文章基本信息

标题：Seismic Behaviour of Buried Pipelines: 3D Finite Element Approach
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作者：Smrutirekha Sahoo ; Bappaditya Manna ; K. G. Sharma 等
期刊名称：Journal of Earthquakes
印刷版ISSN：2356-7333
出版年度：2014
卷号：2014
DOI：10.1155/2014/818923
出版社：Hindawi Publishing Corporation
摘要：This paper presents a numerical investigation on six pipeline models to study the seismic response of single and double buried pipelines using finite element method. Different depth and spacing of pipes are considered to investigate their prominent role in the seismic response of buried pipelines under an earthquake loading having PGA of 0.2468 g. In case of single pipeline, the maximum magnitude of final displacement as well as the stress at the end of the seismic sequence is found at the burial depth equal to the pipe diameter. In case of double pipeline, the maximum magnitude of final displacement is found when the spacing between pipes is equal to half the pipe diameter and there is an increasing tendency of developed stress with increase in spacing between pipes. In addition to the above results, the response of the buried pipelines with a particular bend angle (artificially induced bend/buckle) to the permanent ground deformation which is assumed to be the result of seismic wave propagation has also been studied. Remarkable differences in these results are obtained and with these results the designers can reduce seismic risk to their buried pipelines by taking proper precautionary measures.