Support bolts for shotcrete support of steel frame in broken zone in high earthquake zone

Abstract

The invention discloses a supporting anchor rod for steel frame pneumatically placed concrete support in a smashing area of a high seismic belt. The supporting anchor rod for steel frame pneumaticallyplaced concrete support in the smashing area of the high seismic belt comprises a bracket, a fixed block, a supporting part used for supporting building, a drive part used for driving the supportingpart to move up and down and a first connecting plate, wherein a first through hole penetrating up and down is formed in the middle of the fixed block, and the outer side of the first through hole isfixedly connected with the bracket; the supporting part is slidably arranged in the first through hole in a penetrating mode; the lower end of the supporting part is fixed to the drive end of the drive part; the lower end of the drive part is fixed to the first connecting plate; and the first connecting plate is located below the supporting part and fixedly connected with the bracket. According tothe supporting anchor rod for steel frame pneumatically placed concrete support in the smashing area of the high seismic belt, the height of the supporting anchor rod can be adjusted slightly, time is shortened, labor is saved, and the working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of machinery industry, and more specifically relates to a supporting anchor rod for steel frame sprayed concrete support in a broken zone in a high earthquake zone. Background technique [0002] Bolt support refers to a reinforcement and support method used in surface engineering such as slopes and deep foundation pits, as well as underground chambers such as tunnels and stopes. [0003] Anchor bolts are the most basic part of roadway support in coal mines, which can strengthen the surrounding rock of the roadway together. In addition to being used in mines, anchor rods can also be used in engineering technology to reinforce slopes, tunnels, dams, etc. Especially in earthquake-prone areas, earthquakes often occur, and the degree of damage to mines, slopes, tunnels, and dams is large. It is necessary to reinforce them with bolts to reduce the degree of damage. [0004] However, there are some defects in exi...

AI Technical Summary

Problems solved by technology

[0004] However, there are some defects in existing anchor rods in use, such as: the height of the supporting anchor rod cannot be adjusted slightly when supporting, and it is necessary to adjust the height of the anchor rod by trying to replace the steel frame supporting the anchor rod one by one during use. height, which not only greatly increases the workload of the workers, but also prolongs the working hours, and the work efficiency is very low

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