Mounting machine for steel arch of tunnel and mounting method of steel arch

Abstract

The invention discloses a mounting machine for a steel arch of a tunnel and a mounting method for the steel arch. The mounting machine comprises a machine frame, a walking driving mechanism, lifting mechanisms, traction mechanisms and mechanical hand mechanisms. A platform is arranged on the top of the machine frame. The mechanical hand mechanisms are arranged on the platform. The traction mechanisms are arranged on the machine frame and drive the mechanical hand mechanisms to move on the platform. The walking driving mechanism is arranged at the bottom of the machine frame and drives the machine frame to move. The lifting mechanisms are movably connected to the machine frame. In the working process, the lifting mechanisms move to the ground and lift the installed and connected steel arch to the platform, the mechanical hand mechanisms take down the steel arch from the lifting mechanisms, the traction mechanisms drive the mechanical hand mechanisms to move to convey the steel arch to an installation position, and the steel arch is lifted to an installation height through the mechanical hand mechanisms. According to the mounting machine, butt-joint assembly of the whole steel arch is conducted on the ground, the steel arch is installed at the required position of the tunnel, quick installation of the steel arch is realized with fewer people and is safer, and therefore shortcomings in the prior art are overcome.

Description

technical field [0001] The invention relates to a tunnel steel arch installation machine and an installation method thereof, belonging to the technical field of tunnel construction equipment and methods. Background technique [0002] In the drilling and blasting tunnel construction, when the surrounding rock with poor self-stability is encountered, the initial support should be carried out immediately after the excavation process: install steel arches, hang nets, and carry out concrete spraying operations to consolidate the tunnel and prevent The tunnel collapsed. [0003] The installation of the steel arch means that each section is usually divided into 3 sections, and the steel arch connected by flange bolts between each section is installed on the circular excavation surface of the tunnel, and is welded and positioned with the anchor rod driven into the surrounding rock in advance. [0004] The current method of steel arch installation is usually to use a simple steel pl...

AI Technical Summary

Problems solved by technology

[0008] Use large-scale special machinery for steel arch installation and ancillary operations, equipped with a traveling mechanism, use multifunctional hydraulic arms to clamp the steel arch for installation, but still connect the steel arch in the air, and manually connect the bolts

Although the installation speed of the steel arch is fast, it requires experienced operators to quickly operate the hydraulic arm for steel arch docking; because it is a special machine, it does not have the function of the original steel platform as a blasthole construction platform, and the blasthole construction must be done after the operation is completed. The next cycle of work can only be carried out after the platform is placed in place, thus increasing the time for equipment to enter and leave the site. As far as the entire tunnel construction is concerned, this construction method is more time-consuming than manually installing steel arches, and the cost of machinery procurement is high, and the operation and maintenance are complicated. Difficult to promote

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