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Sakaguchi-Satomi-Sueyoshi Lab
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The lab supports underground energy and resources through rock mechanics.
AboutAbout the lab
Advanced use of the geosphere environment and new developments in energy and resource development.
The Sakaguchi-Satomi-Sueyoshi Lab builds on geomechanics and environmentally harmonious development studies, and aims to build an environmentally harmonious society.
The lab studies ways to develop and use underground energy resources, including geothermal energy, and mineral resources in a sustainable manner.
To make advanced use of the underground, for purposes such as energy storage and waste disposal, the lab works on measuring crustal rock properties and crustal stress, and on developing the related technologies.
The lab also works on building systems of environmentally harmonious construction technology, based on the mechanical interaction between construction and development machinery and soil and rock.
Key terms
- Geomechanics
- The field that deals with how rock masses and ground deform and fail under applied forces.
- Crustal stress
- The forces that the rock mass beneath the ground surface receives from its surroundings.
- Permeability
- A property that indicates how easily water can pass through rock or strata.
NewsLab news
Paper by fixed-term Assistant Professor Sueyoshi and colleagues published in Rock Mechanics and Rock Engineering
Associate Professor Tomoaki Satomi and Assistant Professor Kazumasa Sueyoshi join the lab
The lab was established as the "Environmental Harmony Systems" group
ResearchResearch themes
Aiming to build an environmentally harmonious society, the lab conducts research based on geomechanics and environmentally harmonious development studies. Its work spans multiple fields, including resources engineering, rock engineering, solid earth science, geotechnical engineering, and development machinery engineering.
*Illustrative imageUnderground resource development and use of the geosphere environment
The lab studies the sustainable development and use of underground energy resources, including geothermal energy, and mineral resources. Toward advanced use of the geosphere environment, it also works on measuring crustal rock properties and crustal stress and developing the related technologies, and on understanding the permeability and mechanical behavior of underground fractures.
*Illustrative imageEnvironmentally harmonious construction machinery operation
The lab develops environmentally harmonious construction technology systems based on the mechanical interaction between construction and development machinery and soil and rock. It also works on developing operation systems for new construction machinery that could contribute to disaster recovery.
MembersFaculty
The Sakaguchi Lab consists of faculty members and master's and undergraduate students.As of 2026
- ProfessorKiyotoshi Sakaguchi
- Associate ProfessorTomoaki Satomi
- Assistant ProfessorKazumasa Sueyoshi
VoicesStudent voices
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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: “GeysersGeothermalDrilling1977” Max Crittenden / Public domain (cropped)
- Underground resource development and use of the geosphere environment: “Well Drilling Rig in Haiti” DatraxMada / CC BY-SA 4.0 (cropped)
- Environmentally harmonious construction machinery operation: “Drilling rig and a digger at a construction site in Tuntorp” W.carter / CC BY 4.0 (cropped)
- Related lab (Okamoto-Oyanagi Lab): “00 3571 Geothermal power plant in New Zealand” W. Bulach / CC BY-SA 4.0 (cropped)
- Related lab (Iizuka-Ho Lab): “ČBu, wastewater treatment plant 02” Czeva / CC BY-SA 4.0 (cropped)
- Related lab (Watanabe-Wang Lab): “Sasso 2 Geothermal Power Plant” T. AGEMAR / CC BY 4.0 (cropped)
- Related lab (Chien-Han Lab): “OR )” U.S. Department of Energy from United States / Public domain (cropped)
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