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Title:

COMPACTION PRESTRESS

Accession Number:

00468623

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309044723

Abstract:

The compressibility and shear strength characteristics of compacted soils, for both short- and long-term periods, are dependent on, among other factors, the as-compacted prestress and saturated prestress induced in the soil. Their presence is manifested in the consolidation and undrained shear test results available in the literature. Consequently, for an accurate interpretation of these test results, a knowledge of the induced compaction prestresses is essential. A procedure for the prediction of as-compacted prestress based on the precompaction soil conditons and the relevant compaction independent variables is presented. The procedure is based on general soil behavior using results from simple laboratory tests. The calculated values of the as-compacted prestress were compared with experimentally determined as-compacted prestresses, and a good correspondence was obtained. Using statistical regression techniques, prediction equations were derived for the experimentally determined as-compacted prestress, volumetric strain due to saturation, and saturated prestress. The volumetric strain and saturated prestress show a strong dependence on the values of as-compacted prestress. Thus, with a better understanding of the compaction prestresses, which can be controlled through compaction specifications, fills and embankments can be constructed with more predictable compressibility and shear strength behavior.

Supplemental Notes:

Publication of this paper sponsored by Committee on Quality Assurance and Acceptance Procedures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Title:

Geotechnology

Monograph Accession #:

01418086

Authors:

Nwabuokei, S O
Lovell, C W

Pagination:

pp 105-114

Publication Date:

1987

Serial:

Transportation Research Record

Issue Number: 1119
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309044723

Media Type:

Print

Features:

Figures (10) ; References (5) ; Tables (1)

Old TRIS Terms:

Subject Areas:

Data and Information Technology; Geotechnology; Highways; I42: Soil Mechanics

Files:

TRIS, TRB, ATRI

Created Date:

May 31 1988 12:00AM

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