Self Drilling Anchor System
T76N - 76mm Anchor Bolt
Made of #45 Steel
Descriprion:
The self-drilling hollow bar anchor system consists of a hollow
threaded bar with an attached drill bit that can perform drilling,
anchoring and grouting in a single operation. The hollow bar allows
air and water to freely pass through the bar during drilling to
remove debris and then allow grout to be injected immediately after
drilling is completed. Grout fills the hollow bar and completely
covers the entire bolt. Couplings can be used to join hollow bars
and extend the bolt length while nuts and plates are used to
provide the required tension.
Self-drilling hollow bar anchor system is the most common used
system for rock mass stabilization, especially in tunneling,
underground mining and ground engineering industry. It is mainly
used for the supporting engineering in the loose and broken rock
stratal with difficult to drilling hole. It provides the optimal
solution for soil nailing, lock bolting, micro-piling.
Self-drilling hollow bar anchor system fulfills current and
increasing demands of the tunneling, mining industry and ground
engineering for safer and faster production. The system provides
advantages for all areas of its applications, where boreholes would
require the time consuming drilling with casing systems in
unconsolidated or cohesive soil.
Applications:
- Slope stabilization:
Self-Drilling Anchors are used to stabilize unstable rock/soil
formations. The unconsolidated or weathered ground conditions favor
the SDA technique for a fast and simple method of installation
compared to the traditional methods.
- Foundations with micropiles:
SDA micropiles can be defined as drilled piles, composed of
injected grout with the anchor rod as steel reinforcement. They can
be installed in sites with limited space using light drilling
equipment, can be installed into most ground conditions including
rock and are suitable for tension and compression loads. The big
advantage is the combined drilling and grouting making high piling
outputs possible.
- Tunneling:
Self drilling anchors are the most economical solution for the
reinforcement of the tunnel circumference and advanced roof support
for tunnel excavation in overburdened and soft fractured rock
conditions.
Components of the Self-Drilling Anchor:
 | - Hex Nut
- Termination Plate for new construction or bracket for underpinning
- HDPE Pipe for unbonded length or additional corrosion protection
- Soil Cement Grout Body
- Final Injection Grout
- Magnacore Self-Drilling Anchor Bar allows injection while serving as drill strong
- Coupler
- Centralizer to keep the micropile centered in the hole to allow for optimal
grout cover
- Sacrificial Bit
- Grout Flushing Holes
|
Package: Carton or Wooden Box; also we can follow customers' requirements.
Delivery time is around 15-25 days.
MIROC® Production:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Coupling Sleeves
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Elisa (Елизавета)
