The first step in retaining wall construction is to lay a good base. Experienced engineers and contractors emphasize this point. A good base is one that is at least six inches below grade. The base should be composed of compacted soil or a combination of sand and gravel. If the wall is to be taller than 6 inches, the base should be even lower.
Another type of retaining wall construction is called anchored retaining wall construction. This type of wall provides additional strength for the wall and is typically driven into the soil using a boring machine. The anchors are then expanded either by mechanical means or by pressurized concrete that forms a bulb in the soil. This type of wall is a good choice if you need a sturdy retaining wall that can support a heavy load.
Soil nailing is another option for retaining wall construction. This method uses steel reinforcing bars to reinforce the soil. These are installed in pre-drilled holes, which are grouted into place. Soil nailing may also be used in combination with other types of walls. However, it is advisable to consult a professional before starting the construction process.
If you have a sloped site, retaining walls can help direct water flow. This is especially useful if the slope is near a body of water. In addition, retaining walls must meet certain city and state regulations. A professional engineer can help you design a functional wall with structural strength in mind. They can also conduct a site investigation to determine the height of the water table and the ground bearing capacity.
The most modern type of retaining wall construction is constructed with concrete blocks. These artificially produced blocks offer a wide range of design options. A concrete wall is a good choice for retaining soil because it is strong even when pressure is applied. It can be durable for decades. Concrete blocks can also be customized to form curves and are much easier to install than other block types.
The most important aspect of retaining wall construction is the ability to hold soil. Whether the wall is made of concrete or brick, it will support soil and vegetation behind it. Retaining walls are commonly used in landscape shaping and to stabilize slopes. They can also be used as backdrops to outdoor kitchens.