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Deformation anchor cable capable of increasing resistance continuously

A technology of anchor cable and threaded connection, which is applied in the field of anchor cables, can solve problems such as damage accidents, unstable performance, failure of anchor cables, etc., and achieve the effects of increased work resistance, convenient operation, and simple structure

Inactive Publication Date: 2013-12-04
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the deformation of the surrounding rock is large and exceeds the range that the anchor cable can bear, it will lead to the failure of the anchor cable, and then cause the instability and destruction of the underground engineering.
The currently used anchor cables have small deformability, unstable performance, difficult processing, cannot adapt to the characteristics of large deformation, and cannot meet the support needs of modern underground engineering.

Method used

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  • Deformation anchor cable capable of increasing resistance continuously
  • Deformation anchor cable capable of increasing resistance continuously
  • Deformation anchor cable capable of increasing resistance continuously

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] combine Figure 1 to Figure 5 , a continuous resistance increasing deformation anchor cable, including a friction sleeve 1, a retractable member 2, a first fixed cable 3, a second fixed cable 4, a tray 5 and a nut 6.

[0028] The inner diameter of the above-mentioned friction sleeve gradually decreases from one end of the sleeve to the other end. Such as the selection of frustum-shaped or conical steel pipes. In addition to the conventional smooth surface structure, the inner and outer pipe walls of the above-mentioned friction sleeve can also adopt such a preferred method, that is, the inner pipe wall, or the inner pipe wall and the outer pipe wall are provided with circumferential ribs, Used to increase the coefficient of friction. A second fixed cable is arranged at the nozzle end with a large inner diameter of the above-mentioned friction sleeve, and the second fixed cable is connected to the nozzle end through the cable end 7; the above-mentioned cable end 7 and ...

Embodiment 2

[0032] combine Image 6 , a continuous resistance-increasing deformable anchor cable, comprising a friction sleeve 1 , a retractable member 2 , a first fixed cable 3 , a tray 5 and a nut 6 .

[0033] The inner diameter of the above-mentioned friction sleeve gradually decreases from one end of the sleeve to the other end. Such as the selection of frustum-shaped or conical steel pipes. In addition to the conventional smooth surface structure, the inner tube wall of the above-mentioned friction sleeve can also adopt such a preferred method, that is, the inner tube wall is provided with circumferential ribs to increase the coefficient of friction. A connecting rod 4 is arranged at the nozzle end with a large inner diameter of the above-mentioned friction sleeve, and the connecting rod is connected with the nozzle end through the sleeve end plug 7; the above-mentioned casing end plug and the nozzle end can be connected by threads.

[0034] The above-mentioned shrinkable member, t...

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Abstract

The invention discloses a deformation anchor cable capable of increasing resistance continuously, which is characterized by comprising a friction sleeve, a contractible member and a first fixing inhaul cable. The inner diameter of the friction sleeve decreases from one end of the sleeve to the other end of the sleeve gradually. The contractible member is of a tubular structure and nested in the friction sleeve, the outer diameter of the contractible member decreases from one end of the member to the other end of the member gradually, and the outer wall of the contractible member is contacted with the inner wall of the friction sleeve. One end of the first fixing inhaul cable is connected with the contractible member, and the first fixing inhaul cable is led out from one side at the pipe orifice end with smaller inner diameter of the friction sleeve. When large deformation occurs on surrounding rocks, the deformation anchor cable can be tensioned to stretch without being damaged, increase working resistance continuously and absorb deformation energy of the surrounding rocks constantly in the process. Furthermore, the deformation anchor cable capable of increasing the resistance continuously has the advantages of being simple in structure, easy to process, convenient to operate and the like.

Description

technical field [0001] The invention relates to an anchor cable in underground projects such as water conservancy and hydropower projects, tunnel engineering, and mining engineering, and in particular to a high-strength anchor cable with increasing resistance and continuous deformation that can produce continuous deformation without damage. Background technique [0002] In underground engineering such as water conservancy and hydropower engineering, tunnel engineering, and mining engineering, anchor cables are a kind of support equipment that is widely used. With the continuous increase of mining depth and the construction of large-scale underground engineering, the geological conditions are becoming more and more complex, and the surrounding rock often shows the characteristics of large deformation. When the deformation of the surrounding rock is large and exceeds the range that the anchor cable can bear, it will lead to the failure of the anchor cable, and then cause the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00
Inventor 王刚吴学震蒋宇静文志杰王春光陈连军
Owner SHANDONG UNIV OF SCI & TECH
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