Water-stop sealing gasket capable of being melted and injected with glue for multiple times, duct piece, duct piece ring and construction method
A technology of sealing gasket and rubber injection pipe, which is applied in earth-moving drilling, wellbore lining, tunnel lining, etc., can solve problems such as water leakage at the joints of segments, reduce the loss of manpower and material resources, and achieve good sealing effect.
Active Publication Date: 2021-02-05
CHINA RAILWAY SHISIJU GROUP CORP +1
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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
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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 is intended to include the plural, and it should also be understood that when the terms "comprise" and / or "comprise" are used in this specification, they mean 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 the present invention, it ...
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The invention discloses a water-stop sealing gasket capable of being melted and injected with glue for multiple times, a duct piece, a duct piece ring and a construction method. The sealing gasket capable of being injected with glue comprises a rubber main body, wherein a glue injection hole channel is formed in the rubber main body, a hot melting coil is arranged in the glue injection hole channel, reserved hole channels capable of ensuring that the rubber main body is compressible are reserved in the two sides of the glue injection hole channel, and an expansion water absorption layer is arranged on an outer ring of the rubber main body; and the rubber main body is also provided with a glue outlet hole communicated with the glue injection hole channel. The water-stop sealing gasket capable of being injected with glue is arranged on an inner layer of an annular and longitudinal joint surface of a segment, and a common sealing gasket is normally arranged on an outer layer of the jointsurface. After a segment tunnel operates, if water leakage occurs due to the fact that the water stopping performance of the outer-layer sealing gasket is reduced, an inner-layer sealing gasket glue injection and water stopping program is started. High-temperature water stop glue is injected into a sealing gasket channel and seeps outwards along the glue outlet hole, and when the temperature is reduced to 45 DEG C or below, the liquid glue becomes solid rubber, and the water stop effect is achieved.
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...
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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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