CHARACTERISATION OF SLOPE FAILURES DURING THE 2004 NIIGATA-KEN CHUETSU AND THE 2007 NIIGATA-KEN CHUETSU-OKI EARTHQUAKE
Slope failures mainly occurred in costal terraces during the 2007 Niigata-ken Chuetsu-oki Earthquake because the earthquake centre was on coastal region in the north of Kashiwazaki City and Kariwa Village. On the other hand, hilly and mountainous areas suffered heavy damage from the 2004 Niigata-ken Chuetsu Earthquake although the distance of epicentre between those two earthquakes was only about 40 km. Topographical and geological characteristics of Chuetsu area were discussed comparing the damaged areas of both earthquakes in the paper. Typical slope failures during the Chuetsu-oki Earthquake including liquefaction in sand dune were reported in detail. In addition, soil samples were obtained from the sites of the slope failures in both earthquakes. Using the samples, physical and shear tests were conducted to elucidate the soils strength properties.
geology landslide site investigation topography triaxial test unsaturated soil
H. Toyota A. Onoue
Associate Professor, Dept. of Civil and Environmental Engineering, Nagaoka University of Technology, Professor, Dept. of Civil Engineering, Nagaoka National College of Technology, Niigata, Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）