Anti-seepage structure suitable for deep and thick covering layer dam foundation
By designing protective devices on the basis of the deep cover layer of the dam, and using the combination of springs and slip rings to buffer the impact force of the flood, the problem of cracks and seepage in the dam's seepage prevention layer is solved, and the problem of cracks and seepage in the flood erosion process is improved. The anti-seepage performance and water storage safety of the dam.
Patent Information
- Application Number
- CN202422521761.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-10-18
AI Technical Summary
The existing dams have a risk of seepage on the basis of deep cover, especially during flood erosion, where cracks are easily present in the anti-seepage layer, resulting in water leakage.
An anti-seepage structure is designed, including a dam body, an anti-seepage layer, a mounting base and a protective device. The protective device consists of a shell, a slide rod, a slip ring, a spring, a hinge plate, a buffer plate and a water barrier strip. When the flood impacts, the water barrier strip drives the buffer plate and the support rod to move. The slip ring and the spring buffer the impact force to protect the Anti-seepage layer.
Effectively weaken the impact force of floods, reduce the damage risk of anti-seepage layer, reduce water seepage phenomenon, and improve the safety and efficiency of the dam's water storage.
Smart Images
Figure CN222455974U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dam anti-seepage protection, in particular to an anti-seepage structure suitable for a dam foundation with a thick covering layer. Background Art
[0002] A dam is a water-retaining structure that intercepts water flow in rivers and channels to raise water levels or regulate flow. During long-term use, reservoir dams may experience seepage problems due to continuous erosion of their surfaces caused by floods.
[0003] During the construction of water conservancy and hydropower projects, many projects' dams will involve their foundations located on a thick covering layer (gravel layer) of the riverbed. The anti-seepage of the thick covering layer is crucial, and its structural safety directly affects the water storage safety and water storage efficiency of the project. If the existing water conservancy and hydropower project dams are built on a thick covering layer, in order to prevent water from seeping through the dam, it is necessary to set a concrete anti-seepage layer for anti-seepage during the construction of the dam. However, during the flood scouring process, the impact force will still be continuously transmitted to the anti-seepage layer of the dam. The anti-seepage layer of the dam that is in a flood scouring state for a long time will still cause cracks inside it under the influence of the impact force, and there will still be a risk of water seepage. Utility Model Content
[0004] The utility model aims to solve the technical problems in the above background and proposes an anti-seepage structure suitable for the dam foundation with a thick overburden.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-seepage structure suitable for the foundation of a dam with a deep overburden layer, comprising a dam body, an anti-seepage layer is provided on the inclined surface of the dam body, a mounting seat is fixedly installed on the inclined surface of the dam body, a protective device is provided inside the mounting seat, the protective device comprises a shell, the shell is movably installed inside the mounting seat, a sliding rod is fixedly installed between the inner walls on both sides of the shell, two slip rings are slidably connected to the surface of the sliding rod, and a spring is fixedly installed between the two slip rings. The setting of the spring has the effect of limiting the position of the slip ring on the surface of the sliding rod.
[0006] Preferably, the annular side wall of the slip ring is hinged with a hinge plate, the end of the hinge plate away from the slip ring is hinged with a buffer plate, and the surface of the buffer plate is evenly fixed with a plurality of water retaining strips. The setting of the hinge plate has the effect of driving the slip ring to move on the surface of the slide rod.
[0007] Preferably, two hollow columns are fixedly installed on the inner bottom surface of the shell, and support rods are slidably connected inside the two hollow columns, and one end of the support rod away from the hollow column is fixedly connected to the buffer plate. The arrangement of the hollow column and the support rod allows the buffer plate to move stably.
[0008] Preferably, a fixing device is provided on the top surface of the dam body, and the fixing device includes a U-shaped plate, and the U-shaped plate is fixedly installed on the top surface of the dam body, and a threaded rod is rotatably connected between the inner walls at both ends of the U-shaped plate, and a motor is fixedly installed on one end of the U-shaped plate, and the output end of the motor is fixedly connected to the threaded rod. The setting of the motor plays an effect of driving the threaded rod to rotate.
[0009] Preferably, a groove is formed on the inner wall surface of the U-shaped plate, and a T-shaped plate is threadedly connected to the surface of the threaded rod. The arrangement of the threaded rod has the effect of driving the T-shaped plate to move inside the groove.
[0010] Preferably, two positioning rods are fixedly mounted on the surface of the horizontal end of the T-shaped plate, a long strip is fixedly mounted on the top surface of the shell, two positioning seats are fixedly mounted on the surface of the long strip, and positioning holes are provided on the surfaces of the two positioning seats. The positioning rods and positioning holes are arranged to limit the shell inside the mounting seat.
[0011] Compared with the prior art, the advantages and positive effects of the utility model are:
[0012] 1. In the utility model, by setting a protective device, when a flood hits the dam body, it will first hit the water retaining bar. When the water retaining bar is hit by the flood, it will drive the buffer plate to move toward the inner cavity of the shell. The movement of the buffer plate toward the inner cavity of the shell will drive the support rod to move toward the inside of the hollow column. At the same time, the movement of the buffer plate toward the inner cavity of the shell also drives the hinged plate to move. The movement of the hinged plate pushes the two sliding rings to move away from each other on the surface of the sliding rod. The two sliding rings move away from each other on the surface of the sliding rod and drive the spring to stretch. At this time, the resilience of the spring is used to buffer the impact force received by the buffer plate, so as to weaken the impact force of the flood to a certain extent, thereby protecting the anti-seepage layer of the dam body. Through the cooperation of the above-mentioned structure, the water retaining bar cooperates with the buffer plate to play a role in buffering water potential, thereby offsetting a part of the impact force applied by the flood on the dam body, and effectively protecting the anti-seepage layer of the dam body.
[0013] 2. In the utility model, by setting a fixing device, when the entire protective device is damaged after long-term use and needs to be replaced, the motor is started first, and the motor starts to drive the threaded rod to rotate. The rotation of the threaded rod drives the T-plate to move inside the groove. The movement of the T-plate inside the groove drives the positioning rod to move. The positioning rod moves so that it moves out of the positioning hole. The positioning rod and the positioning hole are separated so that the shell loses its limit inside the mounting seat. At this time, the shell can be taken out from the inside of the mounting seat and replaced with a new shell. Through the cooperation of the above-mentioned structure, the shell and the mounting seat can be disassembled, so that when the protective device is damaged, it can be replaced in time, which further improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A three-dimensional structural schematic diagram of an anti-seepage structure suitable for a dam foundation with a thick overburden layer is proposed for the utility model;
[0015] Figure 2 The utility model provides a left-side structural schematic diagram of an anti-seepage structure suitable for a dam foundation with a thick overburden layer;
[0016] Figure 3 The utility model proposes a structural schematic diagram of an anti-seepage structure protection device suitable for a dam foundation with a thick overburden layer;
[0017] Figure 4 The utility model proposes an anti-seepage structure suitable for the dam foundation with deep overburden layer. Figure 2 The structural diagram at A in the middle;
[0018] Legend:
[0019] 1. Dam body; 2. Anti-seepage layer; 3. Mounting seat; 4. Protective device; 41. Shell; 42. Sliding rod; 43. Slip ring; 44. Spring; 45. Hinge plate; 46. Buffer plate; 47. Water retaining strip; 48. Hollow column; 49. Support rod; 5. Fixing device; 51. U-shaped plate; 52. Threaded rod; 53. Motor; 54. Groove; 55. T-shaped plate; 56. Positioning rod; 57. Long strip plate; 58. Positioning seat; 59. Positioning hole. DETAILED DESCRIPTION
[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0022] See also Figure 1-4 The utility model provides a technical solution: an anti-seepage structure suitable for a dam foundation with a deep overburden layer, comprising a dam body 1, an anti-seepage layer 2 is arranged on the inclined surface of the dam body 1, and a mounting seat 3 is fixedly installed on the inclined surface of the dam body 1.
[0023] The specific arrangement and function of the protective device 4 and the fixing device 5 will be described in detail below.
[0024] In the present embodiment: a protective device 4 is provided inside the mounting seat 3, and the protective device 4 includes a shell 41, which is movably mounted inside the mounting seat 3, and a slide rod 42 is fixedly mounted between the inner walls on both sides of the shell 41, and two slip rings 43 are slidably connected to the surface of the slide rod 42, and a spring 44 is fixedly mounted between the two slip rings 43.
[0025] In this embodiment, the setting of the spring 44 has the effect of limiting the position of the sliding ring 43 on the surface of the sliding rod 42 .
[0026] Specifically, a hinge plate 45 is hingedly connected to the annular side wall of the slip ring 43 , and a buffer plate 46 is hingedly connected to one end of the hinge plate 45 away from the slip ring 43 . A plurality of water retaining strips 47 are evenly fixedly installed on the surface of the buffer plate 46 .
[0027] In this embodiment, the setting of the hinge plate 45 plays an effect of driving the sliding ring 43 to move on the surface of the sliding rod 42 .
[0028] Specifically, two hollow columns 48 are fixedly installed on the inner bottom surface of the housing 41, and support rods 49 are slidably connected inside the two hollow columns 48, and one end of the support rod 49 away from the hollow column 48 is fixedly connected to the buffer plate 46. The arrangement of the hollow column 48 and the support rod 49 has the effect of allowing the buffer plate 46 to move stably.
[0029] In this embodiment: a fixing device 5 is provided on the top surface of the dam body 1, and the fixing device 5 includes a U-shaped plate 51, which is fixedly installed on the top surface of the dam body 1, and a threaded rod 52 is rotatably connected between the inner walls at both ends of the U-shaped plate 51, and a motor 53 is fixedly installed on one end of the U-shaped plate 51, and the output end of the motor 53 is fixedly connected to the threaded rod 52. When the entire protective device 4 is damaged after long-term use and needs to be replaced, the motor 53 is first started. The motor 53 starts to drive the threaded rod 52 to rotate. The rotation of the threaded rod 52 drives the T-plate 55 to move inside the groove 54. The movement of the T-plate 55 inside the groove 54 drives the positioning rod 56 to move. The positioning rod 56 moves to move itself out of the positioning hole 59. The positioning rod 56 and the positioning hole 59 are separated so that the shell 41 loses its limit in the mounting seat 3. At this time, the shell 41 can be taken out from the mounting seat 3 and replaced with a new shell 41. Through the cooperation of the above-mentioned structure, the shell 41 and the mounting seat 3 can be disassembled, so that it is convenient to replace it in time when the protective device is damaged, thereby further improving the practicality of the device.
[0030] Specifically, a groove 54 is formed on the inner wall surface of the U-shaped plate 51 , and a T-shaped plate 55 is threadedly connected to the surface of the threaded rod 52 .
[0031] In this embodiment, the threaded rod 52 is provided to drive the T-shaped plate 55 to move inside the groove 54 .
[0032] Specifically, two positioning rods 56 are fixedly installed on the surface of the horizontal end of the T-shaped plate 55, a long plate 57 is fixedly installed on the top surface of the shell 41, and two positioning seats 58 are fixedly installed on the surface of the long plate 57. Positioning holes 59 are opened on the surfaces of the two positioning seats 58.
[0033] In this embodiment, the positioning rod 56 and the positioning hole 59 are provided to limit the housing 41 inside the mounting seat 3 .
[0034] Working principle: by setting the protective device 4, when the flood hits the dam body 1, it will first hit the water retaining bar 47. When the water retaining bar 47 is hit by the flood, it will drive the buffer plate 46 to move toward the inner cavity of the shell 41. The movement of the buffer plate 46 toward the inner cavity of the shell 41 will drive the support rod 49 to move toward the inside of the hollow column 48. At the same time, the movement of the buffer plate 46 toward the inner cavity of the shell 41 also drives the hinged plate 45 to move. The movement of the hinged plate 45 pushes the two sliding rings 43 to move away from each other on the surface of the sliding rod 42. The two sliding rings 43 move away from each other on the surface of the sliding rod 42 and drive the spring 44 to stretch. At this time, the rebound force of the spring 44 is used to buffer the impact force of the buffer plate 46, so as to weaken the impact force of the flood to a certain extent, thereby protecting the anti-seepage layer 2 of the dam body 1. Through the cooperation of the above-mentioned structure, the water retaining bar 47 cooperates with the buffer plate 46 to play a role in buffering water potential, thereby offsetting a part of the impact force applied by the flood on the dam body 1, and effectively protecting the anti-seepage layer 2 of the dam body 1. When the entire protective device 4 is damaged after long-term use and needs to be replaced, the motor 53 is first started. The motor 53 starts to drive the threaded rod 52 to rotate. The rotation of the threaded rod 52 drives the T-plate 55 to move inside the groove 54. The movement of the T-plate 55 inside the groove 54 drives the positioning rod 56 to move. The positioning rod 56 moves to move itself out of the positioning hole 59. The positioning rod 56 and the positioning hole 59 are separated so that the shell 41 loses its limit in the mounting seat 3. At this time, the shell 41 can be taken out from the mounting seat 3 and replaced with a new shell 41. Through the cooperation of the above-mentioned structure, the shell 41 and the mounting seat 3 can be disassembled, so that it is convenient to replace it in time when the protective device is damaged, thereby further improving the practicality of the device.
[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. An anti-seepage structure suitable for a dam foundation with a thick overburden layer, comprising a dam body (1), an anti-seepage layer (2) being provided on the inclined surface of the dam body (1), and a mounting seat (3) being fixedly mounted on the inclined surface of the dam body (1), characterized in that: A protective device (4) is provided inside the mounting seat (3), and the protective device (4) comprises a shell (41), the shell (41) is movably mounted inside the mounting seat (3), a sliding rod (42) is fixedly mounted between the inner walls on both sides of the shell (41), two slip rings (43) are slidably connected to the surface of the sliding rod (42), and a spring (44) is fixedly mounted between the two slip rings (43).
2. The anti-seepage structure for dam foundation with deep overburden layer according to claim 1, characterized in that: The annular side wall of the slip ring (43) is hinged with a hinge plate (45), one end of the hinge plate (45) away from the slip ring (43) is hinged with a buffer plate (46), and a plurality of water retaining strips (47) are evenly fixedly mounted on the surface of the buffer plate (46).
3. The anti-seepage structure suitable for dam foundation with deep overburden layer according to claim 2, characterized in that: Two hollow columns (48) are fixedly mounted on the inner bottom surface of the shell (41), and support rods (49) are slidably connected inside the two hollow columns (48). One end of the support rod (49) away from the hollow column (48) is fixedly connected to the buffer plate (46).
4. The anti-seepage structure for a dam foundation with a deep overburden layer according to claim 3 is characterized by: The top surface of the dam body (1) is provided with a fixing device (5), the fixing device (5) comprising a U-shaped plate (51), the U-shaped plate (51) being fixedly mounted on the top surface of the dam body (1), a threaded rod (52) being rotatably connected between the inner walls at both ends of the U-shaped plate (51), a motor (53) being fixedly mounted on one end of the U-shaped plate (51), and an output end of the motor (53) being fixedly connected to the threaded rod (52).
5. The anti-seepage structure suitable for dam foundation with deep overburden layer according to claim 4, characterized in that: The inner wall surface of the U-shaped plate (51) is provided with a groove (54), and the surface of the threaded rod (52) is threadedly connected with a T-shaped plate (55).
6. The anti-seepage structure suitable for dam foundation with deep overburden layer according to claim 5, characterized in that: Two positioning rods (56) are fixedly mounted on the surface of the horizontal end of the T-shaped plate (55), a long strip plate (57) is fixedly mounted on the top surface of the shell (41), two positioning seats (58) are fixedly mounted on the surface of the long strip plate (57), and positioning holes (59) are provided on the surfaces of the two positioning seats (58).