00232497

Component

http://onlinepubs.trb.org...rbbulletin/115/115-002.pdf

THE ENGINEERING DETAILS ARE DESCRIBED IN THE ESTABLISHMENT OF AN EMBANKMENT ON A SOFT FOUNDATION CONSISTING OF 60 FT. OF MARL AND SILT. AFTER ESTABLISHING THE SOIL PROFILE BY FIELD EXPLORATIONS, UNDISTURBED SOIL SAMPLES WERE TESTED TO DETERMINE THE STRENGTH AND CONSOLIDATION CHARACTERISTICS OF OF THE FOUNDATION MATERIALS. ANALYSES WERE THEN MADE OF VARIOUS DESIGN TREATMENTS, CONSIDERATION BEING GIVEN TO THE AVAILABILITY OF MATERIALS, THE RIGHTS-OF-WAY REQUIREMENTS, THE POSSIBLE CONSTRUCTION SEQUENCE AND REQUIRED TIME OF COMPLETION, AND THE OVERALL COSTS. THE USE OF SAND DRAINS WAS FOUND TO BE MOST ADVANTAGEOUS. A DESCRIPTION IS GIVEN OF THE PRECONSTRUCTION CONSIDERATION INVOLVING THE: DESIGN LAYOUT OF THE DRAINS (SPACING AND DEPTH), DIAMETER OF DRAINS, NECESSARY CONSTRUCTION CONTROL DEVICES SUCH AS PORE-PRESSURE DEVICES, SETTLEMENT PLATES AND ALIGNMENT STAKES, AND RATE OF CONSTRUCTION AND SURCHARGE. COMPARISON IS MADE BETWEEN THE ANTICIPATED AND ACTUAL BEHAVIOR OF THE OF THE EMBANKMENT AND ITS FOUNDATION DURING CONSTRUCTION. THE DATA OBTAINED FROM FIELD MEASUREMENTS ARE PRESENTED AND ARE COMPARED TO THOSE OBTAINED FROM PRECONSTRUCTION ANALYSES. COMMENTS ARE MADE CONCERNING THE EFFECTIVENESS OF SAND DRAINS AT THIS INSTALLATION AND A NOTE MADE OF THE GENERAL APPLICATION OF THE PROCEDURE OF TREATMENT. /AUTHOR/

No 115, pp 15-30, 22 FIG 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.

01410516

16p

1955

Highway Research Board Bulletin

Digital/other

Consolidation; Construction management; Embankment foundations; Marl; Pore pressure; Sampling; Sand drains; Settlement (Structures); Silts; Soft rock; Soil consolidation test; Soils; Structural plates

Soil consolidation

Construction; Geotechnology; Highways

TRIS, TRB

Jun 29 1970 12:00AM

• CONTROL OF SLIDE BY VERTICAL SAND DRAINS
• ECONOMIC ASPECTS OF VERTICAL SAND DRAINS
• MODIFICATION OF SAND-DRAIN PRINCIPLE FOR PRESSURE RELIEF IN STABILIZING EMBANKMENT FOUNDATION
• STABILIZATION OF MARSH DEPOSIT