Segment caulking plugging structure and plugging process

A segment and process technology, which is applied in the field of segment caulking sealing structure and plugging process, can solve the problems of groundwater seepage, segment displacement, dislocation, affecting the waterproof effect of caulking, etc., so as to improve the waterproof performance. Effect

Pending Publication Date: 2021-11-02
北京隧盾市政建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the displacement and dislocation between adjacent segments are very easy to occur, which makes the width and position of the caulking change. New gaps, but the original sealing grouting is completely ineffective, groundwater is easy to seep from the caulking, seriously affecting the waterproof effect of the caulking

Method used

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  • Segment caulking plugging structure and plugging process
  • Segment caulking plugging structure and plugging process
  • Segment caulking plugging structure and plugging process

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Embodiment Construction

[0040] The following is attached Figure 1-3 The application is described in further detail.

[0041] The embodiment of the present application discloses a segment caulking sealing structure.

[0042] refer to figure 1 and figure 2 The segment caulking sealing structure includes a waterproof rubber strip 4 arranged between the segment 5 and the inner wall 1 of the tunnel, the waterproof rubber strip 4 is located at the caulking 8 between adjacent segments 5, and the waterproof rubber strip 4 is close to the tunnel One side of the inner wall 1 is provided with a water-swellable strip 3 , and the segment 5 is provided with a grouting hole 51 .

[0043] refer to figure 1There is a sealing groove 81 at the end of the caulking 8 close to the inner wall 1 of the tunnel, the length of the sealing groove 81 is the same as that of the caulking 8, and the two sides of the sealing groove 81 are symmetrically set on two adjacent segments 5, sealing The width of the opening of the gr...

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Abstract

The invention relates to the field of tunnel segment construction, in particular to a segment caulking plugging structure and a plugging process. The segment caulking plugging structure comprises a waterproof adhesive tape, wherein the waterproof adhesive tape is tightly arranged between a segment and the inner wall of a tunnel, both sides of the waterproof adhesive tape extend towards both sides of a caulking respectively, a sealing groove is formed in the end, close to the inner wall of the tunnel, of the caulking, the middle of the waterproof adhesive tape is bent towards the side close to the sealing groove to form a protrusion, the protrusion is tightly attached to the interior of the sealing groove, a groove is formed in the protrusion, a water swelling strip is arranged in the groove and is tightly attached to the interior of the groove, the side, away from the segment, of the water swelling strip is tightly abutted with the inner wall of the tunnel, and polyurethane sealants fills up the space between the water swelling strip and the inner wall of the groove as well as the space between the water swelling strip and the inner wall of the tunnel as well as the space between the waterproof adhesive tape and the inner wall of the tunnel. The segment caulking plugging structure has the effects that the phenomenon that underground water seeps from the caulking is reduced, and the waterproof performance of the caulking is improved.

Description

technical field [0001] The present application relates to the field of tunnel segment construction, in particular to a segment caulking sealing structure and a sealing process. Background technique [0002] With the construction and operation of a large number of tunnels, the problem of tunnel settlement, especially uneven settlement, has gradually emerged, and groundwater is the main reason for the problem of uneven settlement of tunnels. The lining of the tunnel generally adopts a segment structure, and the waterproof effect of the segment itself is good, but the caulking between adjacent segments after the segments are assembled becomes the weak position of the tunnel waterproofing, which easily causes water leakage. [0003] The traditional treatment method is to seal and grout the caulking, so as to seal the inside of the caulking. However, the displacement and dislocation between adjacent segments are very easy to occur, which makes the width and position of the caulk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08E21D11/38E21D11/10
CPCE21D11/083E21D11/386E21D11/10
Inventor 刘亮张连军王常青
Owner 北京隧盾市政建设有限公司
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