CN201802412U - Waterproof silicone rubber seal gasket of thermal shield tunnel segment - Google Patents
Waterproof silicone rubber seal gasket of thermal shield tunnel segment Download PDFInfo
- Publication number
- CN201802412U CN201802412U CN2010201041330U CN201020104133U CN201802412U CN 201802412 U CN201802412 U CN 201802412U CN 2010201041330 U CN2010201041330 U CN 2010201041330U CN 201020104133 U CN201020104133 U CN 201020104133U CN 201802412 U CN201802412 U CN 201802412U
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- CN
- China
- Prior art keywords
- silicone rubber
- tunnel
- waterproof
- rubber seal
- seal gasket
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a waterproof silicone rubber seal gasket of a thermal shield tunnel segment, which belongs to the field of underground tunnel construction materials. The waterproof silicone rubber seal gasket is a hot vulcanization silicone rubber waterproof sealing strip used for joint seams of shield-method thermal tunnel lining segments, is applied as the main waterproof material of the shield tunnel to directly prevent the leakage of the underground water into the tunnel. The waterproof silicone rubber seal gasket is strip-shaped and has a trapezoid-shaped cross section of which the upper layer is an elastic waterproof layer and the lower layer is an adhesive transition layer, and stress adjustment holes are arranged in the elastic waterproof layer. The upper elastic waterproof layer of the trapezoid-shaped cross section is made of vulcanized silicone rubber. The number and the size of the stress adjustment holes are adjusted according to the actual needs, and optionally, the stress adjustment holes are not needed. The stress adjustment holes are processed in frame shape in the length direction according to the size of the segment and adhesively mounted to the grooves of the segment.
Description
One, technical field
The utility model relates to a kind of heating power duct pieces of shield tunnel waterproof silicone rubber seal pad, tunnel construction engineering material field under its possession, it is a kind of shield method heating power tunnel lining segment seam heat vulcanized silicone rubber water-proof sealing strip, be the main waterproofing materials of shield tunnel, directly prevent underground water seepage in the tunnel.
Two, background technology
The main at present construction of adopting in China heating power tunnel is cut and cover method and shallow burial hidden digging, and speed of application is slow, and shotcrete dust is many, and labour intensity is big, and mechanization degree is not high, and is big to the pollution of surrounding enviroment.
Compare, the mechanization and the automaticity of shield tunnel construction are higher, and especially working security has remarkable advantages.Extensive use in shield Method at home the tunnel constructions such as city underground, highway tunnel, railway tunnel, ejectment water tunnel at present, but be not applied to the heating power tunnel, main cause wants to have following significant environmental quality for other tunnels for the heating power tunnel, has directly hindered the application of shield method in heating power tunnel construction construction:
1. temperature height in the tunnel: temperature under the normal condition: 60-70 ℃
Sporadic high temperature: 140-160 ℃ (about at every turn 2-3 hour)
2. high humidity in the tunnel: 60%-70%
3. side hydraulic pressure is big outside the tunnel: minimum 0.2Mpa
Relative other tunnels, heating power tunnel internal ambient conditions will be more abominable, and hot and humid environment is that the effective use stable and waterproofing materials of the agent structure in tunnel is had higher requirement.Other shield tunnel lining segment seams only limit to adopt ethylene propylene diene rubber and neoprene with water-proof sealing strip at present, and the shield tunnel lining segment seam that ethylene propylene diene rubber and neoprene are made uses its heat resistance of water-proof sealing strip and application life far below heat vulcanized silicone rubber.
Development along with the city, for reducing the heating power constructing tunnel to the influence of urban environment and all multifactor considerations such as safe, efficient, China part metropolis (as Beijing, Shanghai) intends adopting shield method to carry out the construction in heating power tunnel, and has entered design and experimental stage.The heating power tunnel is because its special requirement and environmental quality have proposed new requirement, at present domestic research and development and the production application that does not have ripe heating power tunneling shield segment joint rubber waterproof material to the water-proof sealing strip of shield duct piece seam.
Extensive use in shield Method at home the tunnel constructions such as city underground, highway tunnel, railway tunnel, ejectment water tunnel at present, but be not applied to the heating power tunnel.Relative other tunnels, heating power tunnel internal ambient conditions is more abominable, and hot and humid environment is that the agent structure stability in tunnel and effective use of waterproofing materials etc. are had higher requirement.Other shield tunnel lining segment seams only limit to adopt ethylene propylene diene rubber and neoprene with water-proof sealing strip at present, structure is substantially based on porous type, the shield tunnel lining segment seam that ethylene propylene diene rubber and neoprene are made uses its heat resistance of water-proof sealing strip and application life far below heat vulcanized silicone rubber, has directly hindered the application of shield method in heating power tunnel construction construction.Temperature height in the tunnel: temperature under the normal condition: 60-70 ℃, sporadic high temperature: 140-160 ℃ (about at every turn 2-3 hour); High humidity in the tunnel: 60%-70%; Side hydraulic pressure is big outside the tunnel: minimum 0.2Mpa.Therefore original shield duct piece weather strip can not satisfy instructions for use.
Three, summary of the invention
The objective of the invention is to adopt the section of jurisdiction water-tight of shield construction and the heating power duct pieces of shield tunnel waterproof silicone rubber seal pad that designs at heat distribution pipeline.
The purpose of this utility model is achieved like this: it is shaped as strip, and its cross section structure profile is trapezoidal, and the upper strata, cross section is an elastic waterproof layer, and cross section lower floor is bonding transition zone, is provided with the stress adjustment hole in elastic waterproof layer; The material of upper strata, trapezoid cross section elastic waterproof layer is a sulphurated siliastic.
The heating power duct pieces of shield tunnel waterproof silicone rubber seal pad that the utility model provides, its advantage is: 1, silastic material has solved the damp and hot environmental requirement in heating power tunnel, than more environmental protection such as ethylene propylene diene rubber, neoprenes; 2, increased bonding plane with the section of jurisdiction groove on the structure design, the adhesion promoting layer of design adopts one-shot forming technique, has fundamentally solved silicon rubber and has been difficult to bonding technical barrier; 3, the number in aperture and hole can arbitrarily be adjusted according to engineering design.
Four, description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Five, specific implementation
With reference to accompanying drawing, the utility model heating power duct pieces of shield tunnel waterproof silicone rubber seal pad, it is shaped as strip, its cross section structure profile is trapezoidal (1), the upper strata, cross section is an elastic waterproof layer, cross section lower floor is bonding transition zone (2), is provided with stress adjustment hole (3) in elastic waterproof layer, and the material of trapezoidal (1) upper strata, cross section elastic waterproof layer is a sulphurated siliastic.
Claims (2)
1. heating power duct pieces of shield tunnel waterproof silicone rubber seal pad, it is characterized in that: it is shaped as strip, and its cross section structure profile is trapezoidal (1), and the upper strata, cross section is an elastic waterproof layer, cross section lower floor is bonding transition zone (2), is provided with stress adjustment hole (3) in elastic waterproof layer.
2. heating power duct pieces of shield tunnel waterproof silicone rubber seal pad as claimed in claim 1 is characterized in that: the material of trapezoidal (1) upper strata, cross section elastic waterproof layer is a sulphurated siliastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201041330U CN201802412U (en) | 2010-01-27 | 2010-01-27 | Waterproof silicone rubber seal gasket of thermal shield tunnel segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201041330U CN201802412U (en) | 2010-01-27 | 2010-01-27 | Waterproof silicone rubber seal gasket of thermal shield tunnel segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802412U true CN201802412U (en) | 2011-04-20 |
Family
ID=43871917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201041330U Expired - Fee Related CN201802412U (en) | 2010-01-27 | 2010-01-27 | Waterproof silicone rubber seal gasket of thermal shield tunnel segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444409A (en) * | 2011-12-29 | 2012-05-09 | 同济大学 | Elastic sealing pad for sealing seams among shield tunnel pipe segments by utilizing water pressure |
| CN107165645A (en) * | 2017-07-24 | 2017-09-15 | 中铁隧道股份有限公司 | Major diameter slurry shield tunnel originates portal sealing device |
| CN108952777A (en) * | 2018-09-21 | 2018-12-07 | 中铁第四勘察设计院集团有限公司 | A kind of novel combined waterproof sealing gasket of shield tunnel |
-
2010
- 2010-01-27 CN CN2010201041330U patent/CN201802412U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444409A (en) * | 2011-12-29 | 2012-05-09 | 同济大学 | Elastic sealing pad for sealing seams among shield tunnel pipe segments by utilizing water pressure |
| CN107165645A (en) * | 2017-07-24 | 2017-09-15 | 中铁隧道股份有限公司 | Major diameter slurry shield tunnel originates portal sealing device |
| CN107165645B (en) * | 2017-07-24 | 2023-08-15 | 中铁隧道股份有限公司 | Major diameter slurry shield tunnel starts entrance to a cave sealing device |
| CN108952777A (en) * | 2018-09-21 | 2018-12-07 | 中铁第四勘察设计院集团有限公司 | A kind of novel combined waterproof sealing gasket of shield tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |