Retractable teasel thorn type anchor cable suitable for weak soil and construction method

Abstract

The invention relates to a retractable teasel-thorn-type anchor cable suitable for weak soil and a construction method. The anchor cable comprises a grouting pipe located in a hollow steel pipe. Multiple steel strands wrap the periphery of the grouting pipe, the grouting pipe can move in a space wrapped by the steel strands in the axial direction of the grouting pipe, one end of each steel strandis fixedly connected with an anchoring part, the other end of each steel strand is connected with an anchor, anchoring segments of the steel strands are provided with multiple supporting rings, and the portions, where the supporting rings are located, of the steel strands are stretched out. The supporting rings are fixedly connected with the steel strands, so that the adjacent steel strands form gaps for slurry to flow out, multiple ring push discs sleeve the peripheries of the steel strands, multiple steel thorns are rotatably connected to the ring push discs, open holes matched with the steel thorns are formed in the pipe wall of the hollow steel pipe, and the push discs move in the axial direction of the hollow steel pipe to drive the steel thorns to extend out of the hollow steel pipethrough the open holes. The retractable teasel-thorn-type anchor cable increases the anchoring force and has a good anchoring effect.

Description

technical field [0001] The invention relates to the technical field of anchor cables, in particular to a telescopic burr-type anchor cable suitable for soft soil and a construction method. Background technique [0002] At present, anchoring and grouting support technology is widely used at home and abroad to strengthen soft soil areas. When the existing anchor cable technology is applied, in the anchor cable construction in soft soil areas, the anchor cable anchoring effect is often poor due to insufficient anchor force in the anchor section, or the grouting anchor cable grouting effect is not good, and the anchor cable and grouting The contact area between the grouts is too small, resulting in poor overall pull-out resistance of the anchor cable. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art and provide a telescopic burr-type anchor cable suitable for soft soil, which can effectively improve the ov...

AI Technical Summary

Problems solved by technology

When the existing anchor cable technology is applied, in the anchor cable construction in soft soil areas, the anchor cable anchoring effect is often poor due to insufficient anchor force in the anchor section, or the grouting anchor cable grouting effect is not good, and the anchor cable and grouting The contact area between the grouts is too small, resulting in poor overall pull-out resistance of the anchor cable

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