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Ultra-short type continuous advancing tunneling machine and continuous tunneling method

A push-type, ultra-short technology, which is applied in the direction of earthwork drilling, mining equipment, tunnels, etc., can solve the problems of low construction efficiency in short-distance excavation, improve construction efficiency and construction safety factor, high excavation efficiency, and facilitate Effects of manipulation and switching

Active Publication Date: 2020-07-28
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

[0003] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes an ultra-short continuous propulsion roadheader and a continuous tunneling method, which solves the problem of low efficiency of short-distance excavation in the prior art

Method used

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  • Ultra-short type continuous advancing tunneling machine and continuous tunneling method
  • Ultra-short type continuous advancing tunneling machine and continuous tunneling method
  • Ultra-short type continuous advancing tunneling machine and continuous tunneling method

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Embodiment 3

[0032] Embodiment 3: a kind of method for the continuous excavation of ultra-short type continuous propulsion type roadheader as described in embodiment 2, the steps are as follows:

[0033] S1: The propulsion mechanism 3 distributed along the circumferential direction of the main drive 6 and used to connect the shoe unit and the shield body 2 is divided into No. 1 telescopic cylinder and No. 2 telescopic cylinder; No. 1 telescopic cylinder is set as 1# propulsion cylinder, and No. Telescopic oil cylinder is set as 2# propulsion cylinder; 1# propulsion cylinder and 2# propulsion cylinder are set at cross interval;

[0034] S2: During excavation, the shoe unit is braced tightly on the cave wall, and the cutter head rotates to excavate the tunnel face under the action of the main drive. The corresponding No. 1 telescopic cylinder (1# propulsion cylinder) and No. propulsion cylinder) to alternately expand and contract, and continuously propel the main drive and cutterhead to dig ...

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Abstract

The invention discloses an ultra-short type continuous advancing tunneling machine and a continuous tunneling method and solves the problem about low construction efficiency of short-distance excavation in the prior art. The ultra-short type continuous advancing tunneling machine comprises a shield body and a muck conveyor; a main drive is arranged inside the shield body; the front end of the maindrive is connected with a cutter head; the outer wall of the main drive is provided with a plurality of shoe support units in the circumferential direction; and the shoe support units are connected with the shield body through linkable advancing mechanisms. The ultra-short type continuous advancing tunneling machine disclosed by the invention has the functions such as excavation, advancing and muck discharging; advancing systems are symmetrically arranged at the outer side of the drive; the length of the overall machine is shortened; the length of the overall machine is about 5 m; and the ultra-short type continuous advancing tunneling machine is compact in structure and convenient and quick to assemble and disassemble. Two groups of advancing mechanisms implement linked action; when onegroup is implementing the advancing operation, the other group synchronously implements restoration, thus shutdown caused by asynchronization is prevented; continuous operation of the tunneling machine can be realized; and high tunneling efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to an ultra-short continuous propulsion boring machine and a continuous tunneling method. Background technique [0002] Due to the advantages of safety and high efficiency, full-face rock tunnel boring machine (TBM) has gradually replaced the conventional drilling and blasting method, and is increasingly used in mountain tunnel construction. The common length of TBM is about 200m, and some designs are even as long as 500m. The overall cost is high, and the assembly and operation are relatively complicated. Its advantages are more evident in long and large tunnels. However, if the distance of the tunnel itself is relatively short, or if some rescue passages and communication passages are designed between the main tunnels, the construction cost of using TBM is relatively high, while the drilling and blasting method has certain disadvantages in terms of construction safety,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/06E21D9/093E21D9/12
CPCE21D9/0621E21D9/087E21D9/12E21D9/093
Inventor 田彦朝谭顺辉贾连辉贺飞宁向可孙志洪徐姣姣
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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