Segment deformation control and flood-proof device and operation method for tunnel opening construction

A deformation control and segment technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve problems such as deformation of tunnels with open construction segments, and achieve the effect of ensuring integrity and avoiding additional deformation.

Inactive Publication Date: 2008-01-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] Aiming at the deficiencies of the existing prestressed support system and anti-flooding door system, the invention aims to solve the two key problems of opening construction se

Method used

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  • Segment deformation control and flood-proof device and operation method for tunnel opening construction
  • Segment deformation control and flood-proof device and operation method for tunnel opening construction
  • Segment deformation control and flood-proof device and operation method for tunnel opening construction

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Embodiment Construction

[0030] A new type of shield tunnel opening construction segment deformation control and anti-flooding device, including prestressed support, door frame 8, sliding cover plate 15, traction device 19, 20, closing of tunnel anti-flooding door, door frame 8 and its connection The stability of the steel pipe sheet 11 is realized by the prestressed support 1 of the pipe deformation control system.

[0031] The anti-flooding door is made up of door frame 8, sliding type cover plate 15. The door frame 8 is connected to the steel pipe sheet 11 at the opening by means of welding, rivets, etc., and each edge has a row of a certain number of connection holes for riveting and fixing with the sliding cover plate 15; the sliding cover plate 15 is curved on one side and flat on the other. Dustpan-shaped, upside down on the arc-shaped steel guide rails 17 of the left and right prestressed brackets 1, and can be controlled by traction devices 19, 20 to move up and down along the arc-shaped stee...

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Abstract

This is a duck piece distortion control and anti-submerge device to prevent duck piece distortion during construction and collapse upon water/dust burst and submerge of main channel. The structure includes prestress bracket system, door frame, sliding cover and guiding device. The door frame is welded to the steel duck piece at hatch. The sliding cover is fastened on a curve steel rail of a circle bracket to the two sides of the hatch. The guiding device is composed by calbe and –·‘¨‰½. The sliding cover is capable of sliding along the rail to close the door by human control the cable. Loading on the slide cover is supported by the prestress bracket to avoid distortion to the duck piece and collapse.

Description

technical field [0001] The invention belongs to the field of shield tunnel construction, and relates to the construction of lateral or bottom opening projects such as tunnel connecting passages or external water pump rooms, especially the tunnel segment deformation control and tunnel submersion protection technology under this working condition. Background technique [0002] During the construction of highway and railway tunnels, considering factors such as tunnel drainage and disaster prevention and escape, it is usually necessary to set up auxiliary facilities such as water pump rooms or communication channels. Figures 1 and 2 are schematic diagrams of the co-construction structure of a tunnel communication channel and water pump room in Shanghai. For shield tunnels, the construction of connecting passages or pump houses requires opening the assembled lining segments on the side or bottom of the tunnel (usually steel pipe segments are used near the opening) after the main t...

Claims

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Application Information

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IPC IPC(8): E21D11/12
Inventor 胡向东严长征肖忠华
Owner TONGJI UNIV
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