Slope Instrumentation and Development of a Landslide Warning System
Dr. Phillip Ooi obtained a five year (2014-2019) project from the Hawaii Department of Transportation and the Federal Highway Administration (about $530,000) to develop a site-specific landslide warning system for a slope on Kalanianaole Highway, Oahu.
Landslides and other mass movement of geomaterials cause approximately 25 to 50 deaths and US $1 – 2 billion worth of damage in the United States annually. The island of Oahu, Hawaii has experienced numerous landslides along the state highways and elsewhere especially during downpours. The landslide warning system includes:
- A geotechnical investigation to characterize the soil;
- Monitoring of the in situ soil suction, water content, slope movement and rainfall;
- A saturated-unsaturated transient flow model to estimate the change in effective stresses during rain events; and
- An appropriate model for prediction and real time warning of rainfall-induced landslides
Bio-mediated and bio-inspired geotechnics in coastal applications
Further research projects and laboratory equipment details can be found in Geotechnical Engineering.
