Development of economical embankment material for ASEAN highway roads

Project Gist

Development of economical soil improvement method for ASEAN highway roads


soil improvement, road, embankment, bio, enzyme

Background, Purpose, and Project Achievements

Roads and railways are often supported by “Embankment” which is constructed by compacting soils. In the case that quality of the soil is not good, we need to improve the soil to be sufficiently strong. Since the existing improve methods are sometimes expensive, in particular for developing countries, we need to develop a new technique to improve soils. Kyoto University is now conducting experimental research to develop a new soil improvement method using chemicals discharged from bio-enzyme though a joint research with university of Myanmar.

Future Prospects

Sustainability of the improvement effect produced by bio-enzyme is very important for actual implementation to infrastructures. Improvement effect and its duration will be studied under properly realistic conditions using the soils and water obtained at the site where real construction is expected


Schematic figure of road embankments constructed by bio-enzyme treated soil
Schematic figure of road embankments constructed by bio-enzyme treated soil
Construction of road embankment
Construction of road embankment

Principal Investigator


・MIMURA Mamoru
・Graduate School of Engineering
・I have performed a series of researches on geotechnical engineering and disaster mitigation in the Disaster Prevention Research Institute and the Graduate School of Engineering of Kyoto University. I specialize in numerical analysis on stress and deformation of soft foundation, urban geoinformatics and development of conservation technology for ground structure inheritance.