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Disaster Prevention Geotechnical Engineering Lab, Global Geo-Disaster Environmental Adaptation Group
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The lab studies preparedness for earthquakes and sediment disasters from a geotechnical engineering perspective.
AboutAbout the lab
Linking disaster prevention and nature conservation through geotechnical engineering.
The Disaster Prevention Geotechnical Engineering Lab studies preparedness for natural disasters such as earthquakes, floods, and landslides from a geotechnical engineering perspective.
It also focuses on climate change caused by global warming and the disasters that accompany it, and conducts research to develop climate change adaptation measures based on geotechnical engineering.
One of the lab's major goals is to create a research methodology that combines disaster prevention and nature conservation.
In addition to field surveys, testing, and model experiments with their simulations, the lab works on improving disaster prevention systems using drones, IoT, and artificial intelligence (AI).
Key terms
- Liquefaction
- A phenomenon in which, after an earthquake, the ground loses its ability to support buildings or settles, causing damage
- Lattice-shaped ground improvement
- A method of reinforcing the ground by constructing lattice-shaped walls within it
ResearchResearch themes
One of this lab's major goals is to establish research methods that link disaster prevention against natural disasters such as earthquakes, floods, and landslides with nature conservation. Through field surveys, tests, model experiments and their simulations, it investigates disaster preparedness from the standpoint of geotechnical engineering.
*Illustrative imageLattice-Shaped Ground Improvement to Suppress Liquefaction
Liquefaction causes damage after earthquakes, such as buildings sinking and the ground losing its bearing capacity. As a countermeasure, the lab has developed a new method that adds horizontal plates to lattice-shaped ground improvement, and examines its effectiveness through experiments and numerical analysis.
*Illustrative imageLiquefaction Countermeasures for Pile-Supported Road Embankments
In the 2016 Kumamoto Earthquake, many expressway embankments in Kumamoto Prefecture were damaged. Most road embankments in this region sit on loose soil that is prone to liquefaction, and the lab investigates the effectiveness of a pile system combining vertical piles, inclined piles, and geogrids through shaking table tests.
*Illustrative imageModeling Mixtures of Gravel and Tire Chips
The lab aims to propose a model that describes the stress-strain relationship of reinforced soil made by mixing gravel and tire chips. It examines the factors that affect static and dynamic behavior through element tests, and uses data mining to supplement the data.
*Illustrative imageHow Slopes Fail in Volcanic Areas
Following the slope failures that occurred in the 2016 Kumamoto Earthquake, the lab investigates the mechanism by which slopes in volcanic areas fail and the effect of repeated loading on the strength of volcanic soils. Centered on undrained triaxial tests, it also carries out X-ray analysis and electron microscope observation.
MembersFaculty
The members of the Disaster Prevention Geotechnical Engineering Lab consist of faculty, secretaries, doctoral and undergraduate students, and research students.As of 2026
- ProfessorHemanta Hazarika
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: “Liquefaction,Hinode,Itako-city,Japan” Katorisi / CC BY-SA 3.0 (cropped)
- Lattice-Shaped Ground Improvement to Suppress Liquefaction: “Soil liquefaction 3,katori-city,Japan” katorisi / CC BY-SA 3.0 (cropped)
- Liquefaction Countermeasures for Pile-Supported Road Embankments: “09238jfFlood Control Cut-Off Channelling Dike Embankment Sheet Pile Foundation Candaba, Pampangafvf 20” Judgefloro / CC0 (cropped)
- Modeling Mixtures of Gravel and Tire Chips: “Gravel on a beach in Thirasia, Santorini, Greece” Stan Zurek / CC BY-SA 3.0 (cropped)
- How Slopes Fail in Volcanic Areas: “ReykjadalurAug17 09” Reykholt / CC BY-SA 4.0 (cropped)
- Related lab (環境流体力学研究室): “Surface waves” Roger McLassus / CC BY-SA 3.0 (cropped)
- Related lab (地盤工学研究室): “Geotechnical equipment in Bellevue, WA” SounderBruce / CC BY-SA 4.0 (cropped)
- Related lab (防災地盤工学研究室): “Road failure from slope instability in Shasta-Trinity National Forest” Shopstone / CC0 (cropped)
- Related lab (地圏環境システム工学研究室): “Outcrop in Nagoe Kiridoshi Pass” Osumi Akari / CC BY-SA 4.0 (cropped)
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