Gravity Retaining Wall Design Example

Restrained non yielding walls 20.

Gravity retaining wall design example. Two equations are developed. In this example the structural design of the three retaining wall components is performed by hand. Wood retaining walls 14. Setback sliding wedge.

How retaining walls fail. Construction topics and caveats 24. The wedge is defined as the soil which extends beyond the failure. The base and other dimensions should be such that the resultant falls within the middle one third of the base.

1 should be consulted. T i l e v er walls. Pre sented in tabular form the designs are for wall heights. Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.

Swimming pool walls 18. Although wall heights up to 8 ft 2 44 m for conventional gravity walls and 14 ft 4 28 m for soil reinforced walls are presented properly engineered walls can exceed these heights. Gravity retaining walls are earth retaining structures that depend primarily on their own self weight and that of any enclosed material to support the retained ground and any structures or loads placed upon it. Retaining walls such as mse walls with precast concrete panel facing that are susceptible to damage from vehicular impact shall be protected by a roadway barrier.

6 foot 1 8 m high gravity retaining wall equivalent fluid pressure of soil 40 pcf 7 1 kn m soil weight 100 pcf 15 7 kn. Gravity retaining wall design can be greatly simplified t h r ough the use of a series of sample designs deve l o p e d recently by the po r tland cement association pca. Cantilevered tilt up walls 13. Gravity walls generally are trapezoidal in shape but also may be built with broken backs.

14 1 1 wall development process. Sheet pile walls 21. Soldier pile walls 22. The top width of the stem should be not less.

Walls formed from interlocking concrete blocks are designed as gravity walls defined in bs 8002 2015 as follows. Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. Weight of the concrete in a gravity wall pro vides stability against overturning. 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.

Flexural and shear stresses in gravity retaining walls will almost always be of minor importance. For a detailed discussion of design and analysis parameters the design manual for segmental retaining walls ref. Segmental retaining walls 17. 8 3 2 1 gravity retaining walls gravity wall dimensions may be taken as shown in fig 8 3 a.

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. Pilaster masonry walls 19.