Water conservancy dam curtain grouting anti-seepage reinforcing structure

Abstract

The invention discloses a water conservancy dam curtain grouting anti-seepage reinforcing structure, and relates to the technical field of water conservancy dam construction, the water conservancy dam curtain grouting anti-seepage reinforcing structure comprises a dam body and a dam foundation, the water retaining side of the dam body is provided with a first anti-seepage panel, a second anti-seepage panel is arranged between the water retaining side of the dam body and the first anti-seepage panel, the second anti-seepage panel is internally provided with a plurality of positioning holes, and the first anti-seepage panel and the second anti-seepage panel are arranged in the dam foundation. And pouring piles are arranged in the positioning holes of the second anti-seepage panel, penetrate through the interiors of the positioning holes and are downwards obliquely inserted into the dam body, grouting is conducted on the interiors of the pouring piles, and after grouting is solidified, the second anti-seepage panel is fixed to the water retaining side of the dam body. The anti-seepage structure has the advantages that the overall structure is more stable, and the anti-seepage performance is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy dam construction, in particular to a water conservancy dam curtain grouting anti-seepage reinforcement structure. Background Art

[0002] A concrete dam refers to a gravity dam in which the entire dam body is filled with concrete except for several small cavities. The upstream surface of the dam body is a vertical surface, an inclined surface or a folded surface. Foundation grouting galleries are set up in high dams and medium dams. The foundation grouting galleries are used for foundation grouting, drainage, safety testing, inspection and maintenance, operation, dam transportation and other purposes.

[0003] Both the upstream surface and the foundation of the dam body need to be treated for anti-seepage. The concrete used in the construction of the anti-seepage layer on the upstream surface of the dam body is different from the concrete composition and maintenance method used for pouring the dam body, which makes the anti-seepage layer very easy to fall off from the outer surface of the dam body, thereby resulting in a decrease in the anti-seepage effect. The dam foundation mainly adopts the method of anti-seepage curtain grouting. Usually, only one anti-seepage curtain is set. When the anti-seepage curtain is eroded by water for a long time, cracks are prone to occur, resulting in failure of the anti-seepage curtain and water seepage.

[0004] For related technologies, reference may be made to the Chinese patent with authorization announcement number CN117947746A, which discloses a closed anti-seepage reinforcement structure for a concrete dam and a construction method thereof, including a dam body and a dam foundation, a first anti-seepage panel being arranged on the water retaining side of the dam body, and a corridor being arranged at the bottom of the dam body; the dam foundation is divided into a permeable layer, a weakly permeable layer and an impermeable layer from top to bottom, and an anti-seepage curtain being arranged inside the dam foundation; a locking mechanism being arranged inside the dam body, and a connecting mechanism being arranged inside the first anti-seepage panel, the locking mechanism and the connecting mechanism cooperate to tighten and fix the first anti-seepage panel and the dam body to each other, thereby improving the stability of the first anti-seepage panel; the permeable geotextile of the anti-seepage curtain and the anti-seepage wall panel constitute two-level anti-seepage, thereby effectively improving the anti-seepage effect.

[0005] However, the first anti-seepage panel and the dam body are tightened and fixed to each other by using a locking mechanism and a connecting mechanism, and there is a gap between the locking mechanism, the connecting mechanism and the dam body, resulting in the overall structure being not compact enough and it is difficult to improve the anti-seepage performance. Summary of the invention

[0006] The present application provides a water conservancy dam curtain grouting anti-seepage reinforcement structure, which has the function of making the overall structure more stable and significantly improving the anti-seepage performance.

[0007] The present application provides a water conservancy dam curtain grouting anti-seepage reinforcement structure, which adopts the following technical solution: A water conservancy dam curtain grouting anti-seepage reinforcement structure comprises a dam body and a dam foundation, wherein a first anti-seepage panel is arranged on the water retaining side of the dam body, a second anti-seepage panel is arranged between the water retaining side of the dam body and the first anti-seepage panel, a plurality of positioning holes are arranged inside the second anti-seepage panel, casting piles are arranged in the positioning holes of the second anti-seepage panel, the casting piles penetrate the inside of the positioning holes, are inserted into the dam body at an angle downward, and grouting is performed toward the inside of the casting piles, and after the grouting is cured, the second anti-seepage panel is fixed on the water retaining side of the dam body.

[0008] By adopting the above technical solution, the design of the second anti-seepage panel includes a plurality of positioning holes, the function of which is to guide and position the casting piles, thereby ensuring the precise positioning of the panel during the construction process; the casting piles are inserted into the interior of the dam body in a downwardly inclined manner, and this design enhances the bearing capacity of the pile body, increases the friction between the pile body and the dam body, and improves its fixed stability; the slurry injected into the casting pile forms a solid connection after solidification, thereby further strengthening the connection between the second anti-seepage panel and the dam body, making the overall structure more stable and significantly improving the anti-seepage performance; through the layout of the second anti-seepage panel and the stable setting of the casting piles, it is possible to effectively prevent water penetration and enhance the overall anti-seepage capacity of the dam body.

[0009] Preferably, the cast pile comprises a pile body, a grouting cavity is provided inside the pile body, the grouting cavity is connected to a grouting hole provided on the pile body, and a grouting port connected to the grouting cavity is provided on the pile body.

[0010] By adopting the above technical scheme, by injecting waterproof cement mortar into the grouting port, the slurry can smoothly enter the grouting cavity and flow out through the overflow hole, thereby providing a necessary channel for the slurry to flow from the grouting cavity to the inside of the dam body; during the grouting operation, the waterproof cement mortar not only fills the grouting cavity, but also seeps out through the overflow hole, and then flows into the dam structure around the pile body; when the waterproof cement mortar enters the dam body and completes solidification, it will form a solid waterproof barrier, which will significantly enhance the anti-seepage ability of the dam body.

[0011] Preferably, a plurality of inverted spikes are arranged on the outer surface of the pile body, and the plurality of inverted spikes are arranged obliquely toward the insertion direction of the pile body.

[0012] By adopting the above technical solution, the inclination design of the inverted pile thorns towards the direction of pile insertion significantly improves the pull-out resistance of the pile body, thereby effectively preventing the pile body from being pulled out or displaced under external forces such as soil settlement or water flow. During the grouting process, the inverted pile thorns play a role in preventing the loss of slurry, and through the physical blocking effect, the slurry is more efficiently transferred and filled inside the surrounding dam body; at the same time, the design of the inverted pile thorns increases the friction and locking effect between the pile body and the surrounding medium, further enhancing the overall stability of the pile body, thereby reducing the risk of tilting or displacement.

[0013] Preferably, waterproof asphalt is poured between the first anti-seepage panel and the second anti-seepage panel and then solidified to form a waterproof asphalt layer.

[0014] By adopting the above technical solution, the poured waterproof asphalt forms a strong bond between the first and second anti-seepage panels. This connection significantly enhances the stability of the overall structure and effectively prevents separation caused by changes in water pressure. Through this bond, the continuity of the structure is maintained, ensuring its reliability and durability under different working conditions.

[0015] Preferably, the surface of the waterproof asphalt layer is provided with a plurality of first leakage locating nets for detecting nearby water seepage points and reserved tubes for pouring waterproof filler without damaging the first anti-seepage panel, and the first leakage locating nets and the reserved tubes are staggered.

[0016] By adopting the above technical solution, the main function of the first leakage locating net is to monitor the existence and specific location of the seepage point, while the reserved pipe is used to inject the waterproof filler after the leakage is detected; this division of labor design improves the maintenance efficiency and orderliness of the waterproof system; in order to avoid the impact of the filling operation on the monitoring facilities, the first leakage locating net and the reserved pipe are staggered so that the locating net will not be interfered with during the injection process, thereby ensuring the effectiveness of the monitoring system.

[0017] Preferably, the first leakage locating net comprises a plurality of diverging tubes, the inner ends of the diverging tubes converge at one point, adjacent diverging tubes are connected by arc tubes, and a spider web structure is formed between the diverging tubes and the arc tubes.

[0018] By adopting the above technical solution, the spider-web structure composed of the divergent pipes and the arc pipes has a wide coverage capability, which can ensure rapid detection no matter where the leakage occurs; this layout optimizes the monitoring range and improves the response speed of the leakage point, thereby effectively enhancing the reliability and safety of the overall water treatment system.

[0019] Preferably, a junction is formed between the diverging tube and the arc tube, a raised tube is fixedly mounted on the junction, a water leakage sensor for detecting water seepage is provided on the raised tube, and a power line on the sensor runs through the interior of the raised tube.

[0020] By adopting the above technical solution, when water contacts the water leakage sensor, the electrical characteristics will change, thereby triggering an alarm or recording data; the power cord runs through the inside of the raised tube to provide power for the water leakage sensor; the setting of the water leakage sensor can promptly reflect the water seepage situation, quickly conduct troubleshooting and repairs, and reduce potential losses and impacts.

[0021] Preferably, a corridor is provided at the bottom of the dam body, and an anti-seepage curtain is provided in the dam foundation.

[0022] By adopting the above technical solution, the anti-seepage curtain is set inside the dam foundation, which can effectively prevent the leakage of groundwater and protect the dam body from soil loss and erosion; combined with the design of the corridor, it can reduce the direct impact of water level changes on the dam foundation, thereby improving the overall stability.

[0023] Preferably, a geotextile is provided in the dam foundation, the geotextile is located on one side of the anti-seepage curtain, and a second leakage locating net is provided between the geotextile and the anti-seepage curtain.

[0024] By adopting the above technical solution, the second leakage locating net is set up to monitor the water flow inside the dam body or the anti-seepage structure; when water flows into the space between the geotextile and the second leakage locating net through the anti-seepage curtain, the leakage phenomenon will cause the change of the water flow in the second leakage locating net; the second leakage locating net can not only effectively capture and guide the water leaking from the anti-seepage curtain, but also help to timely identify potential problems of the dam body; whether it is the failure of the geotextile or the leakage of the anti-seepage curtain, the locating net can provide early warning, thereby enhancing the reliability and response capability of the overall monitoring system.

[0025] Preferably, a bend pipe is provided between the second leakage locating net and the anti-seepage curtain, the bend pipe has a serpentine structure, and the top of the bend pipe is higher than the upper surface of the dam foundation; the bend pipe transversely runs through the area between two adjacent rows of second leakage locating nets.

[0026] By adopting the above technical solution, when the second leakage locating network detects that a specific area is leaking, waterproof mortar can be injected into the inside of the bent pipe; after the waterproof mortar is injected, an effective waterproof layer will be formed in the affected area, further improving the waterproof performance of the dam body or structure, and achieving a "self-healing" effect; by timely and accurate injection of waterproof mortar, the leakage point can be quickly sealed, thereby significantly reducing or eliminating the potential impact of leakage on dam body safety and water resource management; this method not only improves the efficiency of maintenance, but also enhances the reliability of the overall hydraulic structure.

[0027] In summary, this application has the following beneficial effects: 1. The design of the second anti-seepage panel includes multiple positioning holes, the function of which is to guide and position the casting piles, thereby ensuring the precise positioning of the panel during the construction process; the casting piles are inserted into the dam body in a downward tilted manner. This design enhances the bearing capacity of the pile body, increases the friction between the pile body and the dam body, and improves its fixed stability; the slurry injected into the casting pile forms a solid connection after solidification, thereby further strengthening the combination between the second anti-seepage panel and the dam body, making the overall structure more stable and significantly improving the anti-seepage performance; through the layout of the second anti-seepage panel and the stable setting of the casting piles, it can effectively prevent water penetration and enhance the overall anti-seepage ability of the dam body.

[0028] 2. When the second leakage locating network detects that a specific area is leaking, waterproof mortar can be injected into the inside of the bent pipe; after the waterproof mortar is injected, an effective waterproof layer will be formed in the affected area, further improving the waterproof performance of the dam or structure and achieving a "self-healing" effect; by timely and accurate injection of waterproof mortar, the leakage point can be quickly sealed, thereby significantly reducing or eliminating the potential impact of leakage on dam safety and water resource management; this method not only improves the efficiency of maintenance, but also enhances the reliability of the overall hydraulic structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the curtain grouting anti-seepage reinforcement structure of the water conservancy dam in this embodiment; Figure 2 Schematic diagram of the overall structure of the cast pile in this embodiment; Figure 3 is a schematic diagram of the connection structure between the second anti-seepage panel and the waterproof asphalt layer in this embodiment; Figure 4 is a schematic diagram of the overall structure of the first leakage locating network in this embodiment; Figure 5 is a schematic diagram of the explosion structure between the dam body and the dam foundation in this embodiment; Explanation of the accompanying drawings: 1. dam body; 2. dam foundation; 3. first anti-seepage panel; 4. corridor; 5. anti-seepage curtain; 6. second anti-seepage panel; 7. positioning hole; 8. cast pile; 801. pile body; 802. enlarged end; 803. pointed cone end; 804. overflow hole; 805. grouting port; 806. inverted pile spikes; 9. waterproof asphalt layer; 10. first leakage locating net; 1001. divergent pipe; 1002. arc pipe; 1003. raised pipe; 1004. water leakage sensor; 11. reserved pipe; 12. geotextile; 13. second leakage locating net; 14. bent pipe. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content. Example

[0031] The present invention discloses a water conservancy dam curtain grouting anti-seepage reinforcement structure, such as Figure 1 As shown, it includes a dam body 1 and a dam foundation 2, wherein a first anti-seepage panel 3 is arranged on the water retaining side of the dam body 1, aiming to directly block water penetration and reduce water from entering the dam body 1; a corridor 4 is arranged at the bottom of the dam body 1; the design of the corridor 4 provides a channel that is convenient for construction and maintenance, and at the same time can increase the overall stiffness and stability of the dam body 1; the dam foundation 2 includes a permeable layer, a weakly permeable layer and an impermeable layer from top to bottom, and an anti-seepage curtain 5 is arranged in the dam foundation 2; the anti-seepage curtain 5 formed in the dam foundation 2 injects slurry into the soil through the grouting technology to fill the pores or cracks of the soil, and uses high-strength grouting materials to form a continuous anti-seepage barrier, thereby further preventing water penetration; by arranging the first anti-seepage panel 3 and the anti-seepage curtain 5, the penetration of water in the dam body 1 is significantly reduced, and the anti-seepage efficiency of the dam body 1 is improved; the design of the corridor 4 and the layered structure of the dam foundation 2 improve the overall stability of the dam body 1 and reduce the risk of soil scouring and erosion caused by water flow.

[0032] like Figure 1 and Figure 2 As shown, a second anti-seepage panel 6 is arranged between the water retaining side of the dam body 1 and the first anti-seepage panel 3, and a plurality of positioning holes 7 are arranged inside the second anti-seepage panel 6. The plurality of positioning holes 7 are distributed in a matrix shape on the second anti-seepage panel 6, and casting piles 8 are arranged in the positioning holes 7 of the second anti-seepage panel 6. The casting piles 8 pass through the interior of the positioning holes 7 and are inserted into the dam body 1 at a downward angle, and grouting is injected into the interior of the casting piles 8. After the grouting is cured, the second anti-seepage panel 6 is fixed on the water retaining side of the dam body 1.

[0033] like Figure 1 and Figure 2 As shown, the second anti-seepage panel 6 is provided with a plurality of positioning holes 7, which are used to guide and position the casting piles 8 so that the panel maintains an accurate position during the construction process; the casting piles 8 are inserted into the dam body 1 at an angle downward, and this design enhances the bearing capacity of the pile body 801, so that a greater friction force is formed between the pile body 801 and the dam body 1, thereby improving the stability of the fixation; slurry is injected into the casting piles 8, and the slurry forms a solid connection after solidification, further strengthening the combination of the second anti-seepage panel 6 and the dam body 1, so that they form a whole in structure and enhance the anti-seepage performance; through the provision of the second anti-seepage panel 6 and the fixation of the casting piles 8, it is possible to effectively prevent water penetration and improve the overall anti-seepage ability of the dam body 1.

[0034] like Figure 2 As shown, due to the design of the cast pile 8, this structure has better seismic resistance under earthquakes or other dynamic loads, thereby improving the safety of the dam body 1; specifically, the cast pile 8 includes a pile body 801, one end of the pile body 801 forms an enlarged end 802 and the other end forms a pointed cone end 803, the pointed cone end 803 facilitates the insertion of the pile body 801 into the dam body 1, and the enlarged end 802 provides a larger contact surface, thereby enhancing its bonding force with the dam body 1; a grouting cavity is provided inside the pile body 801, and the grouting cavity is connected to a grouting hole 804 provided on the pile body 801, and a grouting port 805 connected to the grouting cavity is provided on the enlarged end 802 of the pile body 801, Waterproof cement mortar is injected into the port 805, and the waterproof cement mortar enters into the grouting cavity, and provides a channel for the slurry to overflow from the grouting cavity into the dam body 1 through the overflow hole 804; when the waterproof cement mortar is injected into the grouting port 805, the slurry will not only fill the grouting cavity, but also overflow through the overflow hole 804 and flow into the dam body 1 around the pile body 801; after the waterproof cement mortar overflows and enters the dam body 1, it is solidified to form a solid waterproof layer, thereby increasing the anti-seepage performance of the dam body 1; the solidified layer formed by injecting the waterproof cement mortar can effectively block the cracks and gaps that may exist inside the dam body 1, thereby significantly improving the anti-seepage performance of the dam body 1.

[0035] like Figure 2 As shown, the outer surface of the pile body 801 is provided with a plurality of inverted pile spikes 806, and the plurality of inverted pile spikes 806 are all inclined toward the insertion direction of the pile body 801, and the inverted pile spikes 806 are inclined toward the insertion direction of the pile body 801. This design can effectively improve the pull-out resistance of the pile body 801, and prevent the pile body 801 from being pulled out or moved under the action of external forces such as soil settlement or water flow; during the grouting process, the inverted pile spikes 806 can prevent the loss of slurry when the pile body 801 is inserted, and through the physical blocking effect, the slurry is more effectively transferred and filled in the surrounding dam body 1; by increasing the friction and locking between the pile body 801 and the surrounding medium, the inverted pile spikes 806 can improve the overall stability of the pile body 801 and reduce the risk of tilting or displacement.

[0036] like Figure 2 As shown, waterproof asphalt is poured between the first anti-seepage panel 3 and the second anti-seepage panel 6 and solidified to form a waterproof asphalt layer 9. The waterproof asphalt has excellent water-blocking properties and its dense structure can effectively prevent moisture from penetrating into the dam body 1, forming a reliable anti-seepage barrier; and the poured waterproof asphalt forms a strong bond with the first anti-seepage panel 3 and the second anti-seepage panel 6, thereby enhancing the integrity of the structure and avoiding detachment caused by changes in water pressure; in addition, the waterproof asphalt layer 9 has a certain flexibility and can adapt to these deformations during the deformation of the dam body 1, thereby reducing the risk of cracks and damage.

[0037] like Figure 3 As shown, the surface of the waterproof asphalt layer 9 is provided with a plurality of first leakage positioning nets 10 for detecting nearby water seepage points and a reserved tube 11 for pouring waterproof filler without damaging the first anti-seepage panel 3. The first leakage positioning net 10 is used to monitor the existence and position of water seepage points, while the reserved tube 11 is used to pour the waterproof filler when leakage is detected. This division of labor makes the waterproof system more efficient and orderly during maintenance. The first leakage positioning net 10 and the reserved tube 11 are staggered to avoid the impact of the filling operation on the monitoring facilities. For example, the positioning net will not be interfered with during pouring, thereby ensuring the effectiveness of the monitoring system.

[0038] like Figure 3 and Figure 4 As shown, the first leakage locating network 10 includes a plurality of diverging tubes 1001, the inner ends of the diverging tubes 1001 converge at one point, and the adjacent diverging tubes 1001 are connected by arc tubes 1002, and a spider web structure is formed between the diverging tubes 1001 and the arc tubes 1002. The network structure of the diverging tubes 1001 and the arc tubes 1002 can cover a wide area, ensuring that no matter where the water seepage occurs, it can be quickly detected; a junction is formed between the diverging tubes 1001 and the arc tubes 1002, and a protruding tube 1003 is fixedly installed on the junction, and a water leakage sensor 1004 for detecting water seepage is provided on the protruding tube 1003 The water leakage sensor 1004 uses resistance, capacitance or other technical principles to detect the presence of water; when water contacts the water leakage sensor 1004, the electrical characteristics will change, thereby triggering an alarm or recording data; the power cord runs through the inside of the raised tube 1003 to provide power for the water leakage sensor 1004; the setting of the water leakage sensor 1004 can promptly reflect the water seepage situation, quickly troubleshoot and repair faults, and reduce potential losses and impacts; the power cord on the sensor runs through the inside of the raised tube 1003, and the power cord is transmitted through the inside of the raised tube 1003, which helps to simplify wiring, reduce external contact, and reduce the risk of failure.

[0039] like Figure 3 and Figure 4 As shown, in general, a number of divergent tubes 1001 extend outward from a centralized point to form a network structure that can cover a larger area; and the arc tubes 1002 connect adjacent divergent tubes 1001 to form a flexible path that can adapt to different terrains and environments; a raised tube 1003 is installed at each intersection, and a water leakage sensor 1004 can be installed at this position to monitor water seepage.

[0040] like Figure 3 and Figure 4As shown, the diverging tube 1001, the arc tube 1002 and the protruding tube 1003 are integrally formed and made of the same material, which is low-density polyethylene. Low-density polyethylene has good corrosion resistance to a variety of chemicals and is therefore suitable for transporting chemical liquids, reducing the risk of pipeline damage due to corrosion.

[0041] like Figure 5 As shown, a geotextile 12 is provided in the dam foundation 2, and the geotextile 12 is located on one side of the anti-seepage curtain 5. The geotextile 12 has good water permeability and can allow water to pass through, while preventing the loss of soil particles and preventing the mixing of soil materials and water bodies; this helps to maintain the stability of the dam foundation 2 and reduce the settlement or erosion that may be caused by leakage; and the geotextile 12 acts as a protective barrier to separate different soil layers; this separation effect can avoid interaction between particles and maintain the structural integrity of the dam body 1; in addition; the geotextile 12 can control the direction and speed of the water flow, and help guide possible seepage to leave the dam body 1 through the set channel, thereby effectively managing the water level and pressure.

[0042] like Figure 5 As shown, a second leakage locating net 13 is provided between the geotextile 12 and the anti-seepage curtain 5. The second leakage locating net 13 and the first leakage locating net 10 have the same structure. The second leakage locating net 13 is provided to monitor the water flow inside the dam body 1 or the anti-seepage structure. When water passes through the anti-seepage curtain 5 and enters the space between the geotextile 12 and the second leakage locating net 13, the leakage will cause the water flow in the second leakage locating net 13 to change. The second leakage locating net 13 can capture and guide the water leaking from the anti-seepage curtain 5, and help to timely discover the potential problems of the dam body 1. Whether it is the failure of the geotextile 12 or the leakage of the curtain, this net can provide early signs.

[0043] A curved pipe 14 is provided between the second leakage locating net 13 and the anti-seepage curtain 5. The curved pipe 14 has a serpentine structure, and the top of the curved pipe 14 is higher than the upper surface of the dam foundation 2; the curved pipe 14 transversely penetrates the area between two adjacent rows of second leakage locating nets 13. When the second leakage locating net 13 detects that the area is leaking, waterproof mortar is injected into the interior of the curved pipe 14. After the waterproof mortar is injected, a waterproof layer can be formed in the affected area, further enhancing the waterproof performance of the dam body 1 or the structure, and realizing "self-healing"; by timely and accurate injection of waterproof mortar, the leakage point can be quickly blocked, thereby reducing or eliminating the impact of leakage on the safety of the dam body 1 and water resource management.

[0044] Working principle: During construction, the construction workers first position the second anti-seepage panel 6 on the water retaining side of the dam body 1, use a pile driver to penetrate the casting pile 8 into the interior of the positioning hole 7, and insert it into the dam body 1 at an angle downward, and inject grout into the interior of the casting pile 8. After the grouting solidifies, the second anti-seepage panel 6 is fixed on the water retaining side of the dam body 1.

[0045] Then, waterproof asphalt is poured on the second anti-seepage panel 6, and a waterproof asphalt layer 9 is formed after solidification. The waterproof asphalt layer 9 is used to block the positioning hole 7 and the gap between the positioning hole 7 and the casting pile 8, forming a reliable anti-seepage barrier.

[0046] When the waterproof asphalt is in a semi-cured state, the first leakage positioning net 10 and the reserved pipe 11 are laid on the surface of the waterproof asphalt layer 9; and finally the first anti-seepage panel 3 is installed.

[0047] Specifically, when water contacts the water leakage sensor 1004 in the first leakage locating net 10, the electrical characteristics will change, thereby triggering an alarm or recording data.

[0048] Finally, according to the construction sequence, the geotextile 12 , the second leakage locating net 13 , the elbow 14 and the anti-seepage curtain 5 are installed in sequence inside the dam foundation 2 .

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water conservancy dam curtain grouting anti-seepage reinforcement structure, comprising a dam body (1) and a dam foundation (2), characterized in that: A first anti-seepage panel (3) is arranged on the water retaining side of the dam body (1), a second anti-seepage panel (6) is arranged between the water retaining side of the dam body (1) and the first anti-seepage panel (3), a plurality of positioning holes (7) are arranged inside the second anti-seepage panel (6), a casting pile (8) is arranged inside the positioning hole (7) of the second anti-seepage panel (6), the casting pile (8) penetrates the inside of the positioning hole (7), is inserted into the dam body (1) at an angle downward, and grouting is performed toward the inside of the casting pile (8), and after the grouting is cured, the second anti-seepage panel (6) is fixed on the water retaining side of the dam body (1).

2. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 1 is characterized in that: The cast pile (8) comprises a pile body (801), a grouting cavity is provided inside the pile body (801), the grouting cavity is connected to a grouting hole (804) provided on the pile body (801), and a grouting port (805) is provided on the pile body (801) and is connected to the grouting cavity.

3. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 2 is characterized in that: The outer surface of the pile body (801) is provided with a plurality of inverted pile spikes (806), and the plurality of inverted pile spikes (806) are all arranged obliquely toward the insertion direction of the pile body (801).

4. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 1 is characterized in that: The waterproof asphalt is poured between the first anti-seepage panel (3) and the second anti-seepage panel (6) and solidifies to form a waterproof asphalt layer (9).

5. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 4 is characterized in that: The surface of the waterproof asphalt layer (9) is provided with a plurality of first leakage positioning nets (10) for detecting nearby water seepage points and reserved tubes (11) for pouring waterproof filler without damaging the first anti-seepage panel (3), and the first leakage positioning nets (10) and the reserved tubes (11) are arranged in a staggered manner.

6. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 5 is characterized in that: The first leakage locating net (10) comprises a plurality of diverging tubes (1001), the inner ends of the diverging tubes (1001) converge at one point, adjacent diverging tubes (1001) are connected via arc tubes (1002), and a spider web structure is formed between the diverging tubes (1001) and the arc tubes (1002).

7. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 6, characterized in that: An intersection is formed between the diverging tube (1001) and the arc-shaped tube (1002), a raised tube (1003) is fixedly mounted on the intersection, a water leakage sensor (1004) for detecting water seepage is provided on the raised tube (1003), and a power line on the sensor passes through the interior of the raised tube (1003).

8. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 1, characterized in that: A gallery (4) is provided at the bottom of the dam body (1), and an anti-seepage curtain (5) is provided inside the dam foundation (2).

9. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 8, characterized in that: A geotextile (12) is arranged in the dam foundation (2), the geotextile (12) is located on one side of the anti-seepage curtain (5), and a second leakage positioning net (13) is arranged between the geotextile (12) and the anti-seepage curtain (5).

10. The water conservancy dam curtain grouting anti-seepage reinforcement structure according to claim 9, characterized in that: A curved pipe (14) is provided between the second leakage locating net (13) and the anti-seepage curtain (5); the curved pipe (14) is in a serpentine structure, and the top of the curved pipe (14) is higher than the upper surface of the dam foundation (2); the curved pipe (14) transversely penetrates the area between two adjacent rows of second leakage locating nets (13).

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