Ground anchors transfer tensile loads and consist of an anchor head, a free length and a bond length. Anchors can offer an advantage for basements and large excavations by minimising horizontal deflections.

Keller rig installing micropiles

Common uses

Excavation support
Temporary or permanent slope stabilisation
Tie down applications for permanent structures

Process

A stable borehole is executed to the right diameter and designed length, filled with cement grout and then the anchor (strand or bar with free and bond length) installed. Post grouting can be done after a few hours if necessary. The anchor head is then installed and stressing completed.

Advantages

Pre-stressing reduces movement of support structures
Can be executed in any type of soil
Can reduces pile diameter of retaining walls or system

Quality assurance

Keller has been installing anchors for many years, continually evolving the technique to achieve better performance. Testing and monitoring ensures high quality execution.