An integrated structure of anchor rod tray and slurry stopper

Abstract

The invention relates to the technical field of anchor rod supporting, and discloses an integrated structure of an anchor rod tray and a grout stopping plug. The integrated structure comprises an anchor rod piece, an alloy drill bit, the anchor rod tray, the grout stopping plug and a nut, wherein the alloy drill bit is fixedly connected to one end of the anchor rod piece, and the grout stopping plug, the anchor rod tray and the nut movably sleeve the other end of the anchor rod piece; the nut is in threaded connection with the anchor rod piece, a groove is formed in the outer wall of the groutstopping plug, and a telescopic rod is arranged in the groove. According to the structure, the telescopic rod and a top plate are arranged, so that the anchor rod tray and the grout stopping plug areassembled into an integrated mechanism; the telescopic rod is used for being in tight contact with the inlet edge of a surrounding rock drilled hole, so that when the nut tightly presss against the anchor rod tray and the grout stopping plug, the telescopic rod directly bears the tight pressing contact with the rock wall, and the grout stopping plug is pressed from two ends by the anchor rod trayand the top plate; compared with the prior art, the mode that the grout stopping plug is pressed is improved, so that the deformation is more reasonable when the grout stopping plug is in contact with the rock wall, and the long-acting use of the grout stopping plug is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of bolt support, in particular to an integrated structure of a bolt tray and a grout stopper. Background technique [0002] The most widely used technology in geotechnical anchoring engineering is bolting technology. However, no matter whether the bolt support technology is used for temporary support or permanent support, the bolt will always be permanently buried in the soil layer after construction, which not only causes waste of resources, pollutes underground space, but also creates a problem for the local development. Building other projects brings the hassle of foundation construction. The above problems have not been solved, and retrievable bolt technologies have been proposed at home and abroad, including mechanical retrievable bolts, self-rotating retrievable bolts, mechanical retrievable bolts, recyclable inflatable bolts, expanding head ( Capsule) anchor and chemical retrievable anchor and so on...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the use process of the existing spin-type recoverable bolt proposed in the background technology, the present invention provides an integrated structure of the bolt tray and the grout stopper, which has the secondary structure of the grout stopper and the grout stopper. The advantage of improving the utilization rate solves the problem that the grout stopper becomes a vulnerable part due to the direct contact between the grout stopper and the surrounding rock wall due to the bearing deformation proposed in the above background technology, which is not conducive to the simultaneous secondary utilization of the anchor rod parts.

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