MSD applied to the construction of the British Library basement: a multistage excavation in London Clay

Jamie Crispin; Abigail H Bateman; Elia Voyagaki; Alexandra Campbell; George Mylonakis; Malcolm Bolton; Paul J Vardanega

doi:10.1139/cgj-2023-0238

MSD applied to the construction of the British Library basement: a multistage excavation in London Clay

Jamie Crispin, Abigail H Bateman, Elia Voyagaki, Alexandra Campbell, George Mylonakis, Malcolm Bolton, Paul J Vardanega^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

This note presents the application of the mobilisable strength design (MSD) method to the monitoring results of the multi-propped excavation in the south area of the British Library Euston, constructed in a highly overconsolidated stiff clay deposit. The MSD method is an energy-based approach (a nonlinear finite-element method for a single-degree-of-freedom soil-wall system) introduced to develop a simplified design methodology that satisfies both ultimate and serviceability limit states. Wall displacement predictions based on the MSD method are compared with considerable field monitoring data. The sensitivity of the method to reasonable variations in input parameters is considered. A spreadsheet and python code demonstrating the MSD analysis from this paper are provided in the online supplement alongside details of the mathematical formulation.

Original language	English
Pages (from-to)	596–603
Number of pages	8
Journal	Canadian Geotechnical Journal
Volume	61
Issue number	3
Early online date	30 Oct 2023
DOIs	https://doi.org/10.1139/cgj-2023-0238
Publication status	Published - 1 Mar 2024

Bibliographical note

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© 2024, Canadian Science Publishing. All rights reserved.

Keywords

Mobilisable Strength Design (MSD)
Braced excavation
British Library Euston

Access to Document

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1 Article (Academic Journal)

Results of monitoring at the British library excavation
Simpson, B. & Vardanega, P. J., Apr 2014, In: Proceedings of the ICE - Geotechnical Engineering. 167, 2, p. 99-116 18 p.
Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Cite this

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abstract = "This note presents the application of the mobilisable strength design (MSD) method to the monitoring results of the multi-propped excavation in the south area of the British Library Euston, constructed in a highly overconsolidated stiff clay deposit. The MSD method is an energy-based approach (a nonlinear finite-element method for a single-degree-of-freedom soil-wall system) introduced to develop a simplified design methodology that satisfies both ultimate and serviceability limit states. Wall displacement predictions based on the MSD method are compared with considerable field monitoring data. The sensitivity of the method to reasonable variations in input parameters is considered. A spreadsheet and python code demonstrating the MSD analysis from this paper are provided in the online supplement alongside details of the mathematical formulation.",

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MSD applied to the construction of the British Library basement: a multistage excavation in London Clay

Abstract

Bibliographical note

Keywords

Access to Document

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Research output

Results of monitoring at the British library excavation

Cite this