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Facility Function Engineering Lab
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The lab protects agricultural water facilities such as irrigation ponds and embankments from disasters through computation and analysis.
AboutAbout the lab
Protecting the infrastructure that supports agriculture with mechanics and computation.
The lab studies agricultural irrigation facilities, which are responsible for supplying and managing water for agriculture.
It develops advanced analyses that predict the behavior of facilities and estimate the internal condition of structures, aiming at maintenance and management of facilities that withstand heavy rain and earthquakes.
Its methods include soil mechanics, computational science, inverse analysis, and geophysical exploration.
Undergraduates are assigned to the lab in their fourth year (graduate school: Division of Environmental Science and Technology, Graduate School of Agriculture).
Key terms
- Internal erosion
- A phenomenon in which water flowing through soil gradually carries away soil particles
- Finite element method
- A method of dividing a shape into small elements and using a computer to calculate deformation and how forces are transmitted
- Inverse analysis
- A method of estimating invisible internal conditions and properties from data measured from the outside
NewsLab news
Associate Professor Guo won the Encouragement Award of the Architectural Institute of Japan
Professor Fujisawa won the JACM Computational Mechanics Award
A doctoral student won the Outstanding Paper Presenter Award at the 60th Japan National Conference on Geotechnical Engineering
A doctoral student won the Paper Award of the Japan Society for Computational Engineering and Science
ResearchResearch themes
Agricultural irrigation facilities are infrastructure essential not only for stable agricultural production but also for disaster prevention and environmental conservation. The lab works on predicting the behavior of facilities and on developing analyses that estimate the interior of structures.
*Illustrative imagePredicting erosion that progresses inside soil
Internal erosion, in which particles are carried away by water flowing through soil, is invisible from the outside and difficult to predict. By reconsidering soil as a four-phase system and formulating it accordingly, the lab made it possible to simulate internal erosion in embankments and other structures.
*Illustrative imageComputing the response of facilities shaken by earthquakes
Structures subjected to large earthquakes deform greatly. Using the space-time finite element method, which solves time and space together, the lab analyzes the seismic response of dams and other structures while achieving both accuracy and stability.
*Illustrative imageSeeing inside without destroying
The lab studies how to estimate the internal condition of irrigation ponds and other structures without destroying them. It combines geophysical exploration, which shakes the ground and measures how waves propagate, with inverse analysis such as Kalman filtering and Bayesian estimation.
MembersFaculty
The members of the lab consist of faculty, secretaries, and students in the doctoral program, master's program, and undergraduate program.
- ProfessorKazunori Fujisawa
- Associate ProfessorGuo Guo
- Assistant ProfessorShoichi Kiyama
- Program-Specific Assistant ProfessorSHARMA Vikas
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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: “Yamatani Ootsutsumi Pond”
運動会プロテインパワー / CC BY-SA 4.0 (cropped) - Predicting erosion that progresses inside soil: “Levee erosion in the Stockton area ( )” U.S. Army Corps of Engineers Sacramento District / Public domain (cropped)
- Computing the response of facilities shaken by earthquakes: “Fujinuma Dam failure” ChiefHira / CC BY-SA 3.0 (cropped)
- Seeing inside without destroying: “Seismic Survey Party” Wsx2 / CC BY-SA 3.0 (cropped)
- Related lab (Bio-Sensing Engineering Lab): “Spectrometer” Jooja / CC BY-SA 4.0 (cropped)
- Related lab (Water Environment Engineering Lab): “Creek in wheat fields in Honjo, Saga” Peka / CC BY-SA 4.0 (cropped)
- Related lab (Water Resources Utilization Engineering Lab): “Heiwa Irrigation 1910 B” 作者不詳 / Public domain (cropped)
- Related lab (Rural Planning Lab): “Kyoto Toin Koshihata Rice Fields 2013-09” At by At / CC BY-SA 3.0 (cropped)
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