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Kuwano Lab
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The lab uses experiments to study the behavior of soil and ground, with the aim of protecting the ground from problems such as cave-ins.

AboutAbout the lab
Sustaining the functions of the ground over the long term
The Kuwano Lab studies the behavior of soil and ground through detailed experiments and observation.
The lab conducts fundamental research that examines the properties of geomaterials through high-precision laboratory tests, as well as research on keeping underground structures and earth structures in service for a long time.
In recent years, the lab has been studying ground cave-ins and has also been advancing numerical analysis using the discrete element method.
Key terms
- Ground cave-in
- A phenomenon in which the ground suddenly collapses due to causes such as a cavity formed underground
- Discrete element method
- A method that represents soil as an assembly of many particles and uses a computer to calculate how the particles move in relation to one another
- Internal erosion
- A phenomenon in which fine particles in soil are gradually washed out by water flow
NewsLab news
Student wins Best Presentation Award at the OHOW Student Seminar
Lab opened to the public at Open Campus 2026
Student wins Tanabe Prize for undergraduate thesis
Master's student wins Furuichi Prize for master's thesis
Master's student wins Best Poster Award at EraGET2025
ResearchResearch themes
The lab investigates the behavior of soil and ground through detailed experiments and observation, together with numerical analysis using the discrete element method. Its research rests on three pillars: fundamental research on material properties, research on functional preservation, and exploratory research.
*Illustrative imageInvestigating the material properties of soil
The lab uses laboratory tests to investigate how various geomaterials, such as sand, gravel, weathered rock, and improved soil, deform and fail. It is also developing sensors that measure elastic waves traveling through soil.
*Illustrative imageKeeping ground and earth structures in service for the long term
Through experiments, the lab studies underground cavities and the loosened ground around them, as well as internal erosion, in which fine particles are washed out by water flow, in order to explore the mechanisms by which ground cave-ins occur.
*Illustrative imageTaking on new challenges
The lab is tackling new topics, including research on how volcanic pumice soil with many voids fails, field surveys of cave-ins in Japan and abroad, and analysis of waves propagating around underground cavities.
MembersFaculty
The members of the Kuwano Lab consist of faculty, technical staff, secretaries, senior collaborators, research fellows, doctoral, master's, and undergraduate students, and research trainees.As of 2026
- ProfessorReiko KuwanoPublications ↗
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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: “Sinkhole in Harbor, Oregon” Oregon Department of Transportation / CC BY 2.0 (cropped)
- Investigating the material properties of soil: “Sand under electron microscope” NASA / Public domain (cropped)
- Keeping ground and earth structures in service for the long term: “Sinkhole, Bolebrooke Road, Bexhill” Alexis Markwick / CC0 (cropped)
- Taking on new challenges: “Akrotiri Santorini-Volcano pumice-layers Aegean-Sea” Ulrichstill / CC BY-SA 4.0 (cropped)
- Related lab (Soil Mechanics/Geotechnical Lab): “Danish triaxial shear test apparatus, in action” TomasSab / CC BY-SA 4.0 (cropped)
- Related lab (Bridge and Wind Engineering Lab): “Akashi Kaikyō Bridge” Alankang / CC BY-SA 4.0 (cropped)
- Related lab (Kiyota Lab): “Manhole shows subsidence occurred by 2011 Sendai earthquake” On-chan / CC0 (cropped)
- Related lab (Kishi Lab): “Detail of vertical crack in concrete retaining wall at Medway Park Sports Centre, Gillingham, Kent, England” Sunolafjagtenben-hur / CC0 (cropped)
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