881-2058
- Year and Date
  2020-11-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H02230
[Journal Article] Anisotropy of elastic wave velocity influenced by particle shape and fabric anisotropy under K0 condition2020
- Author(s)
  Otsubo Masahide、Liu Junming、Kawaguchi Yuichiro、Dutta Troyee Tanu、Kuwano Reiko
- Journal Title
  
  Computers and Geotechnics
  
  Volume: 128 Pages: 103775-103775
- DOI
  10.1016/j.compgeo.2020.103775
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Estimating multidirectional stiffness of soils using planar piezoelectric transducers in a large triaxial apparatus2020
- Author(s)
  Dutta T.T.、Otsubo M.、Kuwano R.、Sato T.
- Journal Title
  
  Soils and Foundations
  
  Volume: 60 Issue: 5 Pages: 1269-1286
- DOI
  10.1016/j.sandf.2020.08.002
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] Particle-scale insight into soil arching under trapdoor condition2020
- Author(s)
  Ali,U. Otsubo, M., Ebizuka,H. & Kuwano,R.
- Journal Title
  
  Soil and Foundations
  
  Volume: 60 Issue: 5 Pages: 1171-1188
- DOI
  10.1016/j.sandf.2020.06.011
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H02231
[Journal Article] Suction-Tension model for verifying ground cavity formation using discrete element method2019
- Author(s)
  Umair Ali, Masahide Otsubo, Reiko Kuwano
- Journal Title
  
  Proceedings of 15th International Conference on Geotechnical Engineering
  
  Volume: - Pages: 306-313
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Stress wave velocity in soils: Apparent grain-size effect and optimum input frequencies2019
- Author(s)
  Troyee Tanu Dutta, Masahide Otsubo, Reiko Kuwano, Catherine O'Sullivan
- Journal Title
  
  Geotechnique Letters
  
  Volume: 9(4) Issue: 4 Pages: 340-347
- DOI
  10.1680/jgele.18.00219
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084, KAKENHI-PROJECT-19H02230
[Journal Article] A fundamental study on dynamic wave propagation in the soil around a cavity2019
- Author(s)
  Yusuke, Nakata, Reiko, Kuwano, Masahide Otsubo, Umair Ali
- Journal Title
  
  18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia (USMCA)
  
  Volume: - Pages: 128-135
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] A study on arching mechanism in trapdoor model test and equivalent discrete element simulations2019
- Author(s)
  Umair Ali, Masahide Otsubo
- Journal Title
  
  The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (16ARC)
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Particle-scale insight into transitional behaviour of gap-graded materials: small-strain stiffness and frequency response2019
- Author(s)
  Masahide Otsubo, Troyee Tanu Dutta, Manushak Durgalian, Reiko Kuwano, Catherine O'Sullivan
- Journal Title
  
  E3S Web of Conferences, 7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
  
  Volume: 92(14006) Pages: 14006-14006
- DOI
  10.1051/e3sconf/20199214006
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Anisotropy of shear wave velocity : Role of grain shape2019
- Author(s)
  Masahide Otsubo, Junming Liu, Troyee Tanu Duuta, Yuichiro Kawaguchi, Reiko Kuwano
- Journal Title
  
  Proceedings of 9th Asian Young Geotechnical Engineers Conference
  
  Volume: - Pages: 116-122
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Development of vertical and horizontal disk transducers for wave velocity measurements in a large rectangular specimen2019
- Author(s)
  Troyee Tanu Dutta, Masahide Otsubo, Reiko Kuwano, Takeshi Sato
- Journal Title
  
  E3S Web of Conferences, 7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
  
  Volume: 92(02001) Pages: 02001-02001
- DOI
  10.1051/e3sconf/20199202001
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K15084
[Journal Article] Assessment of elastic wave velocities through granular soils during monotonic loading2019
- Author(s)
  Troyee Tanu Dutta, Masahide Otsubo
- Journal Title
  
  The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (16ARC)
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Relating dynamic properties of gap-graded soils to the stress transmission in soil fabric2022
- Author(s)
  Masahide Otsubo, Arian Ghaemi, Yang Li, Troyee Tanu Dutta, Reiko Kuwano
- Organizer
  The 7th International Young Geotechnical Engineers Conference (7iYGEC)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Effects of particle shape and orientation on anisotropy of granular materials observed in elastic wave velocities2022
- Author(s)
  Junming Liu, Masahide Otsubo, Yuichiro Kawaguchi, Reiko Kuwano
- Organizer
  The 20th International Conference on Soil Mechanics and Geotechnical Engineering (ICMGE2022)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Possibility of using shear wave oscillation direction to predict soil inner fabric2022
- Author(s)
  Junming Liu, Masahide Otsubo, Reiko Kuwano
- Organizer
  土木学会第77回年次学術講演会
- Data Source
  KAKENHI-PROJECT-22K14322
[Presentation] Influence of soil arching and loosening around a subsurface cavity on wave propagation2022
- Author(s)
  Yusuke Nakata, Umair Ali, Masahide Otsubo, Reiko Kuwano
- Organizer
  The 20th International Conference on Soil Mechanics and Geotechnical Engineering (ICMGE2022)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 異なる重力環境下での液状化挙動に関するDEM解析2022
- Author(s)
  大坪正英，桑野玲子，京川裕之，古関潤一
- Organizer
  第57 回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-20K20538
[Presentation] 弾性波伝播特性に着目した深部空洞探査可能性の検討2022
- Author(s)
  唐崎遥平, 久野洵, 大坪正英, 桑野玲子
- Organizer
  第57回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-22K14322
[Presentation] Effect of granular particle morphology on mechanical responses under consistent tapping method2022
- Author(s)
  Yang Li, Masahide Otsubo, Reiko Kuwano
- Organizer
  土木学会第77回年次学術講演会
- Data Source
  KAKENHI-PROJECT-22K14322
[Presentation] The Influence of Particle Orientation on the Anisotropy of Shear Wave Velocity Observed in Elongated Particles2021
- Author(s)
  Liu J., Otsubo M. & Kuwano R.
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] 局所的なゆるみを有する地盤内の弾性波伝播に関する個別要素法解析2021
- Author(s)
  中田祐輔、桑野玲子、大坪正英
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19H02231
[Presentation] The influence of particle orientation on the anisotropy of shear wave velocity observed in elongated particles2021
- Author(s)
  Junming Liu, 大坪正英, 桑野玲子
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Stress Wave Response of Spherical Granular Assemblies During Triaxial Compression: A DEM Case Study2021
- Author(s)
  Li, Y., Otsubo, M. and Kuwano,R.
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] 三軸せん断におけるガラスビーズ材料の動的特性に関する表面粗度の影響2021
- Author(s)
  Li Yang, 大坪正英, 桑野玲子
- Organizer
  第56回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 粒状体の剛性計測に現れる異方性 - 境界条件の影響2021
- Author(s)
  Liu Junming, 大坪正英, 桑野玲子
- Organizer
  第56回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 砂の弾性波伝播特性に及ぼす粒径と粒度の影響2021
- Author(s)
  大坪正英, Yang Li, Dutta Troyee Tanu, 桑野玲子
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Stress wave responses of spherical granular assemblies during triaxial compression: a DEM case study2021
- Author(s)
  Yang Li, 大坪正英, 桑野玲子
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 模型実験で観察された砂地盤内の空洞の発達過程と陥没メカニズム2021
- Author(s)
  桑野玲子、大坪正英、Li Yang, Chitravel Sanjei, Liu Junming、横山大智、唐崎遥平
- Organizer
  第56回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19H02231
[Presentation] 局所的なゆるみを有する地盤内の弾性波伝播に関する個別要素法解析2021
- Author(s)
  中田祐輔, 桑野玲子, 大坪正英
- Organizer
  土木学会第76回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 粒状体の剛性計測に現れる異方性・境界条件の影響2021
- Author(s)
  Liu,Junming・大坪正英・桑野玲子
- Organizer
  第56回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] Effect of locally loosened soil on wave propagation2021
- Author(s)
  Masahide Otsubo, Yusuke Nakata, Umair Ali, Reiko Kuwano
- Organizer
  The 6th International conference on geotechnical and geophysical site characterisation (ISC’6)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] せん断波速度に現れる粒状体の異方性と粒子形状の関係2020
- Author(s)
  Junming Liu, 川口勇一郎, 大坪正英, 桑野玲子
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] 地中空洞周りのアーチング及びゆるみの影響を考慮したDEM弾性波伝播解析2020
- Author(s)
  中田祐輔, 大坪正英, 桑野玲子
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19H02231
[Presentation] 地中空洞周りのアーチング及びゆるみの影響を考慮したDEM弾性波伝播解析2020
- Author(s)
  中田祐輔, 桑野玲子, 大坪正英
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] The anisotropy of shear wave velocity observed for elongated particles2020
- Author(s)
  Junming Liu , Masahide Otsubo , Yuichiro Kawaguchi , Reiko Kuwano
- Organizer
  土木学会第75回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] ギャップグレード硅砂の弾性波応答特性に関する実験的研究2020
- Author(s)
  大坪正英, Arian Ghaemi, 桑野玲子
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] ギャップグレード硅砂の弾性波応答特性に関する実験的研究2020
- Author(s)
  大坪正英, Arian Ghaemi, 桑野玲子
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 全方向ディスクトランスデューサー及びロードセルを搭載した立方体土槽の開発2020
- Author(s)
  川口勇一郎, 桑野玲子, 大坪正英
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Effects of particle shape and roughness on mechanical responses of granular materials in triaxial tests2020
- Author(s)
  Yang Li, Masahide Otsubo, Reiko Kuwano
- Organizer
  土木学会第75回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Effects of particle shape and roughness on mechanical responses of granular materials in triaxial tests2020
- Author(s)
  Yang Li, Masahide Otsubo, Reiko Kuwano
- Organizer
  土木学会第75回年次学術講演会
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] せん断波速度に現れる粒状体の異方性と粒子形状の関係2020
- Author(s)
  Junming Liu, 川口勇一郎, 大坪正英, 桑野玲子
- Organizer
  第55回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 個別要素法解析による粒状体地盤材料の弾性波速度異方性に関する基礎的研究2019
- Author(s)
  大坪正英, 川口勇一郎, Troyee Tanu Dutta, 劉俊銘, 桑野玲子
- Organizer
  土木学会第74回年次学術講演会（高松）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 弾性波周波数解析に基づく細粒分骨格構造寄与度の評価2019
- Author(s)
  大坪正英, 桑野玲子, Troyee Tanu Dutta, Manushak Durgalian, Catherine O'Sullivan
- Organizer
  第54回地盤工学研究発表会（埼玉）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Assessment of elastic wave velocities through granular soils during monotonic loading2019
- Author(s)
  Troyee Tanu Dutta, Masahide Otsubo
- Organizer
  The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (16ARC)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Experimental Investigation on Mechanism of Internal Erosion and Development of Underground Cavities2019
- Author(s)
  Kuwano,R., Santa, L. Bedja, M. Otsubo, M. and Ohara,Y.
- Organizer
  7th International Symposium on Deformation Characteristics of Geomaterials, IS Glasgow2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02231
[Presentation] A novel test setup for assessing multidirectional small-strain stiffness of a large rectangular specimen using disk transducers2019
- Author(s)
  Troyee Tanu Dutta, 大坪正英, 桑野玲子, Manushak Durgalian, 佐藤剛司
- Organizer
  第54回地盤工学研究発表会（埼玉）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 地中空洞周りの波動伝播特性に関する個別要素法解析2019
- Author(s)
  中田祐輔, 桑野玲子, 大坪正英
- Organizer
  土木学会第74回年次学術講演会
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Discrete element modelling of elastic wave propagation through granular materials for laboratory shear plate tests2019
- Author(s)
  Masahide Otsubo, Troyee Tanu Dutta, Yuichiro Kawaguchi, Reiko Kuwano, Catherine O’Sullivan
- Organizer
  8th International Conference on Discrete Element Methods (DEM8)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Micromechanical insight into stability of subsurface cavity2019
- Author(s)
  Masahide Otsubo, Umair Ali, Reiko Kuwano
- Organizer
  18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia (USMCA)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Anisotropy of shear wave velocity : Role of grain shape2019
- Author(s)
  Masahide Otsubo, Junming Liu, Troyee Tanu Duuta, Yuichiro Kawaguchi, Reiko Kuwano
- Organizer
  9th Asian Young Geotechnical Engineers Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Development of cubic soil chamber fitted with multi-directional disk transducers2019
- Author(s)
  Yuichiro Kawaguchi, Masahide Otsubo, Reiko Kuwano
- Organizer
  18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia (USMCA)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 全方向ディスクトランスデューサーを搭載した立方体土槽の開発2019
- Author(s)
  川口勇一郎, 大坪正英, Troyee Tanu Dutta, 桑野玲子
- Organizer
  土木学会第74回年次学術講演会（高松）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 弾性波伝播特性における地盤内空洞の影響に関する基礎的検討2019
- Author(s)
  中田祐輔, 桑野玲子, 大坪正英
- Organizer
  第54回地盤工学研究発表会（埼玉）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] A study on arching mechanism in trapdoor model test and equivalent discrete element simulations2019
- Author(s)
  Umair Ali, Masahide Otsubo
- Organizer
  The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (16ARC)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] A study on arching mechanism in trapdoor model test and equivalent discrete element simulations2019
- Author(s)
  Umair Ali, Masahide Otsubo
- Organizer
  The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (16ARC)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Development of vertical and horizontal disk transducers for wave velocity measurements in a large rectangular specimen2019
- Author(s)
  Troyee Tanu Dutta, Masahide Otsubo, Reiko Kuwano and Takeshi Sato
- Organizer
  7th International Symposium on Deformation Characteristics of Geomaterials
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] Implementation of suction-tension model for cavity simulations using DEM2019
- Author(s)
  Umair Ali, 大坪正英, 桑野玲子
- Organizer
  第54回地盤工学研究発表会（埼玉）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 弾性波伝播特性における地盤内空洞の影響に関する基礎的検討2019
- Author(s)
  中田祐輔, 大坪正英, Umair Ali, 桑野玲子
- Organizer
  第54回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Suction-Tension model for verifying ground cavity formation using discrete element method2019
- Author(s)
  Umair Ali, Masahide Otsubo, Reiko Kuwano
- Organizer
  15th International Conference on Geotechnical Engineering
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Assessment of elastic wave velocities through granular soils during monotonic loading2019
- Author(s)
  Troyee Tanu Dutta and Masahide Otsubo
- Organizer
  The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] Particle-scale analysis of soil arching during underground cavity formation using suction-tension model in DEM2019
- Author(s)
  Umair Ali, Masahide Otsubo, Reiko Kuwano
- Organizer
  8th International Conference on Discrete Element Methods (DEM8)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Effect of median particle size on S-wave velocity and frequency domain responses of granular materials2019
- Author(s)
  Troyee Tanu Dutta, 大坪正英, 桑野玲子
- Organizer
  土木学会第74回年次学術講演会（高松）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] A fundamental study on dynamic wave propagation in the soil around a cavity2019
- Author(s)
  Yusuke, Nakata, Reiko, Kuwano, Masahide Otsubo, Umair Ali
- Organizer
  18th International Symposium on New Technologies For Urban Safety of Mega Cities in Asia (USMCA)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] 地中空洞周りの波動伝播特性に関する個別要素法解析2019
- Author(s)
  中田祐輔, 大坪正英, Umair Ali, 桑野玲子
- Organizer
  土木学会第74回年次学術講演会（高松）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Small-strain characterisation; New tools and multi-dimensional perspective2019
- Author(s)
  Satoshi Nishimura, Reiko Kuwano and Masahide Otsubo
- Organizer
  7th International Symposium on Deformation Characteristics of Geomaterials
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02230
[Presentation] 弾性波計測技術の高度化に向けたディスクトランスデューサーの最適形状に関する検討2019
- Author(s)
  川口勇一郎, 桑野玲子, 大坪正英
- Organizer
  第54回地盤工学研究発表会（埼玉）
- Data Source
  KAKENHI-PROJECT-19K15084
[Presentation] Arch formation during trapdoor tests - Experimental and numerical verification2018
- Author(s)
  Umair Ali, 大坪正英, 桑野玲子
- Organizer
  第53回地盤工学研究発表会
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Numerical assessment on shear wave propagation through narrowly gap-graded packing2018
- Author(s)
  Masahide Otsubo, Reiko Kuwano, Catherine O’Sullivan
- Organizer
  6th European Conference on Computational Mechanics, 7th European Conference on Computational Fluid Dynamics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] 地中空洞生成に伴う周辺地盤のゆるみに関する個別要素法解析2018
- Author(s)
  大坪正英, Umair Ali, 桑野玲子
- Organizer
  土木学会第73回年次学術講演会
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Trapdoor model test and DEM simulation associated with arching2018
- Author(s)
  Masahide Otsubo, Reiko Kuwano, Umair Ali, Hiroaki Ebizuka
- Organizer
  9th International Conference on Physical Modelling in Geotechnics 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Numerical assessment on shear wave propagation through narrowly gap-graded packing2018
- Author(s)
  Masahide Otsubo
- Organizer
  6th European Conference on Computational Mechanics, 7th European Conference on Computational Fluid Dynamics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Trapdoor model test and DEM simulation associated with arching2018
- Author(s)
  Masahide Otsubo
- Organizer
  9th International Conference on Physical Modelling in Geotechnics 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06613
[Presentation] Verification of trapdoor discrete element method simulation2018
- Author(s)
  Umair Ali, Masahide Otsubo, Reiko Kuwano
- Organizer
  6th European Conference on Computational Mechanics, 7th European Conference on Computational Fluid Dynamics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06613

1. Kuwano Reiko (80312974)

# of Collaborated Projects: 4 results

# of Collaborated Products: 24 results
2. Nishimura Satoshi (70470127)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
3. Koseki Junichi (30272511)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
4. 京川裕之 (60799865)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
5. 竹内渉 (50451878)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 渡邉健治 (80425925)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 佐藤樹 (20965628)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. O'Sullivan Catherine

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. Hanley Kevin J.

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Otsubo Masahide 大坪 正英

OTSUBO MASAHIDE 大坪 正英

Research Projects

Research Products

Co-Researchers

超高間隙構造土の骨格構造の崩壊に伴うせん断抵抗の消失および流動ポテンシャルの評価

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Developing health monitoring and prediction techniques of soil behaviours based on dynamic wave signalsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Measurement of shear properties of granular media under extremely low confining stress states aiming at drastic innovation of modelling of liquefaction characteristics of sands

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Enhanced analysis of elastic wave propagation and development of soil health monitoring systemPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of 4G soil testing system with NI-NC measurement

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Study on the formation and expansion of subsurface cavity due to internal erosion and evaluation of potential risk of ground cave-in

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Experimental and numerical assessment of sinkhole formation and evaluation of cavity growthPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Effect of particle morphology on stress and strain characteristics of granular materials during triaxial compression2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Exploring the micro-to-macro response of granular soils with real particle shapes by way of μCT-aided DEM analyses2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Elastic wave velocities during triaxial shearing influenced by particle morphology2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Machine learning models to estimate stress wave velocities of cohesionless soils during triaxial compression influenced by particle characteristics2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Characterization of soil stiffness anisotropy at small strains based on phase velocities of shear waves measured by novel testing apparatus2023

Author(s)

Journal Title

Data Source

[Journal Article] Shear wave evolution in granular materials - role of wave oscillation direction2023

Author(s)

Journal Title

DOI

ISBN

Data Source

[Journal Article] Liquefaction characteristics in triaxial tests under various gravity environments ? DEM analyses2023

Author(s)

Journal Title

Otsubo Masahide 大坪正英

OTSUBO MASAHIDE 大坪正英