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IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)  > 期刊论文
Title: Numerical Simulation of Liquefaction Deformation of Sand Layer around Bucket Foundations under Dynamic Loadings
Author: Li C(李驰) ; Lu XB(鲁晓兵) ; Wang SY(王淑云)
Source: The Open Ocean Engineering Journal
Issued Date: 2010-02-16
Volume: 3, Issue:2, Pages:75-81
Abstract: Bucket Foundations under Dynamic Loadings The liquefaction deformation of sand layer around a bucket foundation is simulated under equivalent dynamic ice-induced loadings. A simplified numerical model is presented by taking the bucket-soil interaction into consideration. The development of vertical and horizontal liquefaction deformations are computed under equivalent dynamic ice-induced loadings. Firstly, the numerical model and results are proved to be reliable by comparing them with the centrifuge testing results. Secondly, the factors and the development characteristics of liquefaction deformation are analyzed. Finally, the following numerical simulation results are obtained: the liquefaction deformation of sand layer increases with the increase of loading amplitude and with the decrease of loading frequency and sand skeleton’s strength. The maximum vertical deformation is located on the sand layer surface and 1/4 times of the bucket’s height apart from the bucket’s side wall (loading boundary). The maximum horizontal deformation occurs at the loading boundary. When the dynamic loadings is applied for more than 5 hours, the vertical deformation on the sand layer surface reaches 3 times that at the bottom, and the horizontal deformation at 2.0 times of the bucket height apart from the loading boundary is 3.3% of which on the loading boundary.
Language: 英语
Indexed Type: 其他
Corresponding Author: 李驰
Correspondent Email: tjdxlch2003@126.com
Subject: 固体力学::岩体力学和土力学
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/33052
Appears in Collections:水动力学与海洋工程重点实验室(2009-2011)_期刊论文

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