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The design of stiff in situ walls retaining overconsolidated clay. Part 1: Short term behaviour. Part 2: Long term behaviour

The design of stiff in situ walls retaining overconsolidated clay. Part 1: Short term behaviour. Part 2: Long term behaviour
The design of stiff in situ walls retaining overconsolidated clay. Part 1: Short term behaviour. Part 2: Long term behaviour
In urban areas of the United Kingdom increased use is being made of embedded retaining walls both for new road construction and road improvements. Many of the urban areas in the UK are founded on deposits of stiff, overconsolidated clays of high plasticity which present difficulties for the design of geotechnical structures. A programme of research into the behaviour of embedded walls in stiff clay is being carried out by the Transport and Road Research Laboratory, aimed at improved methods of design. A method is set out by which designers can check both the safety and serviceability of relatively stiff reinforced concrete retaining walls constructed in-situ in overconsolidated clay. The first calculation is of the mean soil strength which must be mobilised for equilibrium. Shear stress-strain data are then used to deduce the characteristic shear strain. This is then distributed between the various soil zones, according to geometrical rules, and an estimate of wall deflection is made. A comparison is given between the pattern of ground movement predicted by this method and that observed in centrifuge model tests. It is also shown that the use of mean mobilised strength leads to larger bending moments in the long term than the method proposed in CIRIA Report 104 (see IRRD 281371). Part one of this report was also published in Ground Engineering 1989 v22 n8 (see IRRD 827411).

0266-7045
199
Transport and Road Research Laboratory
Bolton, M.D.
16dbae03-7966-48fd-ae56-41966133e588
Powrie, W.
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Symons, I.F.
38fa73db-81f7-4ea6-a666-b68c1905536a
Bolton, M.D.
16dbae03-7966-48fd-ae56-41966133e588
Powrie, W.
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Symons, I.F.
38fa73db-81f7-4ea6-a666-b68c1905536a

Bolton, M.D., Powrie, W. and Symons, I.F. (1990) The design of stiff in situ walls retaining overconsolidated clay. Part 1: Short term behaviour. Part 2: Long term behaviour (Contractor Report, 199) Wokingham, GB. Transport and Road Research Laboratory 24pp.

Record type: Monograph (Project Report)

Abstract

In urban areas of the United Kingdom increased use is being made of embedded retaining walls both for new road construction and road improvements. Many of the urban areas in the UK are founded on deposits of stiff, overconsolidated clays of high plasticity which present difficulties for the design of geotechnical structures. A programme of research into the behaviour of embedded walls in stiff clay is being carried out by the Transport and Road Research Laboratory, aimed at improved methods of design. A method is set out by which designers can check both the safety and serviceability of relatively stiff reinforced concrete retaining walls constructed in-situ in overconsolidated clay. The first calculation is of the mean soil strength which must be mobilised for equilibrium. Shear stress-strain data are then used to deduce the characteristic shear strain. This is then distributed between the various soil zones, according to geometrical rules, and an estimate of wall deflection is made. A comparison is given between the pattern of ground movement predicted by this method and that observed in centrifuge model tests. It is also shown that the use of mean mobilised strength leads to larger bending moments in the long term than the method proposed in CIRIA Report 104 (see IRRD 281371). Part one of this report was also published in Ground Engineering 1989 v22 n8 (see IRRD 827411).

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More information

Published date: 1990

Identifiers

Local EPrints ID: 75451
URI: http://eprints.soton.ac.uk/id/eprint/75451
ISSN: 0266-7045
PURE UUID: 4970d307-06fd-4b49-833c-be9db08e3df5
ORCID for W. Powrie: ORCID iD orcid.org/0000-0002-2271-0826

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 11 Dec 2021 03:04

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Contributors

Author: M.D. Bolton
Author: W. Powrie ORCID iD
Author: I.F. Symons

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