Centrifuge model tests on embedded retaining walls supported by earth berms
Centrifuge model tests on embedded retaining walls supported by earth berms
Earth berms are often used for the temporary support of embedded retaining walls, but there is a lack of information concerning the factors that influence their behaviour. In this paper, the results of a series of plane strain, 1:100 scale centrifuge model tests on berm-supported embedded retaining walls in overconsolidated clay are presented. It is shown that earth berms will probably be more effective in reducing soil and wall movements than an increase in the depth of wall embedment; that an increase in the depth of embedment of a wall of given stiffness supported by a berm of a given size will lead to an increase in wall bending moments, but only a small reduction in wall and soil movements; and that the presence of the berm in limiting wall movements and possibly preventing collapse becomes more significant as drainage occurs.
basements, centrifuge modelling, diaphragm and in situ walls, excavation, model tests, retaining walls
89-106
Powrie, W.
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Daly, M.P.
dd3a9bf8-6e9f-4d60-ad5d-785dbd4efb82
March 2002
Powrie, W.
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Daly, M.P.
dd3a9bf8-6e9f-4d60-ad5d-785dbd4efb82
Powrie, W. and Daly, M.P.
(2002)
Centrifuge model tests on embedded retaining walls supported by earth berms.
Géotechnique, 52 (2), .
(doi:10.1680/geot.52.2.89.40924).
Abstract
Earth berms are often used for the temporary support of embedded retaining walls, but there is a lack of information concerning the factors that influence their behaviour. In this paper, the results of a series of plane strain, 1:100 scale centrifuge model tests on berm-supported embedded retaining walls in overconsolidated clay are presented. It is shown that earth berms will probably be more effective in reducing soil and wall movements than an increase in the depth of wall embedment; that an increase in the depth of embedment of a wall of given stiffness supported by a berm of a given size will lead to an increase in wall bending moments, but only a small reduction in wall and soil movements; and that the presence of the berm in limiting wall movements and possibly preventing collapse becomes more significant as drainage occurs.
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Published date: March 2002
Keywords:
basements, centrifuge modelling, diaphragm and in situ walls, excavation, model tests, retaining walls
Organisations:
Civil Engineering & the Environment
Identifiers
Local EPrints ID: 39411
URI: http://eprints.soton.ac.uk/id/eprint/39411
ISSN: 0016-8505
PURE UUID: 47cde3d6-fd33-43ba-b7f4-a028b0f0afdf
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Date deposited: 28 Jun 2006
Last modified: 16 Mar 2024 02:47
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Author:
M.P. Daly
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