Segmental retaining walls typically fall into one of two categories.
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Gravity retaining wall
 The first category — a gravity wall — is a retaining wall that does not use soil reinforcement. A gravity wall has height limitations specific to each product. An advantage of this type of retaining wall is that is requires a smaller work area behind the wall. A gravity wall relies on the weight and setback of the block to resist the soil forces being exerted on the wall.
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Geosynthetic-reinforced retaining wall
 The second category is a geosynthetic-reinforced wall, which needs to be designed by a qualified engineer. With a reinforced retaining wall there are (theoretically) no height limitations, and they are used in larger applications. They require more work area behind the structure. The block of soil is stabilized by introducing reinforcement layers into the soil mass behind the facing units. The larger the stabilized soil mass, the more soil can be retained or held back. The geosynthetic reinforcement in the soil extends past the theoretical failure plane and serves to create a large rectangular mass of block and soil, restraining the retained soil.
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For information on all Anchor Wall Systems Products, installation seminars and training videos, contact your local dealer. Also ask your dealer for a printed version of our Estimating and Installation Manual.
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