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  1. 防災科研関係論文

Pile group response to liquefaction-induced lateral spreading: E-Defense large shake table test

https://nied-repo.bosai.go.jp/records/4371
https://nied-repo.bosai.go.jp/records/4371
3d1db246-87ee-4a20-936e-13f3d46816d4
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Pile group response to liquefaction-induced lateral spreading: E-Defense large shake table test
言語
言語 eng
著者 Ramin Motamed

× Ramin Motamed

en Ramin Motamed

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Ikuo Towhata

× Ikuo Towhata

en Ikuo Towhata

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Tsuyoshi Honda

× Tsuyoshi Honda

en Tsuyoshi Honda

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Kentaro Tabata

× Kentaro Tabata

en Kentaro Tabata

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Akio Abe

× Akio Abe

en Akio Abe

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抄録
内容記述タイプ Other
内容記述 This paper presents the results of a large-scale shake table test at E-Defense facility on a pile group located adjacent to a gravity-type quay wall and were subjected to liquefaction-induced large ground displacements. Extensive liquefaction-induced large ground lateral spreading displaced the quay wall about 2.2. m and damaged the pile foundation. The pile foundation consisted of a six-pile group which supported a footing and a superstructure model. Large lateral soil displacements were measured by several sensors such as inclinometers and the results favorably agreed with the directly observed deformations. Soil lateral displacement decreased as the distance from the quay wall increased landward. The piles were densely instrumented and the measured bending strain records were able to explain the damage to the piles. Lateral pressures of the liquefied soil exerted on the piles were measured using earth pressure (EP) sensors. The application of two design guidelines (JRA [1] and JSWA [2]) for estimation of liquefaction-induced lateral pressure on piles is discussed and their advantages and shortcomings are addressed. Furthermore, two simplified methods (Shamoto et al. [3] and Valsamis et al. [4]) are employed to predict the extent of liquefaction-induced large ground displacements and they are compared to the measured deformations. Finally, their accuracy for predicting the liquefaction-induced lateral displacements is evaluated and practical recommendations are made. © 2013 Elsevier Ltd.
言語 en
書誌情報 en : Soil Dynamics and Earthquake Engineering

巻 51, p. 35-46
出版者
言語 en
出版者 ELSEVIER SCI LTD
ISSN
収録物識別子タイプ ISSN
収録物識別子 0267-7261
DOI
関連識別子 10.1016/j.soildyn.2013.04.007
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