Anti-piping device

Abstract

The invention discloses an anti-piping device which has the following advantages that (1) modular design is adopted, specifically, a square air bag cushion is quickly spliced through a connecting assembly and a fixing assembly, and the square air bag cushion is flexible, adapts to different dam shapes and is flexible in construction; (2) dual counterweight stability: the first counterweight assembly tightly presses the junction of the adjacent airbag cushions, the second counterweight assembly enhances the bottom anti-scouring capability, and the overall water flow impact resistance is high; (3) structure optimization: the square air bag parts are arranged, distributed and communicated, pressure is dispersed, and local stress concentration is avoided; the double-layer composite material (the braided fabric outer layer and the rubber inner layer) has both strength and tear resistance, and the service life is prolonged; and (4) rapid deployment: an inflation joint supports rapid inflation and deflation, and transportation and emergency response are facilitated.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to a device for preventing piping. Background Technology

[0002] As the core barrier of water conservancy projects, the stability of dams directly affects flood control safety. Piping in dams manifests as seepage pressure causing soil particles to be lost, forming underground channels, and ultimately leading to structural collapse, threatening the lives and property of downstream residents. This risk is exacerbated by accelerated seepage, especially in sandy dam foundations or under conditions of high water level differences, becoming one of the main causes of dam instability. Traditional protective measures, such as sand and gravel filter layers, can trap particles in the short term, but are prone to siltation and failure in the long term. Rigid drainage systems are also prone to stress concentration in dynamic water flow, leading to localized fatigue failure. Therefore, a new solution for preventing piping is urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide an anti-piping device that achieves the purpose of preventing piping by laying an airbag layer.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a piping prevention device, comprising a plurality of square airbags for laying on a dam, a connecting component disposed on one side of two adjacent airbags, a fixing component for fixing the edge of the airbag to the dam, a first counterweight component disposed at the junction of two adjacent airbags to compress the airbag, and a second counterweight component disposed at the bottom of the airbag; the airbags have a plurality of square airbag portions arranged and interconnected, and the airbags are provided with inflation connectors; the airbags are made of a double-layer composite material, the double-layer composite material of which includes a woven outer layer and a rubber inner layer composited within the woven outer layer.

[0005] By adopting the above technical solution, the following advantages are achieved: (1) Modular design: The square airbag pads are quickly assembled through connecting components and fixing components, and the square airbag pads are flexible, adapting to different dam shapes and making construction flexible; (2) Double counterweight stability: The first counterweight component presses the junction of adjacent airbag pads, and the second counterweight component enhances the bottom scour resistance, resulting in strong overall resistance to water flow impact; (3) Structural optimization: The square airbags are arranged and connected, dispersing pressure and avoiding local stress concentration; The double-layer composite material (outer woven fabric + inner rubber layer) balances strength and tear resistance, extending service life; (4) Rapid deployment: The inflation connector supports rapid inflation and deflation, facilitating transportation and emergency response.

[0006] A further feature of the present invention is that: the edge of the airbag is provided with a square flat connecting portion, each side edge of the square flat connecting portion is provided with a connecting hole, and the connecting assembly includes a plurality of cable ties that pass through the adjacent connecting holes of the two airbags respectively to achieve fixation.

[0007] By adopting the above technical solutions, the advantages of the connecting components include: (1) quick fixing: the cable ties can be used to lock adjacent airbags by passing through the connecting holes, without the need for complicated tools, and the construction efficiency is high; (2) adaptability to deformation: the cable ties have a certain elasticity and can be adjusted to loosen the connection according to the shape of the dam, avoiding structural breakage due to foundation settlement; (3) low cost: the design of the cable ties and connecting holes simplifies the production process and the material and maintenance costs are low; (4) modular expansion: the standardized connecting holes can support multi-directional splicing, and it is convenient to flexibly increase or decrease the number of airbags according to the length of the dam.

[0008] A further feature of the present invention is that the edge of the airbag cushion is provided with a square flat connecting portion, and each side edge of the square flat connecting portion is provided with a connecting hole, and the fixing component includes a plurality of pins passing through the connecting holes for fixing to the dam.

[0009] By adopting the above technical solution, the setting of the connecting hole and fixing component has the following advantages: (1) Quick installation: The matching design of the connecting hole and the pin simplifies the fixing process, and the assembly can be completed without complicated tools, thus improving the construction efficiency; (2) Stable structure: After the pin passes through the connecting hole, it is fixed on the dam, so as to firmly fix the edge of the airbag pad on the dam, enhance the overall resistance to water flow impact, and prevent displacement or falling off; (3) Strong adaptability: The multi-hole design of the square flat connecting part allows the fixing point position to be flexibly adjusted according to the shape of the dam surface, adapting to different terrain requirements; (4) Maintainability: If the edge of the connecting hole is partially damaged, the pin can be reinstalled on the connecting hole on the edge for quick repair, reducing maintenance costs.

[0010] A further configuration of the present invention is as follows: the first counterweight assembly includes two first fixing cables and a plurality of first counterweight blocks, the plurality of counterweight blocks pressing against the edge at the junction of the two airbag cushions, the first counterweight blocks having arc-shaped notches at two opposite corners, the arc-shaped notches having connecting ears, the upper and lower ends of the first fixing cables being fixed by adjacent pins, the two first fixing cables being distributed on both sides of the plurality of first counterweight blocks, and the first fixing cables passing through the connecting ears on one side of the plurality of first counterweight blocks.

[0011] By adopting the above technical solution, the two ends of the first fixing cable are fixed by pins, and each first fixing cable passes through the connecting ear on the same side of multiple first counterweights. At this time, the two first fixing cables generate lateral pressure between themselves and the two sides of the first counterweight. Through the deformation of the first fixing cable at the connection point of the connecting ear, the contact surface friction system can be increased to form a self-locking mechanism, preventing the first counterweight from sliding down and preventing the first counterweight from lateral displacement. At the same time, the arrangement of multiple first counterweights can transmit pressure to the junction of the two airbags, improving the stability of the edge of the junction of the airbags.

[0012] A further feature of the present invention is that: the edge of the airbag is provided with a square flat connecting part, and each side edge of the square flat connecting part is provided with a connecting hole; the second counterweight assembly includes a plurality of second fixing cables with one end connected to the connecting hole located below the airbag, and a second counterweight block connected below the second fixing cable and attached to the inclined surface of the dam.

[0013] By adopting the above scheme, the second counterweight component has the following advantages: (1) Anti-water scouring: One end of the second fixed cable is connected to the connection hole at the bottom of the airbag, and the other end pulls the second counterweight block to stick to the inclined surface of the dam, forming a gravity anchoring system; when piping occurs, the second counterweight block uses its own weight to offset the scouring force of the water flow on the bottom of the airbag, preventing the device from being overturned or rolled away; (2) Uniform pressing: Multiple second counterweight blocks are distributed in an array along the bottom of the airbag, and the pressure is uniformly transmitted to the contact surface between the airbag and the dam, improving the sealing performance and reducing the piping seepage channel; (3) Suppressing edge lifting: Directly constraining the bottom edge of the airbag that is most susceptible to water flow impact, preventing damage to the overall seal due to local deformation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a cross-sectional view of the material used in the airbag cushion of this invention;

[0016] Figure 3 This is a schematic diagram of the structure of the first counterweight component and the pins at the upper and lower ends used for fixing in this invention.

[0017] Figure 4 This is a magnified view of a portion of the present invention located at point A;

[0018] Figure 5 This is a magnified view of a portion of the invention located at point B.

[0019] Reference numerals: 1. Airbag cushion; 11. Square airbag part; 12. Inflation connector; 13. Outer layer of woven fabric; 14. Inner layer of rubber; 15. Square flat connecting part; 16. Connecting hole; 2. Connecting component; 21. Cable tie; 3. Fixing component; 31. Pin; 4. First counterweight component; 41. First fixing cable; 42. First counterweight block; 421. Arc-shaped notch; 422. Connecting ear; 5. Second counterweight component; 51. Second fixing cable; 52. Second counterweight block. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example: A piping prevention device, such as Figure 1 As shown, it includes multiple square airbag pads 1 for laying on the embankment, a connecting component 2 set on the side of two adjacent airbag pads 1 close to each other, a fixing component 3 for fixing the edge of the airbag pad 1 to the embankment, a first counterweight component 4 set at the junction of two adjacent airbag pads 1 to compress the airbag pad 1, and a second counterweight component 5 set at the bottom of the airbag pad 1.

[0022] like Figure 1 and Figure 2 As shown, the airbag cushion 1 has multiple square airbag sections 11 arranged in a row and interconnected. An inflation connector 12 is provided on the airbag cushion 1. The airbag cushion 1 is made of a double-layer composite material, which includes a woven outer layer 13 and a rubber inner layer 14 laminated within the woven outer layer 13. Square flat connecting portions 15 are provided along the edges of the airbag cushion 1, and connecting holes 16 are arranged on each side edge of the square flat connecting portions 15.

[0023] like Figure 1 , Figures 3 to 5 As shown, the connecting component 2 includes multiple cable ties 21 that pass through adjacent connecting holes 16 of the two airbag pads 1 to achieve fixation. The fixing component 3 includes multiple pins 31 that pass through the connecting holes 16 to fix the airbag pads on the embankment. The pins 31 are mainly used to fix the side edges and top edge of the airbag pads 1. The bottom edge of the airbag pads 1 can also be fixed during implementation (in the figure, they are only installed at the corner where the two airbag pads 1 are close to each other so that the lower end of the subsequent first fixing cable can be fixed). The appropriate position and number of pins 31 are selected according to the actual situation when fixing them.

[0024] like Figure 1 , Figures 3 to 5As shown, the first counterweight assembly 4 includes two first fixing cables 41 and multiple first counterweight blocks 42. The multiple counterweight blocks press against the edge at the junction of the two airbag cushions 1. Two diagonal corners of the first counterweight blocks 42 are provided with arc-shaped notches 421, and connecting ears 422 are provided at the arc-shaped notches 421. The upper and lower ends of the first fixing cables 41 are fixed by close-to-close pins 31 (when the pins 31 are installed, they pass directly through the gaps in the first fixing cables 41, or a buckle can be installed at the end of the first fixing cables 41 so that the two ends of the first fixing cables 41 form a circle, and the pins 31 pass through and press to fix them. The fixing structure of the pins 31 and the first fixing cables 41 is existing technology, so it has not been described in detail). The two first fixing cables 41 are distributed on both sides of the multiple first counterweight blocks 42, and the first fixing cables 41 pass through the connecting ears 422 on one side of the multiple first counterweight blocks 42. The second counterweight assembly 5 includes a plurality of second fixing cables 51 with one end connected to the connection hole 16 located below the airbag cushion 1, and a second counterweight block 52 connected below the second fixing cables 51 and attached to the inclined surface of the dam.

[0025] Implementation effect: This scheme has the following advantages: (1) Modular design: The square airbag 1 is quickly assembled by connecting component 2 and fixing component 3, and the square airbag 1 is flexible and adaptable to different dam shapes, making construction flexible; (2) Double counterweight stability: The first counterweight component 4 presses the junction of adjacent airbags 1, and the second counterweight component 5 enhances the bottom scour resistance, and the overall resistance to water flow impact is strong; (3) Structural optimization: The square airbag parts 11 are arranged and connected to disperse pressure and avoid local stress concentration; the double-layer composite material (woven outer layer 13 + rubber inner layer 14) takes into account both strength and tear resistance, and extends service life; (4) Rapid deployment: The inflation connector 12 supports rapid inflation and deflation, which is convenient for transportation and emergency response.

[0026] The advantages of the connecting component 2 include: (1) quick fixing: the cable tie 21 can be passed through the connecting hole 16 to lock the adjacent airbag pad 1 without complicated tools, and the construction efficiency is high; (2) adaptability to deformation: the cable tie 21 has a certain elasticity and can be adjusted to adjust the tightness of the connection according to the shape of the dam, so as to avoid structural breakage due to foundation settlement; (3) low cost: the design of the cable tie 21 and the connecting hole 16 simplifies the production process and the material and maintenance costs are low; (4) modular expansion: the standardized connecting hole 16 can support multi-directional splicing, and it is convenient to flexibly increase or decrease the number of airbag pads 1 according to the length of the dam.

[0027] The connection hole 16 and the fixing component 3 have the following advantages: (1) Quick installation: The design of the connection hole 16 and the pin 31 simplifies the fixing process, and the assembly can be completed without complicated tools, which improves the construction efficiency; (2) Stable structure: The pin 31 is fixed on the dam after passing through the connection hole 16, which realizes the firm fixing of the edge of the airbag pad 1 to the dam, enhances the overall resistance to water flow impact, and prevents displacement or falling off; (3) Strong adaptability: The multi-hole design of the square flat connection part 15 allows the fixing point position to be flexibly adjusted according to the shape of the dam surface, which can adapt to different terrain requirements; (4) Maintainability: If the edge of the connection hole 16 is partially damaged, the pin 31 can be reinstalled on the edge connection hole 16 for quick repair, reducing maintenance costs.

[0028] The two ends of the first fixed cable 41 are fixed by pins 31, and each first fixed cable 41 passes through the connecting ear 422 on the same side of multiple first counterweights 42. At this time, the two first fixed cables 41 and the two sides of the first counterweights 42 respectively generate lateral pressure. Through the deformation of the first fixed cable 41 at the connection point of the connecting ear 422, the contact surface friction system can be increased to form a self-locking mechanism, preventing the first counterweights 42 from sliding down and preventing the first counterweights 42 from lateral displacement. At the same time, the arrangement of multiple first counterweights 42 can transmit pressure to the junction of the two airbags 1, improving the stability of the edge of the junction of the airbags 1.

[0029] The second counterweight component 5 has the following advantages: (1) Anti-erosion by water flow: One end of the second fixed cable 51 is connected to the connection hole 16 at the bottom of the airbag pad 1, and the other end pulls the second counterweight block 52 to stick to the inclined surface of the dam, forming a gravity anchoring system; when piping occurs, the second counterweight block 52 uses its own weight to offset the erosion force of the water flow on the bottom of the airbag pad 1, preventing the device from being overturned or rolled away; (2) Uniform pressing: Multiple second counterweight blocks 52 are distributed in an array along the bottom of the airbag pad 1, and the pressure is uniformly transmitted to the contact surface between the airbag pad 1 and the dam, improving the sealing performance and reducing the piping seepage channel; (3) Suppressing edge lifting: Directly constrains the bottom edge of the airbag pad 1 that is most susceptible to water flow impact, preventing damage to the overall seal due to local deformation.

[0030] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for preventing piping, characterized by: The utility model provides a square air bag cushion for dam, it includes a plurality of square air bag cushion (1) for laying on the dam, the connecting assembly (2) of setting up in the side of two adjacent air bag cushion (1) close to each other, the fixed assembly (3) for fixing the edge of air bag cushion (1) on the dam, the first counterweight assembly (4) of setting up in the junction of two adjacent air bag cushion (1) to realize the compaction air bag cushion (1), the second counterweight assembly (5) of setting up in the bottom of air bag cushion (1); The air bag cushion (1) is formed with a plurality of square air bag parts (11) arranged and communicated with each other, and the air bag cushion (1) is provided with an inflation joint (12); the air bag cushion (1) is made of double-layer composite material, and the double-layer composite material selected for the air bag cushion (1) includes a woven outer layer (13) and a rubber inner layer (14) compounded in the woven outer layer (13).

2. A device for preventing piping according to claim 1, characterized in that: The edge of the air bag cushion (1) is provided with a square flat connecting part (15), each side edge of the square flat connecting part (15) is arranged with a connecting hole (16), and the connecting assembly (2) includes a plurality of fixing buckles (21) penetrating through the connecting holes (16) of the two air bag cushions (1) close to each other.

3. A device according to claim 1, wherein: The edge of the air bag cushion (1) is provided with a square flat connecting part (15), each side edge of the square flat connecting part (15) is arranged with a connecting hole (16), and the fixed assembly (3) includes a plurality of pins (31) penetrating through the connecting holes (16) and used for fixing on the dam.

4. A device according to claim 2, wherein: The first counterweight assembly (4) includes two first fixed cables (41) and a plurality of first counterweight blocks (42), the first counterweight blocks (42) are arranged at the edges of the junction of the two air bag cushions (1), two diagonal first counterweight blocks (42) are provided with arc-shaped notches (421), the arc-shaped notches (421) are provided with connecting ears (422), the upper and lower ends of the first fixed cables (41) are fixed by the pins (31) close to each other, the two first fixed cables (41) are arranged on the two sides of the plurality of first counterweight blocks (42), and the first fixed cables (41) penetrate through the connecting ears (422) on one side of the plurality of first counterweight blocks (42).

5. A device according to claim 1, wherein: The edge of the air bag cushion (1) is provided with a square flat connecting part (15), each side edge of the square flat connecting part (15) is arranged with a connecting hole (16), and the second counterweight assembly (5) includes a plurality of second fixed cables (51) connected to the connecting holes (16) of the air bag cushion (1) below and a second counterweight block (52) connected below the second fixed cables (51) and attached to the inclined surface of the dam.

Images