ABSTRACT
Drones and laser scanning technologies are quite advanced and they are now utilized for assessing the damage and size of collapses. The authors have been developing techniques utilizing the quantification of various collapses induced by the Kumamoto earthquakes and other natural agents. The authors utilized drones and laser scanning technology for the quantifications of landslides, failure of bridge foundations induced by the Kumamoto earthquake. The authors also evaluated the size and geometrical position of tsunami boulders in Okinawa Island and Shimoji Island. In this study, the authors briefly introduce the technology utilizing drones and laser scanning technology. Then several applications of these techniques to actual events observed such as slope failures, faulting induced displacement and tsunami boulders are presented and the applicability of these technologies in Rock Engineering are discussed.
