00478087

Component

http://onlinepubs.trb.org...trr/1988/1159/1159-005.pdf

https://scholar.google.co...elli&publication_year=1988

Prefabricated wick drains and a preloading program were employed in the construction of a wharf facility in the city of New Orleans to accelerate consolidation of a thick layer of soft clayey soils. Preloading and wick drains were used for a portion of the wharf platform and for an adjoining 10-acre storage area. A proposed future storage area of approximately 32 acres was preloaded without the use of wick drains. A total of approximately 2 million linear feet of drains were installed for the project. Various instrumentations were monitored during construction to evaluate the performance of the preload program in areas both with and without wick drains. Consolidation parameters calculated from the field data are presented and compared with values used in the design of the wick drain installation. After a 12-mo preload period, the clayey soils in the wick drain area had reached an average of 80 percent consolidation in comparison to only about 28 percent consolidation in the nondrain area. The construction preload in the wick drain area successfully preconsolidated the clayey subsoils for the design load condition.

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

01416410

p. 39-46

1988

Transportation Research Record

0309046688

Figures (8) ; References (10) ; Tables (1)

Consolidations; Field studies; Machine valves; Performance; Soft clays; Wharves; Wick drains

Field data; Preloading

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Dec 31 1988 12:00AM

• CORE FLOW-CAPACITY REQUIREMENTS OF GEOCOMPOSITE FIN-DRAIN MATERIALS USED IN PAVEMENT SUBDRAINAGE
• DESIGN, CONSTRUCTION, AND EVALUATION OF WEST VIRGINIA'S FIRST FREE-DRAINING PAVEMENT SYSTEM
• EXPERIENCE WITH WICK DRAINS IN HIGHWAY CONSTRUCTION OVER SOFT CLAY--STORZ EXPRESSWAY, OMAHA, NEBRASKA
• HYDRAWAY EDGEDRAIN EXPERIENCE IN OHIO
• PERFORMANCE OF A PREFABRICATED VERTICAL DRAIN INSTALLATION BENEATH AN EMBANKMENT
• SUBBASE PERMEABILITY AND PAVEMENT PERFORMANCE