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| StoneWall Select: Installation | ||
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Surcharged Walls
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In many cases a retaining wall must carry additional loads or surcharges in addition to the earth behind the wall. These surcharges exert additional pressure on the wall. Common surcharge loads are: If there is a surcharge placed on a wall, the maximum unreinforced wall height will decrease. This added pressure may also require additional geogrid layers and/or deeper embedment of the geogrid |
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| 1. Sloped backfill. |  |
| 2. Terraced retaining walls when the spacing between tiers is less than two times the lower wall height. |  |
| 3. Buildings, outdoor storage. |  |
| 4. Parking lots, streets and highways which are loaded by vehicular traffic. |  |
| Whenever a surcharge exists, the wall must be engineered to carry the additional load. These unique conditions and requirements fall outside the scope of this manual. | |