CN213928382U - Novel water-swelling water stop strip structure - Google Patents
Novel water-swelling water stop strip structure Download PDFInfo
- Publication number
- CN213928382U CN213928382U CN202021988067.8U CN202021988067U CN213928382U CN 213928382 U CN213928382 U CN 213928382U CN 202021988067 U CN202021988067 U CN 202021988067U CN 213928382 U CN213928382 U CN 213928382U
- Authority
- CN
- China
- Prior art keywords
- water
- swelling
- rubber
- ethylene propylene
- diene monomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a novel meet water inflation sealing rod structure, whole cross-section is the square, can divide into the structure according to functional classification, and both sides are meeting water inflation sealing rod, and the centre is the EPT glue part. The water stop strip water-swelling rubber on the traditional market is wrapped on the inner side of ethylene propylene diene monomer, and when water is corroded, the water-swelling rubber basically does not work or works slowly, and when the swelling rubber is completely swelled, water penetrates into the inside of the segment. The novel water-swelling sealing rod capable of swelling when meeting water moves the swelling rubber to the two sides of the ethylene propylene diene monomer, so that the swelling rubber can timely swell when meeting water, the swelling rubber on the inner side of the segment can also timely stop water corrosion to water in a pipe, the swelling rubber arranged on the two sides can also make field construction more convenient, the inner side and the outer side of a water stopping material do not need to be distinguished, and the quality problem caused by worker error is reduced.
Description
Technical Field
The utility model relates to the technical field of the track, especially, relate to a novel water-swelling sealing rod structure meets water inflation.
Background
The concrete segment is used as the innermost protective screen of the subway tunnel, the terrain of the segment is complex, the outer side bears deep soil layer pressure, moisture erosion and other special corrosion, and the waterproof characteristic of the segment is always a problem which is very important for engineers in designing the tunnel. In present concrete segment structure, the concrete segment that mostly all is the concatenation, the concatenation department of section of jurisdiction and section of jurisdiction because the external world of year corrodes, reaches expend with heat and contract with cold effect, and joint seam department is waterproof work's weak part always.
The conventional method is to fill rubber at the joint of the duct piece, the waterproof rubber is ethylene propylene diene monomer rubber, slow-expansion water-swelling rubber and the coincidence of the two, the ethylene propylene diene monomer rubber has stronger weather resistance and stable chemical performance, but the waterproof rubber is inferior to the water-swelling rubber in waterproof performance, the water-swelling rubber has good waterproof performance, and the expansion water-stopping effect can be achieved due to the water-swelling principle. The composite rubber structure is a structure formed by combining the water-swellable rubber and the ethylene propylene diene monomer, but in the composite rubber structure on the market, the water-swellable rubber is wrapped on the inner side of the ethylene propylene diene monomer, so that when the duct piece is invaded by water, the ethylene propylene diene monomer is soaked at first, the water-swellable rubber strip does not work or has an unobvious effect, and when the water is seriously soaked and permeates the swellable rubber, the waterproof structure basically fails. A glaring application of the water-swelling rubber strip in shield segment joint water prevention is provided, water leakage is easy to occur in sections with small curve radius and large longitudinal gradient, turning of the sections is multiple, control of shield tunneling parameters and process control difficulty are large, segment dislocation and damage are difficult to avoid, large dislocation or large opening amount of joints are caused in segment assembly, effective contact surfaces are insufficient in the traditional water-stopping rubber, and the segment water leakage situation is caused.
Therefore, a novel water-swelling water stop strip structure is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a novel water-swelling water stop strip structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the novel water-swelling sealing strip structure is of a square-like shape as a whole and comprises three parts, namely ethylene propylene diene monomer, water-swelling rubber and an internal cavity, wherein the internal cavity of the ethylene propylene diene monomer is a row of the whole, so that the sealing strip has better stability and smaller distortion after meeting water; the water-swellable rubber is respectively positioned on two sides of the ethylene propylene diene monomer, one side of the water-swellable rubber faces the upstream surface of the outer side of the duct piece when the water-swellable rubber is installed on the duct piece, the other side of the water-swellable rubber faces the inner side of the duct piece, and the water-swellable rubber is in a long and narrow triangular shape.
Compared with the prior art, the beneficial effects of the utility model are that:
1. compared with the traditional water stop strip structure, the composite water stop strip has the advantages that the expansion rubber faces the upstream face, when water is invaded, the expansion water stop effect can be achieved at the first time, after the pipe pieces are spliced, the water stop strip is in an expansion state for a long time, and the water stop effect is obvious.
2. The novel water stopping structure can prevent the invasion of water outside the duct piece, when the duct piece is assembled, a larger dislocation or a larger opening amount of a joint is formed, the expansion glue on the outer side generates water leakage, the expansion rubber on the inner side of the water stopping strip can also expand in time, an expansion water stopping effect is generated, and a dual waterproof effect is achieved.
3. The expansion water stop glue is attached to the two sides of the novel structure water stop strip, the two sides can be used as the inner side and the outer side of the pipe piece when workers assemble on site, the inner side and the outer side do not need to be distinguished specially in the process of worker construction, the occurrence of misoperation of workers is omitted, and the site operation efficiency is improved.
4. The inner cavity of the ethylene propylene diene monomer is arranged in a whole row, so that the water stop strip has better stability, and the distortion is smaller after meeting water.
5. Novel rubber is because being in the inflation state constantly, under the partial big condition of section of jurisdiction seam opening volume, inflation rubber can in time carry out the inflation compensation, solves the sealed condition of leaking that can not handle when little curve radius, great vertical slope in the face of the tunnel of filling up of tradition.
Drawings
Fig. 1 is a structural cross-sectional view of a novel water-swelling water stop strip provided by the present invention;
fig. 2 is a three-dimensional schematic view of the novel water-swelling water stop structure according to the present invention after installation;
in the figure: 1 concrete segment part, 2 ethylene propylene diene monomer parts, 3 water-swelling rubber parts and 4 internal cavities.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
Referring to fig. 1, the novel water-swelling water stop strip structure comprises an Ethylene Propylene Diene Monomer (EPDM) rubber part 2, a water-swelling rubber part 3 and an internal cavity part 4, wherein the water-swelling rubber is filled in two sides of the EPDM rubber.
When the installation is carried out, the duct piece sealing gasket groove is coated with the adhesive, the sealing gasket groove is full of the adhesive, after the cooling for 10-15min, the water-swelling sealing rod is sleeved into the sealing gasket groove, and the position of the water-swelling adhesive is shown in figure 2.
When the section of jurisdiction concatenation, the water-swelling strip laminating of two sections of jurisdiction is in the same place, under the condition that produces water erosion, not only can play elasticity stagnant water effect, and water-swelling rubber can also produce inflation stagnant water effect moreover, plays dual stagnant water effect. The inboard and the outside surface of section of jurisdiction are with expanded rubber, can expand the very first time when water invades, and the section of jurisdiction is in the expanded state for a long time after the installation in addition, and the stagnant water effect is obviously higher than ordinary stagnant water strip.
In the novel structure, the two sides of the ethylene propylene diene monomer are filled with the water-swelling rubber, so that the inner side and the outer side do not need to be specially distinguished in the construction process of workers, the occurrence of misoperation of the workers is avoided, and the field operation efficiency is improved. Moreover, due to the structure, when water is invaded, the expansion rubber on the outer side can play a role in expansion and water prevention, when the water is soaked into the inner side of the rubber, the expansion rubber on the inner side can expand, the function of the double water stop is particularly realized when a duct piece is assembled to form a large staggered platform or a seam is slightly large in opening amount, and the water prevention effect is more obvious compared with the traditional water stop strip.
The above, only be the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of the present invention is equivalent to replace or change, and all should be covered within the protection scope of the present invention.
Claims (4)
1. A novel water-swelling sealing strip structure comprises ethylene propylene diene monomer (2), slowly-swelling water-swelling rubber (3), a sealing strip inner cavity (4) and a water-swelling sealing strip, wherein the water-swelling sealing strip is embedded in a sealing groove of a concrete segment (1); the water-stop pipe is characterized in that a cavity (4) is formed in the ethylene propylene diene monomer (2), the two side faces of the ethylene propylene diene monomer (2) are filled with slow-expansion type water-swelling rubber (3), and the water-stop strip is integrally embedded into a sealing groove of the concrete pipe piece (1).
2. The novel water-swelling water stop strip structure according to claim 1, wherein a cavity (4) is formed inside the ethylene propylene diene monomer (2), and the ethylene propylene diene monomer (2) has a height of 9-36mm and a width of 22.4-48mm as the case may be.
3. The novel water-swelling water stop structure according to claim 1, wherein the cavity (4) is a row of regular patterns distributed inside the ethylene propylene diene monomer, the patterns can be changed according to requirements, and the number of the patterns is one row.
4. The novel water-swelling water stop strip structure according to claim 1, wherein the slowly swelling water-swelling rubber (3) is in two rows, one is located on each side of the ethylene propylene diene monomer, the other is located on the outer side of the ethylene propylene diene monomer, the other is located on the inner side of the segment, the height of the slowly swelling water-swelling rubber (3) is 5mm, and the length of the slowly swelling water-swelling rubber (3) is 15mm toward one side of the ethylene propylene diene monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021988067.8U CN213928382U (en) | 2020-09-12 | 2020-09-12 | Novel water-swelling water stop strip structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021988067.8U CN213928382U (en) | 2020-09-12 | 2020-09-12 | Novel water-swelling water stop strip structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213928382U true CN213928382U (en) | 2021-08-10 |
Family
ID=77160999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021988067.8U Active CN213928382U (en) | 2020-09-12 | 2020-09-12 | Novel water-swelling water stop strip structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213928382U (en) |
-
2020
- 2020-09-12 CN CN202021988067.8U patent/CN213928382U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210033476U (en) | Waterproof structure for shield tunnel segment joint | |
| CN213928382U (en) | Novel water-swelling water stop strip structure | |
| CN202416256U (en) | Water-stop structure for expansion joints | |
| CN207144967U (en) | A kind of tunnel side wall waterproof structure for deformation seams | |
| CN211370437U (en) | Shield tunnel segment seam waterproof construction | |
| CN209891254U (en) | Utility tunnel movement joint waterproof construction | |
| CN208763072U (en) | A kind of submerged tunnel side wall waterproof structure for deformation seams | |
| CN113202505B (en) | Subway segment gap sealing construction process | |
| CN211474141U (en) | Seam waterproof sealing structure suitable for shield tunnel segment opening or dislocation | |
| CN114575538A (en) | Water leakage revealing type roof covering coating | |
| CN210712887U (en) | Water stop structure used between adjacent panels of underwater awning type cofferdam | |
| CN210066646U (en) | Seepage-proofing structure of hydraulic asphalt concrete panel | |
| CN217679733U (en) | Water stop strip with sealing function | |
| CN206495357U (en) | Assembled wall anticracking crack structure | |
| CN215829675U (en) | Concrete joint waterproof construction | |
| CN220953923U (en) | Waterproof pad for building outer wall | |
| CN218374056U (en) | Basement roof with construction preformed hole block structure | |
| CN219569209U (en) | Waterproof structure of outer wall transverse joint | |
| CN110778344A (en) | Shield tunnel segment seam waterproof construction | |
| CN219298484U (en) | Waterproof construction at building outer wall top | |
| CN214944292U (en) | Segment joint sealing gasket suitable for super-buried-depth shield tunnel | |
| CN220014205U (en) | Main beam section bar of sunlight house | |
| CN105369772B (en) | A kind of rubber fastening band | |
| CN216475638U (en) | Prefabricated exterior wall cladding waterproof construction | |
| CN217602445U (en) | Anti-leakage structure of building exterior window |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |