CN211816030U - Water stop structure for expansion joint surface layer of hydraulic building - Google Patents
Water stop structure for expansion joint surface layer of hydraulic building Download PDFInfo
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- CN211816030U CN211816030U CN201922279781.3U CN201922279781U CN211816030U CN 211816030 U CN211816030 U CN 211816030U CN 201922279781 U CN201922279781 U CN 201922279781U CN 211816030 U CN211816030 U CN 211816030U
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Abstract
A water stopping structure for the surface layer of an expansion joint of a hydraulic structure comprises the expansion joint and an elastic water stopping strip structure inside the expansion joint; the inner wall of the expansion joint and the building top surfaces at two sides are provided with primer layers, and the elastic water stop strip structure is positioned at the top of the expansion joint; the cross section of the elastic water stop strip structure is rectangular and is provided with a top surface, a bottom surface and two side surfaces; the top surface is provided with a first arc-shaped curved surface structure, and/or the bottom surface is provided with a second arc-shaped curved surface structure; two side surfaces are provided with barb wing-shaped structures extending in the oblique upper direction; the elastic water stop strip structure is internally provided with a hole. The utility model discloses the structure is reliable, and the atress form is stable, can avoid hydraulic structure expansion joint to take place to sink, peel off, cut the destruction scheduling problem, prolongs hydraulic structure's life.
Description
Technical Field
The utility model belongs to the technical field of hydraulic engineering, especially a stagnant water structure for hydraulic structure expansion joint top layer.
Background
In the existing hydraulic concrete structures, such as water-retaining dams, water gates, aqueducts, tunnels, channels and other water-related projects, because the continuous casting can not be completed once or the concrete expansion caused by temperature change and contraction caused by cold are considered, an expansion joint needs to be arranged during casting, the expansion joint is a part where the leakage of the hydraulic building is easy to occur, the leakage damage not only causes water loss, but also an embedded water-stopping structure such as a rubber water-stopping belt, a copper water-stopping belt and the like is usually arranged in the expansion joint. However, the frequent leakage phenomenon of the embedded water stopping structure is generally shown due to the action of high water pressure and reverse water pressure, construction reasons, environmental reasons and the like. Once the water-stopping structure of the expansion joint is damaged, the water delivery quantity is reduced, and the damages such as collapse of a hydraulic structure main body, frost heaving damage of a foundation, sinking of the foundation and the like can be caused. Therefore, it is necessary to install a water stopping structure on the surface layer of the expansion joint of a newly built or built hydraulic structure. The structure (caulking and surface sealing) and the material of the surface water stop have to meet the functional requirements of the expansion joint, namely, the expansion joint has the characteristics of good durability, adaptability to three-dimensional deformation, strong remodelability, easy repair, high water pressure resistance and the like.
At present, in the operation process of hydraulic buildings, particularly for water delivery tunnels, box culverts, channels, high dams and the like in the large deformation process or under the action of forward and reverse high water pressure, due to the problems of water stop structure design and material durability, the problems of structural damage such as separation of a caulking structure from a telescopic seam wall, collapse and shearing of a surface sealing coating and the like, falling, pulverization, aging durability and the like can occur. In addition, the surface water stopping structure is difficult to repair and transform after being damaged.
Therefore, in order to ensure the safe operation of the engineering, the water stopping structure on the surface layer of the expansion joint has the advantages of high remodelability, easy repair, strong reinforcing capacity, good impermeability, large deformation adaptation, high water pressure resistance and high durability.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stagnant water structure for hydraulic structure expansion joint top layer, its structure is reliable, and the atress form is stable, can avoid the hydraulic structure expansion joint to take place to sink, peel off, cut the destruction scheduling problem.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a water stopping structure for the surface layer of an expansion joint of a hydraulic structure comprises the expansion joint and an elastic water stopping strip structure inside the expansion joint;
the inner wall of the expansion joint and the building top surfaces at two sides are provided with primer layers, and the elastic water stop strip structure is positioned at the top of the expansion joint;
the cross section of the elastic water stop strip structure is rectangular and is provided with a top surface, a bottom surface and two side surfaces; the top surface is provided with a first arc-shaped curved surface structure, and/or the bottom surface is provided with a second arc-shaped curved surface structure; two side surfaces are provided with barb wing-shaped structures extending in the oblique upper direction; the elastic water stop strip structure is internally provided with a hole.
In one embodiment, the cavity is filled with a flowing plastic filler, and a channel is arranged at a position of the side surface corresponding to the top of the cavity, so that the flowing plastic filler flows into a space between the side surface and the inner wall of the expansion joint through the channel.
In one embodiment, the holes are multiple and symmetrical relative to a horizontal plane or a vertical plane; the holes are circular, oval or polygonal; the area of the holes accounts for 30-80% of the area of the cross section of the elastic water stop strip structure, and preferably 50%.
In one embodiment, the included angle between the barb airfoil structure and the side face is 45-90 degrees.
In one embodiment, filler is arranged between the upper and lower adjacent barb wing-shaped structures.
In one embodiment, baffles are arranged on the top surface of the elastic water stop strip structure and extend towards two sides along the horizontal direction, and the two baffles are positioned on the top surfaces of the buildings on two sides of the expansion joint or positioned on the inwards-recessed step part of the inner wall of the expansion joint, so that the top surfaces of the baffles are flush with the top surfaces of the buildings on two sides of the expansion joint; the top of the baffle is of a convex structure, a concave structure or a plane structure.
In one embodiment, the top surface of the elastic water stop strip structure is provided with a sealing coating, and two ends of the sealing coating are fixed in grooves of the building top surface.
In one embodiment, a non-adhesive layer is disposed between the seal coat and the top surface of the elastomeric water stop strip structure.
In one embodiment, the first curved surface structure and the second curved surface structure are both concave structures or convex structures.
In one embodiment, the elastic water stop strip structure is made of rubber material, polyurethane material, ethylene propylene diene monomer rubber material or polyurea material; the closed coating is made of polyurethane material or polyurea material; the flowing plastic filler is a GB material or an SR material.
The utility model has the advantages that: the utility model is used for stagnant water structure on hydraulic structure expansion joint top layer, its structure is reliable, and the atress form is stable, can avoid the hydraulic structure expansion joint to take place to sink, peel off, cut the destruction scheduling problem, prolongs the life of hydraulic structure.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 1A is a schematic structural view of an elastic water stop strip structure in the embodiment 1 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 1B is another schematic structural view of the elastic water stop strip structure in the embodiment 1 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 2 is a schematic structural view of embodiment 2 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 3 is a schematic view of the embodiment 3 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure before being pressed.
Fig. 3A is a schematic view of the water stopping structure of the utility model applied to the surface layer of the expansion joint of the hydraulic structure after being pressed in embodiment 3.
Fig. 4 is a schematic view of the embodiment 4 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure before being pressed.
Fig. 4A is a schematic view of the water stopping structure for the surface layer of the expansion joint of the hydraulic structure according to the embodiment 4 of the present invention after being pressed.
Fig. 5 is a schematic structural view of the embodiment 5 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 5A is a schematic structural view of an elastic water stop strip structure in the embodiment 5 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 5B is another schematic structural view of the elastic water stop strip structure in the embodiment 5 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 5C is another schematic structural view of the elastic water stop strip structure in the embodiment 5 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 6 is a schematic view of the water stopping structure of the utility model applied to the surface layer of the expansion joint of the hydraulic structure before the tension of the embodiment 6.
Fig. 6A is a schematic diagram of the state of the water stopping structure of the utility model used in the top layer of the expansion joint of the hydraulic structure after being pulled in the embodiment 6.
Fig. 7 is a schematic view of the water stopping structure of the present invention in an embodiment 7 before being pulled for the surface layer of the expansion joint of the hydraulic structure.
Fig. 7A is a schematic view of the water stopping structure for the surface layer of the expansion joint of the hydraulic structure according to the embodiment 7 after being pulled.
Fig. 8 is a schematic structural view of an embodiment 8 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Fig. 9 is a schematic structural view of an embodiment 9 of the water stop structure for the surface layer of the expansion joint of the hydraulic structure of the present invention.
Detailed Description
In order to make the technical solution and the advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the following embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, it is the utility model provides a pair of a sealing up structure's on hydraulic structure expansion joint top layer embodiment 1, including expansion joint 1 and the inside elasticity sealing up strip structure 2 of this expansion joint 1. The elastic water stop strip structure 2 is made of rubber materials, polyurethane materials, ethylene propylene diene monomer rubber materials or polyurea materials.
The inner wall of the expansion joint 1 and the building top surfaces 3 at the two sides are provided with primer layers, and the elastic water stop strip structure 2 is positioned at the top of the expansion joint 1. The flexible water stop strip structure 2 is rectangular in cross section, having a top surface 21, a bottom surface 22 and two side surfaces 23. The top surface 21 has a first curved surface structure 211, and the bottom surface 22 has a second curved surface structure 221. Two sides 23 are equipped with barb airfoil structure 231 that the direction extends to one side, and barb airfoil structure 231 is 45 ~ 90 with the contained angle of side. The elastic water stop strip structure 2 is internally provided with a plurality of holes 4 which are symmetrical relative to a horizontal plane or a vertical plane. In this embodiment, the first arc-shaped curved surface structure 211 and the second arc-shaped curved surface structure 221 are both concave structures, and of course, may also be convex structures. In this embodiment, the top surface 21 of the elastic water stop strip structure 2 is flush with the building top surfaces 3 at both sides of the expansion joint 1.
As shown in fig. 1A and 1B, in addition to the polygon in fig. 1, the hole 4 of the elastic water stop strip structure 2 of the present invention may also be an elliptical shape, and symmetrically disposed. The utility model discloses a hole area accounts for 30 ~ 80%, preferred 50% of 2 cross-sectional area of this elasticity sealing rod structure.
As shown in fig. 2, it is the embodiment 2 of the water stop structure on the top layer of the expansion joint of the hydraulic structure of the present invention, which is different from embodiment 1 in that the top surface of the elastic water stop strip structure 2 is provided with a seal coating 5, the seal coating 5 is made of polyurethane material or polyurea material, the shape corresponds to the top surface of the elastic water stop strip structure 2, and both ends of the seal coating 5 are fixed in the groove 31 of the building top surface 3. Further, a non-adhesive layer 6 is arranged between the seal coating 5 and the top surface of the elastic water stop strip structure 2.
As shown in fig. 3, it is embodiment 3 of the water stop structure on the surface layer of the expansion joint of the hydraulic structure of the present invention, and the difference between it and embodiment 2 lies in that the inside of the hole 4 is filled with the flowing plastic filler 41, and the position of the side 23 corresponding to the top of the hole 4 is provided with the channel 42, so that the flowing plastic filler 41 flows into the space between the side 23 and the inner wall of the expansion joint 1 through the channel 42. Fig. 3 shows the whole structure of this embodiment before being pressed, and in fig. 3A, the whole structure of this embodiment flows the plastic filler 41 under the pressure to be squeezed out, and is blocked between the barb airfoil structure and the inner wall of the expansion joint, so as to form a compact water stop structure.
As shown in fig. 4, it is the embodiment 4 of the water stop structure on the surface layer of the expansion joint of the hydraulic structure of the present invention, which is different from the embodiment 3, the hole 4 of the elastic water stop strip structure 2 of the present invention is a diamond shape, and is symmetrically arranged. Fig. 4 shows the whole structure of this embodiment before being pressed, and in fig. 4A, the whole structure of this embodiment flows the plastic packing 41 to be extruded out under the pressure, and is blocked between the barb wing-shaped structure and the inner wall of the expansion joint, so as to form a compact water stop structure.
As shown in fig. 5, it is the utility model discloses an embodiment 5, in this embodiment, its difference with embodiment 2 lies in that this elastic water stop structure 2's top surface is equipped with baffle 24 to both sides along the horizontal direction extension, makes this elastic water stop structure 2 be the T type, and two baffles 24 are located this expansion joint 1 inner wall inwards sunken step portion 11 on, make this baffle 24's top surface and expansion joint 1 both sides building top surface 3 level mutually. The shape of the seal coat 5 corresponds to the top surface of the elastic water stop strip structure 2 and the baffle 24. The top of the baffle 24 may be convex, concave, or planar.
As shown in fig. 5A, 5B, and 5C, in addition to the polygon in fig. 5, the hole 4 of the elastic water stop strip structure 2 of the present invention may also be an ellipse or a diamond, and symmetrically disposed.
As shown in fig. 6, which is an embodiment 6 of the present invention, in this embodiment, the difference between the embodiment and the embodiment 5 is that the hole 4 is filled with the flowing plastic filler 41 inside the two sides, and the side 23 is provided with a channel 42 corresponding to the top of the hole 4, so that the flowing plastic filler 41 flows into between the side 23 and the inner wall of the expansion joint 1 through the channel 42.
Fig. 6 shows the whole structure of this embodiment before being pulled, and in fig. 6A, the whole structure of this embodiment flows the plastic filler 41 under the action of the tension to be extruded out, and is blocked between the barb wing-shaped structure and the inner wall of the expansion joint, so as to form a compact water stop structure.
As shown in fig. 7, it is an embodiment 7 of the present invention, and in this embodiment, it is different from the embodiment 6 in that the holes 4 are diamond-shaped. Fig. 7 shows the whole structure of this embodiment before being pressed, and in fig. 7A, the whole structure of this embodiment flows the plastic filler 41 to be extruded out under the pressure, and is blocked between the barb wing-shaped structure and the inner wall of the expansion joint, so as to form a compact water stop structure.
As shown in fig. 8, it is an embodiment 8 of the present invention, and in this embodiment, the difference from embodiment 5 is that the baffle 24 is located on the building top surface 3 at both sides of the expansion joint and is higher than the building top surface 3.
As shown in fig. 9, which is an embodiment 9 of the present invention, in this embodiment, the difference from embodiment 6 is that the baffle 24 is located on the building top surface 3 at both sides of the expansion joint and is higher than the building top surface 3.
The utility model also provides a construction method for a stagnant water structure on hydraulic structure expansion joint top layer, including the following step:
(1) grooving at the expansion joint according to the shape of the top surface of the elastic water stop strip structure to form a T-shaped structure, or directly performing the step (2);
(2) cleaning concrete dust and floating slurry on the inner wall and two sides of the expansion joint;
(3) coating a matched priming paint layer of the elastic water stop strip structure, filling flowing plastic filler in the hole according to the structure of the hole of the elastic water stop strip structure, and/or
Fillers are arranged between the barb wing-shaped structures adjacent to the elastic water stop strip structure from top to bottom, and/or
Embedding the elastic water stop strip structure into the expansion joint;
(4) coating a non-bonding layer on the first arc-shaped curved surface structure on the top surface of the elastic water stop strip structure; coating a primer layer matched with the surface sealing coating on the concrete surface on two sides of the top of the expansion joint;
(5) and spraying or brushing a surface sealing coating on the top of the expansion joint.
The elastic water stop strip structure 2 is made of rubber materials, polyurethane materials, ethylene propylene diene monomer rubber materials or polyurea materials; the seal coating 5 is made of polyurethane material or polyurea material; the flowing plastic filler 41 is a GB material, or an SR material.
The first arc-shaped curved surface structure 211 and the second arc-shaped curved surface structure 221 of the elastic water stop strip structure in the utility model have the function of reducing water pressure, so that the water stop structure can be prevented from being damaged; barb airfoil structure 231 of elastic water stop strip structure 2 can conveniently be under construction, only need with elastic water stop strip structure 2 impress in the expansion joint 1 can. The utility model discloses a can also fill mobile plastic filler 41 in the hole 4, bear forward at expansion joint 1, or reverse, or under the flexible condition of warping, filler material extrudes to between side 23 and the 1 inner wall of expansion joint, prevents the infiltration. The utility model is used for stagnant water structure on hydraulic structure expansion joint top layer, its structure is reliable, and the atress form is stable, can avoid the hydraulic structure expansion joint to take place to sink, peel off, cut the destruction scheduling problem, prolongs the life of hydraulic structure.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A water stopping structure for the surface layer of an expansion joint of a hydraulic building is characterized by comprising an expansion joint and an elastic water stopping strip structure inside the expansion joint;
the inner wall of the expansion joint and the building top surfaces at two sides are provided with primer layers, and the elastic water stop strip structure is positioned at the top of the expansion joint;
the cross section of the elastic water stop strip structure is rectangular and is provided with a top surface, a bottom surface and two side surfaces; the top surface is provided with a first arc-shaped curved surface structure, and/or the bottom surface is provided with a second arc-shaped curved surface structure; two side surfaces are provided with barb wing-shaped structures extending in the oblique upper direction; the elastic water stop strip structure is internally provided with a hole.
2. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 1, wherein: the hole is filled with the flowing plastic filler, and a channel is arranged at the position, corresponding to the top of the hole, of the side surface, so that the flowing plastic filler flows into the space between the side surface and the inner wall of the expansion joint through the channel.
3. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 1 or 2, wherein: the number of the holes is multiple, and the holes are symmetrical relative to a horizontal plane or a vertical plane; the holes are circular, oval or polygonal; the area of the hole accounts for 30-80% of the area of the section of the elastic water stop strip structure.
4. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 1 or 2, wherein: the top surface of the elastic water stop strip structure extends towards two sides along the horizontal direction and is provided with a baffle plate, the two baffle plates are positioned on the top surfaces of the buildings at two sides of the expansion joint, or the two baffle plates are positioned on the inwards sunken step part of the inner wall of the expansion joint, so that the top surfaces of the baffle plates are level with the top surfaces of the buildings at two sides of the expansion joint; the top of the baffle is of a convex structure, a concave structure or a plane structure.
5. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 4, wherein: barb airfoil structure with the contained angle of side is 45 ~ 90, is equipped with the filler between the barb airfoil structure adjacent from top to bottom.
6. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 4, wherein: the top surface of the elastic water stop strip structure is provided with a sealing coating, and two ends of the sealing coating are fixed in the grooves of the top surface of the building.
7. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 6, wherein: and a non-bonding layer is arranged between the seal coating and the top surface of the elastic water stop strip structure.
8. The water stopping structure for the surface layer of the expansion joint of the hydraulic structure as claimed in claim 1 or 2, wherein: the first arc-shaped curved surface structure and the second arc-shaped curved surface structure are both concave structures or convex structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922279781.3U CN211816030U (en) | 2019-12-17 | 2019-12-17 | Water stop structure for expansion joint surface layer of hydraulic building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922279781.3U CN211816030U (en) | 2019-12-17 | 2019-12-17 | Water stop structure for expansion joint surface layer of hydraulic building |
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| CN211816030U true CN211816030U (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592481A (en) * | 2022-03-23 | 2022-06-07 | 重庆交通大学 | Ship lock chamber prestress water stop structure and construction method thereof |
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2019
- 2019-12-17 CN CN201922279781.3U patent/CN211816030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592481A (en) * | 2022-03-23 | 2022-06-07 | 重庆交通大学 | Ship lock chamber prestress water stop structure and construction method thereof |
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