Abstract
The author examines the use of polymer grids and nets used in soil reinforcement applications. Polymer meshes are increasingly being used for steep sided embankments over 15 M high for land recovery, slope protection and for gabion and mattress structures. Research in ground stabilization has shown that polymer grids are efficient for the reinforcement of granular sub-bases. Their use can reduce the depth of aggregate required to form a stable base. Grid structures, particularly those with high moduli, improve the performance of granular materials laid over soft sub-grades. A number of reinforced earth structures are mentioned which incorporate tensar geogrids. The work of the TRRL is also mentioned in which a motorway slip on the M4 was repaired using netlon geogrid and re-using existing soil to give cost savings of some 70000 pounds. (TRRL)
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