HR: 16:15h
AN: S54A-04    [Abstracts]
TI: Damage to Tunnels Caused by the October 23, 2004, Chuetsu Earthquake, Niigata, Japan
AU: * Konagai, K
EM: konagai@iis.u-tokyo.ac.jp
AF: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505 Japan
AU: Zafeirakos, A
EM: thanasis@iis.u-tokyo.ac.jp
AF: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505 Japan
AU: Numada, M
EM: numada@iis.u-tokyo.ac.jp
AF: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505 Japan
AU: Johansson, J
EM: jorgen@iis.u-tokyo.ac.jp
AF: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505 Japan
AU: Sadr, A
EM: aasadr@iis.u-tokyo.ac.jp
AF: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505 Japan
AU: Katagiri, T
EM: toshi@iis.u-tokyo.ac.jp
AF: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505 Japan
AB: A huge number of landslides induced by the Chuetsu earthquake caused a total of 233 segments of national and prefectural routes in Higashiyama mountain area to be closed to traffic, and totally 61 village areas were completely isolated. Since railway and road facilities follow closely the motions of soil, damage to these facilities must be discussed in terms of soil deformations that they experienced. As examples, cases of some tunnels will be presented. It is concluded that even small soil deformations can be large enough to cause serious cracking of tunnel linings.
DE: 7212 Earthquake ground motions and engineering
DE: 7299 General or miscellaneous
DE: 8005 Folds and folding
DE: 8010 Fractures and faults
SC: Seismology [S]
MN: 2005 Joint Assembly