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Anchor increasing grouting anchor rod device with adjustable length

A technology of grouting bolts and anchor heads, which is applied in the installation of bolts, sheet pile walls, mining equipment, etc. The effect of utilization

Pending Publication Date: 2020-01-07
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the length of the anchor rod in the prior art is fixed, and the length of the anchor rod cannot be adjusted according to specific requirements, the present invention provides a new anchor grouting anchor rod with adjustable length, which realizes the adjustable length of the anchor rod. Control for improved ease of use

Method used

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  • Anchor increasing grouting anchor rod device with adjustable length
  • Anchor increasing grouting anchor rod device with adjustable length
  • Anchor increasing grouting anchor rod device with adjustable length

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0036] see Figure 1-7 , a length-adjustable anchor grouting bolt device, comprising a tail anchor head 3, a backing plate 4 and several hollow-structured grouting bolts.

[0037] Several hollow grouting anchors are connected end to end, the tail anchor head 3 is arranged at the end of the first grouting anchor, and the backing plate 4 is sleeved at the end of the last grouting anchor.

[0038] The grouting anchor includes a main grouting anchor 1 and a plurality of auxiliary grouting anchors 2, and the plurality of auxiliary grouting anchors 2 are connected end to end, and the tail anchor head 3 is arranged at the end of the main grouting anchor 1, and the backing plate 4 is arranged at the end of the auxiliary grouting anchor rod 2 at the end.

[0039] Two adjacent grouting bolts are...

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Abstract

The invention discloses an anchor increasing grouting anchor rod device with the adjustable length. A hollow connecting part is adopted for connecting two grouting anchor rods, a plurality of groutinganchor rods can be selected for assembling according to the specific requirement for the grouting depth, the overall length of the device can be adjusted, meanwhile, a tail anchor head is installed on the end portion of the first section of the grouting anchor rod, the tail anchor head is in detachable thread connection, installing is facilitated, after the drill holes are collapsed, a proper number of grouting anchor rods only need to be connected according to the depth of the collapsed drill holes, the problem that for existing anchor rods with the fixed length, due to depth change of the drill holes, surplus anchor rods need to be sawn off, the utilization rate of the anchor rods is increased, and the material waste is reduced.

Description

technical field [0001] The invention relates to the field of grouting anchor rods, in particular to an adjustable-length anchor increasing grouting anchor rod device. Background technique [0002] Grouting bolt is a new product developed according to the actual needs of tunnel engineering, slope treatment engineering, and coal mine roadway engineering in my country. The anchor body of the grouting anchor adopts a hollow design, and the middle hole of the rod body is used as the drilling high-pressure air-water channel and the grouting channel. Compared with the solid rod body, the hollow rod body design can obtain better rigidity and shear strength. In recent years, bolt grouting reinforcement technology has been widely used in geotechnical engineering such as mines and tunnels with broken surrounding rocks. The supporting effect is good and the economic benefits are significant. In the process of underground engineering, mine roadway, foundation pit and slope engineering i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E21D20/02E02D5/74
CPCE02D5/74E21D20/02E21D21/0046E21D21/0093
Inventor 田威程续张丽肖煜强侯英杰
Owner CHANGAN UNIV
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