Geotechnical and Groundwater Engineering

	Prof. KOMATSU Mitsuru E-mail: mkomatsu [at] okayama-u.ac.jp unsaturated soils, analysis of seepage flow, soil moisture Directory of Researchers 　Link to homepage

Study on Prediction of Slope Failure during Heavy Rainfall
Development of Monitoring and Numerical Modeling Methods for Safety Assessment of River Levees against Seepage

Development of Monitoring and Numerical Modeling Methods for Safety Assessment of River Levees against Seepage

	Assoc.Prof. FURUKAWA Zentaro E-mail: z-furukawa [at] okayama-u.ac.jp  Geodisaser Prevention Engineering/ Geoenvironmental Engineering/ Vegetation Directory of Researchers 　Link to homepage

1）Shear test and bioelectrical potential monitoring of soil containing roots
2）Relationship between ground shear strength and plant biopotential fluctuations

Geodisaster prevention utilizing vegetation
A bioelectric sensor system that monitors changes in bioelectrical potentials (brain waves and electrocardiograms in humans) are developed. When trees in mountainous areas are exposed to shear and tensile forces caused by landslides by attaching sensors to their roots and trunks, that can be used to detect landslides in advance and issue warnings and other information. A machine learning program was constructed to estimate ground displacement from real-time potential fluctuations by monitoring the amplitude and frequency of displacement and plant biopotential when the ground containing plant roots is subjected to landsildes.