CN103526776B - Towards immersed tube tunnel rubber fastening band hardness layered approach and rubber fastening band thereof - Google Patents
Towards immersed tube tunnel rubber fastening band hardness layered approach and rubber fastening band thereof Download PDFInfo
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- CN103526776B CN103526776B CN201310480873.2A CN201310480873A CN103526776B CN 103526776 B CN103526776 B CN 103526776B CN 201310480873 A CN201310480873 A CN 201310480873A CN 103526776 B CN103526776 B CN 103526776B
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Abstract
The invention discloses a kind of towards immersed tube tunnel rubber fastening band hardness layered approach, according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof, rubber fastening band is divided into multiple functional architecture unit, then according to the concrete stressing conditions of each functional architecture unit and the effect played thereof, the hardness matched is set to corresponding functional architecture unit, the hardness of each functional architecture unit and effect are matched, add autgmentability and the reliability of rubber fastening band, expand the scope of application of rubber fastening band; Immersed tube tunnel rubber fastening band, compared with existing design, to be describedly designed to effect and hardness towards immersed tube tunnel rubber fastening band hardness layered approach and to match each element of construction by the present invention, adds autgmentability and the reliability of rubber fastening band; And need to be optimized design to the hardness of rubber fastening band distribution size and distribution height according to actual condition, add the scope of application of immersed tube tunnel rubber fastening band.
Description
Technical field
The performance that the present invention relates to the waterproof part in a kind of engineering structure is improved one's methods and waterproof part after improving, and the hardness specifically relating to a kind of rubber fastening band towards immersed tube tunnel is improved one's methods and rubber fastening band after improving.
Background technology
Immersed tunnelling method is a kind of novel construction method building submerged tunnel grown up 20 beginnings of the century, and along with the trouble-free operation of domestic and international immersed tube tunnel, immersed tunnelling method has become the first-selected engineering method that submerged tunnel is built.Immersed tube tunnel under water joint is the core place of immersed tube tunnel construction technology, its operating characteristic and effect will directly affect quality and the application life of immersed tube tunnel, GINA rubber fastening band is generally used as the first waterproof of joint, seems particularly important to its normal working performance analysis.Each pipeline section of immersed tube tunnel is a prefabricated component, between pipeline section and between pipeline section and aeration tower, there is joint.Tunnel joint is the significant points of immersed tube tunnel, is also weak part simultaneously, and its structural strength mixed earth relative to rigidity all seems very fragile.Joint is generally divided into two kinds of forms: a kind of joint has and is connected similar section Rigidity and strength---the rigid joint of pipeline section with it; Another kind of joint then allows there is relative displacement on three major axes orientations---flexible joint.At present, domestic and international immersed tube tunnel many employings flexible joint, the water-proof system of flexible joint generally adopts the mode of " compression rubber fastening band (GINA rubber fastening band)+lining type rubber fastening band (OMEGA rubber fastening band) " bilayer combination.Conventional immersed tube tunnel tube coupling joint design section as shown in Figure 3, conventional immersed tube tunnel with the structure of rubber fastening band 5 as shown in Figure 2, as can be seen from the figure the main composition characteristic of conventional immersed tube tunnel rubber fastening band 5 comprises tip, main body and bottom, and each functional architecture unit of rubber fastening band adopts same hardness sizing material, nose is mainly used in compressive strain; Mid-section body is mainly used in carrying, shears and compression; Bottom is mainly used in carrying.
Hermetic seal problem between immersed tube tunnel tube coupling, relates to the reliability of immersed tube tunnel rubber fastening band, and can become tunnel the crucial corner of trouble-free operation.At present, GINA waterstop for immersed tube tunnel first floor waterproof generally adopts single durometer rubber sulfuration to form, consider that GINA waterstop runs whole process from being installed to, each functional architecture unit of GINA waterstop has its special performance, nose is mainly used in compression, mid-section body is mainly used in carrying, shears and compression, bottom is mainly used in carrying, therefore adopt single durometer rubber mated hardness can not be set needed for effect of each functional architecture unit, there is certain limitation.Also do not have related art scheme can improve this defect at present.
Because rubber fastening band is in use not limited to carrying, also should have compressive strain and shearing function, but the rubber fastening band used in current immersed tube tunnel project is all single hardness, therefore has significant limitation.In this case, one can arrange its coupling sizing material hardness needed for each functional architecture unit effect of GINA waterstop, thus the hardness layered approach strengthening GINA waterstop sealing and reliability just seems very urgent and important, by adopting hardness layering, structure and fuction is carried out Optimum Matching, make rubber fastening band reliability, security performance higher, application life is more of a specified duration.
Summary of the invention
The object of the invention is to adopt single durometer rubber for current immersed tube tunnel rubber fastening band and the confinement problems that exists, a kind of hardness layered approach towards arranging its coupling sizing material hardness needed for each functional architecture unit effect of immersed tube tunnel rubber fastening band is provided.Adopt the method for hardness layering that the structure and fuction of rubber fastening band is optimized coupling, make the reliability of rubber fastening band, security performance higher, longer service life.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of towards immersed tube tunnel rubber fastening band hardness layered approach, according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof, rubber fastening band is divided into multiple functional architecture unit, then according to the concrete stressing conditions of each functional architecture unit and the effect played thereof, the hardness matched is set to corresponding functional architecture unit, the hardness of each functional architecture unit and effect are matched, add autgmentability and the reliability of rubber fastening band, expand the scope of application of rubber fastening band.
In the present invention, according to the stressing conditions of rubber fastening band in actual condition, rubber fastening band is divided into nose, mid-section body and three, bottom functional architecture unit; Described nose fully contacts mainly through the compressive strain of self realize hermetic seal effect with sealing surface, and therefore the hardness of described nose is minimum; Described bottom is mainly used in carrying, and the external force of bearing is maximum, and therefore the hardness of described bottom is maximum; Described mid-section body is mainly used in carrying, shears and compression, and between the external force that the external force of bearing is born at described nose and bottom, therefore the hardness of described mid-section body is arranged between described nose and the hardness of bottom, and namely the hardness of described mid-section body is placed in the middle; Nose, hardness distribution proportion between mid-section body and three, bottom functional architecture unit are 1: 1.25 ~ 1.5: 1.5 ~ 1.85.By above hardness layered approach, according to actual condition, the hardness matched with its function is set to each functional architecture unit of rubber fastening band, add autgmentability and the reliability of rubber fastening band, improve the security performance of rubber fastening band, extend the application life of rubber fastening band, expand the scope of application of rubber fastening band.
In the present invention, described rubber fastening band nose hardness be shore 40 ± 5 degree; The hardness of described rubber fastening band mid-section body is shore 50 ± 5 degree; Hardness bottom described rubber fastening band is shore 60 ± 5 degree.
The present invention also provides a kind of rubber fastening band designed and developed according to above-mentioned hardness layered approach, comprise multiple functional architecture unit, each functional structure carries out distinguishing according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof arranging; Each described functional architecture unit arranges according to himself concrete stressing conditions and the effect played thereof the hardness matched, the hardness of each functional architecture unit and effect are matched, add autgmentability and the reliability of rubber fastening band, expand the scope of application of rubber fastening band.
In the present invention, described functional architecture unit is three, is respectively nose, mid-section body and bottom; Described nose is followed sealing surface fully to contact by the compressive strain of self and is realized hermetic seal effect, and the external force of bearing is minimum; Described bottom is mainly used in carrying, and the external force of bearing is maximum; Described mid-section body is mainly used in carrying, shears and compression, between the external force that the external force of bearing is born at described nose and bottom.
In this present invention, the hardness of described nose is minimum; The hardness of described bottom is maximum; The hardness of described mid-section body is arranged between described nose and the hardness of bottom.
In the present invention, described nose, hardness distribution proportion between mid-section body and three, bottom functional architecture unit are 1: 1.25 ~ 1.5: 1.5 ~ 1.85.
In the present invention, described rubber fastening band nose hardness be shore 40 ± 5 degree; The hardness of described rubber fastening band mid-section body is shore 50 ± 5 degree; Hardness bottom described rubber fastening band is shore 60 ± 5 degree.
In the present invention, described mid-section body is provided with a manhole, improves the distortion load resistant power of described mid-section body.
Described in the present invention towards immersed tube tunnel rubber fastening band hardness layered approach compared with existing design, describedly immersed tube tunnel rubber fastening band is designed to effect and hardness towards immersed tube tunnel rubber fastening band hardness layered approach and matches each element of construction, add autgmentability and the reliability of rubber fastening band; And need to be optimized design to the hardness of rubber fastening band distribution size and distribution height according to actual condition, add the scope of application of immersed tube tunnel rubber fastening band.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of conventional immersed tube tunnel rubber fastening band;
Fig. 3 is conventional immersed tube tunnel tube coupling joint design sectional schematic diagram.
In figure: 1. nose, 2. manhole, 3. mid-section body, 4., 5. conventional immersed tube tunnel rubber fastening band.
Detailed description of the invention
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
As shown in drawings, embodiment one, a kind of towards immersed tube tunnel rubber fastening band hardness layered approach, according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof, rubber fastening band is divided into multiple functional architecture unit, then according to the concrete stressing conditions of each functional architecture unit and the effect played thereof, the hardness matched is set to corresponding functional architecture unit, the hardness of each functional architecture unit and effect are matched, add autgmentability and the reliability of rubber fastening band, expand the scope of application of rubber fastening band.
In the present invention, according to the stressing conditions of rubber fastening band in actual condition, rubber fastening band is divided into nose, mid-section body and three, bottom functional architecture unit; Nose fully contacts mainly through the compressive strain of self realize hermetic seal effect with sealing surface, and therefore the hardness of nose is minimum; Bottom is mainly used in carrying, and the external force of bearing is maximum, and therefore the hardness of bottom is maximum; Mid-section body is mainly used in carrying, shears and compression, and between the external force that the external force of bearing is born at nose and bottom, therefore the hardness of mid-section body is arranged between nose and the hardness of bottom, and namely the hardness of mid-section body is placed in the middle; Nose, hardness distribution proportion between mid-section body and three, bottom functional architecture unit are 1: 1.25 ~ 1.5: 1.5 ~ 1.85.By above hardness layered approach, according to actual condition, the hardness matched with its function is set to each functional architecture unit of rubber fastening band, add autgmentability and the reliability of rubber fastening band, improve the security performance of rubber fastening band, extend the application life of rubber fastening band, expand the scope of application of rubber fastening band.
Embodiment two, is with the difference of embodiment one, rubber fastening band nose hardness be shore 40 ± 5 degree; The hardness of rubber fastening band mid-section body is shore 50 ± 5 degree; Hardness bottom rubber fastening band is shore 60 ± 5 degree.
As shown in Figure 2, embodiment three, a kind of rubber fastening band of hardness layering, comprises three functional architecture unit, be respectively nose 1, mid-section body 3 and bottom 4, each functional structure carries out distinguishing according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof arranging; Nose 1 is followed sealing surface fully to contact by the compressive strain of self and is realized hermetic seal effect, and the external force of bearing is minimum; Bottom 4 is mainly used in carrying, and the external force of bearing is maximum; Mid-section body 3 is mainly used in carrying, shears and compression, and between the external force that the external force of bearing is born at nose 1 and bottom 4, therefore the hardness of nose 1 is minimum; The hardness of bottom 4 is maximum; The hardness of mid-section body 3 is arranged between the hardness of nose 1 and bottom 4; Nose 1, hardness distribution proportion between mid-section body 3 and 4 three, bottom functional architecture unit are 1: 1.25 ~ 1.5: 1.5 ~ 1.85, each functional architecture unit arranges according to himself concrete stressing conditions and the effect played thereof the hardness matched, the hardness of each functional architecture unit and effect are matched, add autgmentability and the reliability of rubber fastening band, expand the scope of application of rubber fastening band.
Embodiment four, is with the difference of embodiment three, rubber fastening band nose 1 hardness be shore 40 ± 5 degree; The hardness of rubber fastening band mid-section body 3 is shore 50 ± 5 degree; Bottom rubber fastening band, the hardness of 4 is shore 60 ± 5 degree.
Embodiment five, is with the difference of embodiment three, four, mid-section body 3 is provided with a manhole 2, improves the distortion load resistant power of mid-section body 3.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. one kind towards immersed tube tunnel rubber fastening band hardness layered approach, it is characterized in that: according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof, rubber fastening band is divided into multiple functional architecture unit, then according to the concrete stressing conditions of each functional architecture unit and the effect played thereof, the hardness matched is set to corresponding functional architecture unit, the hardness of each functional architecture unit and effect are matched; According to the stressing conditions of rubber fastening band in actual condition, rubber fastening band is divided into nose, mid-section body and three, bottom functional architecture unit; Described nose fully contacts mainly through the compressive strain of self realize hermetic seal effect with sealing surface, and therefore the hardness of described nose is minimum; Described bottom is mainly used in carrying, and the external force of bearing is maximum, and therefore the hardness of described bottom is maximum; Described mid-section body is mainly used in carrying, shears and compression, and between the external force that the external force of bearing is born at described nose and bottom, therefore the hardness of described mid-section body is arranged between described nose and the hardness of bottom, and namely the hardness of described mid-section body is placed in the middle; By above hardness layered approach, according to actual condition, the hardness matched with its function is set to each functional architecture unit of rubber fastening band, add autgmentability and the reliability of rubber fastening band, improve the security performance of rubber fastening band, extend the application life of rubber fastening band, expand the scope of application of rubber fastening band; Described nose, hardness distribution proportion between mid-section body and three, bottom functional architecture unit are 1: 1.25 ~ 1.5: 1.5 ~ 1.85; The hardness of rubber fastening band nose is shore 40 ± 5 degree; The hardness of rubber fastening band mid-section body is shore 50 ± 5 degree; Hardness bottom rubber fastening band is shore 60 ± 5 degree.
2. a rubber fastening band for hardness layering, is characterized in that: comprise multiple functional architecture unit, and each functional architecture unit carries out distinguishing according to the stressing conditions of rubber fastening band in actual condition and the effect played thereof arranging; Each described functional architecture unit arranges according to himself concrete stressing conditions and the effect played thereof the hardness matched, the hardness of each functional architecture unit and effect are matched, add autgmentability and the reliability of rubber fastening band, expand the scope of application of rubber fastening band; Described functional architecture unit is three, is respectively nose, mid-section body and bottom; Described nose is followed sealing surface fully to contact by the compressive strain of self and is realized hermetic seal effect, and the external force of bearing is minimum; Described bottom is mainly used in carrying, and the external force of bearing is maximum; Described mid-section body is mainly used in carrying, shears and compression, between the external force that the external force of bearing is born at described nose and bottom; The hardness of described nose is minimum; The hardness of described bottom is maximum; The hardness of described mid-section body is arranged between described nose and the hardness of bottom; Described nose, hardness distribution proportion between mid-section body and three, bottom functional architecture unit are 1: 1.25 ~ 1.5: 1.5 ~ 1.85; Described mid-section body is provided with a manhole, improves the distortion load resistant power of described mid-section body; The hardness of rubber fastening band nose is shore 40 ± 5 degree; The hardness of rubber fastening band mid-section body is shore 50 ± 5 degree; Hardness bottom rubber fastening band is shore 60 ± 5 degree.
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| CN104912102B (en) * | 2015-04-24 | 2018-01-30 | 中交公路规划设计院有限公司 | A kind of curved section tube coupling joint |
| CN109372544A (en) * | 2018-11-28 | 2019-02-22 | 中铁隧道集团二处有限公司 | Tunneltron internode sealing structure and its construction method |
| CN110593324A (en) * | 2019-09-24 | 2019-12-20 | 株洲时代新材料科技股份有限公司 | Waterstop for immersed tube tunnel and method for limiting drawing and shaking of immersed tube |
| CN112632659A (en) * | 2020-12-08 | 2021-04-09 | 株洲时代新材料科技股份有限公司 | Analysis method for GINA waterstop for immersed tunnel |
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| JP2911745B2 (en) * | 1994-05-11 | 1999-06-23 | 住友ゴム工業株式会社 | Connection structure of submerged tunnel |
| NL1005140C2 (en) * | 1997-01-30 | 1998-08-03 | Trelleborg Bakker B V | Sealing profile for tunnel segments and tunnel, provided with such sealing profiles. |
| JP4074848B2 (en) * | 2003-11-17 | 2008-04-16 | 住友ゴム工業株式会社 | Junction box junction structure |
| CN203066121U (en) * | 2013-02-27 | 2013-07-17 | 株洲时代新材料科技股份有限公司 | Camelback rubber waterstop for immersed tube tunnel |
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