Tunnel secondary lining reinforced structure

A secondary lining and tunnel technology, which is applied in the field of reinforced skeleton structures, can solve problems such as easy deformation of hook bars, high cost, deformation and displacement of steel bars, etc., and achieve the effects of ensuring safety and beauty, reducing the number of workers, and improving work efficiency

A secondary lining and tunnel technology, which is applied in the field of reinforced skeleton structures, can solve problems such as easy deformation of hook bars, high cost, deformation and displacement of steel bars, etc., and achieve the effects of ensuring safety and beauty, reducing the number of workers, and improving work efficiency

CN104061004BInactive Publication Date: 2016-07-13CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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  • Tunnel secondary lining reinforced structure
  • Tunnel secondary lining reinforced structure
  • Tunnel secondary lining reinforced structure

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Embodiment Construction

[0021] figure 1 It is a structural schematic diagram of the present invention, figure 2 for figure 1 Middle A-A sectional view, image 3 It is a schematic diagram of the connection structure of the left segment I and the right segment I of the present invention, Figure 4 for image 3 Middle B-B cross-sectional view, as shown in the figure: the secondary lining reinforcement structure of the tunnel in this embodiment includes an outer layer of reinforcement mesh and an inner layer of reinforcement mesh, and the outer layer of reinforcement mesh includes a plurality of wires arranged along the longitudinal extension direction of the constructed tunnel The outer layer of the ring to the main reinforcement 11 and the outer layer of the longitudinal connecting reinforcement 12 bound on the outer layer of the ring to the main reinforcement 11, the inner layer of steel mesh includes a plurality of inner rings arranged along the longitudinal extension direction of the constructed...

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Abstract

The invention discloses a secondary lining reinforcement structure for a tunnel, which comprises an outer reinforcement mesh and an inner reinforcement mesh. The outer reinforcement mesh includes a plurality of outer circumferential main reinforcements arranged along the longitudinal extension direction of the constructed tunnel and bound on The outer longitudinal connecting bars on the outer circumferential main reinforcement, and the inner steel mesh includes a plurality of inner circumferential main bars arranged along the longitudinal extension direction of the constructed tunnel and inner longitudinal connections bound on the inner circumferential main bars It also includes the interlayer connecting bars connecting the outer layer steel mesh and the inner layer steel mesh. The welding method is used to fix the interlayer connecting bars between the outer ring main reinforcement and the inner ring main reinforcement, which can effectively control the sinking of the outer reinforcement mesh and the inner reinforcement mesh, maintain the stability of the inner and outer reinforcement layer spacing of the steel skeleton, and ensure The thickness of the protective layer ensures the safety and beauty of the tunnel structure, while improving work efficiency.

Description

technical field [0001] The invention relates to a steel bar skeleton structure, in particular to a tunnel secondary lining steel bar structure. Background technique [0002] Tunnel engineering has been used so far, mainly for railways, highways, mines, water conservancy, municipal engineering, etc. Most tunnels are composed of primary support and secondary lining. The secondary lining reinforcement structure is basically arranged according to double-layer reinforcement. The reinforced skeleton structure is mainly composed of an outer layer of steel mesh (close to the surrounding rock side) and an inner layer of steel mesh (close to the inner side of the tunnel). The outer layer of steel mesh includes a number of outer circumferential main reinforcements arranged along the longitudinal extension of the tunnel being constructed. and the outer longitudinal connecting bars bound on the outer ring main reinforcement, the inner reinforcement mesh includes a plurality of inner rin...

Claims

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Application Information

Patent Timeline
13 Jul 2016
Publication
CN104061004B
IPC
E21D11/18
Inventors
δ½™ι‘Ί; 秦峰