Effect of drainage on upheaval buckling susceptibility of buried pipelines

Joe G. Tom, David J. White

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper investigates the effect of soil drainage on the uplift resistance of buried pipelines, and their susceptibility to upheaval buckling. The uplift resistance of buried pipelines is considered through analytical and numerical predictions for both drained and undrained conditions. Combinations of soil strength parameters for typical soils are estimated based on common correlations. For certain ranges of typical normally consolidated soil conditions, particularly those with high critical state friction angles, the drained uplift resistance may be lower than the undrained resistance. This observation is important because in typical practice only drained or undrained behaviour is considered depending on the general type of soil backfill used. In this case, the critical or minimum uplift resistance may be overlooked. Further, the changing undrained uplift mechanism between shallow and deep conditions is investigated. It is found that the common approach of considering the minimum of either a local (flow around) or global (vertical slip plane) failure can overestimate the uplift resistance in normally consolidated soils.

Original languageEnglish (US)
Title of host publicationOffshore Geotechnics; Torgeir Moan Honoring Symposium
PublisherAmerican Society of Mechanical Engineers(ASME)
ISBN (Electronic)9780791857779
DOIs
StatePublished - Jan 1 2017
Externally publishedYes
EventASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Norway
Duration: Jun 25 2017Jun 30 2017

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume9

Conference

ConferenceASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
Country/TerritoryNorway
CityTrondheim
Period6/25/176/30/17

ASJC Scopus subject areas

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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