Tunnel construction machine for ground depression prevention

Abstract

The invention relates to a tunnel construction machine for ground depression prevention. The tunnel construction machine comprises a supporting bottom plate and a discharging device. The discharging device is mounted at the top of the supporting bottom plate and comprises a discharging electric sliding block, discharging connecting columns, a discharging supporting plate, a conveying mechanism, adischarging mechanism, a return mechanism and a rotating mechanism. According to the tunnel construction machine, the problems that at present, during U-shaped steel and supporting steel connection inpipe shed construction, the amount of labor is large, bolts need to be taken manually and cannot be automatically controlled, located and mounted, the bolts are prone to falling off during manual mounting, and bolt mounting is difficult can be solved; the functions of bolt automatic bolt discharging and automatic bolt feeding action in pipe shed construction can be achieved; and the tunnel construction machine has the advantages that the amount of labor is small, bolts can be automatically conveyed and can be automatically controlled, located and mounted, the bolts cannot fall off when automatically mounted, and bolt mounting is simple and convenient.

Description

Technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel construction machine for preventing ground surface subsidence. Background technique [0002] Pipe shed construction, or umbrella arch method, is an advanced support structure for shallow burying and undercutting of underground structures. Its essence is to drill in advance on the hidden arc of the lining arch of the underground tunnel to be excavated or the structure. A steel pipe with a large moment of inertia is installed in the hole, which acts as a temporary advance support to prevent soil collapse and ground subsidence to ensure the safe operation of tunneling and subsequent processes; the pipe shed advance support method is a weakening method developed in recent years. As a new technology for tunnel excavation in surrounding rock, the pipe roof method was first used as an auxiliary method for tunnel construction. In the construction of soft rock tunnels, it ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems, the present invention provides a tunnel construction machine for preventing ground surface subsidence, which can solve the problems of heavy labor, manual picking of bolts and inability to connect U-shaped steel and supporting steel in the existing pipe shed method. Automatically control the positioning installation, the bolts are easy to fall during manual installation, and the bolts are difficult to install. It can realize the functions of automatic bolt unloading and automatic bolt loading in the construction of the pipe shed method. It has the advantages of small labor, automatic transmission of bolts, The bolts can be automatically controlled for positioning and installation, the bolts will not fall during automatic installation, and the bolts are easy to install, etc.

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