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Tunneling machine adopting laser to break rocks and tunneling method of tunneling machine

A roadheader and laser technology, used in earth-moving drilling, mining equipment, tunnels, etc., can solve problems such as the frequency of hob wear and replacement, abnormal damage to metal tools, and reduced efficiency of shield tunneling, so as to reduce excavation costs and save money. Tool cost, the effect of reducing the risk of tool change

Pending Publication Date: 2019-04-02
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

[0002] At present, tunnel excavation is aimed at rock formations, mainly relying on disc-shaped hobs to squeeze rocks to achieve the purpose of breaking rock masses. The main thing to overcome is the compressive strength of rocks. For rock formations with general strength, the rock-breaking efficiency is acceptable. However, with the increase of rock strength, the efficiency of the hob to squeeze and break the rock gradually decreases, and the abnormal wear and replacement frequency of the hob increases, resulting in a decrease in the efficiency of shield tunneling and an increase in tunneling costs.
At the same time, when excavating severely uneven ground such as soft top and hard bottom, traditional metal tools are prone to abnormal damage

Method used

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  • Tunneling machine adopting laser to break rocks and tunneling method of tunneling machine
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  • Tunneling machine adopting laser to break rocks and tunneling method of tunneling machine

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Embodiment Construction

[0030] 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, not all, embodiments of the present invention. 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.

[0031] Such as figure 1 and Figure 7 As shown, a roadheader using laser to break rocks includes a main body of the roadheader. A cutterhead 301 is provided on the mainframe of the roadheader. The laser generator 2 is arranged on the cutterhead 301 .

[0032] The laser generating device 2 includes a laser emitter 201 and a water cooler 202 , both of which are arranged on the cutter head 301 . The water cooler 202 of the present invention is a water jet nozzl...

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Abstract

The invention discloses a tunneling machine adopting a laser to break rocks and a tunneling method of the tunneling machine. The problems that as the strength of the rocks increases, abnormal wear andthe replacement frequency of a hob increase, subsequently, the shield tunneling efficiency is lowered, and the tunneling cost is increased are solved. The tunneling machine comprises a tunneling machine main engine, a cutterhead is arranged on the tunneling machine main engine, and laser generating devices are arranged on the cutterhead. According to the tunneling machine adopting the laser to break the rocks and the tunneling method of the tunneling machine, traditional metal cutting tools are replaced with a laser and water cooling principle, the efficiency of rock breaking is greatly improved, meanwhile, when tunnelingthe serious uneven geology such as softness-up and hardness-down, the difficult problem that the traditional metal cutting tools are extremely prone to being abnormally damaged is solved, thus the cutting tool cost is saved, and the risk of tool replacing is lowered; and a mode of suspension cutting rock breaking or extruding rock breaking is adopted, the efficiency of excavation is greatly improved, and the excavation cost is lowered.

Description

technical field [0001] The invention relates to the field of tunnel boring machines, in particular to a tunnel boring machine using laser to break rocks and a tunneling method thereof. Background technique [0002] At present, tunnel excavation is aimed at rock formations, mainly relying on disc-shaped hobs to squeeze rocks to achieve the purpose of breaking rock masses. The main thing to overcome is the compressive strength of rocks. For rock formations with general strength, the rock-breaking efficiency is acceptable. However, with the increase of rock strength, the efficiency of the hob to crush rock gradually decreases, and the abnormal wear and replacement frequency of the hob increases, resulting in a decrease in shield tunneling efficiency and an increase in tunneling costs. At the same time, when excavating severely uneven geology such as soft top and hard bottom, traditional metal tools are prone to abnormal damage. [0003] The principle of laser technology is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/1006E21D9/1066E21D9/1073
Inventor 李建斌卓兴建张家年杨洋宁向可李坤欧阳凯
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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