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The first part of this paper presents a review of existing design methods for selected geotextile applications such as filtration, drainage, and unpaved roads. The discussion shows that geotextile applications can be designed using rational methods and that most of these methods are similar to classical soil mechanics design methods. Therefore, geotechnical engineers are well-equipped with the basics for designing with geotextiles, and designs that one would think are “tomorrow's designs” can, in fact, be done as soon as tomorrow morning by those geotechnical engineers who are aware of available design methods. The second part of this paper is an attempt at predicting the evolution of design concepts and design methods. The following topics are addressed: new materials, new construction methods, progress in the evaluation of geotextile properties, and expected results from research. The discussion shows how important it is for geotechnical engineers to keep abreast of new developments.
design, drainage, filtration, future developments, geotechnical engineering, geotextiles, geosynthetics, soil, soil reinforcement, unpaved roads
Principal engineer, GeoServices, Inc., Boynton Beach, FL