Retaining wall#Cantilevered

A cantilever retaining wall (commonly used but technically incorrect and cantilever wall ) is a structure for supporting and securing terrain jumps that - mostly due to lack of space - can not be secured by a bank.

Cantilever retaining walls are made ​​of reinforced concrete. The supporting wall is usually cast at the building site in a casing. A smaller variant L-blocks, which are used as precast concrete, especially in gardening and landscaping applications.

Construction and structural behavior

The simplest design of a cantilever retaining wall is outlined in the chart on the right. The structure consists of an underlying foundation plate (also called Lost and Found spur ) and the actual wall, which usually is perpendicular to the air side. The ground side is often slightly inclined ( ≈ 6:1 to 12:1 ), so that the wall thickness increases toward the low end. In order to meet special requirements, the design, for example, by introducing another small "Inspire " be changed to the earth side of the wall. High loads can be better removed by Aussteiffungsrippen between wall and foundation erdseitigem spur for example.

All parts of a cantilever retaining wall are made of reinforced concrete and are rigidly connected to each other. Unlike a gravity wall is a retaining wall angle is distinguished by their lighter weight. Since less concrete is needed also decrease the cost of materials. When supporting a terrain jump or an embankment but the building by the burdens weighing on foundation spur floor still looks like a gravity wall. Another advantage is the relatively large footprint of the foundation spur, which cantilever retaining walls can be built on less bearing capacity building. A disadvantage is the relatively large pit and the associated large excavation, arises when building the foundation spur.