ABSTRACT
ABSTRACT: The Niigata-ken Chuetsu earthquake (MJ = 6.8) caused more than 4000 slope failures in the area about 200 km north of Tokyo. The slope displacements in the major failures have been quantified by using the DEM technique, which may be able to serve as valuable case histories for evaluating seismically induced slope failures from the viewpoint of the Performance-Based Design. In this paper, six representative slope failures of different failure modes are explained in detail. Three-dimensional changes of slopes due to the earthquake are delineated not only by photographs, charts of plans and cross-sections but also by 3-dimensional digital image stored in the CD-Rom together with geotechnical and seismic data.
