The 1995 Great Hanshin Earthquake and liquefaction damages at reclaimed lands in Kobe Port

被引:0
|
作者
Tanaka, Y [1 ]
机构
[1] Kobe Univ, Dept Civil Engn, Kobe, Hyogo, Japan
关键词
Great Hanshin Earthquake; liquefaction; man-made islands; seismic records; design procedure; well-graded fill material; pore pressure;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper presents the earthquake damages, especially of the liquefaction of reclaimed fills, at two near-shore man-made islands, Port Island and Rakko Island, in Kobe Port during the Great Hanshin Earthquake of January 17, 1995. The paper first describes a general aspect of the earthquake event and the seismic behavior of Port Island as observed through the records of seismometers in a vertical array and the piezometer monitoring in the seabed. The seismic records show how the man-made island on soft seabed clay behaved during the earthquake. Second, the liquefaction damages at these two islands are discussed in the light of applicability of current evaluation procedures for soil liquefaction. The fill materials used in these man-made islands consist of well-graded coarse materials and judging from their gradation characteristics, these fills may be considered less prone to liquefaction. It becomes clear that the current design procedures are developed based on the available data of very uniform, fine clean sands, and the extension of the design procedure fur the other types of soil needs to be made more carefully.
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页码:64 / 72
页数:9
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