CN218479828U - Middle-buried composite water stop - Google Patents
Middle-buried composite water stop Download PDFInfo
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- CN218479828U CN218479828U CN202221895177.9U CN202221895177U CN218479828U CN 218479828 U CN218479828 U CN 218479828U CN 202221895177 U CN202221895177 U CN 202221895177U CN 218479828 U CN218479828 U CN 218479828U
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- water stop
- deformation
- steel plate
- ethylene propylene
- diene monomer
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a well bury formula composite water stop is applicable to open cut tunnel waterproof field. The water stop comprises a deformation area, a waterproof area and an installation area; the deformation zone is composed of ethylene propylene diene monomer, the waterproof zone is composed of a galvanized steel plate coated with reactive butyl rubber putty, and the mounting zone is composed of steel plate openings. The ethylene propylene diene monomer rubber is provided with convex ribs to enhance the bonding capacity with concrete; the deformation area is set to be U-shaped so as to adapt to large deformation at the deformation joint of the tunnel; the galvanized steel plate is coated with reactive butyl rubber putty to enhance the bonding capability with concrete. The utility model discloses simple to operate, safe and reliable is favorable to promoting the waterproof performance of open cut tunnel overall structure especially movement joint department, and application prospect is good.
Description
Technical Field
The utility model relates to a tunnel prevention of seepage stagnant water technical field, in particular to bury formula composite water stop.
Background
With the continuous development of city construction, more and more underground tunnels are constructed. Because the open cut method has the advantages of low economic cost, mature technology, safety, reliability and the like, the open cut method is mostly adopted for construction when the conditions allow. The engineering environment of the tunnel is complex, and water leakage and disease are easy to generate in the construction and service stages. According to statistics, about 28.6% of railway tunnels and 31% of highway tunnels in China have serious water leakage diseases. The water leakage occurring at the deformation joint accounts for 43 percent of the water leakage of the open-cut tunnel and becomes a weak part for preventing water leakage of the open-cut tunnel, the water leakage problem is serious, and the safety and normal operation of the tunnel structure are threatened.
At present, the method for preventing water leakage at deformation joints of open cut tunnels mostly adopts the combination of a middle-buried steel-edged rubber water stop and a back-attached water stop, other common water stops have CB type rubber water stops, CP type rubber water stops and the like, and the main reasons of the water stop water failure are as follows: the adhesion between the waterstop and the concrete is insufficient, slippage is easy to occur, and groundwater seeps along a gap between the concrete and the waterstop, so that seepage occurs; rubber materials are easy to age, and the waterproof effect is reduced, so that water leakage is caused; the deformation capability of the water stop belt is weak, and when deformation such as uneven settlement, stretching, compression and the like occurs to a deformation joint, the water stop belt is damaged, so that leakage is caused; the construction quality is not controlled in place, water belt deflection is stopped in the construction process, or concrete is not vibrated compactly, a water seepage channel is left, and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a bury formula composite water stop to the defect of current water stop.
The utility model discloses a realize through following technical scheme:
a kind of middle-buried compound water stop, the main body of the water stop is made up of ethylene propylene diene monomer, steel plate, reactive butyl rubber putty; the EPDM rubber forms a deformation area of the water stop belt, is U-shaped, can adapt to shearing deformation under the action of uneven settlement of a deformation joint, and can adapt to tension-compression deformation caused by tension-compression of the deformation joint; the ethylene propylene diene monomer rubber has waterproof property, and water leakage at deformation joints is prevented. The steel plate stretches into the inner parts of two sides of the ethylene propylene diene monomer, reactive butyl rubber putty is coated on the steel plate to form a water stop wing plate, and the water stop wing plate and a horizontal line form an included angle of 5 degrees. The steel plate provides the strength of the waterstop, so that the waterstop is not easy to bend and break in the construction process; the reactive butyl rubber putty reacts with the concrete to form a tight impervious layer, and meanwhile, the waterstop is ensured to be tightly bonded with the concrete and is not easy to pull out in the process of stress or concrete shrinkage deformation. The ethylene propylene diene monomer rubber is provided with convex ribs so as to enhance the binding force between the water stop and the concrete.
The outermost side of the steel plate is provided with a hole, and the water stop belt is fixed in the deformation joint through a lead wire for tapping the steel plate.
Compared with the prior art, the utility model discloses following advantage has:
the utility model discloses the structure setting is applicable to open cut cast-in-place tunnel movement joint department in open cut river crossing tunnel's bottom plate and side wall, starts from waterstop own design condition, solves because of the waterstop is not firm with the concrete bonding, the poor waterproof inefficacy problem that leads to of waterstop deformability to strengthen the water-proof effects control ability of movement joint department.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the position of the present invention in the tunnel floor.
In the figure: 1. ethylene propylene diene monomer, 2. A steel plate, 3. Reactive butyl rubber, 4. A bulge, 5. A deformation joint, 6. An open-cut cast-in-place tunnel bottom plate and 7 novel composite waterstop structures.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following drawings and examples, and the specific examples described herein are only used for explaining the present invention and are not used for limiting the present invention.
Example one
As shown in fig. 1, the main body of the middle-buried composite water stop is composed of ethylene propylene diene monomer rubber 1, a steel plate 2 and reactive butyl rubber putty 3; the EPDM rubber 1 forms a deformation area of the water stop belt and is U-shaped so as to adapt to larger deformation; the steel plate 2 extends into the inner parts of two sides of the ethylene propylene diene monomer rubber 1, and the steel plate 2 is covered with reactive butyl rubber putty 3 to form a wing plate of the water stop belt; the ethylene propylene diene monomer rubber 1 is provided with a convex rib 4 to enhance the binding force between the water stop and the concrete.
The buried composite water stop in this embodiment is arranged in the bottom plate and the side wall of the open-cut river-crossing tunnel, is suitable for deformation joints of the open-cut cast-in-place tunnel, and solves the problem of water failure caused by the weak bonding between the water stop and concrete and the poor deformation performance of the water stop from the design condition of the water stop, so that the waterproof effect control capability of the deformation joints is enhanced.
Example two
As shown in fig. 2, the buried composite water stop at the deformation joint of the open-cut cast-in-place tunnel of the present embodiment is disposed on a bottom plate 6 of the cast-in-place tunnel, the deformation joint 5 is disposed in the bottom plate 6, and the water stop is fixed in the deformation joint 5.
As shown in fig. 1, the main body of the middle-buried composite water stop is composed of ethylene propylene diene monomer rubber 1, a steel plate 2 and reactive butyl rubber putty 3; the EPDM rubber 1 forms a deformation area of the water stop belt, is 20mm in width, is U-shaped, and can adapt to shearing deformation under the action of uneven settlement of the deformation joint 5 and to tensile and compression deformation caused by tensile and compression of the deformation joint 5; the ethylene propylene diene monomer 1 has waterproof property, water leakage at the deformation joint 5 is prevented, and the total width of the ethylene propylene diene monomer 1 is 100mm.
The steel plate 2 extends into the two sides of the ethylene propylene diene monomer rubber 1 and is compounded with the ethylene propylene diene monomer rubber 1 into a whole with the width of 300 mm. The steel plate 2 is covered with reactive butyl rubber putty 3 to form a water stop wing plate, and the water stop wing plate forms an included angle of 5 degrees with the horizontal line. The steel plate 2 provides the strength of the waterstop, so that the waterstop is not easy to bend and break in the construction process; the reactive butyl rubber putty 3 reacts with the concrete to form a tight impervious layer, and meanwhile, the waterstop is ensured to be tightly bonded with the concrete and is not easy to pull out in the process of stress or concrete shrinkage deformation.
The ethylene propylene diene monomer rubber 1 is provided with a convex rib 4 to enhance the binding force between the water stop and the concrete.
2 outmost side trompils of steel sheet are fixed the waterstop in movement joint 5 through 2 trompils of steel sheet with the lead wire.
The water stop of the embodiment comprises a deformation area, a waterproof area and an installation area; the deformation zone is composed of ethylene propylene diene monomer, the waterproof zone is composed of a galvanized steel plate coated with reactive butyl rubber putty, and the installation zone is composed of steel plate holes. The ethylene propylene diene monomer rubber is provided with convex ribs to enhance the bonding capacity with concrete; the deformation area is set to be U-shaped so as to adapt to large deformation at the deformation joint of the tunnel; the galvanized steel plate is coated with reactive butyl rubber putty to enhance the bonding capability with concrete. This embodiment waterstop simple to operate, safe and reliable is favorable to promoting the waterproof performance of open cut tunnel overall structure especially movement joint department, and application prospect is good.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and can also make various changes according to the purpose created by the invention, and all changes, modifications, replacements, combinations or simplifications made according to the spirit and principle of the technical solution of the present invention should be equivalent replacement modes, so long as the objects of the present invention are met, and all belong to the protection scope of the present invention as long as the technical principle and the inventive concept of the present invention do not depart.
Claims (3)
1. A middle-buried composite water stop is characterized in that the main body part of the water stop is formed by combining ethylene propylene diene monomer (1), a steel plate (2) and reactive butyl rubber putty (3); the ethylene propylene diene monomer rubber (1) forms a deformation area of the water stop belt and is U-shaped so as to adapt to larger deformation; the steel plate (2) extends into the inner parts of two sides of the ethylene propylene diene monomer rubber (1), and the steel plate (2) is covered with reactive butyl rubber putty (3) to form a wing plate of the water stop belt; the ethylene propylene diene monomer rubber (1) is provided with the convex ribs (4) to enhance the binding force between the water stop belt and concrete.
2. The buried composite water stop according to claim 1, wherein the water stop wing plate forms an angle of 5 ° with the horizontal line.
3. The buried composite water stop according to claim 1, wherein the outermost side of the steel plate (2) is provided with a hole to facilitate the installation of the water stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221895177.9U CN218479828U (en) | 2022-07-21 | 2022-07-21 | Middle-buried composite water stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221895177.9U CN218479828U (en) | 2022-07-21 | 2022-07-21 | Middle-buried composite water stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218479828U true CN218479828U (en) | 2023-02-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221895177.9U Active CN218479828U (en) | 2022-07-21 | 2022-07-21 | Middle-buried composite water stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218479828U (en) |
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2022
- 2022-07-21 CN CN202221895177.9U patent/CN218479828U/en active Active
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