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Combined barb type anchor rod

A barb and bolt technology, which is used in the installation of bolts, construction, mining equipment, etc., can solve the problems of poor support effect and small friction, and achieve the effect of increasing relative resistance and improving support effect.

Inactive Publication Date: 2019-10-29
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the foundation pit support, the anchor rod is one of the commonly used support forms. The anchor rod is cheap and widely used. However, the anchor rod is generally a cylindrical steel bar. The friction between the steel bar and the soil Smaller, resulting in poorer support

Method used

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  • Combined barb type anchor rod
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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] The core of the present invention is to provide a combined barb bolt, which can increase the supporting effect of the bolt by increasing the resistance of the relative movement between the bolt and the soil.

[0023] Please refer to Figure 1 to Figure 3 , figure 1 A schematic diagram of the combined barb anchor provided by the present invention in use; figure 2 A schematic diagram of the combined barb anchor provided by the present invention before ...

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Abstract

The invention discloses a combined barb type anchor rod. The combined barb type anchor rod comprises an outer sleeve, wherein one end of the outer sleeve is used for being driven into the ground, theother end of the outer sleeve is inserted with an inner pull rod; a barb which can rotate relative to the inner pull rod is arranged on the side wall of the inner pull rod; a long hole which can enable the barb to extend out is formed in the side wall of the outer sleeve; and when the inner pull rod is pulled to enable the inner pull rod to axially move relative to the outer sleeve, the barb can extend out of the long hole. Therefore, the combined barb type anchor rod has the advantages that the barb which can rotate relative to the inner pull rod is arranged on the inner pull rod, the long hole which can enable the barb on the inner pull rod to extend out is arranged on the outer sleeve, and after the outer sleeve is driven into soil or placed into a pouring pool, the inner pull rod is pulled outwards relative to the outer sleeve, so that the barb on the inner pull rod extends out of the long hole in the outer sleeve, and the barb on the inner pull rod can be inserted into the soil orpoured concrete, and as a result, the relative resistance between the outer sleeve and the soil or concrete is increased, and the supporting effect of the anchor rod is improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a combined barb anchor. Background technique [0002] Anchor is the most basic component of roadway support. It strengthens the surrounding rock of the roadway together so that the surrounding rock can support itself. Now anchor rods are not only used in mines, but also in engineering technology for main body reinforcement of slopes, tunnels and dams. As a tensile member that goes deep into the ground, the bolt is connected to the engineering structure at one end, and the other end goes deep into the ground. The whole bolt is divided into a free section and an anchor section. area, whose function is to apply prestress to the anchor. In the foundation pit support, the anchor rod is one of the commonly used support forms. The anchor rod is cheap and widely used. However, the anchor rod is generally a cylindrical steel bar. The friction between the steel bar and the ...

Claims

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Application Information

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IPC IPC(8): E02D5/74E21D21/00
CPCE02D5/74E21D21/0026E21D21/0033
Inventor 袁炳祥蔡增锐熊磊陈一鸣
Owner GUANGDONG UNIV OF TECH
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