Gravity Retaining Wall Design Calculations

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 wall design calculations.

Basic calculations needed to design a retaining wall. Every retaining wall supports a wedge of soil. There are a variety of materials you can use to build a retaining wall including patio stones wood and poured concrete. 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.

Refer to figure a 4 for the mass or weight calculations. Try it for free without analysis restrictions. The wedge is defined as the soil which extends beyond the failure. Gravity walls generally are trapezoidal in shape but also may be built with broken backs.

The civilweb gravity retaining wall design spreadsheet is a easy to use design spreadsheet which can be used to design concrete retaining walls in accordance with bs en 1997 and bs en 1992. One is the check for an overturning moment and the other one is the check for sliding. Figure a 4 retaining wall weight components. Setback sliding wedge.

Retaining wall cost varies by material. Retaining walls instantly enhance any landscape design. I m now doing the calculations so much faster and easier than doing it manually and most importantly the technical customer service team are great and they respond instantly and professionally to any. For a detailed discussion of design and analysis parameters the design manual for segmental retaining walls ref.

Other topics include sheet pile walls tilt up retaining walls soldier pile walls gabion walls counterfort walls pilaster walls and walls with pile or pier foundations. Planning a retaining wall. Walls formed from interlocking concrete blocks are designed as gravity walls defined in bs 8002 2015 as follows. The civilweb gravity retaining wall design spreadsheet completes all the calculations instantly.

Poured concrete is typically the most expensive followed by wood timber and then stones and pavers. 1 should be consulted. Restrained basement walls gravity walls and segmental retaining walls both gravity and with geogrids. The base and other dimensions should be such that the resultant falls within the middle one third of the base.

The factor of safety against sliding may be expressed by the equation. ʃf r sum of the horizontal resisiting forces ʃfsl sum of the horizontal driving forces figure 8 2 indicates that the shear strength of the soil immediately below the base slab may be expressed as. 8 3 2 1 gravity retaining walls gravity wall dimensions may be taken as shown in fig 8 3 a. The weight of the retaining wall including the gravity loads within it plays a vital role in performing the stability check.

The top width of the stem should be not less.