A structure for repairing cracks in earth-rock dams

By installing pressure plates, positioning rods, support plates, and connecting rods at the cracks in earth-rock dams, the problems of high cost and inconvenient installation caused by the complexity of existing earth-rock dam crack repair structures have been solved, achieving lower cost and more stable repair results.

CN224338175UActive Publication Date: 2026-06-09CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing crack repair structures for earth-rock dams are complex, resulting in high production costs, inconvenient installation, and poor practicality.

Method used

The structure employs a pressure plate, positioning rod, support plate, abutment plate, and connecting rod. Through a simple design, it achieves the connection and fixation of cracks in earth-rock dams, and utilizes a repair layer to enhance the fixation effect.

Benefits of technology

It reduced production costs, simplified the installation process, and improved the stability and practicality of crack repair in earth-rock dams.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a structure for repairing cracks in an earth-rock dam, including an earth-rock dam body; it also includes: a lower trapezoidal groove at the lower end of the inner side of the earth-rock dam body, and an upper trapezoidal groove at the upper end of the lower trapezoidal groove; wherein, a pressure plate is provided on one side of the bottom surface of the upper trapezoidal groove, a positioning rod is fixedly connected to one side of the bottom surface of the pressure plate, a vertical plate is fixedly connected to one side of the top surface of the pressure plate, a support plate is fixedly connected to one end of the bottom surface of the pressure plate, and an abutment plate is fixedly connected to one end of the top surface of the pressure plate; wherein, a connecting rod is provided on one side of the positioning rod, a compacted layer is provided below the connecting rod, and a repair layer is fixedly connected to the top surface of the compacted layer. By setting up a pressure plate, positioning rod, support plate, abutment plate, and connecting rod, the structure is simple, thus reducing its production cost and making installation more convenient during use. Furthermore, the repair layer further enhances the fixing effect on the connecting rod, making the repair effect of the earth-rock dam cracks more stable.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a structure for repairing cracks in earth-rock dams. Background Technology

[0002] Repairing cracks in earth-rock dams plays a crucial role. It prevents cracks from expanding and deepening, avoiding serious accidents such as landslides and dam failures caused by crack development, and ensuring the structural safety and stability of the dam. Simultaneously, repairing cracks prevents rainwater and reservoir water from seeping into the dam body, preventing soil softening and strength reduction, eliminating the risk of seepage damage, extending the service life of the earth-rock dam, and ensuring its continued function in flood control, irrigation, and water supply.

[0003] Patent document CN110952509B discloses a crack repair structure for earth-rock dams, including a triangular groove at the crack. Several mounting holes are symmetrically formed on the inner walls of both sides of the triangular groove, and a fixing sleeve is fixed within each mounting hole. A reinforcing rod is installed between two symmetrical fixing sleeves. The triangular groove is filled with a concrete layer, the top surface of which is lower than the bottom surface of the reinforcing rod. A layer of sand and gravel is laid on top of the concrete layer. The fixing sleeve includes an outer shell, with two first springs installed at the bottom of the outer shell. Two pressure plates are connected to the first springs, and the included angle between the axes of the two pressure plates is 30°. The reinforcing rod includes a rod body, with threaded ends at both ends. A plug is axially connected to the end, and the plug has a insertion hole for engaging with the pressure plates. A sealing ring is fixed to the outer edge of the end for press-fitting and sealing contact with the outer shell. This invention can improve upon the shortcomings of existing technologies, enhance the overall rigidity of the dam body, and ensure its resistance to deformation and cracking. However, this patent still has the following problems in practical use:

[0004] This repair structure repairs cracks in earth-rock dams by setting up end caps, plugs, rods, and shells. However, due to the complexity of the repair structure, its production cost is high and its installation is inconvenient, resulting in poor practicality.

[0005] Therefore, a crack repair structure for earth-rock dams is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a repair structure for cracks in earth-rock dams, in order to solve the problem mentioned in the background art that the current repair structure repairs cracks in earth-rock dams by setting up end caps, plugs, rods, shells, etc., but due to the complexity of the repair structure, the production cost of the repair structure is high and the installation is inconvenient, thus making the practicality of the earth-rock dam crack repair structure poor.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a structure for repairing cracks in an earth-rock dam, comprising an earth-rock dam body;

[0008] Also includes:

[0009] The lower end of the inner side of the earth-rock dam body is provided with a lower trapezoidal groove, the upper end of the lower trapezoidal groove is provided with an upper trapezoidal groove, one side of the bottom surface of the upper trapezoidal groove is provided with an insertion hole, and one side of the upper end of the upper trapezoidal groove is provided with a positioning hole.

[0010] Among them, a pressure plate is provided on one side of the bottom surface of the upper trapezoidal groove, a positioning rod is fixedly connected to one side of the bottom surface of the pressure plate, a vertical plate is fixedly connected to one side of the top surface of the pressure plate, a support plate is fixedly connected to one end of the bottom surface of the pressure plate, an abutment plate is fixedly connected to one end of the top surface of the pressure plate, and a positioning bolt is installed on one side of the abutment plate;

[0011] The positioning rod has a connecting rod on one side, a connecting hole on one side of the connecting rod, a compaction layer below the connecting rod, and a repair layer fixedly connected to the top surface of the compaction layer.

[0012] Preferably, the lower trapezoidal groove and the upper trapezoidal groove are configured as isosceles trapezoids with the upper base facing downwards, and the middle of the bottom surface of the upper trapezoidal groove is connected to the top surface of the lower trapezoidal groove.

[0013] Preferably, the positioning holes are symmetrically arranged on the sides of the upper trapezoidal groove, and the insertion holes are symmetrically opened on both sides of the bottom surface of the upper trapezoidal groove.

[0014] Preferably, the pressure plate is inserted into the socket through a positioning rod passing through a connecting hole on the connecting rod.

[0015] Preferably, the support plates are symmetrically arranged on both sides of one end of the pressure plate, and the support plates are in contact with the inclined surface of the lower trapezoidal groove.

[0016] Preferably, the abutment plate is in contact with the inclined surface of the upper trapezoidal groove, and the abutment plate is threadedly connected to the positioning hole by a positioning bolt.

[0017] Preferably, the compacted layer is fixedly connected to the middle of the lower trapezoidal groove, the repair layer is fixedly connected to the middle of the upper trapezoidal groove, and the repair layer is in contact with the top surface of the pressure plate, the support plate, and the abutment plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This earth-rock dam crack repair structure, by setting up a pressure plate, positioning rod, support plate, abutment plate and connecting rod, has a simple structure, thus reducing its production cost and making it easier to install during use. Furthermore, the repair layer further enhances the fixing effect on the connecting rod, making the repair effect of the earth-rock dam crack more stable. The specific details are as follows:

[0019] 1. The earth-rock dam crack repair structure achieves the connection of earth-rock dam cracks by setting pressure plates, positioning rods, support plates, abutment plates and connecting rods, which makes the structure simple, thus reducing its production cost and making it more convenient to install during use, thereby making the earth-rock dam crack repair structure more practical.

[0020] 2. The earth-rock dam crack repair structure, through the setting of pressure plate, vertical rod, support plate and abutment plate, facilitates the compression of the pressure plate, vertical rod, support plate and abutment plate to one side of the lower trapezoidal groove and upper trapezoidal groove through the repair layer, which further enhances the fixing effect of the connecting rod, making the repair effect of earth-rock dam crack more stable, and thus making the earth-rock dam crack repair structure more practical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation structure in front cross section of this utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-section structure of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a top view of the pressure plate structure of this utility model;

[0025] Figure 5 This is a bottom view of the pressure plate structure of this utility model.

[0026] In the diagram: 1. Earth-rock dam body; 2. Lower trapezoidal groove; 3. Upper trapezoidal groove; 4. Insertion hole; 5. Positioning hole; 6. Pressure plate; 7. Positioning rod; 8. Vertical plate; 9. Support plate; 10. Connecting rod; 11. Connecting hole; 12. Abutment plate; 13. Positioning bolt; 14. Compacted layer; 15. Repair layer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5This utility model provides a technical solution: a crack repair structure for an earth-rock dam, including an earth-rock dam body 1; it also includes: a lower trapezoidal groove 2 opened at the lower end of the inner side of the earth-rock dam body 1, an upper trapezoidal groove 3 opened at the upper end of the lower trapezoidal groove 2, an insertion hole 4 opened on one side of the bottom surface of the upper trapezoidal groove 3, and a positioning hole 5 opened on one side of the upper end of the upper trapezoidal groove 3; the lower trapezoidal groove 2 and the upper trapezoidal groove 3 are configured as isosceles trapezoids with the upper base side pointing downwards, and the middle of the bottom surface of the upper trapezoidal groove 3 is connected to the top surface of the lower trapezoidal groove 2; the positioning holes 5 are symmetrically arranged on the sides of the upper trapezoidal groove 3, and the insertion holes 4 are symmetrically opened on both sides of the bottom surface of the upper trapezoidal groove 3; the insertion holes 4 facilitate the limiting of the end of the connecting rod 10, thereby facilitating the connection between the connecting rod 10 and the crack of the earth-rock dam, thereby achieving support for the crack of the earth-rock dam, thus making the crack repair structure of the earth-rock dam more stable.

[0029] The upper trapezoidal groove 3 has a pressure plate 6 on one side of its bottom surface, a positioning rod 7 fixedly connected to one side of its bottom surface, a vertical plate 8 fixedly connected to one side of its top surface, a support plate 9 fixedly connected to one end of its bottom surface, and an abutment plate 12 fixedly connected to one end of its top surface. A positioning bolt 13 is installed on one side of the abutment plate 12. The pressure plate 6 is inserted into the insertion hole 4 through the positioning rod 7 via the connecting hole 11 on the connecting rod 10. The support plates 9 are symmetrically arranged on both sides of one end of the pressure plate 6, providing support. Plate 9 fits against the inclined surface of the lower trapezoidal groove 2; the abutment plate 12 fits against the inclined surface of the upper trapezoidal groove 3, and the abutment plate 12 is threadedly connected to the positioning hole 5 by the positioning bolt 13; by setting the vertical plate 8, it is easy for the vertical plate 8 and the abutment plate 12 to cooperate and limit the position of the pressure plate 6, thereby preventing the pressure plate 6 from shifting. In addition, the setting of the support plate 9 can better increase the contact effect between the support plate 9 and the lower trapezoidal groove 2, making the earth-rock dam crack repair structure more stable during use.

[0030] The positioning rod 7 has a connecting rod 10 on one side, and a connecting hole 11 is opened on one side of the connecting rod 10. A compacted layer 14 is provided below the connecting rod 10, and a repair layer 15 is fixedly connected to the top surface of the compacted layer 14. The compacted layer 14 is fixedly connected to the middle of the lower trapezoidal groove 2, and the repair layer 15 is fixedly connected to the middle of the upper trapezoidal groove 3. The repair layer 15 is in contact with the top surface of the pressure plate 6, the support plate 9, and the abutment plate 12. The repair layer 15 is made of concrete. The setting of the repair layer 15 makes it easy to apply pressure to the position of the pressure plate 6, the support plate 9, and the abutment plate 12, and at the same time lock the distance between the pressure plates 6, so that the support of the earth-rock dam crack repair structure is stronger.

[0031] Working principle: When using this earth-rock dam crack repair structure, firstly, the earth-rock dam body 1 is developed into the shape of a lower trapezoidal groove 2 and an upper trapezoidal groove 3, and insertion holes 4 and positioning holes 5 are opened.

[0032] Next, align the connecting rod 10 with the insertion hole 4 through the connecting hole 11, and insert the pressure plate 6 through the positioning rod 7 through the connecting hole 11 into the insertion hole 4. Make the support plate 9 fit against the inner wall of the lower trapezoidal groove 2, and the abutment plate 12 fit against the inner wall of the upper trapezoidal groove 3. Connect the positioning plate 12 to the positioning hole 5 through the positioning bolt 13.

[0033] Finally, the compacted layer 14 is added to the lower trapezoidal groove 2, and the repair layer 15 is added to the upper trapezoidal groove 3, so that the repair layer 15 limits the position of the pressure plate 6 and the vertical plate 8, and pushes the support plate 9 and the abutment plate 12 to fit into the lower trapezoidal groove 2 and the upper trapezoidal groove 3 respectively.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A structure for repairing cracks in an earth-rock dam, comprising an earth-rock dam body (1); Its features are, Also includes: The lower end of the inner side of the earth-rock dam body (1) is provided with a lower trapezoidal groove (2), the upper end of the lower trapezoidal groove (2) is provided with an upper trapezoidal groove (3), one side of the bottom surface of the upper trapezoidal groove (3) is provided with an insertion hole (4), and one side of the upper end of the upper trapezoidal groove (3) is provided with a positioning hole (5). Among them, a pressure plate (6) is provided on one side of the bottom surface of the upper trapezoidal groove (3), a positioning rod (7) is fixedly connected to one side of the bottom surface of the pressure plate (6), a vertical plate (8) is fixedly connected to one side of the top surface of the pressure plate (6), a support plate (9) is fixedly connected to one end of the bottom surface of the pressure plate (6), an abutment plate (12) is fixedly connected to one end of the top surface of the pressure plate (6), and a positioning bolt (13) is installed on one side of the abutment plate (12). Among them, a connecting rod (10) is provided on one side of the positioning rod (7), a connecting hole (11) is provided on one side of the connecting rod (10), a compaction layer (14) is provided below the connecting rod (10), and a repair layer (15) is fixedly connected to the top surface of the compaction layer (14).

2. The structure for repairing cracks in an earth-rock dam according to claim 1, characterized in that: The lower trapezoidal groove (2) and the upper trapezoidal groove (3) are configured as isosceles trapezoids with the upper base facing downwards. The middle of the bottom surface of the upper trapezoidal groove (3) is connected to the top surface of the lower trapezoidal groove (2).

3. The structure for repairing cracks in an earth-rock dam according to claim 1, characterized in that: The positioning holes (5) are symmetrically arranged on both sides of the upper trapezoidal groove (3), and the insertion holes (4) are symmetrically opened on both sides of the bottom surface of the upper trapezoidal groove (3).

4. The structure for repairing cracks in an earth-rock dam according to claim 1, characterized in that: The pressure plate (6) is inserted into the socket (4) through the connecting hole (11) on the connecting rod (10) via the positioning rod (7).

5. The structure for repairing cracks in an earth-rock dam according to claim 1, characterized in that: The support plate (9) is symmetrically arranged on both sides of one end of the pressure plate (6), and the support plate (9) is in contact with the inclined surface of the lower trapezoidal groove (2).

6. The structure for repairing cracks in an earth-rock dam according to claim 1, characterized in that: The abutment plate (12) is in contact with the inclined surface of the upper trapezoidal groove (3), and the abutment plate (12) is threadedly connected to the positioning hole (5) by the positioning bolt (13).

7. The structure for repairing cracks in an earth-rock dam according to claim 1, characterized in that: The compacted layer (14) is fixedly connected to the middle of the lower trapezoidal groove (2), the repair layer (15) is fixedly connected to the middle of the upper trapezoidal groove (3), and the repair layer (15) is in contact with the top surface of the pressure plate (6), the support plate (9) and the abutment plate (12).