Pipelines and laterally loaded piles in an elasto-plastic medium

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TypeArticle
Journal titleJournal of Geotechnical Engineering
Volume119
IssueSeptember 9
Pages14311447; # of pages: 17
SubjectPlastic pipe
AbstractThe uplift behavior of a shallow pipeline embedded in an elastoplastic medium is examined. An analytical solution for a beam on elastoplastic foundation is developed and a characteristic nondimensional load-displacement and stress displacement relationship are presented. An approximate three-dimensional (3D) solution is proposed that accounts for embedment and breakaway condition behind the pipeline making use of the load-displacement curves developed for rigid anchors by Rowe and Davis in 1982. A comparison of these results with those obtained by 30 finite-element analysis indicates that the simplified solution of a beam on elastoplastic foundation is a practical alternative for analyzing the uplift behavior of shallow pipelines. The approximate solution is also used to compare the behaviour of a laterally loaded pile for which no separation or separation between the surrounding soil and the back of the pile is permitted as the load is monotonically increased. The results are presented in the form of nondimensional charts that permit hand calculations and rapid verification of structural design of the pipeline and piles.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number40602
5012
NPARC number20375870
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Record identifierf2f2345a-09e6-47f8-b844-46c6931370f3
Record created2012-07-23
Record modified2016-05-09
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