Retaining walls, also known as slabs or retainers are generally used to surround a building or any other structure which has to hold back the earth so that the building can be erected. Retaining walls are also relatively simple walls usually used for holding soil vertically so it can be held at different levels in the two sides. The basic structure of a retaining wall consists of a base with a series of posts or columns to support the weight of the soil on top of the base. In some cases, you might also find that these walls will have some sort of a floor or the like. The most common material used to make a retaining wall is brick. The reason why brick is used in making this wall is because it is an affordable material which can also withstand the harsh conditions of the climate. Go here for more info.
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The concrete or the clay layer on the surface of the retaining wall is known as the face and is usually placed on the top of a layer of soil behind the base. The reason for doing this is to create a level foundation for the retaining wall. The depth of the soil behind the base is referred to as the bed or the base. Once the bed is formed, the retaining wall is built up around the bed. In some cases, a retaining wall might need to be built at certain angles to the slope, while some might need to be straight.
One of the most important things that need to be considered while constructing a retaining wall is to ensure that you don’t build it on a slope. The reason behind this is that it increases the pressure behind the retaining wall. If the pressure is high enough, then water might seep through the gap between the retaining wall and the ground, which can cause serious damage to the foundation or even the building. A gravity wall is a type of gravity wall which is constructed using steel mesh netting along with a layer of soil and concrete.