Tunnel boring machine for communication channel

Abstract

The invention proposes a tunnel boring machine for connecting passages, which includes a pipe joint lifting trolley, a pipe joint transportation device is provided on one side of the pipe joint lifting trolley, and a rear supporting system is provided on the other side of the pipe joint lifting trolley. The pipe joint hoisting trolley straddles the reaction support system, which is equipped with a pipe joint propulsion system. The pipe joint propulsion system pushes the pipe joint. There is a telescopic conveying device between them. The advantages of the present invention: the force on the reaction frame is distributed to the main tunnel segment through the bridge plate, so that the tunnel excavation has sufficient reaction force support; the continuous slag discharge method is adopted, which avoids the need to stop the excavation when the slag hopper discharges the slag Disadvantages: Realize automatic mechanical excavation, ensure one-time construction, and greatly improve construction efficiency and safety; Segment hoisting trolleys and post-matching all adopt wheeled structures, and the supporting platform is easy to disassemble and assemble, which can realize rapid transition and circulation Construction; the overall construction cost of the open tunnel boring machine is lower.

Description

technical field [0001] The invention relates to tunnel construction equipment, in particular to a communication tunnel boring machine. Background technique [0002] In the technical field of tunnel construction, multiple communication passages are usually designed and built between two adjacent tunnels to serve the functions of connecting tunnels, drainage, fire protection, and emergency escape. The communication channel between tunnels is often constructed by freezing method + mining method at home and abroad. With the development of technology, mechanized construction has begun to "emerge" in communication channel engineering. Compared with freezing method + mining method, mechanized construction has better economic efficiency , high safety, short construction period and so on. [0003] At present, most of the mechanized construction communication channels have a circular cross-section, and most of them use earth pressure balance or mud-water balance roadheaders for const...

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Problems solved by technology

[0005] The invention proposes a communication tunnel boring machine, which can effectively control the surface subsidence, has low safety risks, high construction efficiency, and low overall cost, thereby solving the problem of technical difficulties in applying the rectangular section of the existing communication tunnel boring machine

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