State-of-the art knowledge on upheaval buckling of buried pipelines

Thusyanthan, N and Robert, D 2019, 'State-of-the art knowledge on upheaval buckling of buried pipelines', Geotechnical Engineering, vol. 50, no. 2, pp. 52-59.

Document type: Journal Article
Collection: Journal Articles

Title State-of-the art knowledge on upheaval buckling of buried pipelines
Author(s) Thusyanthan, N
Robert, D
Year 2019
Journal name Geotechnical Engineering
Volume number 50
Issue number 2
Start page 52
End page 59
Total pages 8
Publisher Southeast Asian Geotechnical Society
Abstract This paper presents state-of-the-art knowledge on upheaval buckling, providing an overview on commonly used upheaval buckling soil models, latest uplift resistance results from experimental and numerical studies, investigations into the factors affecting the uplift resistance of soils and recommendations for design. The paper addresses the uplift resistance for both onshore and offshore pipelines. For onshore pipelines, the backfill soil cover could be dry, fully saturated or partially saturated. Thus, insight into the effects of degree of soil saturation on the uplift resistance is provided. For offshore pipelines, predicting the uplift resistance of buried pipelines has been a challenge due to uncertainty and randomness in the nature of soil cover created by various pipe burial techniques. This paper provides guidelines, supported by published literature, on the uplift resistance of different types of backfills such as sands, clays and blocky clays. An insight into the cyclic ratcheting mechanism, which is the driving mechanism leading to UHB pipeline failures, is also provided. It is expected that the paper will be a valuable source of information for designers and consultants undertaking pipeline designs both onshore and offshore.
Subject Civil Geotechnical Engineering
Keyword(s) Cyclic Ratcheting
Upheaval Buckling
Uplift resistance
Copyright notice © 2019 Southeast Asian Geotechnical Society.
ISSN 0046-5828
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