Waterproof sealing gasket, segment, segment ring and construction method that can be melted and injected multiple times

A technology of gaskets and rubber injection pipes, which is applied in earth-moving drilling, vertical well equipment, wellbore lining, etc. Effects of small stress relaxation

Active Publication Date: 2021-08-03
CHINA RAILWAY SHISIJU GROUP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the above-mentioned deficiencies, the patent of the present invention provides a water-tight sealing gasket, segment, segment ring and construction method suitable for segment joints that can be melted and injected multiple times, aiming to solve the problem of water leakage problem

Method used

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  • Waterproof sealing gasket, segment, segment ring and construction method that can be melted and injected multiple times
  • Waterproof sealing gasket, segment, segment ring and construction method that can be melted and injected multiple times
  • Waterproof sealing gasket, segment, segment ring and construction method that can be melted and injected multiple times

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[0039] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0040] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0041] For the convenience of description, if the words "up", "down", "left" and "right" appear in th...

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Abstract

The invention discloses a water-tight gasket capable of multiple melting and injection of glue, a segment, a segment ring and a construction method. The gasket that can be injected with glue includes a rubber main body, and a channel for injecting glue is arranged in the rubber main body. A hot-melt coil is provided inside the injection channel, and reserved channels are reserved on both sides of the injection channel to ensure that the rubber body can be compressed, and an expansion water-absorbing layer is arranged on the outer ring of the rubber body; There is a glue outlet connected with the glue injection channel. The glue-injectable water-tight sealing gasket is set on the inner layer of the circumferential and longitudinal joint surfaces of the segment, and the ordinary sealing gasket is normally installed on the outer layer of the joint surface. After the segment tunnel is in operation, if there is water leakage due to the decline in the water-stop performance of the outer gasket, start the glue injection water-stop procedure for the inner gasket. The high-temperature water-stopping glue is injected into the gasket channel and seeps outward along the glue outlet hole. When the temperature drops below 45°C, the liquid glue becomes solid rubber and exerts the water-stopping effect.

Description

technical field [0001] The invention belongs to the field of rail transit engineering, and in particular relates to a water-stop gasket, a segment, a segment ring and a construction method that can be melted and injected multiple times. Background technique [0002] At present, most of the segment leakage occurs at the joints of the segments. The gaps between the segments are uneven, and the local gaps are too large, so that the sealing strip cannot meet the requirements; It is loose or deformed during splicing, thus losing the sealing effect, which greatly affects the sealing effect of the gasket. [0003] After the construction of the tunnel is completed, groundwater will also seep into the tunnel due to gaps between segments due to settlement, vibration or uneven force, which will adversely affect the use and safety of the tunnel. It is difficult to treat the segment after water leakage. The treatment process often needs to destroy the structure of the segment and inject...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38E21D11/08
CPCE21D11/08E21D11/083E21D11/385E21D11/386
Inventor 王志康王军梁尔斌李克金李秀东陈健谭相波刘四进赵佩坤李勋
Owner CHINA RAILWAY SHISIJU GROUP CORP
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