Dam body panel surface water stopping and ice damage preventing device

By using an anti-icing device consisting of airbags and lifting equipment on the reservoir panel, the problem that the existing anti-collision strips cannot cope with the pull-out force of ice layers has been solved, enabling safe operation of reservoirs in high-altitude and cold regions without affecting panel construction and load-bearing performance.

CN224119508UActive Publication Date: 2026-04-14NORTHWEST ENGINEERING CORPORATION LIMITED
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHWEST ENGINEERING CORPORATION LIMITED
Filing Date
2025-04-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing technologies cannot effectively cope with the pull-out force of ice layers in reservoirs in high-altitude and cold regions. Furthermore, the construction is complex or may affect the stress performance of the panels, thus failing to fully guarantee the safety of the water-stop structure.

Method used

The anti-icing device consists of airbags and a lifting device. The upper layer of the airbag is filled with air for cushioning, and the lower layer is filled with counterweight fine sand to improve stability. It covers the panel and water-stop structure to reduce the impact and pulling force of the ice layer. A heating mechanism can be selected to melt the ice layer.

Benefits of technology

Without damaging the panel structure, the device effectively protects the water-stopping structure, reduces construction complexity and cost, is reusable, and is safe and environmentally friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a dam body panel surface water stopping and ice damage preventing device, and relates to the technical field of dam body protection, the dam body panel surface water stopping and ice damage preventing device comprises an air bag and a lifting appliance, one end of the lifting appliance is connected with the air bag, and the other end of the lifting appliance is used for being connected with a rivet on a wave wall; the air bag is of a double-layer structure and comprises an air bag upper layer and an air bag lower layer, the air bag upper layer is used for being filled with air, the air bag lower layer is used for being filled with counterweight fine sand, and the air bag lower layer is used for abutting against a panel and a surface water stop structure located on the panel. Compared with the prior art, the dam body panel surface water stopping and ice damage preventing device does not need to add a cast-in-place concrete anti-collision ridge or drill holes to install prefabricated anti-collision strips on the panel, does not damage the panel structure, and only needs to place the device on the panel surface of a water level amplitude variation area and a surface water stopping structure in the freezing period in winter, so that the water stopping and ice damage preventing device can be used for preventing ice damage. And the ice layer cannot be in contact with the surface water stop structure, so that the effect of protecting the surface water stop structure is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of dam protection technology, and more specifically, to a device for preventing water and ice damage on the surface of a dam panel. Background Technology

[0002] When reservoirs in high-altitude and cold regions operate during the winter ice-covered period, water level fluctuations cause the ice surface to rise and fall, and the ice layer exerts compressive and dragging forces on the water-stop structure of the panel surface. To address this, existing technical solutions involve installing anti-collision strips on both sides of the surface water-stop structure. This measure mitigates the impact, pull-out, and tearing effects of the ice layer on the water-stop structure, thereby protecting the surface water-stop structure. The implementation of this solution helps maintain the sealing performance of the panel structure joints and ensures the safe operation of the reservoir dam.

[0003] However, the existing technical solutions using anti-collision blocks to block ice impacts have significant shortcomings. Both cast-in-place concrete anti-collision blocks and precast anti-collision blocks have obvious problems. Cast-in-place concrete anti-collision blocks interfere with the overall slip-form construction process of the panel, increasing the complexity and difficulty of construction operations. While precast anti-collision blocks avoid the problems of cast-in-place construction, they require drilling holes in the panel and installation with expansion bolts, which can adversely affect the overall stress performance of the panel.

[0004] Furthermore, regardless of the type of anti-collision strips used, they can only protect against the squeezing and impact forces of ice, and cannot effectively cope with the pulling forces of ice. This makes the protective effect of anti-collision strips on the water-stop structure of the panel surface significantly limited, and cannot fully guarantee the safety of the structure. Utility Model Content

[0005] The problem this invention aims to solve is: how to protect the surface waterproofing structure on the panel without damaging the panel itself.

[0006] This utility model provides a water-stopping and ice-prevention device for the surface of a dam panel, comprising: an airbag and a lifting device, one end of which is connected to the airbag and the other end of which is connected to a rivet on a wave-breaking wall; the airbag has a double-layer structure, comprising an upper airbag layer and a lower airbag layer, the upper airbag layer being filled with air and the lower airbag layer being filled with counterweight fine sand, and the lower airbag layer being used to abut against the panel and the surface water-stopping structure located on the panel.

[0007] The present invention provides a water-stopping and ice-prevention device for the surface of a dam panel, which, compared with the prior art, has the following beneficial effects, but is not limited to:

[0008] The dam panel surface water-stopping and ice-prevention device of this utility model has one end of a lifting device connected to an airbag and the other end connected to a rivet on the wave-breaking wall. Thus, the airbag can cover the panel and the upper part of the surface water-stopping structure in the water level fluctuation zone via the lifting device. The upper layer of the airbag is filled with air to provide contact with the ice layer and act as a buffer, while the lower layer is filled with counterweight fine sand to provide counterweight and improve the stability of the airbag. Compared with existing technologies, this device eliminates the need for adding cast-in-place concrete anti-collision barriers or drilling holes to install prefabricated anti-collision strips on the panel, does not affect the panel pouring period, does not increase the cost of irregularly shaped formwork, and does not damage the panel structure. During the winter freezing period, this device is simply placed on the panel surface and the surface water-stopping structure in the water level fluctuation zone, preventing the ice layer from contacting the surface water-stopping structure. The airbag's elastic buffering function reduces the impact and pulling force of the ice layer, thus protecting the surface water-stopping structure.

[0009] Optionally, the water-stopping and ice-prevention device on the surface of the dam panel also includes a heating mechanism, which is used to heat the counterweight fine sand in the lower layer of the airbag.

[0010] Optionally, the heating mechanism includes a solar panel and a heating wire. The solar panel is disposed on the end face of the airbag opposite to the panel, the heating wire is electrically connected to the solar panel, and the heating wire is laid in the lower layer of the airbag.

[0011] Optionally, multiple heating wires are provided, and the multiple heating wires are arranged at intervals in the lower layer of the airbag.

[0012] Optionally, the airbag is provided with an inflation port, which is connected to the upper layer of the airbag.

[0013] Optionally, the inflation port is located at one end of the airbag near the wave-breaking wall.

[0014] Optionally, the airbag is provided with a sand-filling port, which communicates with the lower layer of the airbag.

[0015] Optionally, the sand filling port is located at one end of the airbag near the wave-breaking wall.

[0016] Optionally, the lifting device is a lifting rope, and the lifting rope is connected to the sand loading port.

[0017] Optionally, the airbag is made of rubber. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the water-stopping and ice-prevention device on the surface of the dam panel according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0020] Figure 3 for Figure 1 BB section view.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Airbag; 11. Upper layer of airbag; 12. Lower layer of airbag; 13. Inflation port; 14. Sand filling port; 2. Solar panel; 3. Heating wire; 4. Suspension rope; 5. Counterweight fine sand; 6. Panel; 7. Surface water-stopping structure; 8. Wave wall; 9. Rivet; 100. Ice layer; 200. Dam body. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0027] Furthermore, in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow of the Z-axis points) represents up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents down.

[0028] It should also be noted that the aforementioned Z-axis designation is only for the purpose of facilitating the description of this utility model and simplifying the description, and is 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. Therefore, it should not be construed as a limitation on this utility model.

[0029] like Figures 1 to 3 As shown, the dam panel surface water-stopping and ice-prevention device of this utility model embodiment includes: an airbag 1 and a lifting device. One end of the lifting device is connected to the airbag 1, and the other end is used to connect to the rivet 9 on the wave wall 8. The airbag 1 has a double-layer structure, which includes an upper airbag layer 11 and a lower airbag layer 12. The upper airbag layer 11 is used to fill air, and the lower airbag layer 12 is used to fill counterweight fine sand 5. The lower airbag layer 12 is used to abut against the panel 6 and the surface water-stopping structure 7 located on the panel 6.

[0030] In this embodiment, in conjunction with the appendix Figure 1 As shown, one end of the lifting device (the lifting rope 4 mentioned later) is connected to the airbag 1, and the other end is connected to the rivet 9 on the wave wall 8. In this way, the airbag 1 can be covered by the lifting device to cover the panel 6 (the inclined surface of the dam body 200) and the upper part of the surface water-stopping structure 7 in the water level fluctuation zone. The upper layer 11 of the airbag 1 is filled with air to contact the ice layer 100 and play a buffering role. The lower layer 12 of the airbag is filled with counterweight fine sand 5 to play a counterweight role and improve the stability of the airbag 1. Compared with existing technologies, this invention eliminates the need for adding cast-in-place concrete crash barriers or drilling holes to install prefabricated crash strips on the panel. It does not affect the panel pouring schedule, does not increase the cost of irregularly shaped templates, and does not damage the panel structure. During the winter freezing period, this device is simply placed on the panel surface and surface waterstop structure in the water level fluctuation zone, preventing the ice layer from contacting the surface waterstop structure. The airbag has an elastic buffering function, which reduces the impact and pulling force of the ice layer, thus protecting the surface waterstop structure. During the non-freezing period, this device is easy to remove and can be reinstalled in the next freezing period. The device is reusable, safe, and environmentally friendly.

[0031] Optionally, the water-stopping and ice-prevention device on the surface of the dam panel also includes a heating mechanism, which is used to heat the counterweight fine sand 5 in the lower layer 12 of the airbag.

[0032] In this embodiment, the heating mechanism can heat the counterweight fine sand 5 in the lower layer 12 of the airbag, thereby melting the ice layer around the airbag 1.

[0033] Optionally, the heating mechanism includes a solar panel 2 and a heating wire 3. The solar panel 2 is disposed on the end face of the airbag 1 opposite to the panel 6. The heating wire 3 is electrically connected to the solar panel 2 and is laid in the lower layer 12 of the airbag.

[0034] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, the solar panel 2 can be connected to the end face of the airbag 1 away from the panel 6 by means of adhesive bonding or clips, so that the solar panel 2 can receive sunlight and generate electricity. After generating electricity, the solar panel 2 is used to heat the heating wire 3, and the heating wire 3 can heat the counterweight fine sand 5 in the lower layer 12 of the airbag, which plays a role in melting the surrounding ice layer.

[0035] Optionally, multiple heating wires 3 are provided, and the multiple heating wires 3 are arranged at intervals within the lower layer 12 of the airbag.

[0036] In this embodiment, in conjunction with the appendix Figure 3 As shown, multiple heating wires 3 are spaced apart in the lower layer 12 of the airbag. The number of heating wires 3 can be adjusted according to the actual size of the airbag 1 to ensure that the counterweight fine sand 5 in the lower layer 12 of the airbag is heated evenly.

[0037] Optionally, the airbag 1 is provided with an inflation port 13, which is connected to the upper layer 11 of the airbag.

[0038] In this embodiment, in conjunction with the appendix Figure 2 As shown, an inflation port 13 is provided on the airbag 1, which communicates with the interior of the upper layer 11 of the airbag. Air can be injected into the upper layer 11 of the airbag through the inflation port 13.

[0039] Optionally, the inflation port 13 is located at one end of the airbag 1 near the wave-breaking wall 8.

[0040] In this embodiment, in conjunction with the appendix Figure 2 As shown, the air inlet 13 is located at one end near the wave-breaking wall 8, so that the air inlet 13 can be positioned above the ice layer 100 (see attached diagram). Figure 1 (in the positive direction of the Z-axis), which serves to protect the air inlet 13.

[0041] Optionally, the airbag 1 is provided with a sand filling port 14, which is connected to the lower layer 12 of the airbag.

[0042] In this embodiment, in conjunction with the appendix Figure 2 As shown, a sand filling port 14 is provided on the airbag 1, which communicates with the interior of the lower layer 12 of the airbag. The lower layer 12 of the airbag can be filled with counterweight fine sand 5 through the sand filling port 14.

[0043] Optionally, the sand filling port 14 is located at one end of the airbag 1 near the wave-breaking wall 8.

[0044] In this embodiment, in conjunction with the appendix Figure 2 As shown, the sand inlet 14 is located at one end near the breakwater 8, so that the sand inlet 14 can be positioned above the ice layer 100 (see attached diagram). Figure 1 (in the positive direction of the Z-axis), which serves to protect the sand loading port 14.

[0045] Optionally, the lifting device is a lifting rope 4, and the lifting rope 4 is connected to the sand loading port 14.

[0046] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, one end of the hoisting rope 4 can be tied to the sand filling port 14 of the airbag 1, and the other end can be tied to the rivet 9 on the wave-breaking wall 8. The airbag 1 can be slowly lowered to the panel 6 and the surface water-stop structure 7 of the water level fluctuation area that needs to be protected by the hoisting rope 4.

[0047] Optionally, the airbag 1 is made of rubber (e.g., black rubber with good airtightness).

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0049] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A device for preventing waterlogging and ice damage on the surface of a dam panel, characterized in that, include: An airbag (1) and a lifting device, one end of which is connected to the airbag (1) and the other end is used to connect to a rivet (9) on the wave-breaking wall (8); the airbag (1) has a double-layer structure, which includes an upper airbag layer (11) and a lower airbag layer (12). The upper airbag layer (11) is used to fill air, and the lower airbag layer (12) is used to fill counterweight fine sand (5). The lower airbag layer (12) is used to abut against the panel (6) and the surface water-stop structure (7) located on the panel (6).

2. The dam panel surface water-stopping and ice-prevention device according to claim 1, characterized in that, It also includes a heating mechanism for heating the counterweight sand (5) in the lower layer (12) of the airbag.

3. The dam panel surface water-stopping and ice-prevention device according to claim 2, characterized in that, The heating mechanism includes a solar panel (2) and a heating wire (3). The solar panel (2) is disposed on the end face of the airbag (1) away from the panel (6). The heating wire (3) is electrically connected to the solar panel (2) and is laid in the lower layer (12) of the airbag.

4. The water-stopping and ice-prevention device for the dam panel surface according to claim 3, characterized in that, Multiple heating wires (3) are provided, and the multiple heating wires (3) are arranged at intervals in the lower layer (12) of the airbag.

5. The water-stopping and ice-prevention device for the dam panel surface according to claim 1, characterized in that, The airbag (1) is provided with an inflation port (13), which is connected to the upper layer (11) of the airbag.

6. The dam panel surface water-stopping and ice-prevention device according to claim 5, characterized in that, The inflation port (13) is located at one end of the airbag (1) near the wave-breaking wall (8).

7. The water-stopping and ice-prevention device for the dam panel surface according to claim 1, characterized in that, The airbag (1) is provided with a sand filling port (14), which is connected to the lower layer (12) of the airbag.

8. The water-stopping and ice-prevention device for the dam panel surface according to claim 7, characterized in that, The sand filling port (14) is located at one end of the airbag (1) near the wave-breaking wall (8).

9. The dam panel surface water-stopping and ice-prevention device according to claim 8, characterized in that, The lifting device is a lifting rope (4), and the lifting rope (4) is connected to the sand loading port (14).

10. The dam body panel surface water-stopping and ice-prevention device according to any one of claims 1-9, characterized in that, The airbag (1) is made of rubber.