Hand-crafted Concrete Retaining Walls

After Patio 2

Let the strength and durability of hand-crafted, specially-designed concrete not only enhance the aesthetic value of your home, but provide the structural support you need as well.

A retaining wall is a structure that holds back soil or rock from a building, structure or area. Retaining walls prevent down slope movement or erosion and provide support for vertical or near-vertical grade changes. Structures that hold back water, such as cofferdams and bulkheads, are sometimes also considered retaining walls. Retaining walls are generally made of masonry, stone, brick, concrete, vinyl, steel, or timber. Once popular as an inexpensive retaining material, railroad ties have fallen out of favor due to environmental concerns. Retaining walls are often used as a barrier on a beach that stops the earth behind the sand from eroding and collapsing.

The most important consideration in proper design and installation of retaining walls is that the retained material is attempting to move forward and down slope due to gravity. This creates a lateral earth pressure behind the wall, which depends on the angle of internal friction (phi) and the cohesive strength of the retained material, as well as the direction and magnitude of the movement the retaining structure undergoes. Lateral earth pressures are typically smallest at the top of the wall and increase toward the bottom. Earth pressures will push the wall forward or overturn it if the pressure is not properly addressed. Also, any groundwater behind the wall that is not dissipated by a drainage system causes an additional horizontal hydrostatic pressure on the walls.

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