Gravity Retaining Wall Design Example

How retaining walls fail.

Gravity retaining wall design example. F c 3000 psi fy 60 ksi natural soil development of structural design equations. 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. Flexural and shear stresses are checked in the second design example and it is seen that the magnitudes are very low. 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.

Swimming pool walls 18. Setback sliding wedge. Weight of the concrete in a gravity wall pro vides stability against overturning. 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. 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. Pilaster masonry walls 19. 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.

Wood retaining walls 14. 14 1 1 wall development process. Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions. Soldier pile walls 22.

The base and other dimensions should be such that the resultant falls within the middle one third of the base. The wedge is defined as the soil which extends beyond the failure. Flexural and shear stresses in gravity retaining walls will almost always be of minor importance. 1 should be consulted.

Restrained non yielding walls 20. T i l e v er walls. Segmental retaining walls 17. Walls formed from interlocking concrete blocks are designed as gravity walls defined in bs 8002 2015 as follows.

Sheet pile walls 21. In this example the structural design of the three retaining wall components is performed by hand. Construction topics and caveats 24. The top width of the stem should be not less.

Every retaining wall supports a wedge of soil. Pre sented in tabular form the designs are for wall heights. Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. Gravity walls generally are trapezoidal in shape but also may be built with broken backs.

Two equations are developed. 8 3 2 1 gravity retaining walls gravity wall dimensions may be taken as shown in fig 8 3 a.