You now should understand what our Standard unit is and what it looks like.
You should also have an understanding of the types of segmental retaining walls:
Unreinforced walls , which rely on the weight of the wall units alone to resist soil loads.
Reinforced walls , which use horizontal layers of geogrid soil reinforcement to stabilize the soil behind the wall units.
The next section, Wall Components, includes all the components of an SRW .