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Corner reinforcing member of shield tunnel duct piece and application method thereof

A technology for shield tunnel segments and reinforcement components, which is applied in tunnels, tunnel linings, earth-moving drilling, etc., can solve problems such as large forces on edges and corners, and achieve the effect of avoiding edge and corner damage and achieving scientific and reasonable costs.

Active Publication Date: 2015-12-02
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Damage to the edges and corners of the shield tunnel segment may occur during the transportation and moving process before the completion of the shield tunnel construction, or may occur when the tunnel begins to be stressed after the assembly is completed, and may also occur when the external stress conditions change after operation After excessive stress on the edges and corners

Method used

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  • Corner reinforcing member of shield tunnel duct piece and application method thereof
  • Corner reinforcing member of shield tunnel duct piece and application method thereof
  • Corner reinforcing member of shield tunnel duct piece and application method thereof

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0039] According to the background technology, it can be seen that the corner damage of shield tunnel segments is mainly related to the stress concentration at the corners. Therefore, avoiding the stress concentration at the edges and corners of the segment is the best measure to solve the damage of the edges and corners of the segment. Based on this, the present invention proposes a corner reinforcement component of a shield tunnel segment, figure 1 is shown in its side view, figure 2 for figure 1 A-A cutaway view. The corner reinforcing member of the shield tunnel segment includes an angle steel 1 whose shape matches the corner of the shield tunnel segment, an anchor rod 2 and an anchor head 3 . Wherein, one end of the anchor rod 2 is welded to the angle steel 1 , and the other end is connected to the above-mentioned anchor head 3 . In ...

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Abstract

The invention provides a corner reinforcing member of a shield tunnel duct piece and an application method thereof, and belongs to the field of shield tunnel technology. The corner reinforcing member comprises an angle steel matching a corner of a shield tunnel duct piece, an anchoring rod and an anchor head. One end of the anchoring rod is connected with the angle steel, and the other end is connected with the anchor head. The application method comprises the following steps of mounting a corner reinforcing member in a duct piece preformed die before performing a duct piece; respectively fixing the anchoring rod and the anchor head of the corner reinforcing member to steel bars of the duct piece; and injecting forming material in the duct piece preformed die to form the duct piece. The corner reinforcing member is particularly suitable for reinforcement of a corner of a shield tunnel reinforced concrete duct piece, the corner reinforcing member is formed before die casting a duct piece and arranged in the duct piece when steel bars are mounted during a duct piece die casting process, corner damage caused by overlarge local stress in a corner of the shield tunnel reinforced concrete duct piece can be prevented, and the corner reinforcing member is scientific, reasonable and low in cost.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling, and relates to a reinforcement member and a method for using the same, in particular to an edge reinforcement member and a method for using the same. Background technique [0002] In the existing shield tunnels, most shield tunnel segments are prefabricated by reinforced concrete. The edges and corners of the segment become the weakest part in the shield tunnel. Damage to the edges and corners of the shield tunnel segment may occur during the transportation and moving process before the completion of the shield tunnel construction, or it may occur when the tunnel begins to be stressed after the assembly is completed, and it may also occur when the external stress conditions change after operation After the edges and corners are overstressed. The edge damage caused by the latter two situations is very likely to occur in the compression zone of the longitudinal seam joint of the segment....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08
Inventor 周顺华黄大维肖军华季昌宫全美
Owner TONGJI UNIV
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