CN210370715U - Leakage-proof structure for tunnel deformation joint - Google Patents
Leakage-proof structure for tunnel deformation joint Download PDFInfo
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- CN210370715U CN210370715U CN201921282155.3U CN201921282155U CN210370715U CN 210370715 U CN210370715 U CN 210370715U CN 201921282155 U CN201921282155 U CN 201921282155U CN 210370715 U CN210370715 U CN 210370715U
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Abstract
The utility model provides a tunnel movement joint antiseep structure, relates to tunnel construction technical field, including fixed frame, set up geotechnological cloth, waterproof board and the barrier film in the delivery port department of movement joint in proper order range upon range of setting up, it is range upon range of geotechnological cloth the waterproof board and the both sides of barrier film are all through bonding tape sealing connection, geotechnological cloth the waterproof board and the barrier film forms waterproof component, fixed frame encloses to be located waterproof component's surface just is used for with tunnel fixed connection. The anti-leakage structure for the tunnel deformation joint can improve the overall stability of the anti-leakage structure for the tunnel deformation joint.
Description
Technical Field
The utility model relates to a tunnel construction technical field particularly, relates to a tunnel movement joint seepage prevention structure.
Background
With the development of society, more and more tunnels with reinforced concrete structures enter people's lives, and in order to avoid the tunnel structures from being damaged due to deformation, a deformation joint which penetrates from top to bottom needs to be arranged at a certain part of the tunnel main body structure during manufacturing. But the setting of movement joint leads to the easy phenomenon of leaking water of tunnel again simultaneously, and external water sources such as groundwater can follow the movement joint and get into the tunnel promptly, brings the adverse effect to the normal traffic of facility and tunnel in the tunnel.
At present, in a common tunnel leakage-proof structure, a waterproof plate section is hung on the top wall and the side wall of a tunnel through wing plates on two sides of the waterproof plate section, so that a water receiving cavity is formed by the waterproof plate and the top wall and the side wall of the tunnel, and a water receiving box type structure is formed to receive and guide leakage water at a deformation joint. Although the structure can play a role in preventing leakage, the overall stability of the anti-leakage structure is insufficient, so that the waterproof plate profile is easily deformed too much and damaged under the action of external pressure or pulling force (such as force generated when a deformation joint is deformed under the influence of external temperature and humidity).
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tunnel movement joint anti-seepage structure, it can improve the overall stability of tunnel movement joint anti-seepage structure.
The embodiment of the utility model is realized like this:
the embodiment of the utility model provides a tunnel movement joint anti-seepage structure, this tunnel movement joint anti-seepage structure include fixed frame, stack gradually and set up in geotechnological cloth, waterproof board and the barrier film of the delivery port department of movement joint, it is range upon range of geotechnological cloth the waterproof board and the both sides of barrier film are all through bonding area sealing connection, geotechnological cloth the waterproof board and the barrier film forms waterproof component, fixed frame encloses to be located waterproof component's surface just is used for with tunnel fixed connection. The anti-leakage structure for the tunnel deformation joint can improve the overall stability of the anti-leakage structure for the tunnel deformation joint.
In a preferred embodiment of the present invention, the fixing frame is a reinforced concrete frame.
In the preferred embodiment of the present invention, the tunnel deformation joint leakage-proof structure further comprises an expansion strip, wherein the expansion strip is located at the connection interface of the waterproof board, the isolation film and the adhesive tape.
In a preferred embodiment of the present invention, the material of the expansion strip is rubber.
In the preferred embodiment of the present invention, the waterproof board is close to one side of the geotextile and is provided with a water collecting opening, the inside of the waterproof board is provided with at least one drainage blind ditch, the water collecting opening is communicated with the drainage blind ditch, and the drainage blind ditch is communicated with the tunnel drainage system.
In the preferred embodiment of the present invention, the number of the blind drainage grooves is 3, and 3 the blind drainage grooves are arranged in parallel at equal intervals along the width direction of the waterproof board.
In the preferred embodiment of the present invention, the tunnel deformation joint leakage-proof structure further comprises a gasket located on one side of the waterproof board, and the gasket is located on the waterproof board and is symmetrical to the deformation joint.
In a preferred embodiment of the present invention, the end of the gasket away from the isolation film is further provided with a rubber sealing element.
In the preferred embodiment of the present invention, the width of the geotextile, the width of the waterproof board and the width of the isolation film are 15 times to 35 times of the diameter of the water outlet of the deformation joint.
In the preferred embodiment of the present invention, a waterproof layer is further disposed between the geotextile and the water outlet of the deformation joint.
The utility model discloses beneficial effect includes:
the utility model provides a tunnel movement joint antiseep structure can bond geotechnological cloth, waterproof board and barrier film three in order to form waterproof component owing to setting up of adhesive tape for the overall stability of waterproof component structure has obtained the improvement, and uses the adhesive tape to bond easy and simple to handle and with low costs. In addition, this embodiment still partly encloses at waterproof component's periphery and is equipped with fixed frame, because this fixed frame's setting provides the holding power for waterproof component to prevented that the waterproof board from receiving the too big condition appearance that appears tunnel movement joint leak protection structure's overall structure is destroyed under the effect of external pressure or pulling force (if the movement joint receives the power that produces when ambient temperature, humidity influence warp). Simultaneously, the tunnel movement joint antiseep structure overall structure that this embodiment provided is simple, and because tunnel movement joint antiseep structure sets up in the lining cutting of tunnel, consequently also can not occupy the usage space in tunnel and safe and reliable more.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a leakage-proof structure of a tunnel deformation joint provided by an embodiment of the present invention;
fig. 2 is a schematic view of the connection between the drainage blind ditch and the tunnel drainage system.
Icon: 100-a leakage-proof structure of a tunnel deformation joint; 10-geotextile; 20-a waterproof board; 21-drainage blind ditches; 22-a drainage channel; 30-a barrier film; b is1-a width of the barrier film; 40-adhesive tape; 50-a waterproof component; 60-expansion strips; 70-tunnel drainage system; 80-a cushion member; 81-rubber seals; 91-deformation joint; b is2-the water outlet aperture of the deformation joint; 92-lining.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the present embodiment provides a tunnel deformation joint leakage-proof structure 100, where the tunnel deformation joint leakage-proof structure 100 includes a fixing frame, a geotextile 10, a waterproof board 20, and an isolation film 30 sequentially stacked at a water outlet of a deformation joint 91, two sides of the geotextile 10, the waterproof board 20, and the isolation film 30 are all sealed and connected by an adhesive tape 40, so that the geotextile 10, the waterproof board 20, and the isolation film 30 form a waterproof assembly 50 together, and the fixing frame is surrounded on an outer surface of the waterproof assembly 50 and is fixedly connected with a tunnel.
First, in order to make the tunnel deformation joint leakage-proof structure 100 not easy to be damaged, in this embodiment, the tunnel deformation joint leakage-proof structure 100 is disposed in the lining 92. Therefore, the use space in the tunnel is not occupied, and the interior of the tunnel is more attractive.
Secondly, the geotextile 10 is arranged at the water outlet of the deformation joint 91, and the geotextile 10 can isolate water and sand from the water outlet of the deformation joint 91 so as to prevent fine sand mixed in the seepage water from blocking the drainage channel 22 or damaging the waterproof board 20.
Third, in the present embodiment, the waterproof sheet 20 is disposed between the geotextile 10 and the separation membrane 30, and the thickness of the waterproof sheet 20 may be between 3cm and 5cm, and preferably 4 cm. The waterproof board 20 is made of a polymer material, such as neoprene or epdm. The material has good toughness and is more suitable for frequent changes of force at the position of the deformation joint 91.
Fourth, the provision of the barrier film 30 can prevent the erosion of the waterproof sheet 20 by moisture and corrosive gas in the tunnel. The specific material of the isolation film 30 can be selected by those skilled in the art according to their knowledge, and will not be described herein.
Fifth, in this embodiment, the geotextile 10, the waterproof sheet 20, and the separation film 30 are sequentially stacked, and preferably, the geotextile 10, the waterproof sheet 20, and the separation film 30 are aligned at both sides. In this way, the adhesive tape 40 can easily and quickly achieve close adhesion between the three. The bonding tape 40 bonds the geotextile 10, the waterproof sheet 20, and the separation membrane 30 together to form the waterproof module 50, which has a more stable overall structure than the structure without the bonding tape 40. In addition, in order to further improve the overall stability of the tunnel deformation joint leakage-proof structure 100, in this embodiment, a fixing frame is further provided, and the fixing frame is surrounded on the outer surface of the waterproof assembly 50 and is fixedly connected with the tunnel. It should be understood that the fixing frame covers the side wall of the waterproof assembly 50 and the side far from the deformation joint 91, that is, the fixing member is in a half-enclosed state, so that the fixing frame can provide a supporting force for the waterproof assembly 50 to prevent the waterproof board 20 from being deformed too much under the action of external pressure or pulling force (e.g., the force generated when the deformation joint 91 is deformed under the influence of external temperature and humidity) and the overall structure of the tunnel deformation joint leakage-proof structure 100 is damaged.
To sum up, the utility model provides a tunnel movement joint anti-seepage structure 100 can bond geotechnological cloth 10, waterproof board 20 and barrier film 30 three together in order to form waterproof component 50 owing to the setting of bonding area 40 for the overall stability of waterproof component 50 structure has obtained the improvement, and has used bonding area 40 to bond easy and simple to handle and with low costs. In addition, this embodiment still partly encloses at the periphery of waterproof component 50 and is equipped with fixed frame, because this fixed frame's setting provides the holding power for waterproof component 50 to prevented that waterproof board 20 from receiving the effect of external pressure or pulling force (for example the power that produces when movement joint 91 is influenced by ambient temperature, humidity and is out of shape) under the too big condition that appears tunnel movement joint antiseep structure 100's overall structure destroyed and appearing warping. Meanwhile, the tunnel deformation joint anti-leakage structure 100 provided by the embodiment is simple in overall structure, and the tunnel deformation joint anti-leakage structure 100 is arranged in the lining 92 of the tunnel, so that the tunnel deformation joint anti-leakage structure does not occupy the using space of the tunnel and is safer and more reliable.
In this embodiment, the fixed frame is a reinforced concrete frame. The steel bar is built by steel bars, and concrete is poured for forming.
In order to prevent the connection gap between the isolation film 30 and the adhesive tape 40 and the connection gap between the waterproof board 20 and the adhesive tape 40 from leaking water, the tunnel deformation joint leakage-proof structure 100 provided by the embodiment further includes an expansion strip 60, and the expansion strip 60 is disposed at the connection interface between the waterproof board 20, the isolation film 30 and the adhesive tape 40. Due to the arrangement of the expansion strip 60, the leakage water leaking from the connection gap between the waterproof sheet 20 and the adhesive tape 40 can be blocked by the expansion strip 60 to prevent the leakage water from continuing to leak down along the connection gap.
First, the size of the expansion strip 60 can be adjusted as needed, and in this embodiment, the length of the expansion strip 60 (corresponding to the length direction of the deformation joint 91) is greater than the thickness of the isolation film 30.
Secondly, the number of the expansion strips 60 can be determined according to the requirement, and can be arranged at two ends of one side of the waterproof component 50, or can be arranged around the waterproof component 50 in a four-corner manner.
Third, in the present embodiment, the material of the expansion strip 60 is rubber. Of course, those skilled in the art may select other materials according to the requirement, and the material is not limited herein.
In order to facilitate the drainage of the leaked water in time, in this embodiment, a water collecting opening is formed in one surface of the waterproof board 20 close to the geotextile 10, at least one drainage blind ditch 21 is formed inside the waterproof board 20, the water collecting opening is communicated with the drainage blind ditch 21, and the drainage blind ditch 21 is communicated with the tunnel drainage system 70. Thus, the leakage water entering the water collecting opening can be quickly discharged from the drainage system through the drainage blind ditch 21, and the leakage water is prevented from accumulating in the anti-leakage structure of the deformation joint 91.
First, in the present embodiment, the drain blind ditch 21 and the tunnel drainage system 70 are communicated through the drain passage 22, and the drain passage 22 is made of an elastic hose.
Secondly, in the present embodiment, the number of the blind drain grooves 21 is 3, and the 3 blind drain grooves 21 are arranged side by side at equal intervals along the width direction of the waterproof board 20. Of course, in other embodiments, the number of the blind drainage ditches 21 may be set to 2, 4, 5, 6, etc., and the number thereof is not particularly limited and may be determined according to actual situations.
In order to prevent the stress concentration at the deformation joint 91 from affecting the structural stability of the tunnel deformation joint leakage-proof structure 100, in this embodiment, the tunnel deformation joint leakage-proof structure 100 further includes a gasket 80 disposed on the side of the isolation film 30 away from the waterproof board 20, and the gasket 80 is disposed symmetrically with the deformation joint 91 and centered on the waterproof assembly 50.
Note that, the end of the spacer 80 away from the isolation diaphragm 30 is provided with a rubber seal 81. Specifically, whether the sealing rubber member is sleeved on one end of the cushion member 80 away from the isolation diaphragm 30 or fixedly connected to one end of the cushion member 80 away from the isolation diaphragm 30 is not limited in this embodiment. The sealing rubber provided by the embodiment is mainly used for isolating water vapor and corrosive gas in the tunnel from corroding the tunnel deformation joint anti-seepage structure 100, and only needs to prevent water vapor and the like from corroding the tunnel deformation joint anti-seepage structure 100.
In order to completely discharge the leakage water in the tunnel, the transverse width of the tunnel deformation joint leakage-proof structure 100 (i.e. the direction perpendicular to the length direction of the deformation joint 91) should be made as long as possible, but considering the structure of the tunnel itself and the limitation of the processing cost process, the tunnel deformation joint leakage-proof structure should be made as long as possible, and in the embodiment of this market, the width of the geotextile 10, the width of the waterproof board 20 and the width B of the isolation membrane should be made comprehensively considering various reasons1Water outlet caliber B of all deformation joints2From 15 times to 35 times. That is, the width of the waterproof assembly 50 is the outlet aperture B of the deformation joint2From 15 times to 35 times. At the same time, the increase in the lateral width of the waterproof assembly 50 also reduces the stress concentration phenomenon at the position of the deformation joint 91 to some extent.
Illustratively, the width of the geotextile 10, the width of the waterproof sheet 20, and the width B of the separation membrane1Water outlet caliber B capable of being deformation joint215 times, 16 times, 17 times, 20 times, 25 times, 28 times, 30 times of31 times or 35 times, etc.
In order to make the waterproof performance of the tunnel deformation joint leakage-proof structure 100 better, in this embodiment, a waterproof layer is further disposed between the geotextile 10 and the water outlet of the deformation joint 91.
The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a tunnel movement joint anti-seepage structure, its characterized in that includes fixed frame, stacks gradually and sets up geotechnological cloth, waterproof board and the barrier film in the delivery port department of movement joint, and is range upon range of geotechnological cloth waterproof board and the both sides of barrier film are all through bonding tape sealing connection, geotechnological cloth the waterproof board and the barrier film forms waterproof component, fixed frame encloses to be located waterproof component's surface just is used for with tunnel fixed connection.
2. The tunnel deformation joint leakage prevention structure according to claim 1, wherein the fixing frame is a reinforced concrete frame.
3. The tunnel deformation joint leakage prevention structure according to claim 1, further comprising an expansion strip, wherein the expansion strip is arranged at the connection interface of the waterproof board, the isolation film and the adhesive tape.
4. The tunnel deformation joint leakage prevention structure according to claim 3, wherein the material of the expansion strip is rubber.
5. The tunnel deformation joint leakage-proof structure according to claim 1, wherein a water collecting opening is formed in one surface of the waterproof plate close to the geotextile, at least one drainage blind ditch is formed in the waterproof plate, the water collecting opening is communicated with the drainage blind ditch, and the drainage blind ditch is communicated with a tunnel drainage system.
6. The tunnel deformation joint leakage-proof structure according to claim 5, wherein the number of the drainage blind ditches is 3, and the 3 drainage blind ditches are arranged side by side at equal intervals along the width direction of the waterproof plate.
7. The tunnel deformation joint leakage-proof structure according to claim 1, further comprising a gasket member disposed on a surface of the isolation membrane away from the waterproof plate, wherein the gasket member is symmetrically disposed with the deformation joint with the waterproof assembly as a center.
8. The tunnel deformation joint leakage prevention structure according to claim 7, wherein the end of the lining element away from the isolation membrane is further provided with a rubber sealing element.
9. The tunnel deformation joint leakage prevention structure according to claim 1, wherein the width of the geotextile, the width of the waterproof board and the width of the isolation membrane are all 15 to 35 times of the caliber of the water outlet of the deformation joint.
10. The tunnel deformation joint leakage-proof structure according to claim 1, wherein a waterproof layer is further arranged between the geotextile and the water outlet of the deformation joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282155.3U CN210370715U (en) | 2019-08-08 | 2019-08-08 | Leakage-proof structure for tunnel deformation joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282155.3U CN210370715U (en) | 2019-08-08 | 2019-08-08 | Leakage-proof structure for tunnel deformation joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370715U true CN210370715U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921282155.3U Active CN210370715U (en) | 2019-08-08 | 2019-08-08 | Leakage-proof structure for tunnel deformation joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210370715U (en) |
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2019
- 2019-08-08 CN CN201921282155.3U patent/CN210370715U/en active Active
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