Composite anchor structure

Abstract

The invention discloses a composite anchor bolt structure which comprises a bolt body, wherein a fiber-reinforced plastic bushing coats the outer side of the bolt body and is connected with the bolt body in a sliding way; an anchoring fastener, a twist resisting casing pipe and a metal wire pipe are respectively arranged between the fiber-reinforced plastic bushing and the bolt body; the top and the bottom of the anchoring fastener are respectively arranged by penetrating through the fiber-reinforced plastic bushing; the anchoring fastener is respectively connected with the fiber-reinforced plastic bushing and the bolt body through anchor bolts; the twist resisting casing pipe adopts a convex structure and is connected with the inner side face of the fiber-reinforced plastic bushing in a sliding way; a metal wire is arranged in the metal wire pipe; the metal wire pipe is clamped on the fiber-reinforced plastic bushing; a supporting member is arranged at a position, close one end part, of the rod body and adopts a triangular structure; a jagged member is connected to one end part, positioned on one side face of the supporting member, of the bolt body. The composite anchor bolt structure can better control and adapt to anchoring objects and has the advantages of good supporting property, high shear-bearing capacity, good corrosion resistance, convenience for assembly and disassembly and convenience for moving.

Description

technical field [0001] The invention relates to an anchor rod structure, in particular to a composite anchor rod structure. Background technique [0002] With the increase of mining depth and mining intensity in coal mines, the support on both sides of the coal mining face and on both sides of the cut hole is also becoming more and more complicated. If the conventional bolt support with high strength is adopted, during the mining process of the working face, sparks are likely to be generated when the shearer cuts the bolts on both sides of the side road of the coal mining face and the bolts on both sides of the cut hole, causing great damage to the construction personnel. At the same time, after the shearer is cut, the relevant roadway bolts need to be processed, which greatly affects the smooth advancement of the working face. And anchors are generally divided into metal anchors and non-metallic anchors. The advantages of non-metallic anchors are corrosion resistance and e...

AI Technical Summary

Problems solved by technology

If the conventional bolt support with high strength is adopted, during the mining process of the working face, sparks are likely to be generated when the shearer cuts the bolts on both sides of the side road of the coal mining face and the bolts on both sides of the cut hole, causing great damage to the construction personnel. At the same time, after the shearer is cut, the relevant roadway bolts need to be processed, which greatly affects the smooth advancement of the working face.

And anchors are generally divided into metal anchors and non-metallic anchors. The advantages of non-metallic anchors are corrosion resistance and easy cutting, but the torque of the rod body is low and the bearing capacity of the tail thread is small, which cannot meet the needs of use to a certain extent.

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