CN211201990U - Waterproof sealing device for bolt hole of shield tunnel segment - Google Patents
Waterproof sealing device for bolt hole of shield tunnel segment Download PDFInfo
- Publication number
- CN211201990U CN211201990U CN201921563675.1U CN201921563675U CN211201990U CN 211201990 U CN211201990 U CN 211201990U CN 201921563675 U CN201921563675 U CN 201921563675U CN 211201990 U CN211201990 U CN 211201990U
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- Prior art keywords
- bolt
- bolt hole
- gasket
- sealing
- hole
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- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 229920002943 EPDM rubber Polymers 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a shield tunnel segment bolt hole waterproof sealing device for the sealing between bolt (3) and tunnel segment (5), including bolt hole seal ring (1) and seal groove (2) two parts, its characterized in that, bolt hole seal ring (1) includes the water-swelling rubber part that is located the middle part, and gasket hole (10) is reserved in its middle part of water-swelling rubber part, gasket hole (10) size suits with bolt (3) diameter, guarantees that gasket hole (10) completely laminates bolt (3) wall; the sealing groove (2) is grooved at the position of the bolt (3) of the shield segment (5); and gasket threads (11) are distributed on the outer side wall of the bolt hole sealing gasket (1). The utility model has the advantages of the water-proof sealing effect is good.
Description
Technical Field
The utility model relates to a shield tunnel waterproof technology field, concretely relates to shield tunnel segment bolt hole waterproof sealing device.
Background
With the development of urbanization, underground spaces such as urban underground traffic, urban pipe corridors and the like are increasingly developed. Wherein shield tunnel obtains extensive application in underground space construction, and shield tunnel is by the assembled structure that section of jurisdiction and connecting bolt constitute, therefore there are transversal joint and longitudinal joint in the shaping pipe ring, when section of jurisdiction seam emergence infiltration, causes very big threat to the security of tunnel segment structure.
At present, a shield tunnel segment seam waterproof system mainly comprises two aspects: 1. a single-channel or double-channel sealing gasket waterproof system, and a segment caulking waterproof system. Wherein, sealed waterproof system of filling up mainly comprises seal groove and sealed the pad, and sealed waterproof ability is mainly greater than outside design water pressure through waterproof sealing pad compressive contact stress and judges, and when the section of jurisdiction seam takes place to open wrong platform or sealed ageing to lead to sealed pad contact stress can't satisfy design water pressure, then sealed waterproof system of filling up became invalid. The segment caulking waterproof system consists of a segment caulking groove and a sealing material, wherein the segment caulking groove is a notch formed in the inner edge of the segment, and the sealing material, such as unformed building sealant or a formed ethylene propylene diene monomer synthetic sealing element and the like, is filled in the notch, so that the water stopping and draining effects of the segment caulking are realized.
Above-mentioned shield tunnel waterproof system lacks the design to section of jurisdiction seam bolt hole stagnant water, and when section of jurisdiction seam sealed pad waterproof system became invalid, the infiltration leads to the tunnel to take place the infiltration problem along section of jurisdiction seam face inflow bolt hole to according to the statistics of the phenomenon of seeping water during tunnel operation, the discovery bolt hole position has the route of seeping water. Therefore, the engineering field needs to solve the problem of water seepage of the bolt holes of the shield tunnel segment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the problem of infiltration takes place in current shield tunnel segment bolt hole is solved, a novel shield tunnel bolt hole sealing device is provided. In order to achieve the above purpose, the utility model adopts the technical scheme that:
a waterproof sealing device for bolt holes of a shield tunnel segment is used for sealing between bolts 3 and a tunnel segment 5 and comprises a bolt hole sealing washer 1 and a sealing groove 2, and is characterized in that the bolt hole sealing washer 1 comprises a water-swelling rubber part positioned in the middle, a gasket hole 10 is reserved in the middle of the water-swelling rubber part, the size of the gasket hole 10 is matched with the diameter of the bolt 3, and the gasket hole 10 is ensured to be completely attached to the wall surface of the bolt 3; the sealing groove 2 is grooved at the position of the bolt 3 of the shield segment 5; and the outer side wall of the bolt hole sealing washer 1 is distributed with washer threads 11.
Through the above explanation, the beneficial effects of the utility model are embodied in:
1. the waterproof and anti-seepage performance is good;
2. the bonding quality of the gasket is reliable;
3. the operability is good.
Drawings
FIG. 1 is a schematic view of the installation of a waterproof sealing device for bolt holes of the present invention;
FIG. 2 is a cross-sectional view of a bolt hole sealing gasket of the waterproof sealing device for bolt holes of the present invention;
FIG. 3 is a side view of a bolt hole gasket of the waterproof sealing device for bolt holes of the present invention;
FIG. 4 is a top view of a bolt hole gasket of the waterproof sealing device for bolt holes of the present invention;
FIGS. 1 to 4 include:
1-bolt hole sealing washer
2-sealing groove
3-bolt
4-nut
5-tunnel segment
6-gasket
7-caulking
8-water swelling rubber layer
9-ethylene propylene diene monomer
10-gasket hole
11-washer thread
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The present invention will now be further described with reference to the drawings.
As shown in fig. 1, the utility model discloses when using bolt hole seal ring 1, 5 seam waterproof systems of tunnel segment include the waterproof system of sealed pad that uses sealed pad 6 to give first place to, the bolt hole waterproof system that uses bolt hole seal ring 1 to give first place to, the caulking waterproof system that uses caulking 7 to give first place to. Wherein novel shield tunnel bolt hole waterproof sealing device mainly comprises bolt hole seal ring 1 and seal groove 2, bolt hole seal ring 1 pastes on seal groove 2 surface at sealed gluey brute force, and when section of jurisdiction hand hole department construction bolt, bolt 3 passes the gasket hole 10 of bolt hole waterproof system, is fastening through nut 4 and realizes the connection between the section of jurisdiction. The design size of the bolt hole sealing washer 1 corresponds to the diameter of the bolt, so that the design size is not limited to the case, and the size suitable for actual project engineering can be determined according to actual engineering and construction site conditions.
As shown in figures 2 and 4, the bolt hole sealing washer 1 in the novel waterproof sealing device for the shield tunnel bolt hole is composed of water-swelling rubber 8 and ethylene propylene diene monomer 9, the water-swelling rubber 8 and the ethylene propylene diene monomer 9 are extruded and formed through a microwave vulcanization technology, a washer hole 10 is reserved in the middle of the bolt hole sealing washer 1, and the size of the washer hole 10 corresponds to the diameter of the bolt 3. Bolt hole seal ring 1 thickness is a little higher than 2 heights of seal groove, and bolt hole seal ring 1 compression is in seal groove 2 after tunnel segment 5 is assembled, helps strengthening bolt hole local rigidity on the one hand, and on the other hand is of value to the waterproof ability who proposes bolt hole seal ring 1 contact surface. When the sealing gasket 6 is in water-proof failure, seepage water flows through the gasket hole 10, and the water-swelling rubber 8 expands to increase the contact stress with the wall surface of the bolt 3, so that the water-proof effect is achieved.
The outside of the bolt hole sealing washer 1 is distributed with washer threads 11, such as the side view of the bolt hole sealing washer 1 shown in fig. 2, the gluing area of the side wall of the bolt hole sealing washer 1 and the sealing groove 2 is mainly increased by increasing the washer threads 11, the bolt hole sealing washer 1 is separated when the bolt 3 is not installed, and in addition, the water seepage of the outside contact surface of the bolt hole sealing washer 1 is prevented.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (1)
1. A waterproof sealing device for bolt holes of a shield tunnel segment is used for sealing between bolts (3) and a tunnel segment (5) and comprises a bolt hole sealing washer (1) and a sealing groove (2), and is characterized in that the bolt hole sealing washer (1) comprises a water-swelling rubber part positioned in the middle, a gasket hole (10) is reserved in the middle of the water-swelling rubber part, the size of the gasket hole (10) is matched with the diameter of the bolt (3), and the gasket hole (10) is ensured to be completely attached to the wall surface of the bolt (3); the sealing groove (2) is grooved at the position of the bolt (3) of the shield segment (5); and gasket threads (11) are distributed on the outer side wall of the bolt hole sealing gasket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563675.1U CN211201990U (en) | 2019-09-19 | 2019-09-19 | Waterproof sealing device for bolt hole of shield tunnel segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563675.1U CN211201990U (en) | 2019-09-19 | 2019-09-19 | Waterproof sealing device for bolt hole of shield tunnel segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211201990U true CN211201990U (en) | 2020-08-07 |
Family
ID=71862023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921563675.1U Active CN211201990U (en) | 2019-09-19 | 2019-09-19 | Waterproof sealing device for bolt hole of shield tunnel segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211201990U (en) |
-
2019
- 2019-09-19 CN CN201921563675.1U patent/CN211201990U/en active Active
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