A cantilevered retaining wall is a type of masonry installation that holds back earth loads. It uses a thin stem of reinforced masonry in concrete or mortar. Engineers evaluate the area to determine the best retaining wall design, considering factors like soil pressure and landslide risk. Local zoning officials may require a retaining wall for grading or topography concerns. Refurbishing an original stone retaining wall into a cantilevered design is also possible.
A cantilevered retaining wall is a form of masonry installation that holds a large amount of earth in place. The cantilevered design is just one of several variations on a retaining wall design, using various principles to handle earth loads. Engineers evaluate a specific area to see which type of retaining wall is the best choice for holding earth loads in place.
A cantilevered concrete retaining wall uses a relatively thin stem of cast-in-place, steel reinforced masonry in concrete or mortar. In a cantilevered retaining wall design, a soil pressure vector acts horizontally against the side of the wall. The underside of the wall has a downward gravity vector. That gravity vector produces an opposing upward force. The resulting vector contrasts the soil pressure vector and pushes against the soil load.
The lower element of a cantilevered retaining wall is covered by the earth load. This means that a casual observer will not be able to see if a retaining wall has a cantilevered design. Blueprints or other official documents can show whether a retaining wall was installed in a cantilevered design.
In most public or commercial projects and most residential projects, a cantilevered retaining wall design or other similar design must be submitted to local zoning officials to ensure it incorporates certain criteria for an area. Some of these include stormwater runoff plans and public safety codes. Professional engineers will also evaluate whether the retaining wall has sufficient structure to handle the lateral soil pressure mentioned above.
Another aspect that engineers consider when designing retaining walls is the ability to moderate the effects of a landslide or avalanche. Retaining walls can be useful in protecting soil from the types of movement associated with these natural disasters. Considering landslide risk and liquefaction risk, the water saturation of the earth, is part of evaluating the functioning of a retaining wall.
In properties of historic significance, an original stone retaining wall can benefit from refurbishment into a cantilevered design or similar structure. In new housing communities, a local zoning or other government council may require a retaining wall on a property in order to accommodate concerns about grading or changing the topography of an area. Examining the various choices of retaining walls helps a building contractor or other party assess the overall costs of maintaining an area containing a slope or slope.
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