Views: 0 Author: Site Editor Publish Time: 2024-07-17 Origin: Site
Self-Drilling Anchors (SDAs) are hollow rockbolts which serve
as both the drill string during drilling of a support hole, and as
the support tendon once grouted into place. A single use drill bit,
selected to suit the ground condition, is fitted to the leading end
of the SDA with a plate and nut fitted on the trailing end. Couplers
can be used to combine SDA sections for longer support depth.
• Suitable for quasi-static ground conditions
• Self-drilling
• Can be coupled for extension drilling
• Efficient support cycle
• Mechanized rockbolting
