New remedial technique for bridge foundations against lateral flow due to liquefaction

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Authors:Mori, Shin'ichiro; Terazawa, Masato
Author Affiliations:Primary:
Ehime University, Department of Civil and Environmental Engineering, Ehime, Japan
Other:
University of Southern California, United States
Wasada University, Japan
Tobishima Corporation, Japan
Volume Title:Proceedings of the seventh U. S.-Japan workshop on earthquake resistant design of lifeline facilities and countermeasures against soil liquefaction
Volume Authors:O'Rourke, Thomas D., editor; Bardet, Jean-Pierre; Hamada, Masanori
Source:Technical Report - Multidisciplinary Center for Earthquake Engineering Research (MCEER), No.MCEER-99-0019, p.517-531; Seventh U. S.-Japan workshop on earthquake resistant design of lifeline facilities and countermeasures against soil liquefaction, Seattle, WA, Aug. 15-17, 1999, edited by Thomas D. O'Rourke, Jean-Pierre Bardet and Masanori Hamada. Publisher: University of Buffalo, Multidisciplinary Center for Earthquake Engineering Research, Buffalo, NY, United States
Publication Date:1999
Note:In English. 8 refs.; illus., incl. 3 tables
Summary:During the 1995 Hyogoken-Nanbu (Kobe) earthquake, a large number of bridge foundations suffered severe damage not only due to strong motions but also due to liquefaction-induced lateral ground flows, particularly in the waterfront area of Hanshin region. After the earthquake, as remedial measures against the lateral flow, many projects simply adopted some geotechnical methods like sand compaction pile, gravel drain, etc. In this paper, a new structural technique is proposed as realistic remedial measure for the bridge foundations against the liquefaction lateral flow. In this technique, the resistance of the foundation far from a waterfront line is effectively redistributed to the foundation near the line by tying the consecutively neighboring foundations with rigid PC cables. An application of the technique in design and installation has also been described in this paper.
Subjects:Bridges; Damage; Design; Earthquakes; Foundations; Hyogo-ken Nanbu earthquake 1995; Liquefaction; Models; Piles; Remediation; Soil mechanics; Soil profiles; Asia; Far East; Honshu; Hyogo Japan; Japan; Kobe Japan
Record ID:2003009144
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute.
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