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Compressible base plate device and anchor cable anchorage method by device

An anchoring method and compressibility technology, which are used in the installation of anchor rods, earthwork drilling, structural elements, etc., to achieve the effect of high strength, not easy to be crushed, and easy to obtain materials

Inactive Publication Date: 2013-08-14
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides a compressible backing plate device that can effectively deal with the large deformation and high stress problems faced by deep mine roadway support and an anchor cable anchoring method using the device

Method used

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  • Compressible base plate device and anchor cable anchorage method by device
  • Compressible base plate device and anchor cable anchorage method by device

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Embodiment Construction

[0016] Attached below figure 1 and 2 And the specific examples illustrate the present invention in detail.

[0017] figure 1 It is the structural diagram of the compressible pad device. As shown in the figure: a compressible backing plate device includes an inner backing plate 1, an outer backing plate 2 and a U-shaped steel 3; the convex surface of the U-shaped steel 3 corresponds to the outer backing plate 2, and the foot corresponds to the inner backing plate 1; A circular through-hole 6 is opened at the center of the inner backing plate 1, a circular through-hole 7 is opened at the center of the outer backing plate 2, and a circular through-hole 8 is opened at the center of the U-shaped steel 3; the U-shaped steel 3 can produce plasticity out of shape. Wherein the outer backing plate 2 is made of a steel plate with a size of 150mm×150mm×10mm, and the inner backing plate 1 is made of a steel plate with a size of 350mm×350mm×10mm.

[0018] figure 2 A schematic diagram...

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Abstract

The invention discloses a compressible base plate device and an anchor cable anchorage method by the device. The compressible base plate device comprises an inner base plate (1), an outer base plate (2) and U-shaped steel (3), the centers of the inner base plate, the outer base plate and the U-shaped steel are provided with through holes, a convex surface of the U-shaped steel (3) corresponds to the outer base plate (2), the bottom of the U-shaped steel corresponds to the inner base plate (1), and the U-shaped steel (3) can generate plastic deformation. The anchor cable anchorage method by the device includes the steps: drilling a hole inside surrounding rock; placing an anchoring agent cartridge at the bottom end of the drilled hole and placing an anchor cable (4) into the drilled hole; and mounting the compressible base plate device at a projecting end of the anchor cable (4), locking a lock (5) by the aid of an anchoring pre-tightening jack and applying a certain pre-stress. The compressible base plate device is simple in structure, mounting and matching of other devices are omitted when the device is used, the supported surrounding rock can generate a certain deformation when the device is used, and the device overcomes the shortcoming that a surrounding rock supported by a traditional anchorage method cannot generate controllable deformation to release a certain stress.

Description

technical field [0001] The invention relates to the field of engineering tools for mine roadways, in particular to a plastic backing plate device for realizing compression deformation in the anchoring support of high-stress and large-deformation roadways and a method for anchoring anchor cables. Background technique [0002] The anchor cable is a prestressed steel strand that is fixed on the surface of the roadway through the outer end, and the other end is fixed in the deep rock mass of the surrounding rock of the roadway and passes through the slip surface. The backing plate is a metal plate that is close to the surface of the roadway, and has a round hole on it for the anchor cable to pass through. [0003] At present, in the construction of prestressed anchor cable support, after the anchor cable is put into the drill hole, the protruding end of the anchor cable is covered with a backing plate to be close to the surface of the roadway, and then a certain prestress is app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E04C5/12
Inventor 王卫军余伟健郭罡业王东洋陈旭
Owner HUNAN UNIV OF SCI & TECH
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