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Hard rock tunnel boring machine

A tunnel boring machine and hard rock technology, which is applied in tunnels, tunnel linings, shaft linings, etc., can solve the problems of complex ground support in tunnels, achieve rapid excavation, ensure the overall structural strength, and reduce vibration

Active Publication Date: 2021-03-26
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hard rock tunnel boring machine to solve the problem of rapid expansion and excavation of tunnels and the support of complex strata

Method used

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  • Hard rock tunnel boring machine

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Embodiment

[0038] see Figure 1 to Figure 8 , a hard rock tunnel boring machine, this embodiment is applied to the rapid expansion and support of tunnels.

[0039] A hard rock tunnel boring machine, comprising a cutter head 1, a front shield 2, a main drive 3, a connecting bridge 4, a multifunctional assembly machine 5, a main propulsion system 6 and a tension shield 7; the main bearing of the cutter head 1 and The main drive 3 is connected, and the drive motor 3.1 of the main drive 3 provides power to drive the cutter head 1 to excavate the tunnel face. protection; one end of the connecting bridge 4 is connected with the front shield 2, and the other end of the connecting bridge 4 is connected with the saddle frame 7.5 of the brace shield 7; one end of the main propulsion system 6 is connected with the connecting bridge 4, and the The other end of the main propulsion system 6 is connected with the tension shield 7 to provide thrust in the open TBM excavation mode; the connecting bridge...

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Abstract

The invention provides a hard rock tunnel boring machine. The hard rock tunnel boring machine comprises a cutter head, a front shield, a main drive, a connecting bridge, a multifunctional assembling machine, a main propelling system and a tight supporting shield; the cutter head and the front shield are both connected with the main drive and used for driving the cutter head to work and protectingthe main drive; one end of the connecting bridge is connected with the front shield, and the other end of the connecting bridge is connected with the tight supporting shield; one end of the main propelling system is connected with the connecting bridge, and the other end of the main propelling system is connected with the tight supporting shield and used for providing thrust in the tunneling process; the connecting bridge is connected with the multifunctional assembling machine in a sliding manner; and the multifunctional assembling machine comprises a segment assembling machine body and a steel arch assembling machine body and is used for assembling segments, steel tiles and steel arches. The multifunctional assembling machine is installed on the connecting bridge and comprises the segment assembling machine body and the steel arch assembling machine body, and therefore different supporting modes can be selected according to different geologies when tunnel boring is conducted under the complex geological conditions.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a hard rock tunnel boring machine. Background technique [0002] During the construction of TBM (Tunnel Boring Machine, full-face hard rock tunnel boring machine), problems of tunnel expansion and support are often encountered. In previous designs, TBM expansion and excavation were often carried out with super-excavation cutters or cutter head diameter expansion. Solution, the expansion range of the super-excavation knife is small, and the effect is relatively limited. The diameter of the cutter head is used to expand the tunnel. The method is related to the geological conditions of the tunnel, mainly including segment support, steel arch support and steel tile support, etc. In tunnels with complex geological conditions, a mixture of various support methods is required. Existing TBM often adopts the design scheme of segment assembly machine or steel arch assembly mac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/06E21D11/40
CPCE21D9/0873E21D11/40E21D9/0671
Inventor 刘飞香程永亮彭正阳刘龙尹建超暨智勇阳旭肖京
Owner CHINA RAILWAY CONSTR HEAVY IND
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