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Soil stiffness in stress paths relevant to diaphragm walls in clay. Powrie, W., Pantelidou, H. & Stallebrass, E. (1998). Geotechnique 48, No. 4, 483 ± 494

Record type: Monograph (Discussion Paper)

The authors report an extensive triaxial testing programme on reconstituted kaolin to investigate the in¯uence of stress paths on the stiffness of soil elements in the vicinity of diaphragm walls. They state that `the effect of the recent stress history of the soil on its stress±strain response is now well established'.
In support of this statement, they present data that appear to show that the stiffness of their kaolin, when tested under triaxial conditions, is strongly in¯uenced by a change in stress path direction. Fig. 8 of their paper shows that a specimen that experienced a reversal in total stress path direction (1808) has a normalised stiffness 4±8 times higher than that of specimens that undergo no reversal in total stress path direction. This ®nding is in broad agreement with results from reconstituted London Clay reported by Atkinson et al. (1990), who showed an increase in stiffness of an order of magnitude when comparing the stiffness after a reversal in effective stress path direction with no change in direction.

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Citation

Clayton, C.R.I. and Heymann, G. (2001) Soil stiffness in stress paths relevant to diaphragm walls in clay. Powrie, W., Pantelidou, H. & Stallebrass, E. (1998). Geotechnique 48, No. 4, 483 ± 494 Thomas Telford 2pp. (doi:10.1680/geot.51.2.177.40286).

More information

Published date: 1 March 2001

Identifiers

Local EPrints ID: 53810
URI: http://eprints.soton.ac.uk/id/eprint/53810
PURE UUID: 647f1169-7aa8-4b5c-8cef-1e33e4be53d5

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Date deposited: 05 Aug 2008
Last modified: 17 Jul 2017 14:37

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