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Rock Anchors
Rock anchors resist forces by means
of corrosion protected steel bars embedded into bedrock.
Geotechnical structures need
anchors to counteract
the uplift and other forces acting on foundations. The threaded bar
is bonded to the bedrock socket wall or virgin soil by
using high-strength grout (cement mixture).
After
the anchors are constructed, the free-lengths
are then post-tensioned, but bolts are
grouted the full length of the bar and cannot be post-tensioned.
Rock anchors and bolts
can have very high load capacities. Rembco has installed
many different sizes. The largest could
hold up to 1,000 kips.
Anchors:
Secure caisson bottom against uplift
Stabilize slopes and walls
Provide tiebacks for bridges
Increase stability of dams
Tension load tests
Bolts:
Secure surfaces in mines
Holds buildings against lift
Stabilization of steep slopes
Bases for guy line toggles |