Composite type anti-seepage and water-stopping structure for water conservancy and hydropower engineering

Abstract

The application discloses a composite seepage-proof and water-stopping structure for water conservancy and hydropower engineering, and relates to the technical field of water conservancy and hydropower engineering, comprising a dam, wherein a seepage-proof and water-stopping composite layer is arranged on the dam; and a cleaning assembly, wherein the cleaning assembly comprises a cleaning attachment strip, a protection mounting frame fixed to the top of the dam, and a back-and-forth piece. The seepage-proof and water-stopping composite layer is automatically cleaned on the water surface through the cleaning assembly. The whole process does not need manual underwater operation, is high in efficiency, and is not limited by water level changes. The cleaning effect can be remarkably improved through repeated swinging of the cleaning attachment strip during cleaning. The high-pressure airflow sprayed by the protection attachment can blow away the loosened impurities, avoids residue of the impurities, effectively delays the aging and deterioration process of the seepage-proof material, prolongs the service life of the seepage-proof and water-stopping composite layer, and simultaneously forms an unstable air-water mixed layer on the inclined surface of the dam through the airflow, increases the difficulty of biological spore or larva attachment, inhibits the growth of algae and shellfish from the source, and enhances the function of preventing biological attachment.

Description

Technical Field

[0001] This invention relates to the field of water conservancy and hydropower engineering technology, specifically to a composite seepage prevention and water-stopping structure for water conservancy and hydropower engineering. Background Technology

[0002] In water conservancy and hydropower projects, the water-facing side of the dam is usually equipped with a composite seepage prevention and water-stopping structure to prevent reservoir water from seeping into the dam body. However, the seepage prevention and water-stopping structure on the water-facing side has long faced multiple common problems. On the one hand, the water-facing side of the dam is constantly covered by mud, sand, floating debris, moss and solidified dirt carried by the water flow, which damages the sealing performance of the water-stopping structure, forms a local corrosion layer, accelerates the aging and failure of the seepage prevention material, and significantly shortens the service life of the dam seepage prevention system. Currently, the cleaning and maintenance of the water-facing side of the seepage prevention structure mainly relies on manual cleaning. During the non-flood season when the water level is low, staff members manually inspect and clean the seepage prevention layer on the upstream side. However, this method is inefficient and limited by water level changes. Furthermore, the coating protection on the water-facing side of the seepage prevention structure also has limited durability due to biological adhesion. Summary of the Invention

[0003] The purpose of this invention is to provide a composite seepage-proof and water-stopping structure for water conservancy and hydropower projects. This solves the problems that the cleaning and maintenance of the water-facing side of traditional seepage-proof structures mainly rely on manual cleaning, which is inefficient and limited by water level changes. In addition, the coating protection on the water-facing side of the seepage-proof structure also has limited durability due to biological adhesion.

[0004] This invention solves the above-mentioned technical problems through the following technical solution: A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects, comprising: The dam is equipped with a seepage-proof and water-stopping composite layer. The cleaning assembly includes a cleaning strip, a protective mounting frame fixed to the top of the embankment, a swinging component, an anti-attachment component, and a translation component. The cleaning strip includes a mounting strip with an adaptive scraping strip fixed on it. The translation component is located at the top of the embankment and is used to drive the cleaning strip to move left and right along the embankment. The swinging component causes the cleaning strip to swing back and forth when moving left and right.

[0005] Preferably, the adaptive scraper includes a hollow strip plate fixed on the mounting strip, a C-shaped connecting strip sliding on the inner side of the hollow strip plate, a gravity scraper plate fixed between the two ends of the C-shaped connecting strip, and a resistance-reducing strip hole opened on the hollow strip plate.

[0006] Preferably, the swinging component includes an extension head fixed to one end of the mounting strip, a fixing column fixed to the inner side wall of the protective mounting frame, and a disc. The disc has an inner groove, and the mounting column is rotatably mounted on the inner side of the inner groove. One end of the mounting column extends to the outside of the disc and is fixed to one end of the mounting strip.

[0007] Preferably, the swing element further includes a damping block fixed to the mounting column, and a return spring is fixed on the damping block, with one end of the return spring fixed to the inner sidewall of the inner groove.

[0008] Preferably, the protective accessory includes a slide rail support bar fixed to the inner wall of the protective mounting frame and a one-way valve air outlet pipe fixed to both sides of the gravity scraper bar. A sliding seat is slidably mounted on the slide rail support bar, and an air pump is fixed on the sliding seat.

[0009] Preferably, the gravity scraper has an air groove, the protective mounting frame has a horizontal groove, the air outlet of the air pump is connected to one end of the air groove through a hose, and the air inlet of the air pump is fixed with an air inlet pipe that extends to the inside of the horizontal groove.

[0010] Preferably, the translation component includes a servo motor fixed to the protective mounting frame, a threaded rod rotating inside the protective mounting frame, and a fixed rod fixed to the inside of the protective mounting frame. A movable seat is threadedly connected to the threaded rod, and the movable seat is slidably sleeved on the fixed rod.

[0011] Preferably, the movable seat and the disc are fixedly connected, and the bottom of the movable seat is fixedly connected to the sliding seat via a vertical rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The automated routine cleaning of the water-facing surface of the seepage-proof and water-stopping composite layer is achieved through the set cleaning components. The entire process does not require manual underwater operation, is highly efficient, and is not limited by water level changes. The repeated swinging of the cleaning strips during cleaning can significantly improve the cleaning effect. The high-pressure airflow sprayed by the cleaning components can blow away the loosened impurities, avoiding impurity residue, effectively delaying the aging and deterioration process of the seepage-proof material, and extending the service life of the seepage-proof and water-stopping composite layer. At the same time, the airflow forms an unstable air-water mixture layer on the inclined surface of the dam, increasing the difficulty for biological spores or larvae to attach, inhibiting the growth of algae and shellfish from the source, and enhancing the function of preventing biological attachment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention when the drill bit is not started; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a split sectional view of the cleaning component in this invention; Figure 4This is a split sectional view of the mounting strip and the disc in this invention; Figure 5 for Figure 4 Enlarged diagram of section A in the middle; Figure 6 This is a schematic diagram of the cleaning attachment strip and the return swing component in this invention; Figure 7 This is a split cross-sectional view of the adaptive scraper strip and anti-attachment in this invention; Figure 8 for Figure 7 Enlarged schematic diagram of section B.

[0014] 1. Embankment; 2. Seepage-proof and waterproof composite layer; 3. Cleaning components; 31. Cleaning strip; 3101. Mounting strip; 3102. Adaptive scraper strip; 31021. Hollow strip plate; 31022. C-type connecting strip; 31023. Gravity scraper strip; 31024. Resistance reduction strip hole; 32. Protective mounting bracket; 33. Extension head; 34. Disc; 35. Inner groove; 36. Mounting column; 37. Fixing column; 38. Damping block; 39. Return spring; 310. Slide rail support bar; 311. One-way valve outlet pipe; 312. Sliding seat; 313. Air pump; 314. Servo motor; 315. Threaded rod; 316. Fixing rod; 317. Moving seat; 318. Air groove; 319. Horizontal groove. Detailed Implementation

[0015] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0016] This invention provides a technical solution: a composite seepage-proof and water-stopping structure for water conservancy and hydropower projects, such as... Figures 1-8 As shown, the structure includes a dam 1 and a cleaning and annealing component 3. A seepage-proof and water-stopping composite layer 2 is provided on the dam 1. The seepage-proof and water-stopping composite layer 2 includes, from the outer side (water-facing side) to the inner side (water-repellent side, i.e., the outer wall of the dam 1), the following layers in sequence: a sealing layer (which seals the surface to prevent water from seeping into the internal structure), a first seepage-proof layer (the material is usually asphalt concrete, which has excellent seepage-proof performance), a second seepage-proof layer (used to further block water that may seep down), and a leveling and bonding layer (which levels the base surface and provides a solid base layer for the two seepage-proof layers above). The layer structure of the seepage-proof and water-stopping composite layer 2 used on the dam 1 is well known to those skilled in the art. The material of each layer is not fixed, because there are many materials available for corresponding functions. These are all conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0017] Photovoltaic panels can be installed on the top of the dam 1 to convert solar energy into electrical energy to power the air pump 313 and servo motor 314 in the cleaning assembly 3. The cleaning assembly 3 includes a cleaning strip 31, a protective mounting frame 32 fixed to the top of the dam 1, a swinging component, an anti-attachment component, and a translation component. The translation component is located on the top of the dam 1 and drives the cleaning strip 31 to move left and right along the inclined surface of the dam 1. The swinging component causes the cleaning strip 31 to swing back and forth as it moves left and right along the inclined surface of the dam 1. The cleaning strip 31 includes a mounting strip 3101, the inclination of which is parallel to the inclined surface of the dam 1, and (e.g.) Figure 2 (As shown) The length of the mounting strip 3101 is slightly greater than the length of the inclined surface of the dam 1. An adaptive scraper strip 3102 is fixed to the mounting strip 3101. The adaptive scraper strip 3102 includes a hollow strip plate 31021 fixed to the mounting strip 3101, such as... Figure 6 As shown, the hollow strip 31021 and the mounting strip 3101 are at a certain angle. A C-shaped connecting strip 31022 slides on the inner side of the hollow strip 31021. A gravity scraper strip 31023 is fixed between the two ends of the C-shaped connecting strip 31022. The gravity scraper strip 31023 must have sufficient gravity to keep itself hanging and adhering to the inclined surface of the dam 1 when it is in the water source, and will not float in the water. Figure 6 As shown, both sides of the hollow strip plate 31021 are provided with resistance-reducing strip holes 31024 that are distributed at equal intervals. Similarly, if the mounting strip 3101 is thick enough, the same resistance-reducing strip holes 31024 can also be provided on the mounting strip 3101. The resistance-reducing strip holes 31024 can help reduce the water flow resistance experienced by the hollow strip plate 31021 and the mounting strip 3101 when they swing.

[0018] The return mechanism includes an extension head 33 fixed to one end of the mounting strip 3101, a fixing post 37 fixed to the inner wall of the protective mounting frame 32, and a disc 34. The fixing posts 37 are installed on the inner wall of the protective mounting frame 32 at equal intervals, and the fixing posts 37 and the mounting strip 3101 are kept in a relatively horizontal position. The disc 34 has an inner groove 35, and a mounting post 36 is rotatably mounted inside the inner groove 35. One end of the mounting post 36 extends to the outside of the disc 34 and is fixed to one end of the mounting strip 3101. A damping block 38 is fixed on the mounting post 36. The damping block 38 slides inside the inner groove 35 and has a certain damping when sliding. A return spring 39 is fixed on the damping block 38. One end is fixed to the inner wall of the inner groove 35. When the return spring 39 is at its original length, the extension head 33 on the mounting strip 3101 is in a state perpendicular to the inclined surface of the dam 1. When the extension head 33 moves with the mounting strip 3101 and the moving seat 317 and passes a fixed column 37, it will be blocked by the fixed column 37, causing the extension head 33 to be obstructed. This will cause the mounting strip 3101 to start to deflect around the mounting column 36 as the center point and squeeze the return spring 39. When the extension head 33 passes the fixed column 37, it will deflect back and reset under the elastic force of the return spring 39, thereby driving the extension head 33 and the mounting strip 3101 to reset, so that the gravity scraper 31023 completes one swing.

[0019] The protective accessories include a slide rail support bar 310 fixed to the inner wall of the protective mounting frame 32 and a one-way valve vent pipe 311 fixed to both sides of the gravity scraper bar 31023. The opening of the one-way valve vent pipe 311 faces the inclined surface of the dam 1 and needs to form a certain angle with the inclined surface of the dam 1 so that the airflow can scour the target surface (the inclined surface of the dam 1) at an angle, prolonging the gas action time and expanding the range of motion, thereby improving the effect. As the name suggests, the one-way valve vent pipe 311 is a one-way valve (also called a stop valve) installed on an air outlet pipe. The return valve only allows gas to be ejected outward. As soon as the air pressure drops, the valve disc of the one-way valve will automatically close under the action of water pressure, cutting off the water path and physically isolating the backflow of water. A sliding seat 312 slides on the slide rail support bar 310, and an air pump 313 is fixed on the sliding seat 312. As is well known to those skilled in the art, the working principle and wiring method of the air pump 313 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0020] The gravity scraper 31023 has an air groove 318, and the protective mounting bracket 32 ​​has a transverse groove 319. The air outlet of the air pump 313 is connected to one end of the air groove 318 via a hose. The air inlet of the air pump 313 is fixed with an air inlet pipe that extends to the inside of the transverse groove 319. The translation component includes a servo motor 314 fixed to the protective mounting bracket 32, a threaded rod 315 rotating inside the protective mounting bracket 32, and a fixing rod 316 fixed inside the protective mounting bracket 32. One end of the output shaft of the servo motor 314 and the threaded rod... One end of 315 is fixedly connected, and a movable seat 317 is threadedly connected to the threaded rod 315. The movable seat 317 is slidably sleeved on the fixed rod 316. The movable seat 317 and the disc 34 are fixedly connected. The bottom of the movable seat 317 is fixedly connected to the sliding seat 312 through a vertical rod. As is well known to those skilled in the art, the working principle and wiring method of the servo motor 314 are common and are all conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0021] In use: Periodically start the cleaning component 3. The servo motor 314 drives the threaded rod 315 to rotate. The rotation of the threaded rod 315 causes the movable seat 317 to move along the threaded rod 315 under the anti-deflection action of the fixed rod 316. After the movable seat 317 moves to one end of the threaded rod 315, the servo motor 314 drives the threaded rod 315 to reverse, so that the movable seat 317 moves back to the other end of the threaded rod 315. During the movement of the movable seat 317, it will drive the disc 34 and the sliding seat 312 to move horizontally. The disc 34 drives the mounting strip 3101 and the adaptive scraper strip 3102 to move horizontally along the inclined surface of the dam 1 through the mounting column 36. The sliding seat 312 drives the air pump 313 to move horizontally as well. The air pump 313 is connected to the air tank 318 through the hose.

[0022] When the mounting strip 3101 moves the extension head 33 to the position of the fixed post 37, the disc 34 will continue to move with the moving seat 317. However, the extension head 33 will be unable to move further due to the obstruction of the fixed post 37, and the mounting strip 3101 will cause the mounting post 36 to deflect. The deflection of the mounting post 36 will cause the damping block 38 to rotate in the inner groove 35 and squeeze the return spring 39. The deflection of the mounting strip 3101 will cause the hollow strip plate 31021, the C-shaped connecting strip 31022 and the gravity scraper strip 31023 to deflect. When the gravity scraper strip 31023 deflects, it will always be in contact with the inclined surface of the dam 1 due to its own weight, and it will push the C-shaped connecting strip 31022 to the middle. The empty strip 31021 slides so that the gravity scraper 31023 can automatically adjust its relative position with the hollow strip 31021 when it deflects. After the extension head 33 deflects to one end and passes the fixed column 37 that previously blocked it, the damping block 38 will rotate in the inner groove 35 under the elastic force of the return spring 39, thereby driving the mounting column 36 to rotate. The mounting column 36 then drives the mounting strip 3101, the adaptive scraper 3102 and the extension head 33 to rotate until the extension head 33 moves to the position of the next fixed column 37 and repeats the above motion trajectory, so as to realize the function of the gravity scraper 31023 automatically swinging and scraping material when it moves along the inclined surface of the dam 1. Simultaneously with the start of the servo motor 314, the air pump 313 starts to draw gas from the outside of the protective mounting bracket 32 ​​into the hose. Subsequently, the gas enters the one-way valve air outlet pipes 311 on both sides of the gravity scraper 31023 through the air groove 318 and is sprayed towards the inclined surface of the dam 1. The sprayed high-pressure airflow can blow away the loosened impurities, avoid impurity residue, effectively delay the aging and deterioration process of the seepage-proof and water-stopping composite layer 2, and extend the service life of the seepage-proof and water-stopping composite layer 2. At the same time, the airflow forms an unstable air-water mixture layer on the inclined surface of the dam 1, increasing the difficulty for biological spores or larvae to attach, inhibiting the growth of algae and shellfish from the source, and enhancing the function of preventing biological attachment. After the cleaning of the inclined surface of the dam 1 is completed, the servo motor 314 and the air pump 313 stop working, and the one-way valve air outlet pipe 311 will close the port to prevent water from entering.

[0023] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects, characterized in that, include: The dam (1) is provided with a seepage-proof and water-stopping composite layer (2). The cleaning component (3) includes a cleaning strip (31), a protective mounting frame (32) fixed to the top of the embankment (1), a swinging component, an anti-attachment component, and a translation component. The cleaning strip (31) includes a mounting strip (3101) with an adaptive scraping strip (3102) fixed on it. The translation component is located on the top of the embankment (1) and is used to drive the cleaning strip (31) to move left and right along the embankment (1). The swinging component makes the cleaning strip (31) swing back and forth when it moves left and right.

2. The composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that, The adaptive scraper strip (3102) includes a hollow strip plate (31021) fixed on the mounting strip (3101), a C-shaped connecting strip (31022) sliding on the inner side of the hollow strip plate (31021), a gravity scraper strip (31023) fixed between the two ends of the C-shaped connecting strip (31022), and a resistance-reducing strip hole (31024) is opened on the hollow strip plate (31021).

3. The composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that, The swinging component includes an extension head (33) fixed to one end of the mounting strip (3101), a fixing post (37) fixed to the inner wall of the protective mounting frame (32), and a disc (34). The disc (34) has an inner groove (35), and a mounting post (36) is rotatably mounted on the inner side of the inner groove (35). One end of the mounting post (36) extends to the outside of the disc (34) and is fixed to one end of the mounting strip (3101).

4. A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 3, characterized in that, The swing member also includes a damping block (38) fixed on the mounting column (36), and a return spring (39) is fixed on the damping block (38). One end of the return spring (39) is fixed on the inner side wall of the inner groove (35).

5. A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 2, characterized in that, The protective accessories include a slide rail support bar (310) fixed to the inner wall of the protective mounting frame (32) and a one-way valve air outlet pipe (311) fixed to both sides of the gravity scraper bar (31023). A sliding seat (312) slides on the slide rail support bar (310), and an air pump (313) is fixed on the sliding seat (312).

6. A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 5, characterized in that, The gravity scraper (31023) has an air groove (318), the protective mounting bracket (32) has a horizontal groove (319), the air outlet of the air pump (313) is connected to one end of the air groove (318) through a hose, and the air inlet of the air pump (313) is fixed with an air inlet pipe, which extends to the inside of the horizontal groove (319).

7. A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 6, characterized in that, The translation component includes a servo motor (314) fixed on the protective mounting bracket (32), a threaded rod (315) rotating inside the protective mounting bracket (32), and a fixed rod (316) fixed inside the protective mounting bracket (32). A movable seat (317) is threadedly connected to the threaded rod (315), and the movable seat (317) is slidably sleeved on the fixed rod (316).

8. A composite seepage-proof and water-stopping structure for water conservancy and hydropower projects according to claim 7, characterized in that, The movable seat (317) and the disc (34) are fixedly connected, and the bottom of the movable seat (317) is fixedly connected to the sliding seat (312) by a vertical rod.

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