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Two-dimensional analysis of soil behaviour around a penetrating object

Two-dimensional analysis of soil behaviour around a penetrating object
Two-dimensional analysis of soil behaviour around a penetrating object
Many geotechnical processes, for example pile driving, penetration testing, sampling and various in-situ stress measurement techniques, involve the penetration of an object into the soil. This paper presents the results of two-dimensional numerical analyses carried out to determine the stress-strain response of a soil caused by the penetration of an idealised push-in pressure cell geometry, termed the ‘simple wedge’. The numerical methodology used to analyse soil penetration is described, together with results from strain path method analyses used to validate various aspects of these analyses. The method was used to investigate the influence of various soil and interface parameters on the stress-strain changes that occur within the soil adjacent to the penetrating ‘simple wedge’. The results of these analyses indicate that the stress-strain behaviour of the soil is sensitive to the shear modulus and undrained shear strength of soil. The results also illustrate that the incorporation of interface adhesion leads to significant changes in strain paths close to penetrating objects, and an increase in horizontal total stress.
Richards, D.J.
a58ea81e-443d-4dab-8d97-55d76a43d57e
Farhangi, S
54bb399c-603a-48d9-b25d-ab9f4d7b7afd
Clayton, C.R.I.
8397d691-b35b-4d3f-a6d8-40678f233869
Richards, D.J.
a58ea81e-443d-4dab-8d97-55d76a43d57e
Farhangi, S
54bb399c-603a-48d9-b25d-ab9f4d7b7afd
Clayton, C.R.I.
8397d691-b35b-4d3f-a6d8-40678f233869

Richards, D.J., Farhangi, S and Clayton, C.R.I. (2010) Two-dimensional analysis of soil behaviour around a penetrating object. Preprint. (Submitted)

Record type: Article

Abstract

Many geotechnical processes, for example pile driving, penetration testing, sampling and various in-situ stress measurement techniques, involve the penetration of an object into the soil. This paper presents the results of two-dimensional numerical analyses carried out to determine the stress-strain response of a soil caused by the penetration of an idealised push-in pressure cell geometry, termed the ‘simple wedge’. The numerical methodology used to analyse soil penetration is described, together with results from strain path method analyses used to validate various aspects of these analyses. The method was used to investigate the influence of various soil and interface parameters on the stress-strain changes that occur within the soil adjacent to the penetrating ‘simple wedge’. The results of these analyses indicate that the stress-strain behaviour of the soil is sensitive to the shear modulus and undrained shear strength of soil. The results also illustrate that the incorporation of interface adhesion leads to significant changes in strain paths close to penetrating objects, and an increase in horizontal total stress.

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More information

Submitted date: 2010

Identifiers

Local EPrints ID: 74494
URI: http://eprints.soton.ac.uk/id/eprint/74494
PURE UUID: 342074a5-eff0-469e-b5f4-0b4dc76aad33
ORCID for C.R.I. Clayton: ORCID iD orcid.org/0000-0003-0071-8437

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 11 Dec 2021 03:33

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Contributors

Author: D.J. Richards
Author: S Farhangi
Author: C.R.I. Clayton ORCID iD

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