Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay

Paul J Vardanega*, M. D. Bolton, S. K. Haigh, R.W. Whittle, A. Klar, M.G. Williamson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

7 Downloads (Pure)

Abstract

The Mobilisable Strength Design (MSD) philosophy has been used in various applications related to underground construction, e.g. for analysis of deep foundation and retaining wall performance. MSD requires simple models for the stress-strain behaviour of soils. The use of a mobilisation factor on undrained strength to limit soil mobilisation was introduced in BS8002 in 1994. To assist with MSD calculations, the mobilisation strain framework (MSF) has been developed to allow geotechnical engineers to account for the non-linear behaviour of fine-grained soils in routine geotechnical design. In this paper, triaxial and pressuremeter test data from the London Clay deposit are analysed, using the MSF, to study the effects of anisotropy on both the mobilisation strains and non-linearity exponent. The implications for design of underground constructions are
also discussed.
Original languageEnglish
Title of host publicationGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
Subtitle of host publicationProceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022
EditorsMohammed Z.E.B. Elshafie, Giulia M.B. Viggiani, Robert J. Mair
Place of PublicationThe Netherlands
PublisherCRC Press/Balkema, Taylor & Francis Group
Pages430-437
Number of pages8
Edition1st
ISBN (Electronic)9780367337339
ISBN (Print)9780367337339
DOIs
Publication statusPublished - 27 May 2021

Publication series

NameGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022

Bibliographical note

Publisher Copyright:
© 2021 ISSMGE, London, UK

Fingerprint

Dive into the research topics of 'Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay'. Together they form a unique fingerprint.

Cite this