Behavior of Plastic Sand Confinement Grids.

摘要

The concept of improving the load carrying ability of unbound aggregates, particularly sand, by lateral confinement has been investigated for some time. Extensive full-scale testing of the trafficability of confined beach sand pavement layers has been carried out by the U.S. Corps of Engineers. Confinement is achieved using a honeycomb type of grid cell structure developed by the Corps and constructed of various materials. This report covers results obtained from a refined analysis of pavement response to high wheel loads in terms of the effects on grid confined layers. Finite element and elastic layer analysis results are presented and compared with the earlier results.