Shield machine and anterior shield system thereof

A technology of shield machine and shield body, which is applied in the direction of earth mover/shovel, shaft lining, tunnel lining, etc. It can solve problems such as collapse and ground subsidence, so as to prevent ground subsidence and collapse accidents, improve construction progress, The effect of low manufacturing and construction costs

Inactive Publication Date: 2012-01-04
BEIJING SANY HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, it is difficult to establish the pressure balance of the excavation surface in the sand and pebble formation through mud or soil materials, which will easily lead to ground subsidence, and even cause collapse accidents in severe cases

Method used

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  • Shield machine and anterior shield system thereof
  • Shield machine and anterior shield system thereof
  • Shield machine and anterior shield system thereof

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Embodiment Construction

[0034] 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 creative efforts fall within the protection scope of the present invention.

[0035] figure 1 Shown is a structural diagram of a shield machine according to an embodiment of the present invention, in which the shield machine includes a front shield body 1a, a middle shield body 1b and a tail shield body 1c. It should be clear that the front of the shield machine refers to the direction of excavation towards the excavation face. Each shield body is a cylindrical structure, which can temporarily support the tunnel section that has been excava...

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PUM

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Abstract

The invention provides a shield machine and an anterior shield system thereof. The system comprises an anterior shield body, an excavation device, a conveyor, and a partition plate, wherein the anterior shield body has a cylindrical structure; the excavation device is arranged on fixing components of the shield machine and a head of the excavation device is used for performing multi action excavation operation on different operation points on an excavation surface; and the conveyor is used for discharging dregs excavated by the head of the excavation device, a first end of the conveyor is arranged below the excavation device and a second end of the conveyor is arranged on the rear part of the first end; and the head of the excavation device and the first end of the conveyor are positioned in front of the partition plate, the second end of the conveyor is positioned on the rear part of the partition plate, and the partition plate is provided with a sealing door which can be opened and closed. The invention can avoid the mud cake agglomeration of a cutter, rolling of the shield body, improved treatment of dregs and pressurized cabin entering operation and has the advantages of quick construction progress, high stability and adaptability and the like.

Description

technical field [0001] The invention relates to the field of tunnels and underground engineering, in particular to a shield machine and a front shield system thereof. Background technique [0002] Shield machine (full name shield tunnel boring machine) is a kind of construction machinery specially used for tunnel excavation. It has been proved to be a cost-effective tunnel construction machine and is widely used in subways, railways, highways, municipal , hydropower and other tunnel projects. [0003] At present, among the shield machines used at home and abroad, earth pressure balance shield machines and mud-water balance shield machines are the main ones. This type of shield machine is equipped with a cutter head at the front end of the front shield, and several knives are installed on the cutter head, and the excavation of the soil can be realized through the rotation of the cutter head. In addition, in order to establish the pressure balance of the excavation surface, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21D11/10E02F3/348
Inventor 杨琦
Owner BEIJING SANY HEAVY MASCH CO LTD
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