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The principle of self-drilling anchoring systems is characterised by a hollow bar with a coarse thread along its entire length. This bar acts as a drilling and injection bar during the installation and as a tendon, compression and reinforcement element in the final phase. The system is designed in a project-specific manner using a standard element length.

During installation a bond is created between the grout body and the surrounding soil layers. This creates a foundation element, which can provide bearing capacity against tensile, compression and cyclical loads.

Self-drilling anchoring systems have already been used successfully on an international scale for many decades.