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Nakamura-Miura Lab
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A lab that uncovers the deterioration and safety of concrete structures through the world of cracks.
AboutAbout the lab
Watching cracks to protect infrastructure for the long term.
The Nakamura-Miura Lab studies concrete structures such as bridges, tunnels, and dams, as well as their materials.
Its work focuses mainly on the scale of cracks, combining mesoscale analysis developed in-house with nano- and micro-scale analysis and structural experiments.
The lab works on new maintenance and management methods for structures that deteriorate over the years, and on elucidating the mechanisms of phenomena caused by the combined action of loads and the environment.
It also conducts joint research with companies and researchers in Japan, and international joint research with researchers overseas.
Key terms
- Mesoscale analysis
- Analysis that calculates the behavior of a material at an intermediate scale between micro and macro, where grains and cracks inside the material can be seen.
- Maintenance and management
- Inspecting and diagnosing built structures, and continuing to use them safely for a long time while repairing and strengthening them.
- Cement-based materials
- Materials made by mixing cement with water and other ingredients and letting them harden, such as concrete and mortar.
- Fiber-reinforced concrete
- Concrete with thin fibers mixed in to improve its cracking and failure behavior.
NewsLab news
A master's student received the Annual Paper Encouragement Award at the Concrete Engineering Annual Convention 2026
Professor Nakamura and Associate Professor Miura received the Yoshida Award (Paper Category) from the Japan Society of Civil Engineers
A master's student received the Outstanding Presentation Award at the 80th Annual Scientific Meeting of the JSCE National Convention
A graduate's paper was published in Engineering Structures
ResearchResearch themes
The lab develops numerical analysis models that handle in an integrated way phenomena spanning spatial scales from µm to km and time scales from milliseconds to several decades, as well as problems where mechanics, physics, and chemistry overlap. Through both analysis and experiments, it aims to build methods for evaluating the performance of concrete structures that take into account the link between materials and structures and the passage of time.
*Illustrative imageOriginal analysis that reproduces cracking
Using 3D-RBSM (Rigid Body Spring Model), a discrete analysis method developed in-house, the lab elucidates a variety of phenomena involving cracking in concrete.
*Illustrative imageEarthquake-resistant concrete structures
To improve safety against large forces such as earthquakes, the lab investigates failure mechanisms using discrete analysis and structural experiments, and examines how to use new materials such as fiber-reinforced concrete. It also reviews structural detailing rules that have traditionally been set by experience, aiming to improve productivity and performance.
*Illustrative imageInspection and diagnosis of aging structures
The lab evaluates the performance of concrete structures that deteriorate over time, for example through corrosion of steel, and studies methods for inspection, diagnosis, repair, and strengthening. Through joint research with companies and research institutions, inspection and diagnosis methods using lasers and electromagnetic radar have begun to be used in society.
*Illustrative imageExpansion of cement-based materials and harsh environments
Using discrete analysis and microstructural analysis, the lab investigates the expansion of cement-based materials and their behavior in harsh environments over the range from nm to mm. It elucidates the mechanisms of complex phenomena from the relationship between cracks and the hydrated microstructure, and also conducts research toward developing new living spaces such as in the deep sea.
MembersFaculty
The members of the Nakamura-Miura Lab consist of faculty, project researchers, secretaries, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorHikaru Nakamura
- Associate ProfessorTaito Miura
- Assistant ProfessorMisato Fujishima
- Project Assistant ProfessorHaitong Sui
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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: “Santo Tomas Bypass Bridges ( ) E911a 13” E911a / CC BY-SA 4.0 (cropped)
- Original analysis that reproduces cracking: “Cracks in concrete - geograph.org.uk - 706423” Evelyn Simak / CC BY-SA 2.0 (cropped)
- Earthquake-resistant concrete structures: “Fractured reinforced concrete column” 作者不詳 / Public domain (cropped)
- Inspection and diagnosis of aging structures: “Steel Bridge Inspection - Snooper truck” Oregon Department of Transportation / CC BY 4.0 (cropped)
- Expansion of cement-based materials and harsh environments: “Fly Ash FHWA dot gov” United States Department of Transportation - Federal Highway Administration / Public domain (cropped)
- Related lab (Concrete Engineering Lab): “Moscow, Dubininskaya Street, Amarant building construction May 2022 02” Retired electrician / CC0 (cropped)
- Related lab (Nagae Lab (Earthquake Engineering and Disaster Prevention Group)): “Lunch atop a Skyscraper” 作者不詳 / Public domain (cropped)
- Related lab (Nakano-Sakai Lab (Geomechanics, Soil Mechanics and Foundation Engineering Group)): “Triaxial test sample” Builderpb / CC BY-SA 4.0 (cropped)
- Related lab (Zinchenko Lab (Sustainable Materials Lab)): “Plastic bottles for recycling” Radulf del Maresme / CC BY-SA 4.0 (cropped)
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