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Waterproof anchoring structure

An anchoring and structural technology, applied in the direction of installation of anchor rods, shaft equipment, wellbore lining, etc., can solve the problems of affecting the stability of geotextile sticking, affecting the stability of sticking, and detachment of geotextiles

Pending Publication Date: 2022-05-10
重庆交通大学工程设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the geotextile is laid by gluing, in the actual laying process, because the geotextile is elastic, during the laying process, other positions of the geotextile that are not pasted on the inner wall of the tunnel will generate tension and apply to the geotextile. The position where the cloth has been pasted will easily cause the geotextile to be separated from the inside of the tunnel, which will affect the stability of the pasting
And because the inner wall of the tunnel is made of concrete, there are relatively many dust attachments on the surface, which will further affect the stability of the geotextile paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to figure 1 The waterproof anchoring structure includes a geotextile 1 and a waterproof board 2 sequentially arranged from the inner wall of the tunnel outward, and a plurality of geotextiles 1 and waterproof boards 2 are provided and cover the inner wall of the tunnel. The geotextile 1 is pierced with an anchor component for fixing it to the inner wall of the tunnel.

[0038] The anchor assembly includes a backing plate 3 and an anchor 4 arranged between the geotextile 1 and the waterproof board 2. The anchor 4 is penetrated through the geotextile 1 and inserted into the inner wall of the tunnel, so as to connect the geotextile 1 and the backing plate 3 Fixed connection to the inner wall of the tunnel.

[0039] Specifically, the backing plate 3 is made of hot-melt sealing material, such as EVA plastic, HDPE and other hot-melt plastics. The middle part of the backing plate 3 is recessed toward the inner wall of the tunnel to form a recessed part 31 , the recesse...

Embodiment 2

[0044] refer to figure 2 and image 3 The difference between this embodiment and Embodiment 1 is that the anchor 4 has a rod-shaped structure, and one end of the anchor 4 inserted into the inner wall of the tunnel has a tapered structure, and the end of the anchor 4 located outside the inner wall of the tunnel is T-shaped. And the big end is pressed into the concave portion 31 of the backing plate 3 .

[0045] An anchoring hole 41 extending along the length direction of the anchoring piece 4 is provided inside, and one end of the anchoring hole 41 facing the outer side of the inner wall of the tunnel is opened. An adhesive box 42 is disposed in the anchor hole 41 , and the inside of the adhesive box 42 is hollow and filled with compressed temperature-resistant structural glue. Wherein, the anchor hole 41 is also provided with an extrusion component 5 that extrudes the structural glue in the adhesive box body 42 when heated. The extrusion component 5 is located on the side o...

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Abstract

The invention relates to the field of tunnel waterproof structures, in particular to a waterproof anchoring structure which comprises geotechnical cloth attached to the inner wall of a tunnel and is characterized by further comprising at least two waterproof plates arranged on the outer side of the geotechnical cloth and an anchoring assembly used for fixedly arranging the geotechnical cloth on the inner wall of the tunnel. The anchoring assembly comprises a base plate attached to the outer side of the geotechnical cloth and an anchoring part penetrating through the geotechnical cloth and the base plate, the anchoring part is inserted and fixedly connected to the inner wall of the tunnel, the middle of the base plate is sunken to form a sunken part, and the anchoring part penetrates through the sunken part and is inserted into the inner wall of the tunnel. And the base plate is made of a hot melting sealing material and is used for sealing the part, penetrating through the concave part, of the anchoring part. The stability of the geotechnical cloth attached to the tunnel can be effectively improved.

Description

technical field [0001] The present application relates to the field of tunnel waterproof structures, in particular to a waterproof anchoring structure. Background technique [0002] A tunnel is a traffic engineering building built in the ground, and it is a traffic engineering used to reduce walking paths and save time. However, when tunnels are built in mountains or underwater strata, due to groundwater in the strata and when it rains, there will be water leakage in the tunnel, which will threaten the safety of driving in the tunnel. [0003] In order to solve the problem of tunnel water leakage, it is often used to lay geotextiles on the inner wall of the tunnel after the first lining of the tunnel is completed, and then make a secondary lining on the outside of the waterproof board, and use geotextiles to eliminate water seepage around the tunnel and reduce the external water pressure on the lining. and water seepage around buildings. In the prior art, the laying of geo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E21D20/02E21D11/38
CPCE21D21/0026E21D20/02E21D11/38
Inventor 陈伟杨婷夏念李旭
Owner 重庆交通大学工程设计研究院有限公司
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