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Retaining walls in Dublin Boulder Clay, Ireland
Date Issued
2012-01
Date Available
2013-03-14T15:07:08Z
Abstract
A good number of deep excavations have been recently completed in Dublin Boulder Clay, Ireland. These have included propped walls up to 25 m deep and permanent cantilevers 7.5 m high. Experience elsewhere in the world was used to design and construct these walls. However, case history data have shown that the behaviour of the
walls in Dublin Boulder Clay is very rigid and much stiffer than comparable systems worldwide. It appears this behaviour is due to the inherent natural strength and stiffness of the soil and the slow dissipation of excavation induced depressed pore pressures or suctions. There appears to be scope for developing more efficient designs and
in particular for reducing propping requirements. For temporary works, the use of undrained parameters in serviceability limit state calculations together with implementation of the observational approach on site could be considered for future schemes.
Type of Material
Journal Article
Publisher
Institution of Civil Engineers
Journal
Proceedings of the ICE - Geotechnical Engineering
Volume
165
Issue
4
Start Page
247
End Page
266
Copyright (Published Version)
2012, ICE Publishing Ltd
Language
English
Status of Item
Peer reviewed
ISSN
1353-2618, 1751-8563
This item is made available under a Creative Commons License
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