00470969

Component

http://onlinepubs.trb.org...trr/1987/1137/1137-009.pdf

https://scholar.google.co...mael&publication_year=1987

The selection of the coefficient of subgrade reaction K for the design of rafts, beams, and rigid pavements is not satisfactory because of the wide range of values recommended in the literature for each soil type and density. The results of recently conducted field footing tests at seven sites in Kuwait are analyzed for the purpose of relating the vertical subgrade coefficient K to the standard penetration test values for desert sands. The footings were square plain concrete, cast directly on the ground surface and range in size from 0.25 m to 1 m. Several variables were investigated including footing size, soil properties, footing depth, and material. A simple relationship was found between K and the standard penetration test values that takes into account the effect of the footing size or the width of the loaded area. Test results are compared with other plate load tests on granular soils in different areas around the world, to establish confidence in the derived correlation and to explain the causes of variation in different granular deposits.

Publication of this paper sponsored by Committee on Soil and Rock Properties. 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

01418180

pp 82-89

1987

Transportation Research Record

0309045134

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Figures (10) ; Maps (1) ; References (15) ; Tables (1)

Alternatives analysis; Coefficient of subgrade reaction; Deserts; Field tests; Footings; Plate bearing test; Sand; Size; Soil penetration test; Width

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Aug 31 1988 12:00AM

• BEHAVIOR AND DESIGN OF VERTICAL MOISTURE BARRIERS
• CHARACTERIZATION OF CONSTRAINED SWELLING OF CLAY
• CHARACTERIZATION OF THE METEOROLOGICAL DEMAND FOR THE DESIGN OF VERTICAL MOISTURE BARRIERS
• ROADWAY PERFORMANCE IN AN EXPANSIVE CLAY
• SOIL MECHANICS PRINCIPLES FOR HIGHWAY ENGINEERING IN ARID REGIONS
• SOIL SUCTION MEASUREMENTS AT SEVERAL SITES IN WESTERN CANADA
• THE EFFECT OF CLIMATE ON EXPANSIVE SOILS SUPPORTING ON-GRADE STRUCTURES IN A DRY CLIMATE
• USING NONDESTRUCTIVE TESTING IN THE SEMI-ARID ZONE OF PERU