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

doi:10.1201/9780429321559-56

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 proceeding › Conference Contribution (Conference Proceeding)

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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 language	English
Title of host publication	Geotechnical 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 publication	Proceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022
Editors	Mohammed Z.E.B. Elshafie, Giulia M.B. Viggiani, Robert J. Mair
Place of Publication	The Netherlands
Publisher	CRC Press/Balkema, Taylor & Francis Group
Pages	430-437
Number of pages	8
Edition	1st
ISBN (Electronic)	9780367337339
ISBN (Print)	9780367337339
DOIs	https://doi.org/10.1201/9780429321559-56
Publication status	Published - 27 May 2021

Publication series

Name	Geotechnical 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

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Publisher Copyright:
© 2021 ISSMGE, London, UK

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Vardanega, P. J., Bolton, M. D., Haigh, S. K., Whittle, R. W., Klar, A., & Williamson, M. G. (2021). Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay. In M. Z. E. B. Elshafie, G. M. B. Viggiani, & R. J. Mair (Eds.), Geotechnical 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: Proceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022 (1st ed., pp. 430-437). (Geotechnical 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). CRC Press/Balkema, Taylor & Francis Group. https://doi.org/10.1201/9780429321559-56

Vardanega, Paul J ; Bolton, M. D. ; Haigh, S. K. et al. / Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay. Geotechnical 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: Proceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022. editor / Mohammed Z.E.B. Elshafie ; Giulia M.B. Viggiani ; Robert J. Mair. 1st. ed. The Netherlands : CRC Press/Balkema, Taylor & Francis Group, 2021. pp. 430-437 (Geotechnical 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).

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

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 arealso discussed.",

author = "Vardanega, {Paul J} and Bolton, {M. D.} and Haigh, {S. K.} and R.W. Whittle and A. Klar and M.G. Williamson",

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year = "2021",

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Vardanega, PJ, Bolton, MD, Haigh, SK, Whittle, RW, Klar, A & Williamson, MG 2021, Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay. in MZEB Elshafie, GMB Viggiani & RJ Mair (eds), Geotechnical 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: Proceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022. 1st edn, Geotechnical 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, CRC Press/Balkema, Taylor & Francis Group, The Netherlands, pp. 430-437. https://doi.org/10.1201/9780429321559-56

Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay. / Vardanega, Paul J; Bolton, M. D.; Haigh, S. K. et al.

Geotechnical 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: Proceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022. ed. / Mohammed Z.E.B. Elshafie; Giulia M.B. Viggiani; Robert J. Mair. 1st. ed. The Netherlands : CRC Press/Balkema, Taylor & Francis Group, 2021. p. 430-437 (Geotechnical 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).

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

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T1 - Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay

AU - Vardanega, Paul J

AU - Bolton, M. D.

AU - Haigh, S. K.

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AU - Klar, A.

AU - Williamson, M.G.

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N2 - 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 arealso discussed.

AB - 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 arealso discussed.

U2 - 10.1201/9780429321559-56

DO - 10.1201/9780429321559-56

M3 - Conference Contribution (Conference Proceeding)

SN - 9780367337339

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BT - Geotechnical 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

A2 - Elshafie, Mohammed Z.E.B.

A2 - Viggiani, Giulia M.B.

A2 - Mair, Robert J.

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CY - The Netherlands

ER -

Vardanega PJ, Bolton MD, Haigh SK, Whittle RW, Klar A, Williamson MG. Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay. In Elshafie MZEB, Viggiani GMB, Mair RJ, editors, Geotechnical 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: Proceedings of the Tenth International Symposium on Geotecnical Aspects of Underground Construction in Soft Ground, IS-Cambridge 2022, Cambridge, United Kingdom, 27-29 June 2022. 1st ed. The Netherlands: CRC Press/Balkema, Taylor & Francis Group. 2021. p. 430-437. (Geotechnical 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). doi: 10.1201/9780429321559-56

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

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