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Method for increasing rigidity of discontinuous cutter head of full-face tunnel boring machine and curved surface cutter head

A tunnel boring machine, discontinuous technology, applied in tunnels, earth-moving mining, mining equipment, etc., can solve the problems of reducing the life of the cutter head and affecting the operating efficiency of the disc hob, so as to ensure the rock-breaking efficiency and increase the rigidity. Effect

Active Publication Date: 2017-12-29
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for increasing the rigidity of a discontinuous cutterhead of a full-section tunnel boring machine and a curved cutterhead, so as to solve the warping deformation of the cutterhead during the excavation process of the full-section tunnel boring machine in the prior art. However, it is a technical problem that affects the operating efficiency of the disc hob and reduces the life of the cutter head

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  • Method for increasing rigidity of discontinuous cutter head of full-face tunnel boring machine and curved surface cutter head
  • Method for increasing rigidity of discontinuous cutter head of full-face tunnel boring machine and curved surface cutter head
  • Method for increasing rigidity of discontinuous cutter head of full-face tunnel boring machine and curved surface cutter head

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[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but 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.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the technical field of full-section tunnel boring machines, in particular to a method for increasing the rigidity of a discontinuous cutterhead of a full-section tunnel boring machine and a curved cutterhead. The method comprises the steps of: determining the deflection of the circle where the center point of each disc-shaped hob is located during the excavation process of the discontinuous cutter head; prefabricating the discontinuous cutter head so that the circle where the center point of each disc-shaped hob is located is excavated toward the full-section tunnel The excavation direction of the machine is convex, and the convex displacement of the circle where the center point of each disc-shaped hob is equal to the deflection of the circle where the center point of each disc-shaped hob is located. The curved cutter head is prefabricated according to the method. The invention can effectively increase the rigidity of the cutter head of the full-section tunnel boring machine during operation, ensure the rock-breaking efficiency of the disc-shaped hob on the cutter head, thereby improving the cutter head, tool life and operating efficiency of the full-section tunnel boring machine .

Description

technical field [0001] The invention relates to the technical field of full-section tunnel boring machines, in particular to a method for increasing the rigidity of a discontinuous cutterhead of a full-section tunnel boring machine and a curved cutterhead. Background technique [0002] Full-face tunnel boring machine (full face rock tunnel boring machine - Full Face Rock Tunnel Boring Machine, referred to as TBM and shield - Shield) can realize the parallel and continuous operation of excavation, support, slag discharge and other construction processes. The factory-like assembly line construction tunnel equipment integrated with power, electricity, liquid, light, gas and other systems has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits, and can realize the construction of long and deep tunnels in complex geological formations that are difficult to achieve by traditional drilling and blasting methods , The application in Chin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087
Inventor 张照煌高青风李福田孙飞
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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