Upper-bound yield envelopes for pipelines at shallow embedment in clay

This note documents yield envelopes derived from upper-bound plasticity solutions for pipelines embedded by up to half a diameter in clay soils with either homogeneous shear strength or shear strength increasing proportionally with depth. The pipeline is assumed to break away at its trailing edge, a...

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Bibliographic Details
Published in:Géotechnique 2008-04, Vol.58 (4), p.297-301
Main Authors: RANDOLPH, M. F, WHITE, D. J
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Engineering geology
Exact sciences and technology
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Summary:This note documents yield envelopes derived from upper-bound plasticity solutions for pipelines embedded by up to half a diameter in clay soils with either homogeneous shear strength or shear strength increasing proportionally with depth. The pipeline is assumed to break away at its trailing edge, a feature of behaviour that is consistent with experiments, where only transient negative excess pore pressure is maintained on the trailing edge. The solutions are placed in context, and compared with finite element solutions and experimental data in a separate paper (Merifield et al., 2008).
ISSN:0016-8505
1751-7656
DOI:10.1680/geot.2008.58.4.297