Geotextile-Reinforced Unpaved Road Design

by Jean-Pierre Giroud, (M.ASCE), Woodward-Clyde Consultants, Geotextiles and Geomembranes Group, Chicago, Ill. 60603,
Laure Noiray, Woodward-Clyde Consultants Geotextiles and Geomembranes Group, Chicago, Ill. 60603,


Serial Information: Journal of the Geotechnical Engineering Division, 1981, Vol. 107, Issue 9, Pg. 1233-1254


Document Type: Journal Paper

Discussion: Ingold T. S. (See full record)
Discussion: Kinney Thomas C. (See full record)
Discussion: Koerner Robert M. (See full record)
Discussion: McGown Alan (See full record)
Discussion: Miller D. G. (See full record)
Discussion: Visser Alex T. (See full record)
Closure: (See full record)

Abstract: By providing reinforcement, geotextiles improve the performance of unpaved roads, and for a given traffic, the thickness of the aggregate layer can be reduced. This paper explores the mechanism of geotextile reinforcement of roadways, and a method is developed which enables the engineer to calculate the required thickness of aggregate layer and make a proper selection of the geotextile to be used. Charts are presented to assist in the design of geotextile-reinforced unpaved roads and to evaluate the reduction of aggregate thickness resulting from the use of a geotextile. Practical examples and comparisons with full scale tests are presented.

Subject Headings: Geosynthetics | Highway and road design | Thickness | Aggregates | Highways and roads | Traffic management | Comparative studies | Full-scale tests

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