Self-Drilling Rock Bolt

Drilling, Grouting, Anchoring, in One!

GEOTECSteel Self-Drilling Rock Bolt is a rock-bolting system based on a fully coarse threaded hollow bar.

It is especially recommended for the following applications :

  • Roof and wall bolting.
  • All ground conditions. GEOTEC Self Drilling Rock Bolts do not require to pre-drill a hole, therefore making it usable even in soft rock conditions.
  • Installation with grout. The hollow steel anchor rod also acts as a grouting pipe to ease set up. For non-grouting applications, please refer to Mechanical Anchor or Expandable Friction bolt.
  • Temporary or permanent applications. With optional epoxy coating available for permanent applications.

Product Features

  • 3 in 1 concept: acts as a drilling rod, as well as an anchor bar and a grouting pipe.
  • Splicing system available to achieve longer tendon length.
  • Available in diameters fromo 25 to 76 for Ultimate Load performances up to 1,600 kN.
  • 2 types of threads profile available: R (Rope Thread) or T (trapezoidal).
  • For permanent applications, optional epoxy coating can be provided to protect from corrosion.
  • No cased borehole allowing ground preservation
  • Designed as per BS EN 1997-1; BS EN 1537 and BS 7861-1.