Soil Pressure Acting On The Concrete Retaining Wall

Normally earth pressure on a retaining wall is assumed to adopt a triangular load distribution but due to surcharge which is usually assumed to act on the ground surface the top of the wall experiences some degree of lateral pressure.

Soil pressure acting on the concrete retaining wall.

Retaining wall design could include any or all of loads and forces which are explained in the following sections. A retaining wall is a structure designed and constructed to resist the lateral pressure of soil when there is a desired change in ground elevation that exceeds the angle of repose of the soil. F a 0 5 k γ h s 2 1a where. Calculate the at rest and active lateral earth pressure acting against the wall using a finite element model built in abaqus.

Experienced by the vertical wall on which the pressure is acting as shown in figure 2 page 4. Lateral earth pressure acting on retaining wall. Secant pile walls require. Sliding overturning and bearing forces shall be taken into consideration while this type of retaining wall structure is designed.

Crib wall design basic soil parameters. That is why soil lateral earth pressure is a major concern in the design. The main purpose of retaining wall construction is to retain soil. Overturning sliding and bearing capacity failures.

In the analysis of retaining walls subjected to earth pressure it is very common to observe trapezoidal load distribution on the walls. Of circular diaphragm walls and soil excavation. Retaining walls are used for supporting soil laterally so that it can be retained at different levels on the two sides. Ground pressure acting on cylindrical retaining wall of a shaft in soft ground.

The wall could be a basement wall retaining wall earth support system such as sheet piling or soldier pile and lagging etc. Unit weight of soil angle of friction cohesion then the lateral pressure distribution will be known. The resultant force due to the earth pressure acting on a basement wall can be calculated as. Design of retaining walls alternative soil pressure diagram for an anchored wall caltran 2004 anchors constructed from the top down in sandy soils wall with multiple levels of anchors p a p total h 1 3 h 1 1 3h n 1 p total total lateral force on the wall face to provide a factor of safety of 1 3 for the backfill.

F a resultant force acting on the basement wall kn h s height of backfill soil m γ specific weight of backfill soil kn m 3 k coefficient of earth pressure at rest. Only by low concrete strength. In this course we will use the word wall to mean the vertical plane on which the earth pressure is acting. The retaining wall is checked for stability.

Commonly gravity retaining wall is massive because it requires significant gravity load to counter act soil pressure.