Gravity Retaining Wall Design Example Pdf

Design and detailing of retaining walls.

Gravity retaining wall design example pdf. 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. Soldier pile walls 22. Segmental retaining walls 17. Flexural and shear stresses are checked in the second design example and it is seen that the magnitudes are very low.

Restrained non yielding walls 20. Walls formed from interlocking concrete blocks are designed as gravity walls defined in bs 8002 2015 as follows. 8 3 2 1 gravity retaining walls gravity wall dimensions may be taken as shown in fig 8 3 a. Naturally the biggest concern is the force imposed by the retained soil.

Flexural and shear stresses in gravity retaining walls will almost always be of minor importance. Sheet pile walls 21. Worked example to accompany mbie guidance on the seismic design of retaining structures for residential sites in greater christchurch version 2 november 2014. Construction topics and caveats 24.

How retaining walls fail. Design example cantilever retaining wall. Structural design of cantilever retaining wall is depend on separating each. 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.

Types of retaining walls gravity wall depends entirely on its own weight to provide necessary stability usually constructed of plain concrete or stone masonry plain concrete gravity wall height 3 m in designing this wall must keep the thrust line within the middle third of the base width no tensile stress to be developed. 14 1 1 wall development process. The top width of the stem should be not less. 3 gravity retaining wall gl1 gl2 retaining walls are usually built to hold back soil mass.

As you can see the weight of the soil or soil pressure. Gravity walls generally are trapezoidal in shape but also may be built with broken backs. This is a cross section of a gravity wall composed of srw facing units and drainage aggregate. Gravity wall design considerations all retaining walls need to be designed to withstand various imposing forces.

Cantilever retaining wall reinforced concrete wall with small dimensions and it is the most economical type and the most common note. Wood retaining walls 14. However retaining wallscanalsobeconstructed for aesthetic landscaping purposes. Pilaster masonry walls 19.

Cantilever concrete retaining walls are commonly used for residential purposes often as integral basement walls. Semi gravity retaining wall reduce the dimensions of the gravity retaining wall by using some reinforcement. The base and other dimensions should be such that the resultant falls within the middle one third of the base.