Waterproof structure of small cover plate bridge and culvert and prefabricated small cover plate bridge and culvert
By employing a waterproof structure consisting of a polyurethane layer, a polyethylene layer, and a flexible protective layer in the cover plate culvert, the problems of poor waterproofing and high cost were solved, achieving better waterproofing, heat insulation, and wear resistance while reducing costs.
Patent Information
- Application Number
- CN202520113825.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing waterproof structures for small bridges and culverts with cover plates suffer from poor waterproofing, poor wear resistance, and high cost, making them difficult to promote.
The waterproof layer consists of a polyurethane layer, a polyethylene layer, and a flexible protective layer. The self-adhesive layer enhances the overall waterproof performance. Through the structural design of the prefabricated assembled cover plate small bridge culvert, the polyurethane layer, polyethylene layer, and flexible protective layer are integrated as a waterproof layer to provide multi-layer water barrier effect.
It improves waterproof, heat insulation and wear resistance, reduces costs, and is easy to promote and apply.
Smart Images
Figure CN223824234U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to culvert structure technical field especially is related to a waterproof structure and prefabricated assembly type cover plate small bridge culvert of cover plate small bridge culvert. BACKGROUND
[0002] The cover plate small bridge culvert is a culvert structure, which is mainly produced and manufactured in a factory by prefabricated components and assembled on site.
[0003] The waterproof structure of the traditional cover plate small bridge culvert mainly has two types:
[0004] (1) waterproof by using oil felt and asphalt coating, which can achieve simple waterproof effect, but the effect of puncture resistance and wear resistance is not good;
[0005] (2) waterproof layer of coiled material and high polymer synthetic material plate, which has good waterproof effect, but the cost is high and difficult to promote. Therefore, there is an urgent need for a waterproof structure and prefabricated assembly type cover plate small bridge culvert to solve the above problems. INVENTION CONTENTS
[0006] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, the utility model provides a waterproof structure and prefabricated assembly type cover plate small bridge culvert.
[0007] The technical scheme of the utility model is as follows:
[0008] A waterproof structure of a cover plate small bridge culvert is applied to the prefabricated assembly type cover plate small bridge culvert, wherein it comprises:
[0009] An isolation layer is arranged on the surface of the prefabricated assembly type cover plate small bridge culvert;
[0010] A waterproof layer is arranged on the surface of the isolation layer away from the prefabricated assembly type cover plate small bridge culvert, and the waterproof layer comprises a polyurethane layer, a polyethylene layer and a flexible protective layer arranged in sequence, wherein the thickness of the polyurethane layer ranges from 2mm to 5mm, which can provide a better waterproof barrier to resist greater water pressure and permeability, and also provide better elasticity and flexibility, so that the waterproof layer has better wear resistance and puncture resistance.
[0011] In a possible technical scheme, further, the waterproof layer further comprises a self-adhesive layer arranged between the polyurethane layer and the polyethylene layer, which can be used to tightly couple the polyethylene layer to the polyurethane layer, enhance the waterproof performance and flexibility of the waterproof layer as a whole, improve the weather resistance of the waterproof layer, and maintain the stability and service life of the overall structure.
[0012] In one possible technical solution, the surface of the polyurethane layer facing the self-adhesive layer is a smooth plane, which facilitates the improvement of the overall wear resistance of the waterproof layer.
[0013] In one possible technical solution, the polyurethane layer, the self-adhesive layer, and the polyethylene layer are further integrated into a single structure, reducing the difficulty of subsequent on-site construction and improving construction efficiency.
[0014] In one possible technical solution, the flexible protective layer is further described as a geotextile soft protective layer, which has high strength and corrosion resistance, is suitable for the outdoor climate conditions of small bridges and culverts, and improves the service life of small bridges and culverts.
[0015] In one possible technical solution, the polyurethane layer is further 3mm thick, which is both waterproof and has excellent toughness.
[0016] A prefabricated assembled culvert with a cover plate, comprising multiple culvert units assembled sequentially, wherein each culvert unit includes:
[0017] A cover plate base is laid on the bridge and culvert foundation, and the cover plate base is provided with a first parallel slide rail;
[0018] Two cover plate support walls are respectively installed on the first parallel slide rail and are slidably spliced and fixed with the cover plate bottom plate;
[0019] A cover plate top plate has a second parallel slide rail, and the cover plate top plate and the cover plate support wall are slidably spliced and fixed by the two cover plate support walls;
[0020] The waterproof structure of the aforementioned cover plate culvert is fixedly installed on the surface of the top plate of the cover plate, away from the cover plate support wall.
[0021] In one possible technical solution, the cover plate support wall is generally I-shaped and has a symmetrical structure with grooves that are adapted to the first parallel slide rail and the second parallel slide rail respectively.
[0022] According to the waterproof structure and prefabricated assembled culvert cover plate of this utility model, a polyurethane layer, a polyethylene layer, and a flexible protective layer are integrated into one as a waterproof layer for the prefabricated assembled culvert cover plate, providing multi-layered water barrier for the culvert. Compared with existing waterproof layers, this utility model has better waterproof, heat insulation, puncture resistance, and wear resistance. Furthermore, it is more cost-effective than existing rolled materials and polymer synthetic materials, making it economical and easy to promote.
[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the waterproof structure of the cover plate small bridge culvert according to an embodiment of the present utility model;
[0026] Figure 2 yes Figure 1 Enlarged schematic diagram of part A;
[0027] Figure 3 This is a simplified diagram of a prefabricated assembled cover plate culvert according to an embodiment of this utility model.
[0028] Figure label:
[0029] 1. Isolation layer; 2. Waterproof layer; 21. Polyurethane layer; 22. Polyethylene layer; 23. Flexible protective layer; 24. Self-adhesive layer; 3. Cover plate bottom plate; 31. First parallel slide rail; 4. Cover plate support wall; 4. Slot; 5. Cover plate top plate; 51. Second parallel slide rail. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are merely for explaining this application and are not intended to limit this application.
[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0033] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, it may include a series of steps or units, or optionally, steps or units not listed, or other steps or units inherent to these processes, methods, products, or devices.
[0034] The accompanying drawings show only the portions relevant to this application, not all of them. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts depict operations (or steps) as sequential processes, many of these operations may be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operation is completed, but may also have additional steps not included in the drawings. The process may correspond to a method, function, procedure, subroutine, subprogram, etc.
[0035] The terms “component,” “module,” “system,” “unit,” etc., used in this specification are used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a unit can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, a thread of execution, a program, and / or distributed between two or more computers. Furthermore, these units can be executed from various computer-readable media on which various data structures are stored. Units can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from a second unit interacting with another unit between a local system, a distributed system, and / or a network; for example, the Internet interacting with other systems via signals).
[0036] Example 1
[0037] like Figures 1 to 2 As shown, this embodiment provides a waterproof structure for a prefabricated slab culvert, which is applied to prefabricated slab culverts and includes:
[0038] Isolation layer 1 is disposed on the surface of the prefabricated assembled cover plate culvert;
[0039] Waterproof layer 2 is disposed on the surface of the isolation layer 1 away from the prefabricated assembled cover plate culvert. Waterproof layer 2 includes a polyurethane layer 21, a polyethylene layer 22 and a flexible protective layer 23 disposed in sequence. The thickness of the polyurethane layer 21 ranges from 2mm to 5mm. On the one hand, it can provide a better waterproof barrier to resist greater water pressure and penetration. On the other hand, it can also provide better elasticity and flexibility, so that the waterproof layer has better wear resistance and puncture resistance.
[0040] It should be noted that the waterproof layer 2 also includes a self-adhesive layer 24, which is disposed between the polyurethane layer 21 and the polyethylene layer 22. The self-adhesive layer 24 can be used to tightly couple the polyethylene layer 22 to the polyurethane layer 21, thereby enhancing the overall waterproof performance and flexibility of the waterproof layer 2, improving the weather resistance of the waterproof layer 2, and maintaining the stability and service life of its overall structure.
[0041] It should be noted that the surface of the polyurethane layer 21 facing the self-adhesive layer 24 is a smooth plane, which facilitates the improvement of the overall wear resistance of the waterproof layer 2.
[0042] It should be noted that the polyurethane layer 21, the self-adhesive layer 24, and the polyethylene layer 22 are an integral structure, which reduces the difficulty of subsequent on-site construction and improves construction efficiency.
[0043] It should be noted that the flexible protective layer 23 is a geotextile soft protective layer, which has high strength and corrosion resistance, is suitable for the outdoor climate conditions of small bridges and culverts, and improves the service life of small bridges and culverts.
[0044] It should be noted that the polyurethane layer 21 is 3mm thick, which is both waterproof and has excellent toughness.
[0045] According to the waterproof structure of the covered culvert of this utility model, a polyurethane layer, a polyethylene layer, and a flexible protective layer are integrated into one waterproof layer to act as a waterproof layer for the covered culvert, which can provide multi-layer water barrier for the covered culvert structure. Compared with existing waterproof layers, this utility model has better waterproof, heat insulation, puncture resistance, and wear resistance. Moreover, in terms of cost, it is more economical and easier to promote than existing rolled materials and polymer synthetic materials.
[0046] Example 2
[0047] like Figures 1 to 3 As shown, this embodiment provides a prefabricated assembled culvert with a cover plate, which includes multiple culvert units assembled sequentially, wherein each culvert unit includes:
[0048] A cover plate 3 is laid on the bridge and culvert foundation, and the cover plate 3 is provided with a first parallel slide rail 31;
[0049] Two cover plate support walls 4 are respectively installed on the first parallel slide rail 31 and are slidably spliced and fixed with the cover plate bottom plate 3;
[0050] A cover plate top plate 5 has a second parallel slide rail 51, and the cover plate top plate 5 and the cover plate support wall 4 are slidably spliced and fixed by the two cover plate support walls 4.
[0051] The waterproof structure of the aforementioned cover plate culvert is fixedly installed on the surface of the top plate 5 of the cover plate, away from the cover plate support wall 4.
[0052] The bottom plate 3 and the top plate 5 of the cover plate are the main load-bearing parts of the small bridge and culvert. They are usually made of reinforced concrete or prestressed concrete and have sufficient strength and rigidity to withstand the upper load and transmit water pressure.
[0053] It should be noted that the cover plate support wall 4 in this embodiment is used to support the cover plate and guide the water flow, while preventing the water flow from eroding the roadbed and slope. Its cross-section is similar to a corbel structure, and the whole is I-shaped and symmetrical in the upper and lower parts. It has a slot 41, which is adapted to the first parallel slide rail 31 and the second parallel slide rail 51 respectively.
[0054] It should be noted that in this embodiment, there is no thickness limitation on the bottom plate 3, the supporting wall 4, and the top plate 5 of the cover plate; they only need to meet the strength requirements of the design.
[0055] According to this utility model, a prefabricated assembled cover culvert integrates a polyurethane layer, a polyethylene layer, and a flexible protective layer as a waterproof layer, providing multi-layered water barrier for the prefabricated assembled cover culvert structure. Compared to existing waterproof layers, this utility model offers better waterproofing, heat insulation, puncture resistance, and wear resistance. Furthermore, it is more cost-effective than existing rolled materials and polymer synthetic materials, making it economical and easy to promote.
[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.
[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.
[0058] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A waterproof structure for a slab-covered culvert, applied to prefabricated assembled slab-covered culverts, characterized in that, include: An isolation layer (1) is provided on the surface of the prefabricated assembled cover plate culvert; A waterproof layer (2) is disposed on the surface of the isolation layer (1) away from the prefabricated assembled culvert cover plate. The waterproof layer (2) includes a polyurethane layer (21), a polyethylene layer (22) and a flexible protective layer (23) disposed in sequence, wherein the thickness of the polyurethane layer (21) ranges from 2 mm to 5 mm.
2. The waterproof structure of the covered culvert bridge according to claim 1, characterized in that, The waterproof layer (2) further includes a self-adhesive layer (24), which is disposed between the polyurethane layer (21) and the polyethylene layer (22).
3. The waterproof structure of the covered culvert bridge according to claim 2, characterized in that, The surface of the polyurethane layer (21) facing the self-adhesive layer (24) is a smooth plane.
4. The waterproof structure of the covered culvert according to claim 2, characterized in that, The polyurethane layer (21), the self-adhesive layer (24), and the polyethylene layer (22) are an integral structure.
5. The waterproof structure of the covered culvert according to claim 1, characterized in that, The flexible protective layer (23) is a geotextile soft protective layer.
6. The waterproof structure of the covered culvert according to claim 3, characterized in that, The thickness of the polyurethane layer (21) is 3 mm.
7. A prefabricated assembled culvert with a cover plate, characterized in that, It is constructed by sequentially building multiple bridge and culvert units, each of which includes: A cover plate (3) is laid on the bridge and culvert foundation, and the cover plate (3) is provided with a first parallel slide rail (31); Two cover plate support walls (4) are respectively installed on the first parallel slide rail (31) and are slidably spliced and fixed with the cover plate bottom plate (3); A cover plate top plate (5) has a second parallel slide rail (51), and the cover plate top plate (5) and the cover plate support wall (4) are slidably spliced and fixed through the two cover plate support walls (4); The waterproof structure of the cover plate culvert according to any one of claims 1 to 6 is fixedly installed on the surface of the top plate (5) of the cover plate away from the cover plate support wall (4).
8. The prefabricated assembled culvert with cover plate according to claim 7, characterized in that, The cover plate support wall (4) is in the shape of an I-beam and has a symmetrical structure. It has a slot (41) that is adapted to the first parallel slide rail (31) and the second parallel slide rail (51) respectively.