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Modular TBM cutter disc capable of performing variable diameter expanding excavation

A modular, cutterhead technology for mining equipment, earthmoving, tunneling, etc.

Pending Publication Date: 2019-08-23
CHINA RAILWEY ENG SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no corresponding TBM construction machinery for technical measures to reserve deformation in tunnel construction

Method used

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  • Modular TBM cutter disc capable of performing variable diameter expanding excavation
  • Modular TBM cutter disc capable of performing variable diameter expanding excavation
  • Modular TBM cutter disc capable of performing variable diameter expanding excavation

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] See attached figure 1 to attach image 3 The preferred embodiment of the invention is described in detail. A modularized variable-diameter expanded TBM cutterhead includes a quadrilateral structure central cutterhead module 1 with a central gyrator installed, and four sides of the central cutterhead module 1 arranged around the A fan-shaped peripheral cutterhead module 2, four peripheral cutterhead modules 2 are respectively located on the four sides of the central cutterhead module 1, so as to form a circular cutterhead, the central cutterhead module 1 and the peripheral The cutterhead modules 2 are connected by two push cylinders 3, the base of the push cylinder 3 is fixedly installed on the central cutterhead module 1, and the piston rod head of the push cylinder 3 is fixedly installed on the peripheral cutterhead module 2, And the jacking cylinder 3 is pos...

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Abstract

The invention relates to the technical field of tunnel construction, in particular to a modular TBM cutter disc capable of performing variable diameter expanding excavation. The modular TBM cutter disc capable of performing the variable diameter expanding excavation comprises a quadrilateral structural centre cutter disc module which is provided with a centre rotary body, and fan-shaped structuralperipheral cutter disc modules which are arranged around the four sides of the centre cutter disc module; the four peripheral cutter disc modules are respectively positioned on the four sides of thecentre rotary body so that an annular cutter disc is formed; the centre cutter disc module is connected with each peripheral cutter disc module through two ejecting and pushing oil cylinders; the baseof each ejecting and pushing oil cylinder is fixedly mounted on the centre cutter disc module; a piston rod head of each ejecting and pushing oil cylinder is fixedly mounted on the corresponding peripheral cutter disc module; each ejecting and pushing oil cylinder is positioned on one side, close to a soil warehouse of a rounding cutter disc, so that the variable diameter expanding excavation canbe realized by pushing the peripheral cutter disc modules through the ejecting and pushing oil cylinders, and an excavation line is properly expanded so as to reserve a deformation amount; and therefore, the problem that large-deformation expanding excavation of soft rock with high crustal stress in tunnel construction is effectively solved.

Description

technical field [0001] The invention relates to the field of tunnel construction machinery, in particular to a TBM cutter head with variable diameter expansion and excavation. Background technique [0002] TBM tunnel excavation problems such as high ground stress, large deformation of surrounding rock, and mechanism of TBM jamming in deep tunnels are often encountered during tunnel construction. In the design and construction of high ground stress soft rock tunnels, technical measures such as reserved deformation, support methods, and excavation methods are usually adopted to effectively control the occurrence of large deformations and ensure project safety. The reserved deformation of the tunnel is to give full play to the self-supporting effect of the surrounding rock, allowing the initial support and surrounding rock to have a certain deformation, and the reserved amount for appropriately expanding the design excavation line is called the reserved deformation of the tunne...

Claims

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Application Information

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IPC IPC(8): E21D9/087
CPCE21D9/087E21D9/0874
Inventor 梅元元刘光鑫白江涛章龙管李恒高旭东郑军周鸿雏邓洋陈洪财陈文菊
Owner CHINA RAILWEY ENG SERVICE CO LTD
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