Department of Civil and Environmental Engineering
The Department of Civil and Environmental Engineering consists of the following Core and CooperativeLaboratories. [The number of laboratories is indicated in parentheses.]① Core Laboratories
Mathematical System Design (1), Infrastructural Materials (3),Engineering Mechanics of Infrastructures (2), Water Environmental Engineering and Science (4),Science of Regional Systems (2)② Cooperative Laboratories
International Research Institute of Disaster Science [5 Laboratories]
Tsunami Engineering, Disaster Geo-informatics/ Real-time Geo-informatics for Disaster Management,
Regional Resilience Planning, Spatial Design Strategies, Computational Safety EngineeringLaboratory

Mathematical System Design

Infrastructural Materials(Advanced ComputationalMechanics)

Professor /Associate Professor

Professor
Yuki YAMAKAWA
Associate Professor
Shintaro Miyamoto

Professor
Kenjiro TERADA

Professor
Sustainable Infrastructure
Materials Engineering

Makoto HISADA(Concrete Engineering)

Associate Professor

Theme of research
In the mathematical system design laboratory, theoretical and computational
methodologies for predicting and evaluating the strength and stability of structural
systems and the deformation and failure characteristics of materials are studied using
the approach based on continuum mechanics, elastoplasticity theory, andcomputational mechanics. Through these researches, we aim to contribute to solving
various mechanical and chemical problems associated with the design, maintenance,and management of infrastructures with robustness, resilience, and longevity. Our
research interests include constitutive laws for finite deformations, bifurcation andinstability phenomena in materials and structures, as well as damage mechanisms
and repair techniques of structures such as power transmission towers and a natural
hazard simulation with particle-based fluid-soil-structure coupling method. We also
study using experimental and computational methodologies to evaluate the strength,stability, and durability of construction materials for the realization of a low-carbonsociety.
We are working on the development of advanced theory and technology to
reproduce phenomena precisely by applying various discretization methods tomathematical models that describe the mechanical behavior of structures andmaterials by eliminating simplification as much as possible. In particular, we aredeveloping the world's most advanced computational mechanics methods for
simulating and visualizing the mechanical behavior of various materials andstructures such as soils, concrete, and various composite materials, their interaction
with fluids, and complex physical phenomena such as transformation behavior indigital space from a multi-scale and multi-physics perspective. The scope of ourresearch covers a wide range of areas, including materials design, structuraloptimization, and fracture/disaster simulation using finite element methods, materialpoint method, quantum computing, etc.
Concrete is one of the most widely used construction materials. The performanceof concrete changes according to the production procedure even when the samematerials are used. In addition, the requirements for the performance of concreteshould be decided by considering the environment factors. The research topics of ourlaboratory are to clarify the nature of concrete, and to develop the production
procedure of concrete to satisfy the required performance. In addition, research on
new concrete structural members also is carried out.

Hiroshi MINAGAWA

Infrastructural Materials(Geosphere and GeotechnicalEngineering)

Professor
Shotaro YAMADA
Associate Professor
Akiyoshi KAMURA

The mission of the division of Geosphere and Geotechnical Engineering is toconduct education and research that contribute to the survey, design, construction,and maintenance of infrastructures related to the geosphere and ground, prevention,and mitigation of geohazards, and creation and utilization of the geosphereenvironment. This division explores the mechanisms of earth activities and unravels
the linkage between earth activities and geotechnical engineering issues. We also aim
to elucidate the mechanisms of geo-disasters and to develop effective disasterprevention and mitigation measures. Furthermore, we actively utilize innovative
digital technologies and data-driven approaches to promote research based on soilmechanics and geotechnical engineering.

Laboratory

Engineering Mechanics ofInfrastructures(Structural Mechanics)

Professor /Associate Professor

Associate Professor
Isao SAIKI

Professor
Engineering Mechanics ofShigeki UNJOH
Infrastructures(Creative Design Engineering for Associate Professor
Structural Systems)
Hideki NAITO

Water Environmental
Engineering and Science(Hydro-Environment System)

Professor
So KAZAMA

Water Environmental
Engineering and Science(Hydro-Environmental
Informatics)

Water Environmental
Engineering and Science(Environmental Protection
Engineering)

Water Environmental
Engineering and Science(Water Quality Engineering)

Professor
Keiko UDO

Professor
Yu-You LI
Associate Professor
Kengo KUBOTA

Professor
Daisuke SANO
Associate Professor
Mohan AMARASIRI

Theme of research
In order to design structural members and structural systems mainly composed ofsteel materials, we have to mechanically examine the functions they are required tohave, predict their load carrying capacity and create new structural forms. For thispurpose, it is necessary to accurately predict mechanical behavior based on thecharacteristics of steel structure, such as slender and thin-walled. We make new
proposals for structural systems and structural materials in accordance with theultimate behavior of structures predicted mainly through our numerical simulations.

It is of importance to maintain the long-term function of infrastructures to support
the safe and prosperous national life and sustainable socio-economic activities.
Throughout their lifetime, infrastructures are subjected to various loads and actions
including earthquake ground motions and environmental effects. Although the loads
and actions involve significant uncertainties, the structures have to be designed andmaintained to ensure the necessary safety and functionality. Establishing/improving
design concepts which integrate quantitative evaluations of the uncertainties of loads
and actions, the mechanical properties of members and overall structures, and thelong-term performance is essential to achieve these purposes.
This laboratory conducts the research and development to create new designconcepts for structural systems for the purpose to maintain the long-term
performance over the whole lifetime of structures using new materials andsmart/high strength/high durable structural systems as well as monitoring anddiagnosis systems utilizing data science and AI technologies.
The evaluation of the water environment on the earth is fundamental technology
for analysis of water resources and disasters. This laboratory investigates the spatial
distribution of water environment and water resources using GIS, remote sensing
technology, and observes water cycle (rainfall, snow, and evapotranspiration), water
quality, and the ecology in the field. Numerical models are also developed to estimate
the above amounts and are used to understand the interaction between humanactivities and water.
The Hydro-Environmental Informatics Laboratory aims to assess and evaluate
disaster mechanisms in riverine and coastal areas caused by floods, storm surges,
and high waves with geospatial big data for quantifying disaster risks anddeveloping efficient disaster mitigation measures. We analyze past, present, andfuture land, climate, and social data, carry out numerical simulations of disasters,
and employ remote sensing techniques using satellite images. Developing economic
evaluation methods for sustainable climate change adaptation is another key focus
of our research.
In other to realize the carbon neutral and recycle-oriented society, it is very
important to develop new environmental protection technologies and planning
methods for minimizing the load on the natural environment. The research in thislaboratory is focused on managing wastewater and the solid waste produced fromthe living and industry activities of human beings. The research interests of this lab
are (1) the biological treatment of wastewater and solid waste, (2) bioenergy andresource recovery using anaerobic biotechnologies, including methane fermentationand hydrogen production, (3) innovative environmental system design, and (4)environmental pollution control. We conduct fundamental and applied process
studies in environmental engineering based on the science of environmentalmicrobiology, environmental chemistry and environmental system engineering.
With changes in lifestyle, the variety of water pollutants, such as pathogens andchemicals, is diversifying, making it increasingly difficult to properly manage healthrisks associated with water use using conventional water quality indicators. In thislaboratory, we aim to establish a sustainable water use system throughout the world
for the future, by elucidating the environmental dynamics of pathogens and trace
pollutant chemicals, the causality with diseases, the attenuation characteristics in theenvironment, and the removal characteristics in water treatment, thereby conducting
research to develop a new water quality management and control system tailored tothe purposes of water use.

Laboratory

Professor /Associate Professor

Science of Regional Systems(Advanced Infrastructure Systems) Associate Professor
Yu OTAKE

Science of Regional Systems(Ecological Engineering)<Cooperative Laboratories>
International Research Instituteof Disaster Science(Tsunami Engineering)

Professor
Osamu NISHIMURA
Associate Professor
Takashi SAKAMAKIProfessor
Fumihiko IMAMURA
Associate Professor
Anawat SUPPASRI
Associate Professor
Shosuke SATO

<Cooperative Laboratories>
International Research Instituteof Disaster Science(Disaster Geo-informatics)

ProfessorShunichi KOSHIMURA
Associate Professor
Erick MAS

Theme of research
In recent years, the distribution of sensors in various structures and across cities
has enabled the collection of high-dimensional spatiotemporal information. The
Advanced Infrastructure Systems Laboratory capitalizes on all available data science
technology to develop design and control methods that make effective use of highdimensional information. Specifically, we are working on the prediction of thecomplex mechanical behavior of structures and elucidation of mechanisms byintegrating data-oriented and physical modeling. Furthermore, we are developing amethod for real-time prediction and detection of structural anomalies and damage at
the time of a disaster in order to improve the robustness and resilience of structuresand urban systems.
To mitigate human impacts on aquatic ecosystems and achieve sustainable use ofvarious ecological services, our laboratory aims to enhance the understanding ofstructures and functions of ecosystems and their applications. The current major
research interests of our laboratory are,- Analysis of organic matter and nutrient dynamics for proper management andutilization of watersheds and coastal areasCarrying capacity and fisheryoperations for sustainable non-feeding aquaculture- Analysis of the production and decomposition processes of seaweed and othermarine biomass, and evaluation of their carbon fixation Ecosystem monitoring
methods based on information on the high-dimensional chemical composition ofindividual organisms in coastal waters
The TEL (Tsunami Engineering Laboratory) conducts research from anengineering perspective on tsunamis, the natural disaster most representative ofJapan, which are characterized by a low frequency and high impact. The safety andsecurity of the community has been considering as one of the most important issues
from the reconstruction and rehabilitation after the 2011 Great East Japan
Earthquake. Numerical analysis techniques are developed for the reproduction andprediction of tsunamis and the development of evacuation simulations by adopting
cognitive science. These technologies are applicable at a domestic level and are
expected to expand to the international level. The final purpose of the TEL is toperform research to protect human life and reduce property loss in societies withcomplicated human activities and increased informatization.
With use of advanced sensing and modern computing power, we establish a newframework of real-time disaster science that aims to identify the social impact ofnatural disaster by integrating real-time computing, damage/loss estimation models,
remote sensing and geo-informatics. Our mission is to achieve a technologicalcontribution to enhancing disaster resilience throughout the efforts of real-time geoinformatics research.

Associate Professor
Bruno ADRIANO<Cooperative Laboratories>
International Research Instituteof Disaster Science(Regional Resilience Planning)<Cooperative Laboratories>
International Research Instituteof Disaster Science(Spatial Design Strategies)

Professor
Makoto OKUMURA

Associate Professor
Katsuya HIRANO<Cooperative Laboratories>
International Research Instituteof Disaster Science(Computational SafetyEngineering)

Associate Professor
Shuji MORIGUCHI

Our research intends to provide inputs for planning policies that aim to make cities
and regions more resilient against natural disasters. We provide data, tools andmethods to regions to adapt and respond properly to natural disasters for disaster
impact reduction. We also explore mechanisms and theories to recover better fromdisasters by addressing social and economic issues existed prior to disasters. We
investigate impacts of natural disasters on socioeconomic activities and explore
rebuilding processes using quantitative and qualitative techniques.
In order to make an attractive and vital city, we study the meaning and image ofthe place and landscape with infrastructure based on cognitive scientificmethodology. This knowledge is being used to develop new practices in town
planning and civil engineering structure design. In recent years, special focus has
been on developing methods for disaster prevention town planning based on
assistance given to disaster-stricken areas for recovery in the wake of the Great East
Japan Earthquake disaster.
We develop innovative technologies aimed at assessing the safety of regional andurban areas within the realm of computational engineering. Specifically, varioussimulation techniques for the disaster risk assessment considering uncertainties andcomplex interactions between structures, ground, and fluids, digital twins for disasterprevention and mitigation covering a wide area, and frameworks for rapid disaster
assessment combining numerical simulations and observation are developed fordesigning resilient infrastructures. Additionally, our studies expand to the risk
assessment of actual disasters that have occurred or are feared to occur in the future.

Note: For more detailed information, please contact the student office. [TEL+81-22-795-7489]