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Elastic anchor cable

An anchor cable and elastic technology, applied in the installation of anchor rods, sheet pile walls, mining equipment, etc., can solve problems such as damage to anchor components, to ensure support resistance, avoid cable body overload or being broken, and good elongation performance Effect

Inactive Publication Date: 2014-07-16
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an elastic anchor cable with impact resistance and high extensibility, so as to solve the problems of damage to anchorage components caused by instantaneous impact loads such as earthquakes and rockbursts and the support of large engineering deformations.

Method used

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, the preferred embodiment of the elastic anchor cable consists of a spring cable body 1, a tray 2 and an anchor 3, the free section of the spring cable body 1 is provided with a high-resistance elastic device 4, the anchor head of the spring cable body 1 and The anchor tail section is a steel strand structure, the tray 2 is set on the anchor tail section and fastened by the anchorage 3, and the length of the high-resistance elastic device 4 can be set according to the cable body and actual engineering requirements.

[0014] In order to realize that this preferred embodiment can solve problems such as earthquake, rockburst and other instantaneous impact loads on the damage of anchor components and engineering large deformation support, the high-resistan...

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Abstract

An elastic anchor cable comprises a spring cable body, a tray and an anchor. A free segment of the spring cable body is provided with a high-resistance elastic device. The head and tail segments of the spring cable body are in steel strand structures. The tray sleeves the tail segment and is fastened through the anchor. The high-resistance elastic device of the spring cable body is composed of a plurality of springs and a single deformed steel bar; the springs are made by sequentially winding steel strands outside the cable body; the deformed steel bar is arranged in the center of the springs. The high-resistance elastic device of the spring cable body and the steel strands are non-physically connected and reinforced. The elastic anchor cable has the advantages that vibration energy generated by transient impact can be absorbed, supporting resistance is guaranteed while engineering large deformation is met, damage of anchor components by impact loads such as earthquake and rock burst can be largely decreased, and the problems of surrounding rock control for largely deformed roadways can be well solved.

Description

technical field [0001] The invention belongs to the technical field of rock-soil anchorage and engineering support, and in particular relates to an elastic anchor cable which has impact resistance and can adapt to large engineering deformations. Background technique [0002] The anchor cable has the characteristics of high bearing capacity, large anchoring depth, and large prestress can be applied, and it occupies a very important position in geotechnical reinforcement engineering. With the continuous development of anchoring technology, and a lot of practice in the support engineering of slopes, underground engineering and deep high-stress shafts in areas with high seismic intensity, many new anchor cables have been developed, such as seismic anchor cables, yield anchor cables, etc. , and played an important role in engineering applications. However, this type of anchor cable is mostly improved on the anchorage, and the construction process is more, the structure is relati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/74E21D21/00
Inventor 刘洪涛赵希栋冯吉成李季
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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