How To Design The Key Of A Concrete Retaing Wall

Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.

How to design the key of a concrete retaing wall.

In this photo increte contractors installed a poured in place decorative concrete wall system called stone crete that creates deep relief stone walls with a variety of available textures and colors. M 16 at 406 mm o c. 5 bars at 16 in. 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.

The retaining wall is fixed to the reinforced concrete slab foundation with a shear key for sliding resistance. X sk flexural reinforcement from stem is extended straight into shear key near the. Preliminary proportioning of cantilever retaining wall. These consists of a concrete or masonry wall of uniform thickness vertical wall reinforcing and transverse footing reinforcing are all designed for the lateral shear and cantilever bending movement plus the vertical weights of the wall footing and earth fills.

For guidance see aci standard 318 ref. 2 or reinforced concrete design handbooks. Numerous textbooks and technical papers on soil mechanics foundation engineering concrete design masonry design and in all sorts of related topics. Stone crete is used for sound barrier walls retaining walls subdivision entry walls or wherever.

Focuses on the analysis and design of a tapered cantilever retaining wall including a comparison with model results from the engineering software programs spwall and spmats. Using strength design table 2 this wall requires no. The design of the reinforced concrete footing and key should conform to american concrete institute requirements. Of leveling sand and half the height of the first course of blocks.

How to build a concrete wall figure a. Despite the many references a single volume on retaining wall design for the professional practitioner and civil engineering student could not be found. Of compacted base 1 in. B short retaining walls vertical walls up to about 3m in height are usually built as shown in figure 1 b.

For economical design soil pressure resultant r must be in line with front face of wall. The thickness of base slab is h 12 or 8 of the height of wall surcharge.