Retaining Wall Services Westchester
Rigid walls used for supporting soil so it can be held at different levels on both sides are called retaining walls. They are often used in landscaping projects or to hold soil at steep slopes like on a roadway overpass. They can be commonly seen holding land back from roads cut into a hill or mountainside. Retaining walls are also used to provide a barrier to keep land and water separate like you find with a seawall or bulkhead. Our contractors can build many different types of retaining walls to suit a variety of needs. They will work with you to identify your requirements and find the right type of retaining wall for you.
Gravity walls are usually built using heavy materials such as concrete or stone. They depend on their mass to hold soil back and may be slightly angled toward the load to improve their stability. This type of retaining wall was most commonly used in the early 20th century. Short landscaping walls can be made using mortarless stone like masonry blocks. These are known as dry-stacked gravity walls and they can be a bit flexible and don’t need to have a heavy footing. Some larger gravity walls can be made of strong steel wire baskets that are filled with rocks.
There are two types of piling walls used in construction. Sheet pile retaining walls are usually composed of steel, vinyl, aluminum, or wood planks. About two-thirds of the wall is driven into the ground for stability. Taller walls require a tie-back anchor that is connected to the wall and placed in the soil a distance behind. Bored pile retaining walls are built by first excavating away the soil, then assembling a sequence of bored piles. The wall may also include a combination of reinforcing beams and earth anchors, as well as a concrete reinforcing layer. Both walls serve the same purpose but are used depending on where they’re being built.
Cantilevered retaining walls are often manufactured in the shape of an inverted T and are usually made from steel-reinforced cast concrete or masonry. Their purpose is to cantilever loads to a large footing, shifting the pressures coming from the dirt and soil behind the wall into the ground beneath it. These walls often include a buttress (a short wing wall) on the front to provide additional support to help them resist heavy loads. Due to the weight they bear, they also require deep, solid footings made of concrete. These are incredibly durable and use far fewer materials than gravity walls in their construction.
An anchored retaining wall is built using a similar process to the other retaining walls, but it uses cables or a variety of other stays that are anchored into the soil or rock behind it to provide increased strength. Anchors are usually bored into the materials before they are expanded by injecting pressurized concrete to form a bulb in the soil or by using mechanical means. These walls are more complex to build than the others but are best utilized if there is a need to retain heavier loads, or in situations that call for the walls to be slimmer.