Soil Pressure Acting On The Concrete Retaining Wall

Headers filled with soil face of wall 5.

Soil pressure acting on the concrete retaining wall. Secant pile walls require. Unit weight of soil angle of friction cohesion then the lateral pressure distribution will be known. There are 2 phases in the design of a retaining wall. That is why soil lateral earth pressure is a major concern in the design.

The wall could be a basement wall retaining wall earth support system such as sheet piling or soldier pile and lagging etc. 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. F a 0 5 k γ h s 2 1a where. In this course we will use the word wall to mean the vertical plane on which the earth pressure is acting.

Retaining walls are used for supporting soil laterally so that it can be retained at different levels on the two sides. Only by low concrete strength. Ground pressure acting on cylindrical retaining wall of a shaft in soft ground. Commonly gravity retaining wall is massive because it requires significant gravity load to counter act soil pressure.

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. In the analysis of retaining walls subjected to earth pressure it is very common to observe trapezoidal load distribution on the walls. 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. Of circular diaphragm walls and soil excavation.

The main purpose of retaining wall construction is to retain soil. The resultant force due to the earth pressure acting on a basement wall can be calculated as. Lateral earth pressure acting on retaining wall. Sliding overturning and bearing forces shall be taken into consideration while this type of retaining wall structure is designed.

Retaining wall design could include any or all of loads and forces which are explained in the following sections. A 3 m high backfill sand is supported by a concrete retaining wall and is subjected to a 10 kpa surcharge pressure on the top. Overturning sliding and bearing capacity failures. The retaining wall is checked for stability.

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.