Flood bank water stop tape device

By installing waterstop devices at the corners of the vertical retaining walls and base plate of the flood control dike, and using modular structures and expansion bolts for fixing, a sealing system is formed, which solves the problem of water seepage in the flood control dike and improves the safety and durability of the structure.

CN117488735BActive Publication Date: 2026-07-07SICHUAN SHUIFA SURVEY DESIGN & RES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN SHUIFA SURVEY DESIGN & RES CO LTD
Filing Date
2023-12-14
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Cracks and leaks between the wave-breaking wall on the top of the flood control dike and the foundation caused by uneven deposition and insufficient compaction during construction can lead to water seepage and leakage, reducing the durability of hydraulic structures and potentially causing structural damage in severe cases.

Method used

Waterstop devices are installed at the corners of vertical retaining walls and base slabs. A modular structure consisting of waterstops, pressure plates, and precast concrete blocks is formed and fixed with expansion bolts to create a sealing system to block leakage channels.

Benefits of technology

It effectively plugs the seepage problem, improves the safety and durability of the flood control dike, facilitates the individual installation and subsequent replacement of local seepage areas, and reduces the corrosive and carbonation effects of seepage on concrete.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the technical field of hydraulic engineering construction, and particularly relates to a flood control embankment water stop belt device, which is integrally composed of a modular structure, a sealing part composed of a water stop belt, a pressing plate and a concrete precast block is movably connected between a vertical retaining wall and a base surface of a bottom plate through the mode of expansion bolts, overall installation is convenient, and local water seepage areas can be separately installed, and the water stop belt can be replaced subsequently. It is a good solution to the water seepage problem caused by cracks in the corner part of the new and old concrete joint surface, and provides favorable conditions for safe operation and later maintenance of the embankment.
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Description

Technical Field

[0001] This invention belongs to the field of water conservancy engineering construction technology, specifically relating to a flood control dike waterstop device. Background Technology

[0002] Uneven settlement, insufficient compaction during construction, and chemical shrinkage during concrete pouring can cause cracks between the wave wall and the foundation at the top of the flood control dike, leading to water seepage and leakage. The seeping water further accelerates internal corrosion, carbonation, steel corrosion, and alkali-aggregate reaction in the concrete, reducing its durability and potentially causing structural damage in severe cases, thus adversely affecting the normal operation of hydraulic structures.

[0003] The information disclosed in the background section above is only used to enhance the understanding of the background art of the art described herein. Therefore, the background art may contain certain information that does not constitute prior art known to those skilled in the art in this country. Summary of the Invention

[0004] In view of this, the present invention proposes a flood control dike waterstop device. By installing the waterstop device at the angle between the base plate and the vertical retaining wall, a sealing system is formed at that location to achieve the purpose of tight water stoppage.

[0005] The technical solution adopted in this invention is as follows:

[0006] A flood control dike waterstop device is installed at the leakage channel at the corner of a vertical retaining wall and a base plate. It includes: a waterstop strip, which is L-shaped, with its sides adhering to the surface of the vertical retaining wall and its bottom adhering to the surface of the base plate, the corner pointing towards the leakage channel; a pressure plate is installed above the waterstop strip, and a precast concrete block is installed above the pressure plate; the pressure plate and the waterstop strip are fixedly connected to the vertical retaining wall and the base plate respectively by expansion bolts to seal the leakage channel.

[0007] In some implementations, the precast concrete block is also provided with handles for easy installation, and the handles are firmly welded to the main reinforcement bars of the precast concrete block.

[0008] In some implementations, grooves are cut on the sides and bottom of the precast concrete blocks, with the groove spacing matching the distance between expansion bolts, and the groove width and depth matching the size of the expansion bolts.

[0009] In some embodiments, the plane formed by the centerline of the slotted channel of the precast concrete block coincides with the installation plane of the expansion bolt positioning centerline of the retaining wall and the base plate.

[0010] In some embodiments, the waterstop is made of a polymer structural component.

[0011] In some embodiments, the waterstop is arranged in an L-shape, with the bottom horizontal section having a rectangular cross-section and the side vertical section having a trapezoidal cross-section, and the slope of the trapezoidal slope i > 1:10.

[0012] In some embodiments, the pressure plate consists of a bottom pressure plate and a vertical pressure plate, the bottom pressure plate being pressed onto the bottom of the waterstop and the vertical pressure plate being pressed onto the side of the waterstop.

[0013] In some embodiments, the precast concrete block has a trapezoidal cross-sectional shape with a slope i > 1:10. The width of the bottom edge of the precast concrete block is the same as the width of the bottom pressure plate, and the width of the inclined side of the precast concrete block is the same as the width of the vertical pressure plate.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] The flood control dike waterstop device proposed in this invention adopts a modular structure. The sealing component, consisting of a waterstop, pressure plate, and precast concrete blocks, is movably connected to the foundation surface of the vertical retaining wall and base slab via expansion bolts. This facilitates overall installation and allows for individual installation in localized seepage areas, as well as subsequent replacement of the waterstop. It provides a better solution to seepage problems caused by cracks at the corners of new and old concrete interfaces, offering favorable conditions for the safe operation and subsequent maintenance of the dike. Attached Figure Description

[0016] The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a front view of the water hose device of the present invention in its installation state.

[0018] Figure 2 for Figure 1 Side view of the water hose stop device in its installation state.

[0019] Figure 3 for Figure 1 Cross-sectional view of the water stop device at point aa.

[0020] Figure 4 for Figure 1 Cross-sectional view of the stop hose device at point bb. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. 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.

[0022] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] This embodiment provides a flood control dike waterstop device, see reference. Figure 1-4 ,include:

[0024] A waterstop 4 is installed at the corner of the vertical retaining wall 1 and the base plate 2 at the leakage channel 3. A pressure plate 5 is also provided on the surface of the waterstop 4. Both the waterstop 4 and the pressure plate 5 are laid along the corner of the vertical retaining wall 1 and the base plate 2. The waterstop 4 is L-shaped, with its sides adhering to the surface of the vertical retaining wall 1 and its bottom adhering to the surface of the base plate 2, pointing towards the leakage channel 3 at the corner. The pressure plate 5 has the same shape as the waterstop 4, with its sides adhering to the sides of the waterstop 4 and its bottom adhering to the bottom of the waterstop 4. The pressure plate 5 and the waterstop 4 are fixedly connected to the vertical retaining wall 1 and the base plate 2 respectively by expansion bolts 9 to seal the leakage channel 3.

[0025] To enhance the sealing and seepage prevention effect, a precast concrete block 6 is installed above the pressure plate 5. The precast concrete block 6 can compact the waterstop 4, applying pressure to it to compact it and increase the sealing effect. This structure ensures that the waterstop 4 is under good pressure to more effectively prevent water penetration.

[0026] Through the above technical solution, the flood control dike waterstop device proposed in this invention adopts a modular structure. The sealing component, consisting of waterstop 4, pressure plate 5, and precast concrete blocks 6, is movably connected to the foundation surfaces of the vertical retaining wall 1 and the base plate 2 via expansion bolts 9. The overall installation is convenient, and it allows for individual installation in localized seepage areas, as well as subsequent replacement of the waterstop 4. It provides a better solution to seepage problems caused by cracks at the corners of new and old concrete interfaces, offering favorable conditions for the safe operation and subsequent maintenance of the dike.

[0027] In a preferred embodiment, the precast concrete block 6 is further provided with a handle 7 for easy installation. The handle 7 is pre-embedded in the precast concrete block 6 during the pouring of the concrete block 6. The handle 7 is firmly welded to the main reinforcement of the precast concrete block 6, which facilitates the installation and handling of the precast concrete block 6 in the later stage. In use: after lifting the precast concrete block 6 with the handle 7, it is installed at the intersection of the bottom and side of the pressure plate 5. The inclined surface of the trapezoidal section of the precast concrete block 6 should have good contact with the surface of the vertical pressure plate 11 and exert a certain pre-pressure on the vertical pressure plate 11.

[0028] In a preferred embodiment, considering that the shape of the precast concrete block 6 may interfere with the expansion bolts 9 during installation, several channels 8 are provided at the points of interference between the precast concrete block 6 and the expansion bolts 9. Specifically, after manufacturing the precast concrete block 6, grooves are cut on the sides and bottom of the precast block. The spacing of the groove channels 8 is consistent with the distance between the expansion bolts 9, and the width and depth of the grooves meet the installation requirements of the expansion bolts 9. The plane formed by the center line of the grooves 8 of the precast concrete block 6 coincides with the installation plane of the positioning center line of the expansion bolts 9 of the retaining wall and the base plate 2.

[0029] In one specific embodiment, the material selection for the waterstop 4 needs to consider the elasticity, high temperature resistance, corrosion resistance, and flexibility required for the waterstop 4 to ensure a good sealing effect. Therefore, this embodiment provides the following implementation options:

[0030] Rubber structural components: Rubber has excellent elasticity and durability.

[0031] Polyurethane structural components: possess good flexibility and corrosion resistance.

[0032] Other polymer structural components: including materials such as PVC and PE, all of which can provide good waterproofing for sealing cracks and joints.

[0033] In one specific embodiment, regarding the structural shape of the waterstop 4, the waterstop 4 is arranged in an L-shape, with a rectangular cross-section at the bottom horizontally and a trapezoidal cross-section on the sides vertically, with a slope i > 1:10 for the trapezoidal slope. This trapezoidal slope structure enhances the compressive effect of the waterstop 4.

[0034] In one specific embodiment, regarding the structural shape of the pressure plate 5, the pressure plate 5 is composed of a bottom pressure plate 10 and a vertical pressure plate 11. The bottom pressure plate 10 is pressed onto the bottom of the waterstop 4, and the vertical pressure plate 11 is pressed onto the side of the waterstop 4.

[0035] In one specific embodiment, regarding the shape selection of the precast concrete block 6, the cross-sectional shape of the precast concrete block 6 is trapezoidal, and the slope of the trapezoidal slope i > 1:10. The width of the bottom edge of the precast concrete block 6 is the same as the width of the bottom pressure plate 10, and the width of the inclined side of the precast concrete block 6 is the same as the width of the vertical pressure plate 11.

[0036] In one specific embodiment, regarding the installation method and structure of the expansion bolts 9, the waterstop 4 has the same number and positioning of drilled holes as the expansion bolts 9. The bottom pressure plate 10 and the vertical pressure plate 11 respectively have the same number and positioning of drilled holes in the bottom pressure plate 10 and the retaining wall pressure plate as the bottom of the waterstop 4 and the retaining wall portion. The expansion bolts 9 pass through the drilled holes in the bottom pressure plate 10 and the retaining wall pressure plate in sequence, and then pass through the drilled holes on the waterstop 4, and are fixed with nuts. A square beveled washer 12 is installed below the nut to achieve connection with the vertical retaining wall 1 and the base plate 2.

[0037] Furthermore, the diameter of the drill hole for the waterstop 4 should be slightly smaller than the diameter of the bolt, so as to achieve a tight water-stopping effect through interference fit.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flood control dike waterstop device, installed at the seepage channel (3) at the corner of a vertical retaining wall (1) and a base plate (2), characterized in that, include: Waterstop (4) is L-shaped, with its side attached to the surface of the vertical retaining wall (1) and its bottom attached to the surface of the base plate (2), and the corner pointing to the leakage channel (3); a pressure plate (5) is provided above the waterstop (4), and a precast concrete block (6) is provided above the pressure plate (5). The pressure plate (5) and the waterstop (4) are fixedly connected to the vertical retaining wall (1) and the base plate (2) respectively by expansion bolts (9) to seal the leakage channel (3).

2. The flood control dike waterstop device according to claim 1, characterized in that, The precast concrete block (6) is also equipped with a handle (7) for easy installation. The handle (7) is firmly welded to the main reinforcement of the precast concrete block (6).

3. The flood control dike waterstop device according to claim 1, characterized in that, Grooves are cut on the sides and bottom of the precast concrete block (6), with the spacing of the groove channels (8) matching the distance of the expansion bolts (9), and the width and depth of the grooves matching the size of the expansion bolts (9).

4. A flood control dike waterstop device according to claim 3, characterized in that, The plane formed by the center line of the slotted channel (8) of the precast concrete block (6) coincides with the installation plane of the positioning center line of the expansion bolts (9) of the vertical retaining wall (1) and the base plate (2).

5. A flood control dike waterstop device according to claim 1, characterized in that, The waterstop (4) is made of polymer structural components.

6. A flood control dike waterstop device according to claim 1, characterized in that, The waterstop (4) is arranged in an L-shape, with a rectangular cross-section at the bottom and a trapezoidal cross-section at the side. The slope of the trapezoidal slope is i > 1:

10.

7. A flood control dike waterstop device according to claim 6, characterized in that, The pressure plate (5) is composed of a bottom pressure plate (10) and a vertical pressure plate (11). The bottom pressure plate (10) is pressed onto the bottom of the waterstop (4), and the vertical pressure plate (11) is pressed onto the side of the waterstop (4).

8. A flood control dike waterstop device according to claim 7, characterized in that, The precast concrete block (6) has a trapezoidal cross-sectional shape with a slope of i > 1:

10. The width of the bottom edge of the precast concrete block (6) is the same as the width of the bottom pressure plate (10), and the width of the inclined side of the precast concrete block (6) is the same as the width of the vertical pressure plate (11).