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Title:

PERFORMANCE OF A PREFABRICATED VERTICAL DRAIN INSTALLATION BENEATH AN EMBANKMENT

Accession Number:

00478088

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309046688

Abstract:

An embankment was constructed over foundation soils consisting of marls overlying soft clayey silts. Analyses of the foundation conditions indicated that the embankment could not be constructed safely within the required time frame of 9 mo without foundation treatment. In addition, the embankment would be subjected to a large amount of settlement. It was decided to use prefabricated vertical drains spaced at 4.0, 5.5, and 7.5 ft on centers in order to accelerate consolidation of the soft foundation soils. This would accomplish a twofold purpose of transitioning differental settlement behind a pile-supported abutment and developing the necessary foundation strength required to support the embankment. The embankment was constructed in two stages with waiting periods. Performance of the drains was monitored with piezometer and settlement recording devices. This instrumentation indicated that the prefabricated vertical drains performed as expected and are a viable alternative to conventional vertical sand drains. This paper presents an evaluation of the performance and effectiveness of the prefabricated vertical drain system.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1159, Prefabricated Vertical Drains and Pavement Drainage Systems. 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 Accession #:

01416410

Authors:

Kyfor, Z
Masi, J
Gemme, R

Pagination:

p. 47-57

Publication Date:

1988

Serial:

Transportation Research Record

Issue Number: 1159
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309046688

Features:

Figures (16) ; References (5) ; Tables (4)

Uncontrolled Terms:

Effectiveness

Subject Areas:

Geotechnology; Highways; I42: Soil Mechanics

Files:

TRIS, TRB, ATRI

Created Date:

Dec 31 1988 12:00AM

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