ZONING FOR LIQUEFACTION AND DAMAGE TO STRUCTURES DURING THE 2005 FUKUOKA-KEN SEIHO-OKI EARTHQUAKE
On March 20, 2005, an earthquake of magnitude 7.0, which was named as the 2005 Fukuoka-ken Seiho-oki Earthquake, occurred in the northwest part of Fukuoka City. During the earthquake, liquefaction occurred mainly in the reclaimed lands of the Hakata Bay area, resulting in structural damage. In this paper, the distribution of the sites where liquefaction occurred and the characteristics of the gradation of sand boils collected at the sites were clarified. Further, the occurrence of liquefaction in the reclaimed land was discussed with reference to some instances, and structural damages, including a flow failure of sloping ground due to liquefaction were summarized. Furthermore, liquefaction analysis was performed using a program for one-dimensional seismic response analysis and several soil profiles of the reclaimed land and alluvial ground in order to investigate the relationship between the occurrence of liquefaction and the distribution of acceleration; this was estimated from the analyses and the mechanical and physical properties of the soils.
Earthquake damage lateral flow liquefaction reclaimed ground sandy soil
H. Nagase K. Zen A. Hirooka N. Yasufuku K. Kasama
Professor, Dept. of civil Engineering ,Kyushu Institute of Technology, Kitakyushu, Japan Professor, Dept. of Civil and Structural Engineering, Kyushu University, Fukuoka, Japan Associate Professor, Dept. of civil Engineering ,Kyushu Institute of Technology, Kitakyushu, Japan Associate Professor, Dept. of Civil and Structural Engineering, Kyushu University, Fukuoka, Japan Reserch Associate, Dept. of Civil and Structural Engineering, Kyushu University, Fukuoka, 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）