Permanent tieback, soil nail and cantilevered pile retaining walls are a practical and economical solution when a permanent wall is to be built in a cut or partial cut-and-fill situation. This is particularly true when it is desirable to leave a road, structure, slope or other feature behind the wall undisturbed.
Permanent walls are typically designed to last for a long time (often 50 to 100 years). For this reason, the wall environment, including the soil and groundwater, are evaluated to determine their potential for corrosion. Schnabel’s wall construction specialists are also careful to ensure that the tiebacks, soil nails, facing connections and all the other details of the wall are designed to last for the lifetime of the wall.
To ensure the longevity of the wall, the facing is usually constructed using reinforced cast-inplace concrete, shotcrete, or pre-cast concrete panels. The wall facing can also have any number of aesthetic treatments to improve its appearance or help it blend in to the surrounding environment.