A tunnel excavation device and method using laser cutting to break rock

Abstract

The invention belongs to the technical field of tunnel engineering, and particularly discloses a tunneling device and method adopting laser cutting for rock breaking. The tunneling device comprises aself-travelling mechanism, a connecting mechanism and a cutting mechanism; the self-travelling mechanism is used for achieving moving of the whole tunneling device; the connecting mechanism comprisesa main driving shaft, a swing arm and an auxiliary driving shaft which are connected sequentially; the cutting mechanism comprises a laser cutterhead mounted on the auxiliary driving shaft and a plurality of laser cutting heads which are mounted on the laser cutterhead and arranged in a crossed mode in the horizontal direction and the vertical direction; and a distance sensor is further mounted onthe laser cutterhead to detect the distance between the laser cutterhead and a to-be-cut rock layer. The tunneling method adopts the tunneling device to break rock so as to achieve tunneling. The loss of a cutter is avoided, cutter replacing is not needed, and the cutting efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and more particularly relates to a tunnel excavation device and method using laser cutting to break rock. Background technique [0002] Rail transit is the mainstream and direction of modern urban traffic. It has large capacity, fast speed, little interference, and low energy consumption. It is the most effective way to solve the traffic tension in big cities. At present, with the continuous acceleration of the urbanization process, the contradictions of urban traffic have become increasingly prominent. Major cities are actively planning and constructing urban rail transit projects, and tunnel boring machines are inseparable from the construction of urban rail transit. [0003] The working principle of the current mainstream full-face tunnel boring machine is to drive the hob to excavate the rock interface during the rotation of the cutter head. The hob bears a large load in the proces...

AI Technical Summary

Problems solved by technology

[0003] The working principle of the current mainstream full-face tunnel boring machine is to drive the hob to excavate the rock interface during the rotation of the cutterhead. The hob bears a large load in the process of crushing the rock and is accompanied by severe impact, resulting in tool consumption. According to statistics, the cost of cutting tools accounts for about 1 / 3 of the total cost of tunneling construction, and the replacement of cutting tools will consume a lot of manpower and material resources, resulting in extended construction period. disturbance, which increases the potential risk of jamming or even rockburst disasters

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