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Designers of geotextile systems must place greater emphasis on a review of construction criteria compared to typical civil engineering design. This enhanced awareness of the construction procedure and relevant criteria is necessitated by the lack of significant construction experience in the use of these materials by most contractors and field personnel. This paper reviews the four primary roles of geotextiles and discusses specific construction criteria for each. Information presented in this paper has been obtained primarily from two editions of the Geotextile Engineering Manual, as compiled for the Federal Highway Administration, and from actual field and contractual experience of the authors.
geotextile, drainage, erosion, separation, reinforcement, survivability
Corporate engineer, Soil & Material Engineers, Inc., Cary, NC
Research scientist, Virginia Transportation Research Council, Charlottesville, VA