Long-Term Performance of Geosynthetics in Drainage Applications

摘要

The report contains the results of a thorough study of geosynthetics in highwaydrainage applications. Ninety-one geosynthetic drainage systems in 17 states were exhumed, and the performance of applications was compared against design predictions and construction techniques. These evaluations showed that the existing design methodology is acceptable for granular soils but that the criteria for fine-grained soils may need to be evaluated on a site-specific basis. The report will be of interest to pavement-design and geotechnical engineers in designing drainage applications; it also provides a wealth of information on the subject for researchers.