摘要: |
Companies engineer geocomposite drainage systems to minimize costly conventional graded-aggregate and/or perforated-pipe subsurface drainage systems. Geonets, sheet drains, pavement edge drains and prefabricated vertical drains (PVD) have reached acceptance as state-of-the-practice because they provide sufficient in-place drainage and offer reduced material cost, installation time and design complexity over traditional systems. The selection and design criteria for this category of products are generally simple. However, because of the numerous applications for subsurface drainage systems and varying performance parameters, designers must pay careful attention to the product-performance parameters applicable to a particular subsurface drainage application. |