Research Article
Feb 1973
Comments on Conventional Design of Retaining Structures
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VIEW THE REPLYPublication: Journal of the Soil Mechanics and Foundations Division
Volume 99, Issue 2
Abstract
The performance of earth retaining structures is analyzed to illustrate certain weaknesses in the conventional design practice. It is shown that the yielding of a retaining structure by an amount required for the earth pressure to drop to the minimum active state does not necessarily provide assurance that active earth pressure will prevail for more than a limited period of time. If a design is based on the active earth pressure, while the actual earth pressure may at times be equal to or greater than the earth pressure at rest, the actual factor of safety would be close to unity. It is demonstrated that anchored bulkheads are particularly vulnerable in this respect because the design of a competent anchorage may require an assumption of forces at the anchor level that are equal to two to three times those computed on the basis of a conventional design using active earth pressure.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 99 • Issue 2 • February 1973
Pages: 181 - 198
Copyright
© 1973 American Society of Civil Engineers.
History
Published in print: Feb 1973
Published online: Feb 12, 2021
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Authors
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Leo Casagrande, F.ASCE
Prof. of Found. Engrg., Harvard Univ., Cambridge, Mass.
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