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Zero-ring Segment Demolition Method for Submerged Tunnel

A technology of zero-ring segment and negative-ring segment, which is applied in the field of zero-ring segment removal, can solve the problems of the small space at the originating end of the shield tunnel and the difficulty of dismantling the zero-ring segment at the originating end, achieving safe hoisting The effect of high coefficient

Active Publication Date: 2022-05-27
中建八局轨道交通建设有限公司
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Problems solved by technology

[0004] In order to overcome the defects existing in the prior art, a method for dismantling the zero-ring segment of the underground excavation tunnel is now provided to solve the problem that the space at the originating end of the shield tunnel is narrow and the removal of the zero-ring segment at the originating end is difficult

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  • Zero-ring Segment Demolition Method for Submerged Tunnel
  • Zero-ring Segment Demolition Method for Submerged Tunnel
  • Zero-ring Segment Demolition Method for Submerged Tunnel

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[0025] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0026] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 to Figure 4 It is a schematic diagram of a zero-ring segment removal method for an underground excavation tunnel according to an embodiment of the present invention, Figure 5 It is a schematic diagram of the separation state of the zero-ring segment and the positive-ring segment ...

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Abstract

The invention discloses a zero-ring segment removal method for underground excavation tunnels. Firstly, the negative-ring segment is pushed to the dismantling part of the originating shaft and then pushed back to the originating line as a support for the zero-ring segment, preventing the zero-ring segment from When it is pushed out of the starting hole, it is dumped, and finally the zero-ring segment, negative-ring segment and starting frame are moved to the starting shaft as a whole for disassembly and hoisting. In a narrow space environment, the zero-ring segment can be removed quickly and safely. , and the hoisting of the zero-ring segment can be hoisted and removed by conventional hoisting machinery, without the need to design and process unconventional hoisting tools, and the hoisting safety factor is high. The invention solves the problems that the starting end of the shield tunnel has a narrow space and the zero-ring segments at the starting end are difficult to remove.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a zero-ring segment removal method for a buried tunnel. Background technique [0002] In some cities, the construction of subways is not allowed to occupy the road. Therefore, the shield tunneling shaft is usually constructed by the underground excavation method. origin space origin. [0003] The space at the starting end of the tunnel basically only meets the space required for the starting of the shield machine. The top structure of this space is mostly a closed underground excavation section, and there is no hoisting space reserved for removing the zero-ring segments. The removal of the zero-ring segment in the space has brought great difficulties. Contents of the invention [0004] In order to overcome the defects existing in the prior art, a method for dismantling the zero-ring segment of an underground excavation tunnel is now provided to solve the problem t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08
CPCE21D11/08
Inventor 郑永杰
Owner 中建八局轨道交通建设有限公司
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