Concrete Block Retaining Wall Design Example

Despite the many references a single volume on retaining wall design for the professional practitioner and civil engineering student could not be found.

Concrete block retaining wall design example.

Conditions and wall geometry n a design example which demonstrates the use of the australian standard and analysis method n analysis of cohesive soils. In this example the structural design of the three retaining wall components is performed by hand. F c 3000 psi fy 60 ksi o development of structural design equations. Pile design example.

F c 3000 psi fy 60 ksi natural soil development of structural design equations. Hence this attempt to condense simplify and compile information from many. The wedge is defined as the soil which extends beyond the failure. Foundation engineering concrete design masonry design and in all sorts of related topics.

Let s take a fresh look and see how concrete interlocking blocks or more commonly known as concrete lego blocks can be used as the solution. Some of the advantages of using large precast concrete block systems for retaining structures include. Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall. Two equations are developed.

Over its intended service life other loads may also be applied to the structure. Ce 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions. Traditional retaining wall solutions can be expensive and restrictive for example cast in situ construction is slow and expensive to build and precast retaining wall panels are restricted in height. In this example the structural design of the three retaining wall components is performed by hand.

The coefficient of friction between the footing and foundation soil k 1 is 0 25 and the allowable soil bearing pressure is 2 000 psf 95 8. Assume level backfill no surcharge or seismic loading active earth pressure and masonry laid in running bond. Every retaining wall supports a wedge of soil. Movement of the retaining wall.

Design the reinforced concrete masonry cantilever retaining wall shown in figure 2. For retaining wall applications the structure must be designed to resist the forces from the retained material acting on one side of the wall. Concrete strength al ൯ne for an 10 thick wall with 5 10 and 2 5 clear to strength steel will only reduce the nominal moment capacity of the secti對on from 136 68 to 135 66 inch kips 尩 if the concrete strength decreased from 3 5 to 3 0 ksi. A retaining wall that relies solely on it s own weight to stand up is called a gravity wall allan block combines the basic engineering principles of setback leverage and total unit mass with simple mechanics to make highly stable gravity walls.

Sketches of the retaining wall forces should be considered to properly distinguish the different forces acting on our retaining wall as tackled in the previous article retaining wall. Two equations are developed in this.