POST STRESSED ANCHORS
Post stressed anchors are frequently used as tie backs to provide lateral support to deep excavations, unstable slopes or similar. They are often used in conjunction with sheet piles, steel or concrete soldier piles or Diaphragm walls.
Anchors may also be used to resist uplift forces in high structures such as towers, pipe trestles and lighting masts.
- Post stressing limits adjacent ground movements
- Suitable for most soil and rock types
- Usually the only procedure that can stabilise deep-seated failures
- High stabilising forces can be mobilised with multiple anchor systems
- Provides an unobstructed area for basement construction
Threaded bar, both solid and hollow injectable, or strand can be used as the anchor tendon.
Anchors can be used for temporary or permanent applications. In general terms a temporary anchor will require little or no corrosion protection whereas specific attention will have to be paid to corrosion protection for permanent anchors.