Reinforced earth structures are support structures obtained by combining a material, earth, which has good intrinsic compression resistance with a reinforcing geosynthetic which has excellent traction resistance.
Thus a higher performing “composite material” is obtained using the best properties of the component parts. Geosynthetic reinforcements (called geogrids) are placed horizontally between successive layers of earth in this composite system. The system works with friction in tension at a tangent and gives the system a higher stress resistance than can be achieved by the earth itself.
In most cases a reinforced earth structures are designed to contain and / or stabilize escarpments, to make good slopes, to create levees both in rivers and landfills using, where at all possible, suitable materials.