Novel tunnel boring machine based on high speed particle impact-mechanical combined rock breaking

A technology of tunnel boring machine and high-speed particles, which is applied in tunnels, mining equipment, earthwork drilling and mining, etc. It can solve the problems of prolonging the construction period, slow tunneling speed, and small penetration, so as to improve construction efficiency and expand the scope of excavation Effect

Pending Publication Date: 2019-03-08
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

However, my country's geological conditions are complex. Existing tunnel boring machines have small penetration, slow tunneling speed, and fast tool wear in high-strength hard rock environments. In soft rock geology, machine jams are prone to occur, which will greatly prolong construction. cycle, increasing construction costs

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  • Novel tunnel boring machine based on high speed particle impact-mechanical combined rock breaking
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  • Novel tunnel boring machine based on high speed particle impact-mechanical combined rock breaking

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Embodiment Construction

[0022] 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.

[0023] Such as Figure 1 to Figure 5 As shown, a new type of tunnel boring machine based on high-speed particle impact-mechanical combined rock breaking includes a main body of the roadheader, and the main body of the roadheader is provided with a cutterhead 1, and a hob 102 is arranged on the cutterhead 1. The cutter head 1 is also provided with a particle nozzle 2 . The hob 1 is a disc-shaped hob commonly used in tunnel boring machines.

[0024] Such as ...

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Abstract

The invention discloses a novel tunnel boring machine based on high speed particle impact-mechanical combined rock breaking. The problems of low penetration, slow tunneling speed, fast tool abrasion and the like of an existing tunneling machine in high strength hard rock environments are solved. The novel tunnel boring machine based on the high speed particle impact-mechanical combined rock breaking comprises a tunnel boring machine body, the tunnel boring machine body is provided with a cutterhead, the cutterhead is provided with a hob, and the cutterhead is further provided with a particle nozzle. According to the novel tunnel boring machine based on the high speed particle impact-mechanical combined rock breaking, a novel cutterhead structure of a full-section tunnel boring machine is designed, wherein the novel cutterhead structure is provided with the particle nozzle, the disk-shaped hob and a scraper, high speed particle impact-mechanical tool coupling rock breaking is used, a particle injection system and a particle recovery system are designed, the excavation scope of the full-section tunnel boring machine is expanded, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the field of tunnel boring machines, in particular to a novel tunnel boring machine based on high-speed particle impact-mechanical combined rock breaking. Background technique [0002] The full-face tunnel boring machine is currently widely used in the construction of hard rock tunnels such as railways, hydropower, transportation, mines and municipalities. However, my country's geological conditions are complex. Existing tunnel boring machines have small penetration, slow tunneling speed, and fast tool wear in high-strength hard rock environments. In soft rock geology, machine jams are prone to occur, which will greatly prolong construction. cycle, increasing construction costs. Contents of the invention [0003] The technical problem to be solved by the present invention is that the existing tunnel boring machine has small penetration, slow tunneling speed, fast tool wear in the high-strength hard rock environment, and is pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10E21D9/11
CPCE21D9/11E21D9/1066
Inventor 姜礼杰文勇亮贾连辉叶蕾贺飞
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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