Tieback Anchoring Systems

Tiebacks (otherwise known as tie backs) are used to secure retaining walls or to secure shoring of excavations. Among oher applications.

How Tiebacks For A Retaining Wall Work…

(explanation and terms correlates with diagram below)

The Helical lead section of the tie back anchor can be equipped with one or more helical bearing plates ranging from 6" to 16" diameters. Plates are welded onto a steel shaft, each one acting as a separate anchor for maximum holding capacity. The lead section is followed by extension rods as it is drilled through the no load zone directly behind the wall and into the load zone.

Once the desired capacity is reached, there are a number of types or terminations that can be used to attach the structure to the back.

The most common is a threaded rod, which has standard 1-1/4" machine thread and is available on 20" or 48" overall lengths. The thread rod is attached to the last extension rod and a bolted steel plate is installed to the other side of the structure. (see diagram below)

 Advantages of tiebacks include:

• Tiebacks screw anchors are quick to install.
• There is no soil removal necessary.
• Elimination of grout allows for immediate loading or testing
• In some cases the screw achnors can be removed and reused.

 Materials for Tiebacks

Thread Bar Adapter	Extension	Helical Lead
Steel Plate	Tread Rod (20in or 48in)