Earth and rockfill dam anti-seepage water stop structure

Abstract

The utility model relates to the technical field of earth and rockfill dams, and discloses an earth and rockfill dam anti-seepage water stop structure which comprises a dam body, the left side and the right side of the outer wall of the dam body are fixedly connected with fixed long plates, the tops of the fixed long plates are fixedly connected with a water pump, the suction end of the water pump is communicated with a hose, and the inner wall of the hose is fixedly connected with a square short plate. A fixed short column is rotatably connected to the left side of the outer wall of the square short plate, an impeller is fixedly connected to the other end of the fixed short column, a cleaning brush is fixedly connected to the left side of the middle of the outer wall of the impeller, and a plurality of scraping plates are fixedly connected to the left side of the outer wall of the cleaning brush at equal intervals. According to the utility model, impurities on the hose are cleaned through the scraper blade, and the drainage efficiency is kept, so that the problems that the shear strength of soil is greatly reduced and a dam body is damaged due to the fact that water cannot be drained in time in the prior art when the water level in the dam is higher are solved.

Description

Technical Field

[0001] This utility model relates to the field of earth-rock dam technology, and in particular to an anti-seepage and water-stopping structure for earth-rock dams. Background Technology

[0002] Earth-rock dams are water-retaining structures built by layering and compacting soil, rock, and granular materials. They rely mainly on their own weight and the interaction between the soil and rock to maintain stability, thereby intercepting water flow, raising water levels, and forming reservoirs.

[0003] A search revealed a Chinese patent publication number: CN115928661A, which discloses a seepage prevention and water-stopping structure for an earth-rock dam, comprising a weakly weathered foundation and a strongly weathered foundation, wherein a rockfill layer is provided on top of the strongly weathered foundation, and a core wall is provided in the middle of the rockfill layer. This invention involves inserting a metal pipe into a concrete pile, fixing a ring of side pipes on the outer surface of the metal pipe, and adding a filter sleeve inside the metal pipe. This, combined with a suction box at the top of the core wall, allows for suction of the interior of the connecting frame. This, along with the suction of air from the inner pipe through the connecting pipe, reduces the air pressure inside the inner pipe, drawing air from inside the core wall into the side pipes and then into the inner pipe through the filter sleeve and filter holes. This reduces the air pressure inside the core wall, causing the clay to gradually adhere and gather, thus increasing the internal density of the core wall and preventing seepage caused by density reduction due to relaxation. This ensures that the core wall maintains good seepage prevention and water-stopping effects even after a certain number of years of use. However, in existing technologies, when the water level in the dam is high, water cannot be drained in time, leading to saturation of the dam soil, increased pore water pressure, reduced effective stress, and a significant decrease in the shear strength of the soil, ultimately causing damage to the dam. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a seepage prevention and water-stopping structure for earth-rock dams, aiming to improve the problem that in the existing technology, when the water level in the dam is high, water cannot be discharged in time, which will cause the dam soil to be in a saturated state, increase pore water pressure, reduce effective stress, and lead to a significant reduction in the shear strength of the soil, thus causing damage to the dam.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a seepage-proof and water-stopping structure for an earth-rock dam, comprising a dam body, with fixed long plates fixedly connected to both the left and right sides of the outer wall of the dam body, a water pump fixedly connected to the top of the fixed long plates, a hose connected to the suction end of the water pump, a square short plate fixedly connected to the inner wall of the hose, a fixed short column rotatably connected to the left side of the outer wall of the square short plate, an impeller fixedly connected to the other end of the fixed short column, a cleaning brush fixedly connected to the left side of the middle part of the outer wall of the impeller, multiple scrapers fixedly connected at equal intervals to the left side of the outer wall of the cleaning brush, and a protective mechanism installed on the top of the dam body, the protective mechanism being used to protect the dam body and reduce the risk of leakage of the dam body.

[0006] The above technical solution works as follows: after the water pump starts, it generates suction through its suction end. Since the suction end is connected to a hose with a filter screen, when the water flows through the filter screen, the filter screen plays a preliminary filtering role, intercepting larger particles of mud, sand, and debris in the water, preventing them from entering the water pump and causing blockage. As the water pump continues to work, the impeller rotates at high speed, which drives the cleaning brush and scraper to rotate together. When the scraper rotates, it cleans the impurities attached to the hose, preventing the hose from being blocked, ensuring that the drainage process is continuous and efficient, and timely draining any water that may accumulate around the dam, reducing the risk of leakage due to excessive water accumulation in the dam.

[0007] As a further description of the above technical solution:

[0008] The protective mechanism includes a fixing plate, which is installed on the top of the dam body. A fiberglass cloth is fixedly connected to the bottom of the fixing plate. An asphalt coating is provided on the top of the fiberglass cloth. A polyethylene film is provided on the top of the asphalt coating. A bolt is threaded to the top of the fixing plate. A monitoring device is installed on the left side of the outer wall of the dam body.

[0009] The above technical solution involves real-time monitoring of the dam's condition using a monitoring device to promptly identify and address potential hazards. The flexible geomembrane employs a multi-layered composite material structure: a polyethylene film as the outer layer, a modified asphalt coating as the inner layer, and fiberglass cloth as the bottom layer. These three layers are bonded together with hot melt adhesive, ensuring excellent waterproof performance and tensile strength. Anchor bolts are 50mm in diameter, 6m long, and spaced 2m x 2m apart. The steel mesh has a grid size of 15cm x 15cm and a steel bar diameter of 8mm. During construction, the geomembrane is first laid flat and wrinkle-free on the dam surface. Then, anchor bolts are driven into predetermined positions on the dam body, passing through the geomembrane and securely connected. Next, the steel mesh is welded according to the design drawings and bolted to the dam surface. Finally, a monitoring system is installed to enable remote monitoring.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the dam is threaded with a screw on the left side, and a warning sign is threaded onto the outer wall of the screw.

[0012] Through the above technical solution, the warning sign can serve as a warning and reminder to people in the surrounding area.

[0013] As a further description of the above technical solution:

[0014] A hollow box is fixedly connected to the top right side of the fixed long plate on the left, and a drawer is slidably connected inside the hollow box.

[0015] The above technical solution allows for the use of sliding drawers inside the hollow box to facilitate the storage of tools for daily use and maintenance.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the front side of the outer wall of the drawer.

[0018] The above technical solution provides a handle fixedly connected to the front of the outer wall of the drawer, which facilitates the opening and closing of the drawer for use by staff.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the handle is fixedly connected with an anti-slip sleeve.

[0021] The above technical solution, namely the anti-slip sleeve fixedly connected to the outer wall of the handle, can enhance the hand comfort of the staff when holding the handle and prevent the hand from slipping.

[0022] As a further description of the above technical solution:

[0023] A filter screen is installed at each adjacent end of the hose.

[0024] Through the above technical solution, the filter screen can filter out impurities in the water.

[0025] As a further description of the above technical solution:

[0026] A fixed base plate is fixedly connected to the left side of the outer wall of the dam body, and a protective shell is slidably connected to the top of the fixed base plate.

[0027] Through the above technical solution, the protective shell can play a role in protecting the monitoring device.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, after the water pump is started, its suction end generates suction force, which passes through a connected hose with a filter screen to perform preliminary filtration and intercept large particulate impurities. Then, the water flow inside the hose impacts the impeller, driving the cleaning brush and scraper to rotate. The scraper cleans the impurities on the hose, maintaining drainage efficiency. This avoids the problem that existing technologies cannot drain water in time when the water level in the dam is high, which would cause the dam soil to be in a saturated state, increase pore water pressure, reduce effective stress, and lead to a significant reduction in the shear strength of the soil, thus causing damage to the dam.

[0030] 2. In this utility model, the monitoring device monitors the dam's condition in real time and addresses potential hazards promptly. The flexible geomembrane is composed of a three-layer composite material: a polyethylene film, a modified asphalt coating, and fiberglass cloth. These layers are bonded together with hot melt adhesive to ensure waterproofing and tensile strength. Anchor bolts are 50mm in diameter, 6m long, and spaced 2m x 2m apart. The reinforcing mesh is 15cm x 15cm and 8mm in diameter. During construction, the geomembrane is first laid flat, then anchor bolts are driven through and connected to the geomembrane. Next, the reinforcing mesh is welded and fixed to the dam body. Finally, a sensor module is installed and connected to the central control system for remote monitoring. The entire seepage prevention system is composed of these components working together to provide real-time feedback on the geomembrane's condition, allowing for early detection and handling of potential problems, thus improving the dam's safe operation. Attached Figure Description

[0031] Figure 1 This is a perspective view of an earth-rock dam seepage prevention and water-stopping structure proposed in this utility model;

[0032] Figure 2 This is a front view of an earth-rock dam seepage prevention and water-stopping structure proposed in this utility model;

[0033] Figure 3 This is a cross-sectional view of an earth-rock dam seepage prevention and water-stopping structure proposed in this utility model;

[0034] Figure 4 This is a side view of an earth-rock dam seepage prevention and water-stopping structure proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the protective mechanism of an earth-rock dam seepage prevention and water-stopping structure proposed in this utility model.

[0036] Legend:

[0037] 1. Dam body; 2. Protective mechanism; 201. Fixing plate; 202. Bolt; 203. Asphalt coating; 204. Fiberglass cloth; 205. Polyethylene film; 206. Monitoring device; 3. Fixing base plate; 4. Protective shell; 5. Warning sign; 6. Screw; 7. Hollow box; 8. Anti-slip sleeve; 9. Handle; 10. Drawer box; 11. Fixing long plate; 12. Hose; 13. Water pump; 14. Filter screen; 15. Impeller; 16. Cleaning brush; 17. Scraper; 18. Square short plate; 19. Fixing short column. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of an earth-rock dam seepage prevention and water-stopping structure, including a dam body 1. Fixed long plates 11 are fixedly connected to both the left and right sides of the outer wall of the dam body 1. A water pump 13 is fixedly connected to the top of the fixed long plates 11. A hose 12 is connected to the suction end of the water pump 13. A square short plate 18 is fixedly connected to the inner wall of the hose 12. A fixed short column 19 is rotatably connected to the left side of the outer wall of the square short plate 18. An impeller 15 is fixedly connected to the other end of the fixed short column 19. The fixed short column 19 serves to fix the impeller 15 for rotation. A cleaning brush 16 is fixedly connected to the left side of the middle part of the outer wall of the impeller 15. Multiple scrapers 17 are fixedly connected at equal intervals on the left side of the outer wall of the cleaning brush 16. A protective mechanism 2 is installed on the top of the dam body 1. The protective mechanism 2 is used to protect the dam body 1 and reduce the risk of leakage of the dam body 1. A screw 6 is threadedly connected on the left side of the outer wall of the dam body 1. A warning sign 5 is threadedly connected on the outer wall of the screw 6. The warning sign 5 can serve as a warning and reminder to the surrounding personnel. A hollow box 7 is fixedly connected to the top right side of the left fixed long plate 11. A drawer 10 is slidably connected inside the hollow box 7. The drawer 10 slidably connected inside the hollow box 7 can facilitate the storage of tools for daily use and maintenance.

[0040] Specifically, after the water pump 13 is started, it generates suction through its suction end. Since the suction end is connected to the hose 12 with a filter screen 14, when the water flows through the filter screen 14, the filter screen 14 plays a preliminary filtering role, intercepting larger particles of mud, sand, and debris in the water and preventing them from entering the water pump 13 and causing blockage. As the water pump 13 continues to work, the impeller 15 rotates at high speed, which drives the cleaning brush 16 and scraper 17 to rotate together. When the scraper 17 rotates, it cleans the impurities attached to the hose 12, preventing the hose 12 from being blocked and ensuring drainage. The process is carried out continuously and efficiently, and water that may accumulate around the dam body 1 is drained in a timely manner, reducing the risk of leakage caused by excessive water accumulation in the dam body 1. A screw 6 is threadedly connected to the left side of the outer wall of the dam body 1, and a warning sign 5 is threadedly connected to the outer wall of the screw 6. The warning sign 5 can serve as a warning and reminder to the surrounding personnel. A hollow box 7 is fixedly connected to the top right side of the left fixed long plate 11. A drawer 10 is slidably connected inside the hollow box 7. The drawer 10 slidably connected inside the hollow box 7 can facilitate the storage of tools for daily use and maintenance.

[0041] Reference Figure 1 , Figure 4 and Figure 5 The protective mechanism 2 includes a fixing plate 201, which is installed on the top of the dam body 1. A fiberglass cloth 204 is fixedly connected to the bottom of the fixing plate 201. An asphalt coating 203 is provided on the top of the fiberglass cloth 204. A polyethylene film 205 is provided on the top of the asphalt coating 203. A bolt 202 is threadedly connected to the top of the fixing plate 201. A monitoring device 206 is installed on the left side of the outer wall of the dam body 1. A handle 9 is fixedly connected to the front side of the outer wall of the drawer 10. The handle 9 fixedly connected to the front side of the outer wall of the drawer 10 can facilitate the opening and closing of the drawer 10 for use by the staff. An anti-slip sleeve 8 is fixedly connected to the outer wall of the handle 9. The anti-slip sleeve 8 fixedly connected to the outer wall of the handle 9 can enhance the hand comfort of the staff when holding the handle 9 and prevent the hand from slipping.

[0042] Specifically, the monitoring device 206 monitors the changes in the condition of the dam body 1 in real time, promptly identifying and addressing potential hazards. The flexible geomembrane employs a multi-layer composite material structure: a polyethylene film 205 as the outer layer, a modified asphalt coating 203 as the inner layer, and a fiberglass cloth 204 as the bottom layer. These three layers are bonded together with hot melt adhesive to ensure excellent waterproof performance and tensile strength. The anchor bolts are 50mm in diameter, 6m long, and spaced 2m x 2m apart. The steel mesh has a grid size of 15cm x 15cm and a steel bar diameter of 8mm. During construction, the geomembrane is first laid on the dam surface, ensuring it is flat and wrinkle-free. Then, the anchor bolts are driven in sequentially. At the predetermined location of the dam body 1, the impermeable membrane is passed through and firmly connected to it. Then, the steel mesh is welded into shape according to the design drawings and fixed to the surface of the dam body 1 with bolts 202. Finally, the sensor module of the monitoring system is installed and connected to the central control system to realize the remote monitoring function. A handle 9 is fixedly connected to the front side of the outer wall of the drawer 10. The handle 9 fixedly connected to the front side of the outer wall of the drawer 10 can facilitate the staff to open and close the drawer 10. An anti-slip sleeve 8 is fixedly connected to the outer wall of the handle 9. The anti-slip sleeve 8 fixedly connected to the outer wall of the handle 9 can enhance the hand comfort of the staff when holding the handle 9 and prevent the hand from slipping.

[0043] Reference Figure 1 and Figure 2 Each of the adjacent ends of the hose 12 is equipped with a filter screen 14. A fixed base plate 3 is fixedly connected to the left side of the outer wall of the dam body 1. The filter screen 14 can filter out impurities in the water. A protective shell 4 is slidably connected to the top of the fixed base plate 3. The protective shell 4 can protect the monitoring device 206.

[0044] Specifically, a filter screen 14 is installed at each adjacent end of the hose 12, and a fixed base plate 3 is fixedly connected to the left side of the outer wall of the dam body 1. The filter screen 14 can filter out impurities in the water. A protective shell 4 is slidably connected to the top of the fixed base plate 3. The protective shell 4 can protect the monitoring device 206.

[0045] Working principle: After the water pump 13 is started, it generates suction through its suction end. Since the suction end is connected to the hose 12 with a filter screen 14, when the water flows through the filter screen 14, the filter screen 14 plays a preliminary filtering role, intercepting larger particles of mud, sand and debris in the water, preventing them from entering the water pump 13 and causing blockage. As the water pump 13 continues to work, the impeller 15 rotates at high speed, which drives the cleaning brush 16 and scraper 17 to rotate together. When the scraper 17 rotates, it cleans the impurities attached to the hose 12, preventing the hose 12 from being blocked, ensuring that the drainage process is continuous and efficient, and timely draining the water that may accumulate around the dam body 1, reducing the risk of leakage of the dam body 1 due to excessive water accumulation. This avoids the problem that when the water level in the dam is high, the existing technology cannot drain the water in time, which will cause the soil of the dam body 1 to be in a saturated state, increase the pore water pressure, reduce the effective stress, and cause the shear strength of the soil to be greatly reduced, thus leading to damage to the dam body 1.

[0046] The monitoring device 206 monitors the changes in the condition of the dam body 1 in real time, promptly identifying and addressing potential hazards. The flexible geomembrane employs a multi-layer composite material structure: a polyethylene film 205 as the outer layer, a modified asphalt coating 203 as the inner layer, and a fiberglass cloth 204 as the bottom layer. These three layers are bonded together with hot melt adhesive, ensuring excellent waterproof performance and tensile strength. The anchor bolts are 50mm in diameter, 6m long, and spaced 2m x 2m apart. The steel mesh has a grid size of 15cm x 15cm and a steel bar diameter of 8mm. During construction, the geomembrane is first... The membrane is laid on the dam surface, ensuring it is flat and wrinkle-free. Then, anchor bolts are driven into the predetermined positions of the dam body 1, passing through the geomembrane and firmly connected to it. Next, the steel mesh is welded into shape according to the design drawings and fixed to the surface of the dam body 1 with bolts 202. Finally, the sensor module of the monitoring system is installed and connected to the central control system to realize the remote monitoring function. This enables the monitoring device 206 to provide real-time feedback on the changes in the geomembrane's status, allowing for the early detection of potential problems and the implementation of corresponding remedial measures, thereby improving the safe operation level of the dam body 1.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An earth-rock dam seepage-proofing and water-stopping structure comprising a dam body (1), characterized in that: The outer wall of the dam body (1) is fixedly connected with a fixed long plate (11) on the left and right sides, the top of the fixed long plate (11) is fixedly connected with a water pump (13), the suction end of the water pump (13) is communicated with a hose (12), the inner wall of the hose (12) is fixedly connected with a square short plate (18), the outer wall left side of the square short plate (18) is rotatably connected with a fixed short column (19), the other end of the fixed short column (19) is fixedly connected with an impeller (15), the outer wall middle left side of the impeller (15) is fixedly connected with a cleaning brush (16), the outer wall left side of the cleaning brush (16) is fixedly connected with a plurality of scrapers (17) at equal intervals, the top of the dam body (1) is provided with a protection mechanism (2), and the protection mechanism (2) is used for protecting the dam body (1) to reduce the risk of leakage of the dam body (1).

2. The earth-rock dam seepage-proof and water-stop structure according to claim 1, characterized in that: The protection mechanism (2) comprises a fixed plate (201), the fixed plate (201) is installed on the top of the dam body (1), the bottom of the fixed plate (201) is fixedly connected with a glass fiber cloth (204), the top of the glass fiber cloth (204) is provided with an asphalt coating (203), the top of the asphalt coating (203) is provided with a polyethylene film (205), the top of the fixed plate (201) is threadedly connected with a bolt (202), and the outer wall left side of the dam body (1) is provided with a monitoring device (206).

3. The earth and rock dam seepage prevention and water stopping structure according to claim 1, characterized in that: The outer wall of the dam body (1) is threadedly connected with a screw (6), and the outer wall of the screw (6) is threadedly connected with a warning sign (5).

4. The earth and rock dam seepage prevention and water stopping structure according to claim 1, characterized in that: The top right side of the fixed long plate (11) on the left side is fixedly connected with a hollow box (7), and the hollow box (7) is slidably connected with a drawer (10).

5. The earth and rock dam seepage prevention and water stopping structure according to claim 4, characterized in that: The outer wall front side of the drawer (10) is fixedly connected with a handle (9).

6. The earth and rock dam seepage prevention and water stopping structure according to claim 5, characterized in that: The outer wall of the handle (9) is fixedly connected with an anti-skid sleeve (8).

7. The earth and rock dam seepage prevention and water stopping structure according to claim 1, characterized in that: The adjacent ends of the hose (12) are provided with filter screens (14).

8. The earth and rock dam seepage prevention and water stopping structure according to claim 1, characterized in that: The outer wall left side of the dam body (1) is fixedly connected with a fixed bottom plate (3), and the top of the fixed bottom plate (3) is slidably connected with a protection shell (4).

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