Anchors transfer tension loads, using high-strength steel bars or steel strand tendons. Keller designs and constructs anchors as a stand-alone technique or as a part of a turn key earth retention or tiedown solution.
- Tiebacks to laterally support retaining walls
- Tiedowns to resist uplift forces
A full-length hole is drilled through the soil and into the bond zone in soil or rock, using casing if necessary. Thread bar or strand tendon is inserted into the hole and the hole is filled with high-strength grout. Any casing used is then extracted. Bond breaker covers the length of bar or strand above the bond zone to eliminate load transfer there. Then, the anchor head is generally tensioned and connected to the structure requiring the support.