A hot-melt self-unloading anchor head for retrieving anchor cables

Abstract

The invention relates to a hot-melting self-assembly anchor head for collecting anchor cables and belongs to the technical field of rock engineering anchor cable fixing devices. The hot-melting self-assembly anchor head for collecting the anchor cables comprises an outer anchor body, an inner post and clamping pieces, wherein the outer anchor body is provided with at least one half anchor hole; the inner anchor post is provided with at least one half anchor hole; the inner anchor post is mounted inside the outer anchor body; the half anchor hole of the outer anchor body and the corresponding half anchor hole of the inner anchor post form an anchor hole; the inner anchor post is made of low-melting-point materials, the inside of the inner anchor post is provided with an electric heating device for capable of melting the low-melting-point materials, and the melting point of the low-melting-point materials is 100-120 DEG C; the clamping pieces are mounted inside the anchor hole; stranded steel wires penetrate the clamping pieces, and when the stranded steel wires are tracted, friction force provides the tension locking force of the clamping pieces, and the clamping pieces extrude the inner anchor post to achieve automatic locking. When collecting prestressed anchor cables, a worker can heat the inner anchor post, the electric heating device releases heat to melt the inner anchor post and further the clamping pieces can be expanded, friction force between the stranded steel wires and the clamping pieces disappears, so that the stranded steel wires can be collected conveniently and easily.

Description

technical field [0001] The invention belongs to the technical field of anchor cable fixing devices in geotechnical engineering, and in particular relates to a hot-melt self-unloading anchor head for recovering anchor cables. Background technique [0002] The current urbanization is accelerating, the development of urban underground space is getting more and more attention, and the foundation pits for super high-rise building construction are getting deeper and deeper. The application of prestressed anchorage technology is increasing, and the amount of steel, steel strands, etc., which are the main stress components, is also increasing, and its use effect is also good. [0003] Prestressed anchorage is a measure to increase the stability of retaining structure or rock and soil mass by anchorage method. The method is to drill a hole through the sliding surface that may slide or has already slipped, fix one end of the steel bar (or steel cable) in the stable rock and soil mass...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a hot-melt self-unloading anchor head for recycling anchor cables. The technical problem to be solved is that the traditional prestressed anchor cables are used for one time, which not only causes waste of materials, but also increases the Space development barriers increase construction difficulty

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