Field performance of weak subgrade stabilization with multilayer geogrids

Field performance of weak subgrade stabilization using a multilayer geogrid is presented in this paper. More specifically, the weak subgrade of a liquid retention pond in Nebraska was stabilized. Field measurement of reinforced and unreinforced sections indicated that the multilayer geogrid reinforcement is capable of reinforcing the soils such that the liner soil compaction requirement was met. A significant savings in the cost of liner construction was achieved by utilizing the geogrid solution in this project.