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Dragongrip™ GFRP Self-drilling Hollow Rock Bolt (GFRP Self-drilling Hollow Anchor,GFRP Self-drilling Hollow Bar,GRP Rock and Soil Nail, GFRP Soil Nail) is a good alternative product compared with steel products when used in geotechnical engineering projects. The GFRP Self-drilling Hollow Rock Bolt is manufactured by the pultrusion process technology and special mechanical production methods with high-quality raw materials of glassfiber reinforced and epoxy resin according to different application environments.
Compared with traditional metal products, GFRP Self-drilling Hollow Rock Bolt can fast achieve the goal of fast drilling and installation through their unique function which integrates drilling, grouting, and anchoring as a whole. Meanwhile, the central hole allows flushing with water during drilling and the execution of anchor grouting.
The GFRP Self-drilling Hollow Rock Bolt can be widely used in soft rock or clay soil, the reinforcement of the tunnel face, or slope stabilization. Moreover, the character of cuttability can protect the machine's safety by avoiding obstructions while drifting or enlarging tunnels. Simultaneously, the total length of the bolt can expand and remain flexibility by couplings.
