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http://dx.doi.org/10.5000/EESK.2003.7.3.057

Estimation of Pipeline.Soil Interaction Force for the Response Analysis of Buried Pipeline  

김태욱 (한국철도기술연구원 궤도ㆍ노반 연구팀)
임윤묵 (연세대학교 공과대학 사회환경ㆍ시스템 공학부)
김문겸 (연세대학교 공과대학 사회환경ㆍ시스템 공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.7, no.3, 2003 , pp. 57-67 More about this Journal
Abstract
Response analysis of buried pipeline subjected to permanent ground deformation(PGD) due to liquefaction is mainly executed by use of numerical analysis or semi-analytical relationship, When applying these methods, so called interfacial pipelineㆍsoil interaction force plays an dominant part. Currently used interaction force is mode up of indispensable mechanical and physical components for the response analysis of buried pipeline. However, it has somewhat limited applicability to the liquefied region since it is based on the experimental results for the non-liquefied region. Therefore, in this study, improved type of pipelineㆍsoil interaction force is proposed based on the existing interaction force and experimental research accomplishments. Above all, proposed interaction force includes various patterns of PGD or spatial distributions of interaction force caused by the decrease of soil stiffness. Through the comparison of numerical results using the proposed and the existing interaction force, relative influences of interaction force on the response of pipeline are evaluated and noticeable considerations in the application of semi-analytical relationship are discussed. Moreover, analyses due to the change of pipe thickness and burial depth are performed.
Keywords
buried pipeline; pipeline.soil interaction force; PGD due to liquefaction; PGD patterns;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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