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Ground Anchors are structural elements where a grout body is produced in the subsoil by injecting grouting mortar around the rear part of the steel tendon. The grout body is connected by way of the steel tendon and the anchor head to the structure, or the rock section to be anchored.
Any load to be taken up by the grouted anchor is passed into the subsoil, not over the entire length of the anchor, but only in the area of grout body.
The steel tendon section, where the anchor is free to expand, is the free tendon length. It acts like a spring which can be pre-tensioned to the structure against the subsoil.
Grouted anchors are subjected to tension only. Their load capacity is checked by tensioning.