The common grouted rock bolt is a type of anchor bolt with a full threaded steel pipe as the rod body, and anchoring materials are filled in the anchor holes and inside the anchor pipe.Grouted rock anchors belongs to passive reinforcement, allowing the reinforced structure to have appropriate deformation. Gouted rock anchors has been successfully applied in geotechnical anchoring projects such as tunnel construction, slope treatment, foundation pit wall protection, and mining, achieving good economic benefits.
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