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Contact channel heading machine

A communication channel and roadheader technology, applied in the field of communication channel roadheaders, can solve the problems of high construction efficiency, low safety risk, and low overall cost, and achieve the effects of high construction efficiency, low safety risk, and low overall cost

Active Publication Date: 2019-12-20
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] Such as figure 1 and 2 As shown in the figure, an open rectangular connecting tunnel boring machine includes a pipe joint transportation device 1, a pipe joint hoisting trolley 3, an excavation main engine 4, a rear supporting system, a reaction force support system, a pipe joint propulsion system and a telescopic conveying device. The pipe joint lifting trolley 3 straddles the reaction force support system, the pipe joint transport devic...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/08E21D9/12E21D11/40E21D11/08
CPCE21D9/06E21D9/0607E21D9/08E21D9/12E21D11/40E21D11/08
Inventor 贾连辉叶蕾肖威范磊孙磊闫扬义周倩杨聚辉王小涛刘娇冯猛袁征徐德帆付玉龙吴彦星徐光亿肖晶娜
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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