The stratum of Macedonia KO Highway was very complicated with extremely loose and collapsed rock foundation. Solid steel bar can’t support post-reinforcement construction.
Under such circumstances, China Hydropower Engineering Bureau was decided to use SupAnchor Self Drilling Hollow Anchor System which is combined by drilling, grouting and anchoring in one. By using SupAnchor system, the difficult stratus was overcome.

SupAnchor's self drilling anchor system addresses complex geotechnical challenges in tunneling and slope stabilization, boosting efficiency and safety in global infrastructure.
SupAnchor introduces the patented GFRP friction bolt, offering corrosion resistance, safety, and lightweight benefits for underground engineering and mining applications.
SupAnchor's self drilling anchor bolts provide robust geotechnical reinforcement in a challenging Alpine tunnel, addressing unstable geology and improving infrastructure safety and efficiency.
SupAnchor introduces the SupCT Bolt System, offering high ductility and permanent corrosion resistance for rock support in tunneling and mining. Features include duplex protection and factory preassembly.
SupAnchor's self-drilling anchor bolts provide reliable ground stabilization in challenging geotechnical projects, improving safety and efficiency for European infrastructure development.