Contact channel heading machine

Abstract

The invention provides a contact channel heading machine. The contact channel heading machine comprises a pipe joint lifting trolley, wherein a pipe joint conveying device is arranged on one side of the pipe joint lifting trolley, an after-matching system is arranged on the other side of the pipe joint lifting trolley, the pipe joint lifting trolley crosses a counterforce support system, a pipe joint push system is arranged on the counterforce support system, a pipe joint is pushed by the pipe joint push system and acts on a main heading machine, and a telescopic conveying device is arranged between the pipe joint push system and the main heading machine. The contact channel heading machine has the advantages that the acting force on a counterforce frame is dispersed to a main tunnel segment through a bridge plate, so that enough counterforce support is provided for tunnel excavation; a continuous slag discharge mode is adopted, so that the defect of excavation stop when slag is discharged from a slag bucket is avoided; automatic mechanical excavation is realized, one-time forming of construction is guaranteed, and the construction efficiency and the safety are greatly increased; both the pipe joint lifting trolley and the after-matching system adopt wheel structures, a support platform is convenient to remove and install, and quick transition and cycling construction can be realized; and the total construction cost of an open tunneling machine is low.

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...

AI Technical Summary

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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