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Tsukamoto Lab
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A lab that uses laboratory tests and field surveys to uncover how sandy ground liquefies in earthquakes.
AboutAbout the lab
How the ground moves during an earthquake
The Tsukamoto Lab studies soil mechanics, the branch of geotechnical engineering that deals with the mechanical properties of soil.
In the Great East Japan Earthquake, sandy ground liquefied over a wide area of the Kanto region, causing major damage to infrastructure structures, lifelines, and detached houses.
Through laboratory tests and field surveys, the lab investigates how water-saturated sandy ground comes to liquefy during an earthquake and how the ground flows.
Key terms
- Liquefaction
- A phenomenon in which earthquake shaking breaks the interlocking between grains of water-saturated sand, causing the ground to behave like a liquid
- Soil mechanics
- The field that uses the principles of mechanics to study the deformation, strength, and water flow of soil when forces act on it
- Laboratory testing
- Tests in which soil taken from a site, or soil reconstituted in the laboratory, is compressed and sheared to examine its properties
NewsLab news
A student received the Outstanding Presentation Award at the JSCE Kanto Branch Annual Meeting
A student received the Outstanding Presentation Award at GeoKanto2025
A student received the Outstanding Paper Presentation Award at the 60th Japan National Conference on Geotechnical Engineering
Assistant Professor Ishimaru and a student received the Outstanding Paper Presentation Award at the 59th Japan National Conference on Geotechnical Engineering
A student was selected as an Outstanding Presenter at GeoKanto2023
ResearchResearch themes
Specializing in soil mechanics (soil mechanics and soil dynamics), the lab studies the phenomenon in which sandy ground liquefies and flows during an earthquake. It approaches the topic through both laboratory tests and field surveys.
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MembersFaculty
The members of the Tsukamoto Lab consist of faculty, postdoctoral researchers, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorYoshimichi Tsukamoto
- Assistant ProfessorTaichi Ishimaru
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Soil liquefaction 4,Katori-city,Japan” katorisi / CC BY-SA 3.0 (cropped)
- Liquefaction and Flow of Sandy Ground: “Triaxial test sample” Builderpb / CC BY-SA 4.0 (cropped)
- Related lab (榎本研究室): “Landslide Seba Beach” Quinn Desilets / CC BY-SA 4.0 (cropped)
- Related lab (二瓶研究室): “Flowerdale River at Meunna, Tasmania, Australia” NeoGeneric / CC BY-SA 4.0 (cropped)
- Related lab (寺部研究室): “Traffic survey, two folding chairs ( )” Pasquale Paolo Cardo / CC BY 2.0 (cropped)
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