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A Small Clear Distance Overlapped Tunnel Support Structure

A technology of supporting structure and small clear distance, applied in the direction of tunnel, tunnel lining, shaft equipment, etc., to prevent the deformation of the lower tunnel

Active Publication Date: 2022-03-04
高军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no research on the possible adverse effects in the long-term use of the tunnel after its completion

Method used

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  • A Small Clear Distance Overlapped Tunnel Support Structure
  • A Small Clear Distance Overlapped Tunnel Support Structure
  • A Small Clear Distance Overlapped Tunnel Support Structure

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Embodiment Construction

[0019] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be clear that the described embodiments are only some of the embodiments of the present invention, 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 creative efforts fall within the protection scope of the present invention.

[0020] An embodiment of the present invention provides a support structure for an overlapping tunnel with a small clear distance. The overlapping tunnel with a small clear distance refers to an upper and lower overlapping tunnel with a clear distance of 2-5m between the vault of the lower tunnel and the invert of the upper tunnel. figure 1 It is a schematic diagram of the supporting structure of the overlapping tunnel with a small clear distance according to an embodiment of the present invention, see figure 1 , the small cle...

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Abstract

The embodiment of the present invention discloses a small clear distance overlapping tunnel support structure, which relates to the technical field of tunnel construction. The small clear distance overlapping tunnel support structure includes a lower layer tunnel and an upper layer tunnel directly above the lower layer tunnel; the upper layer tunnel and the upper layer tunnel The direction of the lower tunnel is the same; in the surrounding rock of the arch of the lower tunnel, the first section of steel and the second section of steel are drilled vertically upward; the second section of steel corresponds to the upper and lower positions of the first section of steel; the second section The bottom end of the section steel is welded to the section steel frame of the lower arch; anchor rods are installed on both sides of the section steel frame of the lower arch; A gap is reserved between the bottom end of the shaped steel and the top end of the second section of shaped steel; the steel frame with locking feet is installed on both sides of the inverted arch steel frame of the upper tunnel. The invention is suitable for the excavation construction of overlapping tunnels on upper and lower layers.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to an overlapping tunnel support structure with a small clear distance. Background technique [0002] Restricted by engineering conditions, upper and lower overlapping railway projects appear more and more frequently in traffic construction. At present, a lot of research work has been carried out on the upper and lower overlapping tunnels at home and abroad, and the research directions mainly focus on the small clear distance overlapping tunnels, the analysis of construction mechanical behavior, construction control technology and construction sequence, etc. There is no research on possible adverse effects in the long-term use of tunnels after they are built. Contents of the invention [0003] In view of this, the embodiment of the present invention provides a small clear distance overlapping tunnel support structure, which can prevent or reduce the damage of the lowe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/18E21D11/15E21D20/00E21D9/14
CPCE21D11/18E21D11/152E21D20/00E21D9/14
Inventor 林晓高军王东旭刘素云杨立云谭发刚黎建华蔡荣喜徐凡献周建刚李俊红项小珍王伟
Owner 高军
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