Integral interlocking type anchoring cartridge inernally provided with central shaft and using method

Abstract

The invention relates to an integral interlocking type anchoring cartridge internally provided with a central shaft and a using method. The anchoring cartridge comprises an anchoring cartridge body, acentral shaft screw, a stabilizer pull rope, a stablizer rest, a washer, a nut, a guide cap, a resistance increasing head, a butt-joint nut and a transition nut, wherein the central shaft screw penetrates into the center of the anchoring cartridge body, and the two ends of the central shaft screw penetrate through the anchoring cartridge body to be provided with threads respectively; the middle of the central shaft screw is in threaded connection with the stablizer rest, the stablizer rest is provided with at least three redical stabilizer fins, and clamping grooves are formed in the edges ofthe stabilizer fins; the protions, in the anchoring cartridge body, of the two ends of the central shaft screw are provided with stabilizer pull rope connecting pieces respectively; the two ends of the stabilizer pull rope are connected with the central shaft screw through the stabilizer pull rope connecting pieces and tensioned, and the middle of the stabilizer pull rope is tensioned and supported through the stablizer rest; and the central shaft screws of every two ajacent anchoring cartridges are connected through the butt-joint nut; the end portion, at the bottom end of a drilling hole, of the central shaft screw is provided with a resistance increasing head and the guide cap. The end portion, at the outermost end of the drilling hole is provided with the transition nut used for beingconnected with an anchor cable.

Description

technical field [0001] The invention belongs to the field of surrounding rock support such as mining engineering and tunnel engineering, and relates to an integral interlocking anchoring agent with a built-in central axis and a use method thereof, which are suitable for use when surrounding rock is supported by bolts, cables, etc. Complex drilling in fractured or detached layers and deep drilling in high ground stress conditions. Background technique [0002] As the mining depth of coal resources increases, the high ground stress environment and complex geological conditions in the deep make it more and more difficult to control the surrounding rock. Bolts and cable supports with high strength, high rigidity and high preload are the key to control One of the most important means of deformation and destruction of surrounding rock during deep mining, especially the anchor cable support has a large depth, high strength, convenient transportation, quick use and good effect. The ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the anchor cable and the anchoring agent are difficult to achieve high-efficiency fast synchronous installation and the anchoring effect cannot be guaranteed, and to solve the problem that the anchoring agent is easy to shear under drilling conditions such as complex drilling cracks, separated layers, weakness, and water content. In order to solve the problems of shear failure and slipping failure between the anchoring agent and the borehole, a built-in central axis integral interlocking anchoring agent and its use method are provided, which can effectively realize the simultaneous and efficient installation of the anchor cable and the anchoring agent, and significantly solve the problem of anchoring agent under difficult conditions. The problem of fast and high efficiency and the problem that the anchoring agent is easy to slip and shear failure

Images