Anchor

 

Anchors are advanced reinforcement device used in integration

Anchors are  advanced reinforcement device used in integration of passive systems to counteract higher loads. The Anchors  transfer tensile load to the ground to take of stresses generated due to loss of effective stress. In Geotechnical engineering it is termed as “Prestressed Post tensioned Grouted Ground Anchors”.  The ground anchors can be made by using Wire or cable Anchors / High grade steel Bars.

The total length of Bar/ Wire strand is differentiated  into free length and Fixed length. Anchor depths could be varied for getting end anchorage  high rated capacity drilling rigs are used it can do precise, stabilized drilling, dry as well wet.

Anchors are classified on the  basis of grouting technique, comprising attributes like.

1. Grout pressures
2. Primary and secondary grout induce time
3. ground condition

The gravity is employed in the fixed length zone & divisible  into 4 categories.

1. Straight Shafted Gravity Grout flow
2. Pressure Grout
3. Post Grouted
4. Under reamed grouting

Applications:

1. Slope stabilization
2. Retaining system rehabilitation
3. Uplift systems
4. Deep Excavations
5. Tie down system
6. Stitching of parallel tunnels

Advantage:

1. Control instability of slopes
2. Suitable for all geological environments
3. Deformations are minimized
4. Higher Load capacities
5. Can be designed for temporary system and  be retrieved after work completion
6. Suitable for all kind of facing systems
7. Control risk of seismic load