The 13 papers in this volume are arranged in three general groups. The first six papers are on issues related to subsurface drainage of slopes, embankments, and pavement subgrades. The first three describe precipitate formation in subsurface drainage systems because of chemical breakdown of certain types of aggregates, and the remaining three relate to drainage of granular bases, opengraded layers, and jointed concrete pavement. The next three papers describe phenomena at the soil-fluid interface. The movement of fluids in the subsurface is an important consideration migration into the right-of-ways from a contaminated subsurface. The last group of papers describes management systems for unpaved and aggregate-surfaced roads. These papers provide either an overall look at the management systems, both computerized and manual, or specific details of system components that are applicable to unpaved surfaces. (A) For abstracts of some of the papers presented see C 18748 - C 18751.
Samenvatting