KGN

Introduction to
Prestress Rock Anchor

Prestress rock anchors are high-strength steel tendons
installed in rock or soil to provide stability and support for
structures. These anchors are tensioned after installation
to resist uplift, sliding, and overturning forces. Commonly
used in retaining walls, dams, and foundation systems,
prestress rock anchors ensure secure and long-term
ground reinforcement in challenging conditions.

Key Characteristics of Prestress
Rock Anchoring:

High Strength & Crack Resistance:

Enhances structural durability by compressing concrete, reducing cracks.

Better Stress Distribution:

The applied force is distributed across the entire bonded length, reducing stress concentration points.

Superior Corrosion Protection:

Grouted tendons prevent moisture infiltration, extending the structure’s lifespan.

Design & Engineering of
Prestress Rock Anchors

The prestress rock anchoring process follows a precise sequence to ensure structural stability and
durability. High-strength steel tendons are installed in drilled boreholes, tensioned, and bonded to the
surrounding rock. This method enhances load-bearing capacity, prevents structural displacement, and
provides long-term resistance against environmental forces.

Boreholes are carefully drilled to the required depth based on anchor design specifications.

High-strength steel tendons are securely inserted into the drilled hole for stability and support.

The borehole is completely filled with grout to bond the anchor securely to the rock.

Hydraulic jacks precisely apply controlled tension to the tendons for enhanced structural strength.

Anchors are firmly secured, and a detailed inspection verifies performance and durability.

Design & Engineering of
Prestress Rock Anchors

Boreholes are carefully drilled to the required depth based on anchor design specifications.

High-strength steel tendons are securely inserted into the drilled hole for stability and support.

The borehole is completely filled with grout to bond the anchor securely to the rock.

Hydraulic jacks precisely apply controlled tension to the tendons for enhanced structural strength.

Anchors are firmly secured, and a detailed inspection verifies performance and durability.

Advantages of Prestress
Rock Anchors

Prestress rock anchors provide a reliable and efficient
solution for stabilizing structures in challenging terrains.
By applying controlled tension to high-strength steel
tendons, they enhance structural stability, prevent
displacement, and improve overall load-bearing
capacity for long-term durability.

Applications of Prestress
Rock Anchors

Retaining Walls & Earth
Support Systems

Bridge Abutments &
Foundations

Slope Stabilization in
Hilly Terrain

Tunnels, and
Underground Structures