Complete grouted anchor cable

Abstract

The invention relates to the technical field of supporting of geotechnical engineering and discloses a complete grouted anchor cable. The complete grouted anchor cable comprises a check valve, a cone-shaped joint, a grouting quick coupling assembly, a hollow anchor cable, a tensioning sleeve, an anchoring plate, a pressure pipe, a seal cover, a sealing pressing sleeve, a grouting pressing sleeve and a stirring head. The cone-shaped joint is movably mounted on the left side of the check valve, the grouting quick coupling assembly is movably mounted on the left side of the cone-shaped joint, a clamping device is movably mounted on the left side of the grouting quick coupling assembly, the hollow anchor cable is movably mounted in the clamping device, the hollow anchor cable comprises a center pipe and a steel wire, the steel wire winds the outer wall of the center pipe spirally, and the tensioning sleeve is connected to the left side of the clamping device on the outer wall of the hollowanchor cable in a sleeving manner. By drilling a rock stratum to be provided with the anchor cable and inserting an anchoring agent, the grouting anchor cable is mounted. By grouting directly throughthe center pipe of the hollow anchor rope, an effect of simple, convenient and quick construction is achieved.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering support, in particular to a complete set of grouting anchor cables. Background technique [0002] With the increase of coal mine mining depth, the difficulty of roadway support and repair in the coal mine production process is also increasing. Grouting has become an effective means and method to solve the current support problems. Grouting hollow anchor cables are mainly used in coal mines. Roadway support, well roadway support and other surrounding rock support, etc., first insert the anchor cable into the drilled hole in the rock formation, use anchoring agent to anchor the front part of the cable body and the rock mass, and then use a tensioning force at the end of the anchor cable After the equipment is stretched, the anchor slurry is injected into the gap between the anchor cable and the hole through the central tube of the anchor cable. After solidification, the anchor cable...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a complete set of grouting anchor cables, which has the advantages of being easy to use, and solves the problem that traditional grouting anchor cables generally adopt a solid anchor cable structure, which brings great difficulty to support construction. , the labor cost is high, the labor intensity is high, and in addition, there is still a phenomenon of slurry leakage in the support technology, which leads to uneven anchoring of the anchor cable and the rock formation hole, which fails to meet the support requirements and leads to the scrapping of the anchor cable, causing safety hazards and huge economic losses The problem

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