Anti-seismic anchor rod for slope engineering

Abstract

The invention discloses an anti-seismic anchor rod for slope engineering in order to enable the anchor rod to have the good anti-seismic property. The anti-seismic anchor rod comprises a drill bit, ananchoring section straight rod, an energy absorption section rod body, an energy dissipation section and a threaded section straight rod, and the drill bit is of a tip structure arranged at one end of an anchoring section. An elastic energy dissipation component with the two ends fixedly connected with the inner end of the threaded section straight rod and the outer end of the energy absorption section rod body correspondingly is arranged in the energy dissipation section, anti-corrosion sleeves are arranged outside the energy absorption section rod body, the energy dissipation section and the threaded section straight rod, the anti-corrosion sleeves are filled with resin, and reinforcing protrusions are distributed on the outer surface of the anti-corrosion sleeves. A grouting channel formed in the wall of the rod body communicates with a grout outlet formed in the drill bit. The anti-seismic anchor rod for slope engineering has a good anti-seismic effect, an anti-corrosion layer isarranged and makes contact with a rock-soil body, the problem that anchoring force is reduced due to the fact that a traditional anchor rod is corroded in rock-soil for a long time can be solved, andthe anti-seismic anchor rod is simple in manufacturing mode and operation mode, easy to construct and high in anchoring force.

Description

technical field [0001] The invention belongs to the technical field of slope support, in particular to an anti-seismic anchor used for slope engineering. Background technique [0002] With the rapid development of infrastructure construction, bolts, as a fast anchoring component, play a key role in the reinforcement of rock and soil and bring convenience to engineering construction. During construction, the original stress field balance of the rock and soil mass is broken after excavation, resulting in structural instability. The formation of a new stress field requires external forces to achieve stability. The anchoring force of the anchor rod is the most common external force for the balance of the new stress field. Due to its simple structure, easy construction and wide range of use, the pole is widely used in construction sites such as slope treatment, road and bridge, underground space engineering, tunnel engineering, and coal mining roadway support, which speeds up the...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art that the bolt is not anti-seismic, and the bolt has been corroded in the rock and soil for a long time, causing the anchoring force to drop, etc., the present invention provides an anti-seismic bolt for slope engineering, which has good anti-seismic effect, With an anti-corrosion layer in contact with the rock and soil, it can solve the problem of the anchoring force drop caused by the long-term corrosion of the traditional anchor rod in the rock and soil. The production method and operation method are simple, easy to construct, and the anchoring force is high.

Images