Teacher Profiles
YAMAGUCHI, Akira Professor (Geotechnical Engineering)
| degree | Doctor of Engineering (Tohoku University, March 2001) |
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| Specialty | Geotechnical Engineering Research Field |
| Affiliated academic societies | Japan Society of Civil Engineers, Japanese Geotechnical Society, Japan Earthquake Engineering Society |
| others | April 5, 1973 (Showa 48) Hometown: Matsudo City, Chiba Prefecture Registered domicile: Miyagi Prefecture |
| Subjects Taught | Geotechnical Mechanics I, Surveying I, Environmental Construction Engineering Experiments |
Career
| April 1998 (Heisei 10) | Admission to the doctoral program Graduate School of Engineering of Engineering, Tohoku Graduate Schools. |
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| April 1998 (Heisei 10) | Appointed as a Special Research Fellow of the Japan Society for the Promotion of Science |
| April 2001 (Heisei 13) | Appointed as an assistant professor in Faculty of Engineering Tohoku Gakuin University. |
| April 2002 (Heisei 14) | Promoted to Lecturer in the Department of Environmental Civil Engineering, Faculty of Engineering Tohoku Gakuin University |
| April 2006 (Heisei 18) | Promoted to Assistant Professor, Department Department of Civil and Environmental Engineering Faculty of Engineering Tohoku Gakuin University |
| April 2007 (Heisei 19) | Title changed from Assistant Professor to Associate Professor |
| April 2009 (Heisei 21) - March 2010 (Heisei 22) |
Visiting Professor, Ruhr University Bochum, Germany |
| April 2015 (Heisei 27) | Promoted to Professor in Faculty of Engineering Department of Civil and Environmental Engineering, Tohoku Gakuin University |
| From April 2025 (Reiwa 7) | Head of the Department Department of Civil and Environmental Engineering Science, Faculty of Faculty of Engineering Tohoku Gakuin University |
performance
List of peer-reviewed papers
- M. Kazama, A. Yamaguchi and E. Yanagisawa: Seismic behavior of an underlying alluvial clay on man-made islands during the 1995 Hyogoken-Nambu earthquake, Special Issue of Soils and Foundations, pp.23-32, 1998.
- Akira Yamaguchi, Motoki Kazama, and Eiji Yanagisawa: Seismic shear behavior of alluvial clay layers in the Kobe artificial island using undisturbed alluvial clay samples, Proceedings of the 10th Japan Symposium on Earthquake Engineering, Vol. 1, pp. 1135-1140, 1998.
- M. Kazama, A. Yamaguchi and E. Yanagisawa: Liquefaction resistance from a ductility viewpoint, Soils and Foundations,Vol.40, No.6, pp.47-60, 2000.
- A. Ymaguti, M. Kazama, H. Toyota, M. Kitazume and T. Sugano: Effects of the stiffness of of soft clay layer on strong motion response, Soils and Foundations, Vol.42, No.1, pp.17-33, 2002.
- Akira Yamaguchi, Motoki Kazama, and Shin Kusakabe: Online seismic response experiment on the ground of an artificial island off the coast of Kobe, Transactions of the Japan Society of Civil Engineers, No. 701/III-58, pp. 17-33, 2002.
- Noriaki Sendo, Akira Yamaguchi, Motoki Kazama, Ryosuke Uzuoka: Shear deformation development characteristics during pore water inflow in sand after undrained cyclic shear history, Proceedings of the 11th Japan Earthquake Engineering Symposium, CD-ROM, pp. 807-812, 2002.
- Akira Yamaguchi, Noriaki Sendo, Motoki Kazama, and Yoshio Tobita: Hybrid seismic response experiment on a reclaimed artificial island using in-situ samples, Proceedings of the 11th Japan Symposium on Earthquake Engineering, CD-ROM, pp. 791-796, 2002.
- Motoki Kazama, Noriaki Sendo, Akira Yamaguchi, and Ryosuke Uzuoka: Application of Online Experimental Methods in Geotechnical Earthquake Engineering, Soil and Foundation, Vol. 51, No. 2, pp. 19-22, 2003.
- Yoshio Tobita, Akira Yamaguchi, Nobuaki Fujii, and Mizuo Kanehara: A simple method for representing the anisotropic behavior of engineering materials: Application of the modified stress method to geotechnical materials, Journal of Applied Mechanics, Japan Society of Civil Engineers, Vol. 6, pp. 407-418, 2003.
- Y. Tobita, A. Yamaguchi, N. Fujii and O. Nishimura: Description of Anisotropic Behavior of Sand through the Modified Stress Method COMPUTATIONAL MECHANICS, WCCM VI in conjunction with APCOM'04, Beijing, 2004.
- Akira Yamaguchi, Yoshio Tobita, and Motoki Kazama: Shear deformation characteristics of soil subjected to pore water inflow after undrained cyclic shearing history, Transactions of the Japan Society of Civil Engineers, No. 778/III-69, pp. 139-150, 2004.
- Akira Yamaguchi, Motoki Kazama, and Yoshio Tobita: Maximum acceleration response of ground with soft cohesive soil layers, Proceedings of the 50th Geotechnical Symposium, 2005, pp. 441-448. 2005.
- Akira Yamaguchi, Nozomu Yoshida, and Yoshio Tobita: On the influence of liquefaction depth on sand boils, Proceedings of the 12th Japan Earthquake Engineering Symposium, CD-ROM, pp. 710-713, 2006.
- Akira Yamaguchi, Nozomu Yoshida, and Yoshio Tobita: Relationship between shear characteristics of soft clayey ground and ground behavior during earthquakes, Transactions of the Japan Association for Earthquake Engineering, Vol. 7, No. 1, pp. 1-13, 2007, 1.
- Akira Yamaguchi, Nozomi Yoshida, and Yoshio Tobita: Relationship between sand boils associated with liquefaction and liquefaction layer thickness, Journal of Japan Society of Civil Engineers, Series C, Vol. 64, No. 1, pp. 79-89, 2008.
- Akira Yamaguchi, Nozomu Yoshida, and Yoshio Tobita: Experimental study on the reliquefaction mechanism, Transactions of the Japan Association for Earthquake Engineering, Vol. 8, No. 3, pp. 46-62, 2008.
- Akira Yamaguchi, Nozomi Yoshida, and Yoshio Tobita: The effect of soil particle fall in water on reliquefaction, Journal of Japan Society of Civil Engineers, Series C, Vol. 66, No. 2, pp. 407-417, 2010.
- Nozomi Yoshida, Akira Yamaguchi, and Katsumi Chiba: Ground damage in the central Miyagi Prefecture area caused by the 2011 Tohoku earthquake and tsunami, Japanese Journal of Geotechnical Engineering, Vol. 7, Mo. 1, pp. 57-66, 2012.
- Akira Yamaguchi, Nozomu Yoshida, and Yoshio Tobita: Sand boils around the Naruse River and Yoshida River during the 2011 Tohoku Earthquake, Japanese Geotechnical Society Journal, Vol. 7, Mo. 1, pp. 243-251, 2012.
- A. Yamaguchi, T. Mori, M. Kazama, N. Yoshida: Liquefaction in Tohoku district during the 2011 off the Pacific Coast of Tohoku Earthquake, Soils and Foundations, pp.811-829, Vol.52, Issue 5, 2012.
- Kazunari Okada, Toru Watanabe, Toru Takada, Akira Yamaguchi, and Yoshio Tobita: Evaluation Examples of Suspension-Type Grout-Injected Solidified Ground Using Dynamic Sounding, Proceedings of the Symposium on Design, Construction, and Testing Methods of Chemical Injection Methods, pp. 224-227, 2015.
- Akira Yamaguchi, Kazunari Okada, and Yoshio Tobita: One-dimensional penetration experiment and unconfined compressive strength of ultrafine particle spherical silica-based soil improver, Proceedings of the 12th Symposium on Ground Improvement, pp. 207-214, 2016.
- Yamaguchi, A., Okada, K., & Tobita, Y.: Estimation of uniaxial compressive strength of ground improved with ultrafine particle spherical silica-based injection material, Materials Supplement Vol. 67 No. 1, pp. 53-58, 2018.
- Akira Yamaguchi, Kazunari Okada, Tsutomu Yokoi, Yukio Ao, Tomohiko Kanazawa, and Yoshio Tobita: Uniaxial compressive strength of injection specimens using ultrafine particle cement injection material, Proceedings of the 13th Symposium on Ground Improvement, pp. 241-248, 2018.
- Akira Yamaguchi, Yukihiro Yamane, Yuki Takeda, and Keiji Omori: Effect of two-stage addition and mixing of cement-based soil improver on the unconfined compressive strength of improved organic soil, Proceedings of the 14th Symposium on Ground Improvement, pp. 1-6, 2019.
- Motoki Kazama, Yuki Yamakawa, Akira Yamaguchi, Shotaro Yamada a, Akiyoshi Kamura, Tomonori Hino, Shuji Moriguchi: Disaster report on geotechnical damage in Miyagi Prefecture, Japan caused by Typhoon Hagibis in 2019, Soils and Foundations, Volume 61, Issue 2, Pages 549-565, 2021.
- Akira Yamaguchi, Toshihiko Takeda, Yukihiro Yamane, Tomohiro Hasuka, Yuki Yamakawa, and Takumi Sayama: Soil tank experiments on the tip penetration amount of the improved body in the vertical rotary agitation mixing treatment method, Proceedings of the 15th Symposium on Ground Improvement, pp. 23-26, 2022.
- Takumi Sayama, Yuki Yamakawa, Toshihiko Takeda, Norishige Matsui, Yukihiro Yamane, and Akira Yamaguchi: Numerical Analysis Study on Tip Penetration Amount of Improved Piles in Vertical Rotary Mixing Treatment Method, Proceedings of the 15th Symposium on Ground Improvement, pp. 57-62, 2022.
- Akira Yamaguchi, Jun Ito, Yoshitaka Katada, and Koji Ogawa: Cone index and unconfined compressive strength of bentonite improved with fly ash-based ground improvement material, Proceedings of the 16th Symposium on Ground Improvement, pp. 557-563, 2024.
- Yui Yagisawa, Yuki Yamakawa, Toshihiko Takeda, Michitsugu Matsui, Yukihiro Yamane, and Akira Yamaguchi: Influence of tip penetration depth and soil properties on the bearing capacity of improved piles using the vertical rotary agitation mixing method, Proceedings of the 16th Symposium on Ground Improvement, pp. 207-212, 2024.
Other papers, international conferences, etc.
- Motoki Kazama, Masaaki Masuda, Akira Yamaguchi, and Eiji Yanagisawa: Estimation of liquefaction strength of the weathered granite layer of Kobe Port Island, Proceedings of the 24th Earthquake Engineering Research Conference, Kobe International Conference Center, pp. 465-468, 1997.
- M. Kazama, E. Yanagisawa and A. Yamaguchi: Seismic behavior of the alluvial clay layer at Kobe Port Island during the 1995 Hyogoken-Nanbu Earthquake, Proc. of Discussion Special Technical Session on Earthquake Geotechnical Engineering During 14th International Conference on Soil Mechanics and Foundation Engineering, pp.51-60, 1998.
- M. Kazama, M. Masuda, A. Yamaguchi and E. Yanagisawa: Liquefaction Strength of Decomposed Granite Soil Inferred From Array Records, Engineering Mechanics, A Force for the 21st century, Proceedings of the 12th Engineering Mechanics Conference,CD-ROM, pp.478-481, 1998.
- A. Yamaguchi, M. Kazama, H. Toyota, M. Kitazume & T. Sugano: Reproduction of array observation records by means of centrifuge shaking table model, 4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, CD-ROM, 2001.
- Akira Yamaguchi, Yoshio Tobita, Hideo Nitta, and Koji Nito: The effects of differences in shear strength of clay layers and landfill materials on the seismic behavior of reclaimed land, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol.37, No.1, pp.59-64, 2002.
- Akira Yamaguchi, Noriaki Sendo, Motoki Kazama, and Yoshio Tobita: Development of a new experimental method for predicting ground deformation caused by earthquakes, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 37, No. 1, pp. 83-88, 2002.
- Akira Yamaguchi, Kotaro Sato, Mitsutaka Aihara, Yoshio Tobita, and Hideo Nitta: A Study on Ground Flow in Gently Sloping Ground After Seismic Motion, Research Reports of Faculty of Engineering, Tohoku Gakuin University, Vol. 38, No. 1, pp. 13-18, 2003.
- Joint Investigation Team of the Japanese Geotechnical Society Disaster Liaison Committee and the Japanese Society of Civil Engineers: Emergency Investigation Report on the Earthquake Disaster that Occurred Off the Coast of Miyagi Prefecture on May 26, 2003, Journal of the Japanese Geotechnical Society, Vol. 51, No. 8, 2003.
- Mizuo Kanehara, Yusuke Kariba, Yoshio Tobita, and Akira Yamaguchi: Liquefaction investigation report in Hamamachi district, Naruse town, Miyagi prefecture, during the 2003 series of earthquakes in northern Miyagi Prefecture, Bulletin of the Institute for Environmental Disaster Prevention Engineering, Tohoku Gakuin University, No. 15, pp. 75-84, 2004.
- M. Kazama, N. Sento, Young-cheul Kwon and A. Yamaguchi: Geotechnical hybrid simulation of liquefiable inclined ground considering pore water migration, 13th World Conference on Earthquake Engineering, Vancouver, BC, Canada, August 1-6, 2004.
- Makoto Taguchi, Akira Yamaguchi, and Yoshio Tobita: Relationship between earthquake damage to ground and soft clay layers, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 39, No. 1, pp. 105-110, 2004.
- M. Kazama and A. Yamaguchi: Seismic behavior of the ground at Kobe artificial islands inferred from experiment, International Symposium on earthquake Engineering Commemorating Tenth Anniversary of 1995 Kobe Earthquake, 2005
- Ando, T., Sato, K., Yamaguchi, A., and Tobita, Y.: A study on the shear deformation behavior of sand containing fine particles when pore water flows in. Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 39, No. 1, pp. 111-116, 2005.
- Akira Yamaguchi, Nozomu Yoshida, and Yoshio Tobita: A Study on the Sand Boiling Mechanism Associated with Liquefaction, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 41, No. 1, pp. 48-53, 2006.
- Akira Yamaguchi, Nozomi Yoshida, and Yoshio Tobita: An experimental study on factors influencing the amount of soil flow associated with liquefaction, Proceedings of the Symposium on Performance Design and Deformation Prediction of Soil Structures During Earthquakes, pp. 277-282, July 2007.
- Akira Yamaguchi, Anri Matsuura, Yuta Kaneto, Naoki Kuroda, Nozomi Yoshida, and Yoshio Tobita: The effects of structural settlement and uplift during liquefaction on sand boils, Research Reports of Faculty of Engineering, Tohoku Gakuin University, Vol. 42, No. 1-2, pp. 29-34, 2008.
- Akira Yamaguchi, Yoshihiro Okudaira, Yui Sato, Nozomi Yoshida, and Yoshio Tobita: Quantitative evaluation of ground flow mechanism and flow volume during earthquakes, Research Bulletin of Faculty of Engineering, Tohoku Gakuin University, Vol. 42, No. 1-2, pp. 35-40, 2008.
- A.Yamaguchi, N.Yoshida, Y.Tobita:Sand boiling pattern during reliquefaction,The 14th World Conference on Earthquake Engineering CD-ROM,2008.
- Akira Yamaguchi, Tomonori Hino, Nozomi Yoshida, and Yoshio Tobita: A report on liquefaction damage caused by the 2008 Iwate-Miyagi Inland Earthquake, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 43, No. 1-2, pp. 51-57, 2009.
- Akira Yamaguchi, Yuki Yokose, Satoshi Nara, Yukie Shimoita, and Yoshio Tobita: Ground deformation around Tagajo City caused by the 2011 Tohoku Earthquake, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 46, No. 1・2, pp. 23-32, 2012.
- Yoshio Tobita, Akira Yamaguchi, Tomohiro Mori, and Motoki Kazama: Damage Mechanisms of Residential Land Disaster in Sendai City and the Current Status of Countermeasure Projects, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 47, No. 1・2, pp. 24-31, 2012.
- Akira Yamaguchi, Yoshio Tobita, Yuya Sarudate, and Satoshi Nara: Shear resistance after liquefaction of sandy ground, Research Reports of Faculty of Engineering, Tohoku Gakuin University, Vol. 47, No. 1・2, pp. 32-36, 2013.
- Akira Yamaguchi: Overview of ground improvement methods, the positioning of newly developed ultrafine particle spherical silica-based soil improvers, and their mechanical properties, Bulletin of the Institute of Engineering, Tohoku Gakuin University, No. 3, pp. 7-16, 2014.
- Akira Yamaguchi, Kazunari Okada, Tsutomu Yokoi, Tetsuji Kanetaka, and Yoshio Tobita: Uniaxial compressive strength of soil improved with water glass-based injection material containing kaolin particles, Research Reports Faculty of Engineering, Tohoku Gakuin University, Vol. 53, No. 1, pp. 3-10, 2019.
- Akira Yamaguchi, Jun Ito, Yoshitaka Katada, and Koji Ogawa: Cone index of soil improved with fly ash-based soil modifier - Understanding and future application of soil modifier for the Restom method -, Research Report Faculty of Engineering, Tohoku Gakuin University, Vol. 57, No. 1, Paper 3 (Web version - no pages)
Extracurricular activities
| July 2001 (Heisei 13) - March 2009 |
Tohoku University Judo Club Coach |
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| April 2011 (Heisei 23) - March 2014 |
School Council Member, Tagajo High School |
| March 2013 (Heisei 25) - March 2023 |
Member of the Sendai City Environmental Impact Assessment Review Committee |
| May 2013 (Heisei 25) - March 2015 |
Japan Geotechnical Society Tohoku Branch Deputy Secretary General |
| May 2015 (Heisei 27) - April 2017 |
Japan Geotechnical Society Tohoku Branch Secretary General |
| April 2015 - March 2023 |
Advisor and Coach, Tohoku Gakuin University Faculty Faculty of Engineering Judo Club |
| September 2016 (Heisei 28) - | All Japan Judo Federation Certified C Instructor (Affiliated with Tomiya Judo Sports Club) |
| May 2017 (Heisei 29) - March 2023 |
Japan Geotechnical Society Tohoku Branch Secretary |
| September 2017 (Heisei 29) - October 2023 |
Member of the Sendai City Land Preservation Council and Member of the Sendai City Land Preservation Council Technical Expert Committee |
| June 2018 (Heisei 30) - June 2020 |
Geotechnical Society Director |
| From April 2020 March 2026 |
Head of Tomiya Judo Sports Club |
| From April 2020 | Director, Kurokawa Judo Association |
| From July 2022 | Kurokawa, Vice Chairman of the Judo Association |
| From February 2023 | Member of Miyagi Prefecture Environmental Council |
| From March 2023 March 2026 |
Member of the Natori City Final Disposal Site Selection Committee |
| From April 2023 April 2025 |
Geotechnical Society Tohoku Branch Commerce Member |
| From November 2023 October 2025 |
Member of the Sendai City Land Preservation Council and Chairperson of the Sendai City Land Preservation Council Technical Committee |
| From November 2024 | Chairman of the Zao Town Renewable Energy Power Generation Facility Installation Council |
| From March 2025 | Road Doctor (Ground Engineering Division), Tohoku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism |
| From April 2025 | Deputy Chief of the Tohoku Branch of the Japan Geotechnical Society |
| From April 2025 | Member of the Shiogama City Urban Planning Council, Miyagi Prefecture |
| From November 2025 | Chairperson of the Sendai City Land Preservation Council and Member of the Technical Committee of the Sendai City Land Preservation Council |
List of research fields
[Geotechnical Engineering]
- 1996-1998: Research on the impact of the dynamic strength and deformation characteristics of cohesive soil on liquefaction damage during the 1995 Great Hanshin Earthquake.
- 1998-1999: Research on differences in soil type and cumulative energy absorption trends.
- 1999-2000: Research on the influence of clay layer behavior on the liquefaction behavior of reclaimed land using the fabrication of an online testing machine and centrifugal shaking table experiments.
- 2000-2001: Research on the impact of geological strata on ground damage using online experiments.
- 2001-2006: Liquefaction of sandy ground, seismic behavior of cohesive soil, and the relationship between sand boils and liquefaction scale.
- 2006-2007: Relationship between the flow rate of liquefied sand, structural displacement, and sand boils.
- 2007-2008: Liquefaction and reliquefaction mechanisms of sand due to multidirectional shear.
- 2008-2010: Evaluation of multidirectional shear of sand, liquefaction of sand, and landslide slopes.
- 2011-2014: Liquefaction of sand, ground improvement, seepage injection
- 2015 - Reiwa 2: Ground improvement (infiltration injection), ultra-soft clay
- 2017 to 2020: Ground improvement of organic soil
- From 2020 onwards: Ground improvement using mechanical mixing method
- 2020-2021: Research on tip bearing capacity in vertical rotary mixing method (TB method)
- Research on ground improvement methods using fly ash (Restom method) from 2022 onwards
Doctoral dissertation titles in engineering
- Seismic behavior of an artificial island off the coast of Kobe during the 1995 Great Hanshin Earthquake.
Awards and Others
- 1995: Received the Research Encouragement Award from the Aoba Engineering Promotion Foundation.
- 2002: Received the Research Encouragement Award from the Japanese Geotechnical Society.
- 2006: Awarded a research grant from the Japan Society for the Promotion of Civil Engineering Research.
- 2006: Received the Excellent Paper Presenter Award at the 41st Geotechnical Engineering Research Conference of the Japanese Geotechnical Society.
- 2009: Received the Japan Society for Earthquake Engineering Paper Encouragement Award.
- May 2013: Received the Japan Society of Civil Engineers Tohoku Branch Technology Development Award.
- May 2022: Received the Japanese Geotechnical Society's Meritorious Service Award.
- May 2024: Received the Tohoku Branch Award from the Japanese Geotechnical Society.
Track record of securing external research funding
- FY1998-FY2000: Grant-in-Aid for Scientific Research (Special Research Fellowship) from the Ministry of Education, Culture, Sports, Science and Technology: "Research on the Dynamic Strength and Deformation Characteristics of Cohesive Soils During Strong Earthquakes"
- Fiscal Year 1998: Tohoku Branch of the Japanese Geotechnical Society, "The Influence of Repeated Shear History on the Accumulation of Cumulative Energy Loss in Cohesive Soils"
- FY2001: Tohoku Construction Association, Technical Development Related to Construction Technology, "Development of Online Soil Flow Testing"
- FY2004-FY2006: Grant-in-Aid for Scientific Research, Ministry of Education, Culture, Sports, Science and Technology, Young Scientists (B) "Basic Research on Sand Boiling and Structural Settlement/Uplift Damage Associated with Liquefaction of Horizontal Ground"
- FY2004-FY2007: Grant-in-Aid for Scientific Research (Basic Research A) from the Ministry of Education, Culture, Sports, Science and Technology, Principal Investigator: Motoki Kazama, Tohoku University, "Elucidation of Progressive Delayed Failure Phenomena in Embankments and Gently Sloping Ground Due to Pore Pressure Propagation and Development of Prediction Methods"
- FY2011-FY2013 Ministry of Education, Culture, Sports, Science and Technology Grants-in-Aid for Scientific Research (A) Principal Investigator: Motoki Kazama, Tohoku University Evaluation of Deformation Characteristics and Fluidity of Liquefied Soil - Development to the Second Stage of Liquefaction Research -
- FY2011-FY2013 Ministry of Education, Culture, Sports, Science and Technology Grants-in-Aid for Scientific Research (C) Principal Investigator: Yoshio Tobita, Tohoku Gakuin University Comprehensive Study on the Formulation of Nonlinear Constitutive Models for Soil Materials
- FY2014-2016 Ministry of Education, Culture, Sports, Science and Technology Grants-in-Aid for Scientific Research, Basic Research (C): Fundamental research for the practical application of ultrafine spherical silica-based modifiers for liquid-based solutions.
- FY2015-FY2019 Ministry of Education, Culture, Sports, Science and Technology Grants-in-Aid for Scientific Research, Basic Research (A) Principal Investigator: Motoki Kazama, Tohoku University "Development of a Design Method for Liquefaction Resistance of Soil and its Practical Application - Responding to External Forces Exceeding Design Earthquake Motion -"
Joint research and research donations
- 2013: Japan Foundation Technology Co., Ltd. - Improvement effect of spherical silica-based soil conditioner for liquefaction countermeasures.
- 2014: Denki Kagaku Kogyo Co., Ltd. Uniaxial compressive strength of spherical silica-based modifier during penetration injection
- 2015: Japan Foundation Technology Co., Ltd. Improvement effect of spherical silica-based modifier during penetration injection.
- 2016: Ando Hazama Co., Ltd. Liquefaction phenomenon during shield tunneling.
- 2016: Japan Foundation Technology Co., Ltd. - Mix design for ground improvement using ultrafine particle cement.
- 2017: Onoda Chemico Co., Ltd. Research on ground improvement of organic soil
- 2017: Japan Foundation Technology Co., Ltd. - Mix design for ground improvement using water glass-based injection material mixed with ultrafine particle cement and kaolin.
- 2018: Japan Foundation Technology Co., Ltd. - Mix design for ground improvement using ultrafine particle cement.
- 2019: Onoda Chemico Co., Ltd. Research on ground improvement of organic soil and research on mid-layer ground improvement
- Reiwa 1 (2019): Japan Foundation Technology Co., Ltd. - Research on Low-Shrinkage Plastic Grout
- 2020: Onoda Chemico Co., Ltd. Research on problems with ground improvement using mechanical mixing methods and tip bearing capacity in vertical rotary mixing method (TB method)
- 2020: Japan Foundation Technology Co., Ltd. - Research on the penetration performance of low-shrinkage plastic grout
- 2021: Onoda Chemico Co., Ltd. Research on problems with ground improvement using mechanical mixing methods and tip bearing capacity in vertical rotary mixing method (TB method)
- 2021: Hashimoto Co., Ltd. - Technical consultation on the relationship between seismic motion and structural damage
- 2022: Onoda Chemico Co., Ltd. - Research on problems with ground improvement using mechanical mixing method
- Reiwa 4 (2022): Research on ground improvement methods using fly ash (Restom method) by the Restom Method Research Group
- Reiwa 5 (2023): Onoda Chemico Co., Ltd. Research on specimen preparation methods for laboratory mix design tests for ground improvement.
- Reiwa 5 (2023): Japan Foundation Technology Co., Ltd. - Regarding education and research in geotechnical engineering.
- Reiwa 6 (2024): Onoda Chemico Co., Ltd., Japan Foundation Technology Co., Ltd. - Education and Research in Geotechnical Engineering
- Reiwa 7 (2025): Onoda Chemico Co., Ltd., Japan Foundation Technology Co., Ltd. - Education and Research in Geotechnical Engineering
Contributing to the community as an academic expert
- 2022: Asia Air Survey Co., Ltd. - Technical consultation regarding safety evaluation of large-scale embankment construction sites
- 2023: Attended expert meeting regarding predictions for land deformation in large-scale embankment construction sites in Watari Town.
- 2023: Attended the expert panel meeting (study group) on predicting land deformation in large-scale embankment construction areas in Murata Town.
- Reiwa 5 (2023): Ogawara Town Large-Scale Embankment Land Movement Prediction Survey (Second Screening)
- 2023: Member of the External Expert Committee for the Survey of the Actual Status of Solar Power Generation Facilities and the Creation of a Database in Miyagi Prefecture.
- Reiwa 5 (2023): Shibata Town Large-Scale Embankment Land Movement Prediction, supervised by academic experts.
- Reiwa 5 (2023): Expert opinion on the lifting of pre-opening traffic restrictions on prefectural roads in Miyagi Prefecture
- Reiwa 6 (2024): External expert for the Miyagi Prefecture Solar Power Generation Facility Inspection Project, FY2024.
Patents and others
- 2005 (Heisei 17) Liquefaction Phenomenon Prediction System Patent No. 3692507: Motoki Kazama, Noriaki Sendo, Akira Yamaguchi
- Design method for the placement range of suspension-type soil improvement material and ground injection method utilizing the same, Patent No. 6473036, Akira Yamaguchi, Yoshio Tobita, Kazunari Okada