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Typically retaining walls are cantilevered from a footing extending up beyond the grade on one side and retaining a higher level grade on the opposite side. The walls must resist the lateral pressures generated by loose soils or, in some cases, water pressures.

The most important consideration in proper design and installation of retaining walls is to recognize and counteract the fact that the retained material is attempting to move forward and downslope due to gravity. This creates lateral pressurebehind the wall which depends on the angle of internal friction  and the cohesive strength of the retained material, as well as the direction and magnitude of 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 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 wall.

It is very important to have proper drainage behind the wall as it is critical to the performance of retaining walls. Drainage materials will reduce or eliminate the hydrostatic pressure and will therefore greatly improve the stability of the material behind the wall, assuming that this is not a retaining wall for water.

J. S. Outdoors Lawn & Landscaping (314) 869-8588
Retaining Walls

Retaining walls have long been a fundamental element in commercial and residential construction. And there’s no wonder why. A landscape retaining wall can transform a generic backyard into an elegant courtyard. A structural retaining wall adds strength and appeal to any commercial design.

J S Outdoors offers retaining wall construction for the developer, the homebuilder and the homeowner – and we do it by providing dependable service at affordable prices with beautiful results


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