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.

A recent construction project utilized SupAnchor's self-drilling anchor bolts to stabilize loose soils and rock, showcasing advanced geotechnical reinforcement solutions for demanding civil engineering works.
SupAnchor unveils a corrosion-resistant GFRP solid bolt with up to 500kN tensile strength for slope stabilization, tunneling, and mining. Lightweight, non-conductive, and maintenance-free solution.
Innovative self-drilling anchor system by SupAnchor overcomes difficult geology in a vital infrastructure project, enhancing safety and efficiency.
In a challenging highway expansion project through unstable terrain, engineers deployed SupAnchor's innovative self-drilling anchor system to ensure long-term slope stability and traffic safety.
SupAnchor launches the SupCT Bolt System, a combination bolt with duplex corrosion protection, offered in steel and GFRP variants, delivering high load capacity and up to 150-year service life for demanding tunneling, mining, and slope projects.