Location
New York, New York
Date
13 Apr 2004 - 17 Apr 2004
Abstract
The paper presents highlights of case histories during earthquakes in Japan in 2003. One is a river embankment of the Naruse river in Northern Miyagiken, in which the earthquake with Richter magnitude 6.2 caused failure. A particular interest in this case history is the timing of the earthquake and failure; the earthquake was coincided with the oncoming risk of flooding, with the river suffering a high water level due to continuous raining for three days before the earthquake. This warns us not to disregard the low probability event of combined risks that pose high consequence. The other case history is a gravity quay wall in Kushiro port, Hokkaido, in which the earthquake with Richter magnitude 8.0 caused minor damage. Of a particular interest in this case history is the performance of a quay wall with backfill treated with cement for solidification, which suffered settlements in the order of 0.5m. Other quay walls in the vicinity treated with densification and gravel drains suffered no damage. The investigation is under way with respect to the difference in the performance of these quay walls.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Iai, Susumu and Tobita, Tetsuo, "Recent Earthquakes in Japan" (2004). International Conference on Case Histories in Geotechnical Engineering. 13.
https://scholarsmine.mst.edu/icchge/5icchge/session00g/13
Recent Earthquakes in Japan
New York, New York
The paper presents highlights of case histories during earthquakes in Japan in 2003. One is a river embankment of the Naruse river in Northern Miyagiken, in which the earthquake with Richter magnitude 6.2 caused failure. A particular interest in this case history is the timing of the earthquake and failure; the earthquake was coincided with the oncoming risk of flooding, with the river suffering a high water level due to continuous raining for three days before the earthquake. This warns us not to disregard the low probability event of combined risks that pose high consequence. The other case history is a gravity quay wall in Kushiro port, Hokkaido, in which the earthquake with Richter magnitude 8.0 caused minor damage. Of a particular interest in this case history is the performance of a quay wall with backfill treated with cement for solidification, which suffered settlements in the order of 0.5m. Other quay walls in the vicinity treated with densification and gravel drains suffered no damage. The investigation is under way with respect to the difference in the performance of these quay walls.
