Under-membrane drainage device suitable for geomembrane seepage prevention

Abstract

The under-membrane drainage device comprises an anti-seepage layer, a supporting assembly, a water collecting device and a plurality of drainage pipes, the top of the supporting assembly is fixedly connected with the anti-seepage layer, the bottom of the supporting assembly is fixedly connected with the water collecting device, the supporting assembly comprises a plurality of supporting plates, the supporting plates are arranged perpendicular to the ground, and the drainage pipes are arranged on the supporting plates. The supporting plates are arranged in a #-shaped staggered mode, the water collecting device is arranged underground, the drainage pipe is arranged below the water collecting device, and the drainage pipe is communicated with the water collecting device through a plurality of connecting channels. The geomembrane can contain a large amount of accumulated water and disperse water flow, the drainage efficiency is improved, and the service life of the geomembrane is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage, in particular to an under-membrane drainage device suitable for geomembrane anti-seepage. Background Art

[0002] Geomembrane is a geotechnical anti-seepage material that is made of plastic film as an anti-seepage substrate and a composite of non-woven fabrics. Its main mechanism is to use the impermeability of the plastic film to block underground water leakage channels. It is an important civil engineering material and is widely used in the construction of various projects and environmental protection. The sub-membrane drainage device of the geomembrane is a key part to ensure the operation of the geomembrane drainage system. The sub-membrane drainage device is mainly to ensure that the moisture under the geomembrane can be discharged to a limited extent to avoid the formation of water accumulation or increase in water pressure, which causes the geomembrane to float, move or even rupture, and to a certain extent prolong the service life of the geomembrane.

[0003] Chinese patent document CN216339626U discloses a drainage structure under an impermeable geomembrane at the bottom of a reservoir, including an impermeable layer and a permeable geosynthetics layer on the lower side of the impermeable layer, wherein a crushed stone cushion layer, a transition layer and a drainage pipe are sequentially arranged on the lower side of the permeable geosynthetics layer, and a water guide mechanism is arranged inside the permeable geosynthetics layer, and the two are connected by a connecting pipe mechanism, which can prevent water from accumulating on the lower side of the impermeable layer, has a convenient drainage function, and can prevent the pipes in the drainage structure from being blocked and affecting the drainage efficiency, has a convenient disassembly and cleaning function, and improves the service life of the drainage structure. However, when the amount of water accumulated in a certain area is too large, the above patent cannot achieve rapid drainage, and the geomembrane will still float or rupture. The utility model proposes a sub-membrane drainage device with other structures suitable for geomembrane anti-seepage. Utility Model Content

[0004] The utility model aims to provide a sub-membrane drainage device suitable for geomembrane anti-seepage, which can accommodate a large amount of accumulated water and disperse the water flow, thereby improving the drainage efficiency and extending the service life of the geomembrane.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A sub-membrane drainage device suitable for geomembrane anti-seepage, comprising an anti-seepage layer, a support assembly, a water collection device and a plurality of drainage pipes, wherein the top of the support assembly is fixedly connected to the anti-seepage layer, and the bottom of the support assembly is fixedly connected to the water collection device, the support assembly comprises a plurality of support plates, the support plates are arranged perpendicular to the ground, and the plurality of support plates are arranged in a staggered manner in a tic-tac-toe shape, the water collection device is arranged underground, the drainage pipe is arranged below the water collection device, and the drainage pipe is connected to the water collection device through a plurality of connecting channels.

[0007] As a preferred technical solution, a plurality of through holes are formed in the support plate.

[0008] As a preferred technical solution, the water collection device includes a plurality of water collection tanks, and the water collection tanks are arranged in a grid pattern.

[0009] As a preferred technical solution, the bottom of the support plate is fixedly arranged in the middle of two adjacent water collection tanks.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, a space for accommodating accumulated water is provided by the support plate. When the local accumulated water is too much, it can be accommodated in the space provided by the support plate, and the through holes on the support plate can disperse the accumulated water, avoiding the floating or rupture of the geomembrane caused by excessive accumulated water, and increasing the service life of the geomembrane.

[0012] 2. In the utility model, a plurality of grid-shaped water collection tanks can disperse the water flow, improve the drainage efficiency, and reduce the phenomenon of local water accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes in detail the specific embodiments of the utility model with reference to the accompanying drawings:

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a schematic structural diagram of the water collection tank of the utility model;

[0016] Figure 3 is a sectional view of the utility model;

[0017] Among them, the reference numerals are as follows:

[0018] Impermeable layer 1, support plate 2, through hole 3, water collection tank 4, drain pipe 5, connection channel 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the utility model with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] Example

[0023] like Figures 1 - 3 As shown, a sub-membrane drainage device suitable for geomembrane anti-seepage includes an anti-seepage layer 1, a support assembly, a water collecting device and a plurality of drainage pipes 5. The top of the support assembly is fixedly connected to the anti-seepage layer 1, and the bottom of the support assembly is fixedly connected to the water collecting device. The support assembly includes a plurality of support plates 2, and the support plates 2 are arranged perpendicular to the ground. The plurality of support plates 2 are arranged in a staggered manner in a tic-tac-toe shape. The water collecting device is arranged underground, and the drainage pipes 5 are arranged below the water collecting device. The drainage pipes 5 are connected to the water collecting device through a plurality of connecting channels 6.

[0024] It is worth mentioning that the anti-seepage layer 1 is set to ensure that the ground is not affected by water seepage, the anti-seepage layer 1 is supported by the set supporting assembly, and a certain accommodation space is provided for water. The water is collected by the set water collecting device and the water flows into the drain pipe 5, and the water is discharged into the external ditch through the set drain pipe 5. The connecting channel 6 connects the water collecting device with the drain pipe 5, and the water in the water collecting device is led to the drain pipe 5 for discharge.

[0025] Specifically, the support plate 2 is arranged between the water collection device and the anti-seepage layer 1. The height of the support plate 2 itself provides a space between the water collection device and the anti-seepage layer. When the accumulated water is too much and the water surface exceeds the water collection device, the accumulated water overflows the water collection device and is contained in the space provided by the support plate 2, without affecting the anti-seepage layer 1 at the top.

[0026] In some feasible embodiments, a number of through holes 3 are formed in the support plate 2, through which the accumulated water can pass. When the accumulated water is too much, it can flow through the through holes 3, avoiding the accumulation of water in the squares formed by the intersection of the support plates 2 and preventing the liquid level from rising continuously and affecting the anti-seepage layer. The through holes can evenly distribute the water volume in each square and accelerate the drainage speed.

[0027] In some feasible embodiments, the water collection device includes a number of water collection tanks 4, and the water collection tanks 4 are arranged in a grid pattern.

[0028] In some feasible embodiments, the bottom of the support plate 2 is fixedly arranged in the middle of two adjacent water collection tanks 4, avoiding the support plate 2 being arranged in the water collection tank 4 and blocking the connection channel 6.

[0029] During use, the accumulated water enters the device and is collected in the water collection tank 4. The accumulated water collected in the water collection tank 4 enters the drain pipe 5 through the connection channel 6 and is discharged into the external ditch.

[0030] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can clearly understand how to implement the technical solutions disclosed here based on the above description. The scope of the present disclosure is defined by the appended claims.

Claims

1. A sub-membrane drainage device suitable for geomembrane anti-seepage, comprising an anti-seepage layer (1), characterized in that: It also comprises a support assembly, a water collection device and a plurality of drainage pipes (5), wherein the top of the support assembly is fixedly connected to the anti-seepage layer (1), and the bottom of the support assembly is fixedly connected to the water collection device. The support assembly comprises a plurality of support plates (2), wherein the support plates (2) are arranged perpendicular to the ground, and the plurality of support plates (2) are arranged in a staggered manner in a tic-tac-toe pattern. The water collection device is arranged underground, and the drainage pipe (5) is arranged below the water collection device. The drainage pipe (5) is connected to the water collection device through a plurality of connecting channels (6).

2. The sub-membrane drainage device suitable for geomembrane anti-seepage according to claim 1, characterized in that: The support plate (2) is provided with a plurality of through holes (3).

3. The sub-membrane drainage device suitable for geomembrane anti-seepage according to claim 1, characterized in that: The water collecting device comprises a plurality of water collecting grooves (4), and the water collecting grooves (4) are arranged in a tic-tac-toe shape.

4. The sub-membrane drainage device suitable for geomembrane anti-seepage according to claim 3, characterized in that: The bottom of the support plate (2) is fixedly arranged between two adjacent water collecting tanks (4).

Images