Surcharge loads acting on retaining walls are additional vertical loads that used to the backfill soil above the top of the wall. Figure 1 shows free body lateral forces acting on retaining walls.Ģ. The wedge theory suggests that a triangular wedge of soil would slide down if the retaining wall were removed suddenly, and the wall has to sustain this wedge soil. Sliding soil wedge theory is the basis for most of the theories by which lateral earth pressure is computed. The main purpose of retaining wall construction is to retain soil that is why soil lateral earth pressure is a major concern in the design. Lateral Earth Pressure Acting on Retaining Wall Retaining wall design could include any or all of loads and forces which are explained in the following sections: 1. There are various types of loads and forces acting on retaining wall, which are: ![]() Loads and Forces Acting on Retaining Wall Loads and Forces Acting on Retaining Wall.
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