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Limit analysis solutions for very gentle undrained slopes

conference contribution
posted on 2011-01-01, 00:00 authored by An-Jui Li, R Merifield
In view of the demand for energy resources, offshore engineering has drawn the attention of many investigators over the past decade. Recent studies have revealed that seabed landslides can have a sig-nificant influence on the performance of offshore infrastructure, such as pipelines. The vulnerability triggered by seabed landslides can even lead to loss of life. In this context, the importance of offshore slope stability evaluation is obvious. Slope stability is generally assessed by the limit equilibrium method (LEM). However, the accuracy of the method is often questioned due to the underlying assumptions that it makes. This study utilises numerical finite element upper and lower bound limit analysis to produce solutions for very gentle undrained slopes. Using these techniques, the stability can be bracketed from above and below. In this paper, a range of slope geometries and the inhomogeneity of the natural soil have been taken into account. The solu-tions presented are useful tools for preliminary design.



Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (14th : 2011: Hong Kong, China)


1 - 6


Hong Kong Geotechnical Society


Hong Kong, China

Place of publication

Hong Kong

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End date




Publication classification

E1 Full written paper - refereed

Copyright notice

2011, Hong Kong Geotechnical Society

Title of proceedings

ISSMGE 2011 : Soil mechanics and geotechnical engineering : challenges and solutions : Proceedings of the 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering

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