Cofferdam anti-seepage device for reservoir engineering

Abstract

The utility model discloses a cofferdam anti-seepage device for reservoir engineering, and relates to the technical field of cofferdams, the cofferdam anti-seepage device comprises an anti-seepage device, the anti-seepage device comprises a clay core wall, an anti-seepage plate is detachably installed on the front side of the clay core wall, a locking plate is detachably installed on the top of the anti-seepage plate and the top of the clay core wall, and the locking plate is detachably installed on the anti-seepage plate and the top of the clay core wall. An anti-seepage unit is arranged on the front side of the anti-seepage plate, and a limiting unit is arranged on the rear side of the anti-seepage plate. The geotechnical cloth membrane layer is arranged on the rear side of the anti-seepage plate, the anti-seepage purpose is improved by means of the sealing performance of the geotechnical cloth membrane layer, the protection plate and the reset spring are arranged, and certain buffering resistance is achieved for impact of water flow by means of elastic matching of the protection plate and the reset spring. Water flow is prevented from directly impacting on the anti-seepage plate to damage the anti-seepage plate to affect the anti-seepage effect and the service life of the anti-seepage plate, the flow guide battens are arranged, inclined curved surfaces on the two sides of the flow guide battens are used for guiding the water flow impacting on the protection plate in different directions, the water flow impact force is reduced, and then the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cofferdam technology, specifically to a cofferdam seepage prevention device for reservoir engineering. Background Technology

[0002] Water conservancy projects are engineering projects built to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. They are also called water projects. Water is an essential and precious resource for human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can we control water flow, prevent floods, and regulate and distribute water to meet the needs of people's life and production for water resources.

[0003] With the rapid development of water conservancy projects, cofferdams are temporary retaining structures built for the construction of permanent water conservancy facilities. Their function is to prevent water and soil from entering the construction site, facilitating drainage, excavation of foundation pits, and construction of structures within the cofferdam. However, cofferdam structures used in water conservancy projects still have some shortcomings. Many cofferdams are made of concrete or are simple sketch structures, which are not convenient for preventing seepage. Therefore, we provide a cofferdam seepage prevention device for reservoir projects. Utility Model Content

[0004] The purpose of this utility model is to provide a cofferdam seepage prevention device for reservoir engineering, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A seepage prevention device for a reservoir project includes a seepage prevention device, which includes a clay core wall. A seepage prevention plate is detachably installed on the front side of the clay core wall, and a locking plate is detachably installed on the top of the seepage prevention plate and the clay core wall.

[0007] The front side of the seepage barrier is provided with a seepage barrier unit, and the rear side of the seepage barrier is provided with a limit unit.

[0008] The seepage prevention unit includes a water guide groove opened on the outer surface of the front of the seepage prevention plate, a protective plate is provided in front of the seepage prevention plate, and a geotextile membrane layer is fixedly connected to the rear side of the seepage prevention plate. The geotextile membrane layer is provided to improve the seepage prevention purpose by utilizing its sealing performance.

[0009] A further improvement of this utility model is that: a guide strip is fixedly installed on the outer surface of the protective plate, and multiple sets of the guide strip are provided. A piston rod is fixedly installed on all four sides of the rear side of the protective plate. The guide strip utilizes the inclined curved surfaces on both sides to divert and guide the water flow impacting the protective plate, thereby reducing the force of the water flow.

[0010] A further improvement of the present invention is that a sleeve is slidably sleeved on the outer surface of the other end of the piston rod, and a limiting plate is fixedly installed on the other end of the piston rod, the limiting plate being slidably connected to the inner wall of the sleeve.

[0011] A further improvement of this utility model is that a reset spring is fixedly installed on one outer surface of the limiting plate, and the other end of the reset spring is fixedly installed at the bottom of the inner end of the sleeve. The protective plate and the reset spring are set up to make the impact of the water flow have a certain buffering resistance by using their elastic cooperation.

[0012] A further improvement of this utility model is that the limiting unit includes an anchor rod fixedly installed on the rear side of the seepage-proof board. The anchor rod is fixedly inserted into the inside of the clay core wall. An anti-detachment hook is fixedly sleeved on the outer surface of the anchor rod. The anchor rod is set on the rear side of the seepage-proof board and embedded in the inside of the clay core wall to play a fixed limiting role. The anti-detachment hook can prevent detachment.

[0013] A further improvement of this utility model is that: a locking hole 1 is provided at both ends of the top of the clay core wall and at both ends of the top of the anti-seepage plate, and a locking hole 2 is provided on all four sides of the top of the locking plate.

[0014] A further improvement of this utility model is that: a locking rod is provided on all four sides of the top of the locking plate, and the other end of the locking rod passes through the second locking hole and is inserted into the inside of the first locking hole.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a seepage prevention device for cofferdams in reservoir engineering. By setting a geotextile membrane layer on the back side of the seepage prevention board, the seepage prevention purpose is improved by utilizing its sealing performance. The protective plate and the return spring are set up to provide a certain buffer resistance to the impact of water flow, so as to avoid the water flow directly impacting the seepage prevention board and causing damage to the seepage prevention board, thus affecting its seepage prevention effect and service life. The guide strip is set up to divert the water flow impacting the protective plate by using the inclined curved surfaces on both sides, thereby reducing the impact force of the water flow.

[0017] 2. This utility model provides a seepage prevention device for cofferdams in reservoir engineering. By setting anchor rods on the rear side of the seepage prevention plate and embedding them inside the clay core wall, it plays a role in fixing and limiting the position. With the help of anti-detachment hooks, it can prevent detachment. Furthermore, by locking the locking plate to the top of the clay core wall and the seepage prevention plate, and locking it with the locking rod, it can further promote stability. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the locking plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the seepage-proof board structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the protective plate structure of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A.

[0023] In the diagram: 1. Anti-seepage device; 2. Clay core wall; 21. Locking hole one; 3. Anti-seepage board; 31. Geotextile membrane layer; 32. Anchor rod; 33. Anti-detachment hook; 34. Water guide channel; 35. Protective plate; 36. Flow guide plate; 37. Piston rod; 38. Sleeve; 39. Limiting plate; 310. Return spring; 4. Locking plate; 41. Locking hole two; 42. Locking rod. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figures 1-5As shown, this utility model provides a seepage prevention device for a cofferdam in a reservoir project, including a seepage prevention device 1. The seepage prevention device 1 includes a clay core wall 2. A seepage prevention plate 3 is detachably installed on the front side of the clay core wall 2. A locking plate 4 is detachably installed on the top of the seepage prevention plate 3 and the clay core wall 2. A seepage prevention unit is provided on the front side of the seepage prevention plate 3, and a limiting unit is provided on the rear side of the seepage prevention plate 3. The seepage prevention unit includes a water guide groove 34 opened on the outer surface of the front of the seepage prevention plate 3. A protective plate 35 is provided in front of the seepage prevention plate 3, and a fixed connection is provided on the rear side of the seepage prevention plate 3. A guide strip 36 is fixedly installed on the outer surface of the geotextile membrane layer 31 and the protective plate 35. Multiple sets of guide strips 36 are provided. A piston rod 37 is fixedly installed on all four sides of the rear side of the protective plate 35. A sleeve 38 is slidably sleeved on the outer surface of the other end of the piston rod 37. A limit plate 39 is fixedly installed on the other end of the piston rod 37. The limit plate 39 is slidably connected to the inner wall of the sleeve 38. A return spring 310 is fixedly installed on one outer surface of the limit plate 39. The other end of the return spring 310 is fixedly installed at the bottom of the inner side of the sleeve 38.

[0027] Furthermore, a geotextile membrane layer 31 is provided on the rear side of the impermeable board 3. Its sealing performance is used to improve the impermeability. By setting up a protective plate 35, the elastic cooperation between the protective plate 35 and the return spring 310 provides a certain buffering resistance to the impact of the water flow, preventing the water flow from directly impacting the impermeable board 3 and causing damage to the impermeable board 3, thus affecting its impermeability and service life. A flow guide plate 36 is set up to use its inclined curved surfaces on both sides to divert and guide the water flow impacting the protective plate 35, thereby reducing the impact force of the water flow.

[0028] Example 2

[0029] like Figures 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the limiting unit includes an anchor rod 32 fixedly installed on the rear side of the impermeable plate 3. The anchor rod 32 is fixedly inserted into the interior of the clay core wall 2. An anti-disengagement hook 33 is fixedly sleeved on the outer surface of the anchor rod 32. Locking holes 1 21 are provided at both ends of the top of the clay core wall 2 and at both ends of the top of the impermeable plate 3. Locking holes 2 41 are provided around the top of the locking plate 4. Locking rods 42 are provided around the top of the locking plate 4. The other end of the locking rod 42 passes through the locking hole 2 41 and is inserted into the interior of the locking hole 1 21.

[0030] Furthermore, by installing the impermeable plate 3 on the front side of the clay core wall 2 and embedding the anchor rod 32 inside the clay core wall 2, it plays a role in fixing and limiting the position. With the anti-detachment hook 33, it can prevent detachment. Furthermore, by locking the locking plate 4 to the top of the clay core wall 2 and the impermeable plate 3 and locking it with the locking rod 42, stability can be further promoted.

[0031] The working principle of the cofferdam seepage prevention device used in this reservoir project will be explained in detail below.

[0032] like Figures 1-5 As shown, during use, the impermeable plate 3 is installed on the front side of the clay core wall 2, and the anchor rod 32 is embedded inside the clay core wall 2 to fix and limit its position. The anti-detachment hook 33 can prevent it from falling off. The locking plate 4 is snapped into the top of the clay core wall 2 and the impermeable plate 3, and locked with the locking rod 42 to further promote stability. The rear side of the impermeable plate 3 is provided with a geotextile membrane layer 31, which improves the impermeability by utilizing its sealing performance. The protective plate 35 is set, and the elastic cooperation between the protective plate 35 and the return spring 310 provides a certain buffering resistance to the impact of the water flow, so as to avoid the water flow directly impacting the impermeable plate 3 and causing damage to the impermeable plate 3, thus affecting its impermeability and service life. The guide strip 36 is set to use its inclined curved surfaces on both sides to divert the water flow impacting the protective plate 35, thereby reducing the water flow force.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A seepage prevention device for a cofferdam used in reservoir engineering, comprising a seepage prevention device (1), characterized in that: The seepage prevention device (1) includes a clay core wall (2), a seepage prevention plate (3) is detachably installed on the front side of the clay core wall (2), and a locking plate (4) is detachably installed on the top of the seepage prevention plate (3) and the clay core wall (2). The front side of the seepage-proof board (3) is provided with a seepage-proof unit, and the rear side of the seepage-proof board (3) is provided with a limit unit; The seepage prevention unit includes a water guide groove (34) opened on the outer surface in front of the seepage prevention plate (3), a protective plate (35) is provided in front of the seepage prevention plate (3), and a geotextile membrane layer (31) is fixedly connected to the rear side of the seepage prevention plate (3).

2. The seepage prevention device for a cofferdam in a reservoir project according to claim 1, characterized in that: A flow guide plate (36) is fixedly installed on the outer surface of the protective plate (35). Multiple sets of the flow guide plate (36) are provided. A piston rod (37) is fixedly installed on all four sides of the rear side of the protective plate (35).

3. The seepage prevention device for a cofferdam in a reservoir project according to claim 2, characterized in that: A sleeve (38) is slidably sleeved on the outer surface of the other end of the piston rod (37), and a limiting plate (39) is fixedly installed on the other end of the piston rod (37). The limiting plate (39) is slidably connected to the inner wall of the sleeve (38).

4. The seepage prevention device for a cofferdam in a reservoir project according to claim 3, characterized in that: A reset spring (310) is fixedly installed on one outer surface of the limiting plate (39), and the other end of the reset spring (310) is fixedly installed at the bottom of the sleeve (38).

5. A cofferdam seepage prevention device for reservoir engineering according to claim 1, characterized in that: The limiting unit includes an anchor rod (32) fixedly installed on the rear side of the impermeable plate (3). The anchor rod (32) is fixedly inserted into the inside of the clay core wall (2). An anti-disengagement hook (33) is fixedly sleeved on the outer surface of the anchor rod (32).

6. A cofferdam seepage prevention device for reservoir engineering according to claim 1, characterized in that: Locking holes 1 (21) are provided at both ends of the top of the clay core wall (2) and at both ends of the top of the impermeable plate (3), and locking holes 2 (41) are provided around the top of the locking plate (4).

7. A cofferdam seepage prevention device for reservoir engineering according to claim 6, characterized in that: Locking rods (42) are provided on all four sides of the top of the locking plate (4). The other end of the locking rods (42) passes through the second locking hole (41) and is inserted into the inside of the first locking hole (21).

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