Gravity Retaining Wall Design Calculations

Walls formed from interlocking concrete blocks are designed as gravity walls defined in bs 8002 2015 as follows.

Gravity retaining wall design calculations.

One is the check for an overturning moment and the other one is the check for sliding. Every retaining wall supports a wedge of soil. Retaining wall cost varies by material. Refer to figure a 4 for the mass or weight calculations.

Gravity walls generally are trapezoidal in shape but also may be built with broken backs. 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 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.

Setback sliding wedge. 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. 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. A review of basic soil.

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. Poured concrete is typically the most expensive followed by wood timber and then stones and pavers. For a detailed discussion of design and analysis parameters the design manual for segmental retaining walls ref.

Planning a retaining wall. The top width of the stem should be not less. Figure a 4 retaining wall weight components. There are a variety of materials you can use to build a retaining wall including patio stones wood and poured concrete.

Gravity wall is an intuitive program for gravity retaining walls design. Basic calculations needed to design a retaining wall. The wedge is defined as the soil which extends beyond the failure. 1 should be consulted.

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. Restrained basement walls gravity walls and segmental retaining walls both gravity and with geogrids. The civilweb gravity retaining wall design spreadsheet completes all the calculations instantly. 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.

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