Anti-seepage geomembrane device for dam body

Abstract

An anti-seepage geomembrane device for a dam body comprises an anti-seepage geomembrane body provided with a first geotechnical cloth piece (2) and a civil grid (1) arranged on the first geotechnical cloth piece (2), a composite geomembrane is formed through the anti-seepage geomembrane body, reinforced grid supporting of the composite geomembrane is achieved through the civil grid (1), and therefore the anti-seepage geomembrane device can be used for a dam body. According to the laminated geomembrane supporting device, the flexible net body supporting bodies which can be distributed in a coiled mode are additionally arranged, the technical problem that the laminated geomembrane can only be supported through geotechnical cloth is solved, and therefore the risk that the laminated geomembrane is damaged is reduced.

Description

Technical Field

[0001] The utility model relates to an anti-seepage geomembrane device, in particular to an anti-seepage geomembrane device used for a dam body. Background Art

[0002] Composite geomembrane is widely used in channel anti-seepage projects. The large-scale application and effectiveness of geosynthetics in civil engineering, especially in flood control and emergency projects, have attracted great attention from engineering and technical personnel. Therefore, anti-seepage geomembrane device is an important geotechnical material. There is no anti-seepage geomembrane device for embankment body. In the existing anti-seepage geomembrane device, the geomembrane and geotextile are two cloths and one film, which are heated by far-infrared in an oven and then pressed by guide rollers. Therefore, the geomembrane can only be supported by the geotextile. It is suitable for leveling the base surface with sand or clay with smaller material diameter, and then laying the two ends buried in the soil in a corrugated shape. Finally, a transition layer of about 10 cm is laid on the two cloths and one film with fine sand or clay. Since the damage to the geomembrane caused by the particle size of the backfill soil can only be resisted by the geotextile, the risk of damage to the geomembrane is increased.

[0003] The utility model has added the technical feature of a flexible mesh support body that can be rolled and distributed, and has carried out effective exploration and research on the technical problem that the geomembrane can only be supported by geotextile.

[0004] The statements here only provide background technology related to the utility model and do not necessarily constitute prior art. The technical solution of the application of the present invention is made based on the technical briefing document provided by the applicant on June 6, 2024, which solves actual technical problems in the work process, and the existing technical problems, technical features and technical effects in the similar patent literature and background technology obtained through retrieval. Summary of the invention

[0005] The object of the utility model is an anti-seepage geomembrane device used for a dam body.

[0006] In order to overcome the above technical shortcomings, the purpose of the utility model is to provide an anti-seepage geomembrane device for a dam body, thereby reducing the risk of damage to the geomembrane.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: comprising an anti-seepage geomembrane body having a first geotextile sheet, and a civil grid arranged on the first geotextile sheet.

[0008] Due to the design of the anti-seepage geomembrane body and the civil grid, the composite geomembrane is formed through the anti-seepage geomembrane body, and the composite geomembrane is reinforced with the civil grid, and the flexible mesh support body that can be rolled up is added, which solves the technical problem that the geomembrane can only be supported by geotextile, thereby reducing the risk of damage to the geomembrane.

[0009] The utility model is designed to connect the anti-seepage geomembrane body and the earthwork grid mutually in a manner of adding a flexible mesh support body which can be distributed in a roll.

[0010] The utility model is designed to connect the civil grid with the anti-seepage geomembrane body in a way of strengthening the grid support.

[0011] The utility model is designed that the anti-seepage geomembrane body is arranged to further include a second geotextile sheet and a geomembrane sheet.

[0012] The technical effects of the above four technical solutions are: highlighting the technical feature of adding a flexible mesh support body that can be rolled and distributed, and introducing the application in the technical field of anti-seepage geomembrane devices for dam bodies.

[0013] The utility model is designed to further include a first accessory device, and the first accessory device is arranged between the anti-seepage geomembrane body and the civil grid, and the first accessory device is arranged to include a middle sewing line and a bonding foot body.

[0014] The utility model is designed to further include a second accessory device, and the second accessory device is arranged on the anti-seepage geomembrane body, and the second accessory device is arranged as an edge sewing line.

[0015] The technical effects of the above two technical solutions are: realizing the integrated installation of other components and expanding the technical problem of the utility model.

[0016] The utility model is designed that a geomembrane sheet is arranged between the earth grid and the second geotextile sheet, an adhesive foot body is arranged between the geomembrane sheet and the earth grid, a first geotextile sheet is arranged on the earth grid, a middle sewing line is arranged between the first geotextile sheet and the earth grid, and an edge sewing line is arranged between the first geotextile sheet and the second geotextile sheet and the earth grid.

[0017] The technical effect of the above technical scheme is that the basic technical scheme of the utility model is formed by the civil grid, the first geotextile sheet, the second geotextile sheet, the geomembrane sheet, the middle sewing line, the bonding foot body and the edge sewing line, thereby solving the technical problem of the utility model.

[0018] The utility model is designed that the civil grille is set as a glass fiber civil grille and the outer end surface portion of the civil grille is set to be attached and connected to the first geotextile sheet, the inner end surface portion of the civil grille is set to be attached and connected to the geomembrane sheet and the middle portion of the civil grille is set to be accommodatingly connected to the middle sewing line, the edge portion of the civil grille is set to be accommodatingly connected to the edge sewing line and the lattice body of the civil grille is set to be accommodatingly connected to the adhesive foot body.

[0019] The technical effect of the above technical solution is that the mesh with increased strength is used as support for the geomembrane.

[0020] The utility model is designed that the first geotextile sheet is respectively arranged as polyester staple needle-punched geotextile, polyester filament spunbond geotextile or flat-filament plastic woven fabric, and the inner end surface portion of the first geotextile sheet is arranged to be connected with the civil grid, the middle portion of the first geotextile sheet is arranged to be connected with the middle sewing thread in an accommodating manner, and the edge portion of the first geotextile sheet is arranged to be connected with the edge sewing thread in an accommodating manner.

[0021] The utility model is designed that the second geotextile sheet is respectively arranged as polyester staple needle-punched geotextile, polyester filament spunbond geotextile or flat-filament plastic woven fabric, and the inner end surface portion of the second geotextile sheet is arranged to be hot-melt connected with the geomembrane sheet, and the edge portion of the second geotextile sheet is arranged to be connected with the edge sewing thread in an accommodating manner.

[0022] The utility model is designed that the geomembrane sheet is arranged as a laminated geomembrane and the outer end face portion of the geomembrane sheet is arranged to be hot-melt connected with the second geotextile sheet, the inner end face portion of the geomembrane sheet is arranged to be contact-connected with the earth grid and the inner end face portion of the geomembrane sheet is arranged to be connected with the adhesive foot body.

[0023] The technical effects of the above three technical solutions are: realizing the setting of a three-layer composite geomembrane.

[0024] The utility model is designed that the middle sewing thread is arranged as a textile linear body and the middle sewing thread is respectively arranged to be sewn-connected with the geogrid and the first geotextile sheet.

[0025] The utility model is designed that the bonding foot body is arranged as a plastic welding block, one end of the bonding foot body is arranged to be embeddedly connected with the civil grid, and the other end of the bonding foot body is arranged to be bondedly connected with the geomembrane sheet.

[0026] The technical effect of the above two technical solutions is that the civil grid and the geomembrane are directly connected and supported.

[0027] The utility model is designed that the edge sewing lines are arranged as textile linear bodies and the edge sewing lines are respectively arranged to be sewn-connected with the second geotextile sheet and the first geotextile sheet.

[0028] The technical effect of the above technical solution is that the second geotextile sheet and the first geotextile sheet are connected peripherally.

[0029] The utility model is designed that the first geotextile sheet, the second geotextile sheet and the geomembrane sheet, the civil grid and the middle sewing line are arranged to be distributed in a manner of increasing mesh sheets, and the first geotextile sheet, the second geotextile sheet, the geomembrane sheet, the civil grid and the middle sewing line and the bonding foot body are arranged to be distributed in a manner of point bonding, and the first geotextile sheet, the second geotextile sheet, the geomembrane sheet, the civil grid and the middle sewing line and the edge sewing line are arranged to be distributed in a manner of edge connection.

[0030] The utility model is designed that the center line of the earth grid, the center line of the first geotextile sheet, the center line of the second geotextile sheet and the center line of the geomembrane sheet are arranged on the same straight line, and a plurality of bonding feet are arranged between the geomembrane sheet and the earth grid.

[0031] The utility model is designed that the bonding foot body is arranged to include a disk part and a block part, and the inner end surface part of the block part is arranged to be connected with the middle part of the inner end surface part of the disk part, the outer end surface part of the disk part is arranged to be bonded to the geomembrane sheet and the block part is arranged to be bonded to the civil grid, the disk part is arranged to be a C-shaped plastic sheet body and the block part is arranged to be a rectangular plastic seat body.

[0032] The technical effect of the above technical solution is that an intermediate adhesive connection is achieved between the civil grid and the geomembrane.

[0033] In this technical solution, the geogrid is a basic component and also a necessary technical feature of the utility model. The first geotextile sheet, the second geotextile sheet, the geomembrane sheet, the middle sewing thread, the adhesive foot and the edge sewing thread are functional components and are features for achieving other technical effects of the utility model. The design of these technical features of the disc part and the block part is a technical feature that complies with the Patent Law and its implementing rules.

[0034] In the technical solution, the addition of a flexible mesh support body that can be distributed in a roll is achieved by a civil grid.

[0035] In the present technical solution, the addition of an anti-seepage geomembrane body and a civil grid that can be rolled and distributed as a flexible mesh support is an important technical feature. In the technical field of anti-seepage geomembrane devices for embankments, it has novelty, creativity and practicality. The terms in the present technical solution can be explained and understood using patent documents in this technical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of one of the first embodiments of the utility model.

[0038] Figure 2 This is a schematic diagram of the second embodiment of the first embodiment of the present utility model.

[0039] Civil grid-1, first geotextile sheet-2, second geotextile sheet-3, geomembrane sheet-4, middle sewing line-5, bonding foot body-7, edge sewing line-8, disc part-71, block part-72. DETAILED DESCRIPTION

[0040] According to the Examination Guidelines, terms such as “having”, “including” and “comprising” used in the present invention should be understood as not precluding the existence or addition of one or more other elements or combinations thereof.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following embodiments are commercially available. If the processing conditions are not clearly stated, please refer to the purchased product manual or proceed according to conventional methods in the field.

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Figure 1 This is one of the first embodiments of the utility model. This embodiment is specifically described in conjunction with the accompanying drawings. It includes a geogrid 1, a first geotextile sheet 2, a second geotextile sheet 3, a geomembrane sheet 4, an intermediate sewing thread 5, an adhesive foot body 7 and an edge sewing thread 8. The geomembrane sheet 4 is arranged between the geogrid 1 and the second geotextile sheet 3, the adhesive foot body 7 is arranged between the geomembrane sheet 4 and the geogrid 1, and the first geotextile sheet 2 is arranged on the geogrid 1, the intermediate sewing thread 5 is arranged between the first geotextile sheet 2 and the geogrid 1, and the edge sewing thread 8 is arranged between the first geotextile sheet 2 and the second geotextile sheet 3 and the geogrid 1.

[0046] In this embodiment, the civil grid 1 is configured as a glass fiber civil grid and the outer end surface portion of the civil grid 1 is configured to be attached and connected to the first geotextile sheet 2, the inner end surface portion of the civil grid 1 is configured to be attached and connected to the geomembrane sheet 4 and the middle portion of the civil grid 1 is configured to be accommodated and connected to the middle sewing line 5, the edge portion of the civil grid 1 is configured to be accommodated and connected to the edge sewing line 8 and the lattice body of the civil grid 1 is configured to be accommodated and connected to the adhesive foot body 7.

[0047] Through the civil engineering grid 1, supporting connection points for the first geotextile sheet 2, the geomembrane sheet 4, the middle sewing thread 5, the adhesive foot 7 and the edge sewing thread 8 are formed. The civil engineering grid 1 realizes connection with the first geotextile sheet 2, connection with the geomembrane sheet 4, connection with the middle sewing thread 5, connection with the adhesive foot 7 and connection with the edge sewing thread 8. Its technical purpose is to serve as a supporting carrier for the first geotextile sheet 2, the geomembrane sheet 4, the middle sewing thread 5, the adhesive foot 7 and the edge sewing thread 8.

[0048] In this embodiment, the first geotextile sheet 2 is respectively configured as polyester staple needle-punched geotextile, polyester filament spunbond geotextile or flat fiber plastic woven fabric, and the inner end surface portion of the first geotextile sheet 2 is configured to be connected to the civil grid 1, the middle portion of the first geotextile sheet 2 is configured to be accommodatingly connected to the middle sewing thread 5, and the edge portion of the first geotextile sheet 2 is configured to be accommodatingly connected to the edge sewing thread 8.

[0049] Through the first geotextile sheet 2, supporting connection points for the civil grid 1, the middle sewing line 5 and the edge sewing line 8 are formed. The first geotextile sheet 2 is connected to the civil grid 1, the middle sewing line 5 and the edge sewing line 8. Its technical purpose is to be used as a component for attaching the civil grid 1.

[0050] In the present embodiment, the middle sewing thread 5 is provided as a textile linear body and the middle sewing thread 5 is provided to be sewn-connected with the geogrid 1 and the first geotextile sheet 2 respectively.

[0051] A supporting connection point between the civil grid 1 and the first geotextile sheet 2 is formed through the middle sewing line 5. The connection with the civil grid 1 and the first geotextile sheet 2 is realized through the middle sewing line 5. Its technical purpose is to serve as a component for connecting the first geotextile sheet 2 and the civil grid 1.

[0052] In this embodiment, the second geotextile sheet 3 is respectively configured to be polyester staple needle-punched geotextile, polyester filament spunbond geotextile or flat fiber plastic woven fabric, and the inner end surface portion of the second geotextile sheet 3 is configured to be hot-melt connected to the geomembrane sheet 4, and the edge portion of the second geotextile sheet 3 is configured to be accommodatingly connected to the edge sewing thread 8.

[0053] Through the second geotextile sheet 3, a supporting connection point for the geomembrane sheet 4 and the edge sewing line 8 is formed. The second geotextile sheet 3 is connected to the geomembrane sheet 4 and the edge sewing line 8. Its technical purpose is to serve as a supporting carrier for the geomembrane sheet 4.

[0054] In this embodiment, the geomembrane sheet 4 is configured as a laminated geomembrane and the outer end surface of the geomembrane sheet 4 is configured to be hot-melt connected to the second geotextile sheet 3, the inner end surface of the geomembrane sheet 4 is configured to be contact-connected to the civil grid 1 and the inner end surface of the geomembrane sheet 4 is configured to be connected to the adhesive foot 7.

[0055] The geomembrane sheet 4 forms supporting connection points for the civil grid 1, the second geotextile sheet 3 and the adhesive foot body 7. The geomembrane sheet 4 realizes connection with the civil grid 1, the second geotextile sheet 3 and the adhesive foot body 7. Its technical purpose is to be used as a component of the intermediate layer of the anti-seepage geomembrane device.

[0056] In this embodiment, the bonding foot body 7 is configured as a plastic welding block and one end of the bonding foot body 7 is configured to be embeddedly connected to the civil grid 1, and the other end of the bonding foot body 7 is configured to be bonded to the geomembrane 4.

[0057] Through the adhesive foot body 7, a supporting connection point for the civil grid 1 and the geomembrane 4 is formed. The adhesive foot body 7 realizes the connection with the civil grid 1 and the connection with the geomembrane 4. Its technical purpose is to serve as a component for connecting the geomembrane 4 and the civil grid 1.

[0058] In the present embodiment, the edge sewing thread 8 is provided as a textile linear body and the edge sewing thread 8 is provided to be sewn and connected to the second geotextile sheet 3 and the first geotextile sheet 2 respectively.

[0059] The edge sewing line 8 forms a supporting connection point for the first geotextile sheet 2 and the second geotextile sheet 3. The edge sewing line 8 realizes the connection with the first geotextile sheet 2 and the connection with the second geotextile sheet 3. Its technical purpose is to serve as a component for connecting the first geotextile sheet 2 and the second geotextile sheet 3.

[0060] In this embodiment, the first geotextile sheet 2, the second geotextile sheet 3 and the geomembrane sheet 4, the civil grid 1 and the middle sewing line 5 are arranged to be distributed in a manner of increasing mesh sheets, and the first geotextile sheet 2, the second geotextile sheet 3, the geomembrane sheet 4, the civil grid 1 and the middle sewing line 5 and the bonding foot body 7 are arranged to be distributed in a point bonding manner, the first geotextile sheet 2, the second geotextile sheet 3, the geomembrane sheet 4, the civil grid 1 and the middle sewing line 5 and the edge sewing line 8 are arranged to be distributed in an edge connection manner, the center line of the civil grid 1, the center line of the first geotextile sheet 2, the center line of the second geotextile sheet 3 and the center line of the geomembrane sheet 4 are arranged on the same straight line, and multiple bonding feet 7 are arranged between the geomembrane sheet 4 and the civil grid 1.

[0061] The method of using this embodiment is as follows: unwind the geomembrane sheet 4, heat the two sides of the geomembrane sheet 4 in an oven with far infrared respectively, fit the geomembrane sheet 4 after the heat treatment with the second geotextile sheet 3 through a guide roller, press the geomembrane sheet 4 after the heat treatment with the second geotextile sheet 3 together by the guide roller to obtain an anti-seepage geomembrane intermediate sheet, cover the geogrid 1 on the first geotextile sheet 2, and pass the middle sewing thread 5 between the geogrid 1 and the first geotextile sheet 2 by sewing, so as to connect the geogrid 1 and the first geotextile sheet 2 together, and heat the adhesive foot 7 by far infrared in the oven. After external heating treatment, the adhesive foot body 7 in a hot-melt state is placed in the mesh of the civil grid 1, the anti-seepage geomembrane middle sheet is spread on the civil grid 1, the geomembrane sheet 4 is placed on the adhesive foot body 7 in a hot-melt state and the civil grid 1, the adhesive foot body 7 located between the geomembrane sheet 4 and the civil grid 1 is hammered, and after the adhesive foot body 7 cools down, the geomembrane sheet 4 is connected to the civil grid 1 together, and the edge sewing thread 8 is passed through the edge between the second geotextile sheet 3 and the first geotextile sheet 2 by sewing, so that the second geotextile sheet 3 and the first geotextile sheet 2 are connected together, thereby obtaining an anti-seepage geomembrane.

[0062] Figure 2 This is the second embodiment of the first embodiment of the utility model. This embodiment is specifically described in conjunction with the accompanying drawings. The bonding foot body 7 is configured to include a disk portion 71 and a block portion 72, and the inner end surface portion of the block portion 72 is configured to be connected to the middle portion of the inner end surface of the disk portion 71, the outer end surface portion of the disk portion 71 is configured to be bonded to the geomembrane sheet 4, and the block portion 72 is configured to be bonded to the civil grid 1, the disk portion 71 is configured to be a C-shaped plastic sheet body, and the block portion 72 is configured to be a rectangular plastic seat body.

[0063] The method of using this embodiment is as follows: put the disc 71 and the block 72 into the geoadhesive, put the block 72 with the geoadhesive into the mesh of the civil grid 1, spread the anti-seepage geomembrane middle sheet on the civil grid 1, put the geomembrane sheet 4 on the disc 71, and then beat the disc 71 and the block 72 located between the geomembrane sheet 4 and the civil grid 1.

[0064] When verifying the utility model, the inventor abandoned the existing technical feature that the laminated geomembrane can only be supported by geotextile, and first proposed the technical feature of adding a flexible mesh support body that can be rolled and distributed, and obtained the first unexpected technical effect: the geomembrane sheet 4 is wrapped and supported by the civil grid 1, the first geotextile sheet 2 and the second geotextile sheet 3, which improves the elongation performance of the geomembrane sheet 4 and increases the anti-seepage performance of the dam body, and obtains the second unexpected technical effect: the support strength of the particle size of the backfill is increased, and the damage to the geomembrane sheet 4 is reduced, and the third unexpected technical effect is obtained: the geotextile sheet 2 and the second geotextile sheet 3 are wrapped and supported by the civil grid 1, the first geotextile sheet 2 and the second geotextile sheet 3 The rough surface of the cloth piece 3 increases the friction force, improves the stability of the placement position of the geomembrane sheet 4, and obtains the fourth unexpected technical effect: the increased support strength setting of the civil grid 1 is realized, and the support for the dam body is increased. The fifth unexpected technical effect is obtained: the bag body setting composed of the edge sewing thread 8 is realized to prevent the first geotextile sheet 2 and the second geotextile sheet 3 from being misaligned. The sixth unexpected technical effect is obtained: the intermediate connecting body setting composed of the middle sewing thread 5, the adhesive foot body 7 and the edge sewing thread 8 is realized to prevent slippage between the civil grid 1, the first geotextile sheet 2, the second geotextile sheet 3 and the geomembrane sheet 4.

[0065] In the second embodiment of the utility model, the anti-seepage geomembrane body and the civil grid 1 are connected to each other by adding a flexible mesh support body that can be rolled and distributed.

[0066] In this embodiment, the civil grid 1 is connected to the anti-seepage geomembrane body in a manner of strengthening the grid support.

[0067] In this embodiment, the anti-seepage geomembrane body is configured to further include a second geotextile sheet 3 and a geomembrane sheet 4 .

[0068] In this embodiment, a first accessory device is also included and is arranged between the anti-seepage geomembrane body and the civil grid 1 . The first accessory device is arranged to include a middle sewing thread 5 and an adhesive foot body 7 .

[0069] In this embodiment, a second accessory device is further included and is arranged on the anti-seepage geomembrane body. The second accessory device is arranged as an edge sewing line 8 .

[0070] The second embodiment of the present utility model is based on the first embodiment.

[0071] The utility model has the following characteristics:

[0072] 1. Due to the design of the anti-seepage geomembrane body and the civil grid 1, the composite geomembrane is formed through the anti-seepage geomembrane body, and the composite geomembrane is reinforced with the civil grid 1, and the flexible mesh support body that can be rolled and distributed is added, which solves the technical problem that the geomembrane can only be supported by geotextile, thereby reducing the risk of damage to the geomembrane.

[0073] 2. Due to the design of the first geotextile sheet 2, the second geotextile sheet 3 and the geomembrane sheet 4, a composite geomembrane of two fabrics and one membrane is achieved.

[0074] 3. Due to the design of the middle sewing line 5 and the bonding foot body 7, the civil engineering grid 1 can be placed internally.

[0075] 4. Due to the design of the edge sewing line 8, the first geotextile sheet 2 and the second geotextile sheet 3 are connected.

[0076] 5. Since the design limits the numerical range of the structural shape, the numerical range is the technical feature in the technical solution of the utility model, and is not a technical feature calculated by formula or obtained through a limited number of tests. Tests have shown that the technical features of this numerical range have achieved good technical effects.

[0077] 6. Due to the design of the technical features of the utility model, the effects of the individual and combined technical features have been shown through experiments to have various performance indicators of the utility model that are at least 1.7 times the existing performance indicators, and the evaluation shows that the utility model has a good market value.

[0078] There are other technical features for connecting the anti-seepage geomembrane body and the civil grid 1 with the addition of a rollable flexible mesh support body, which are all embodiments of the present utility model, and the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, Patent Implementation Rules and Examination Guidelines, all possible combinations of the technical features in the above-mentioned embodiments will no longer be described.

[0079] Therefore, in the technical field of anti-seepage geomembrane devices for dam bodies, all technical contents including an anti-seepage geomembrane body having a first geotextile sheet 2 and a civil grid 1 arranged on the first geotextile sheet 2 are within the protection scope of the present utility model.

Claims

1. An anti-seepage geomembrane device for a dam body, characterized by: The invention comprises an anti-seepage geomembrane body having a first geotextile sheet (2), and a geogrid (1) arranged on the first geotextile sheet (2). The anti-seepage geomembrane body is configured to further include a second geotextile sheet (3) and a geomembrane sheet (4). It also includes a first accessory device and the first accessory device is arranged between the anti-seepage geomembrane body and the earthwork grid (1), and the first accessory device is arranged to include a middle sewing thread (5) and an adhesive foot body (7). It also includes a second accessory device and the second accessory device is arranged on the anti-seepage geomembrane body, and the second accessory device is arranged as an edge sewing line (8). A geomembrane sheet (4) is arranged between the geogrid (1) and the second geotextile sheet (3), an adhesive foot (7) is arranged between the geomembrane sheet (4) and the geogrid (1), and a first geotextile sheet (2) is arranged on the geogrid (1), an intermediate sewing line (5) is arranged between the first geotextile sheet (2) and the geogrid (1), and an edge sewing line (8) is arranged between the first geotextile sheet (2) and the second geotextile sheet (3) and the geogrid (1).

2. The anti-seepage geomembrane device for dam body according to claim 1 is characterized in that: The anti-seepage geomembrane body and the earthwork grid (1) are connected to each other in a manner of adding a flexible mesh support body that can be distributed in a roll.

3. The anti-seepage geomembrane device for embankment body according to claim 2 is characterized in that: The civil grid (1) is connected to the anti-seepage geomembrane body in a manner of strengthening the grid support.

4. The anti-seepage geomembrane device for dam body according to claim 1, characterized in that: The civil grid (1) is configured as a glass fiber civil grid and the outer end surface portion of the civil grid (1) is configured to be attached to the first geotextile sheet (2), the inner end surface portion of the civil grid (1) is configured to be attached to the geomembrane sheet (4) and the middle portion of the civil grid (1) is configured to be accommodated with the middle sewing thread (5), the edge portion of the civil grid (1) is configured to be accommodated with the edge sewing thread (8) and the lattice body of the civil grid (1) is configured to be accommodated with the bonding foot body (7).

5. The anti-seepage geomembrane device for dam body according to claim 1, characterized in that: The first geotextile sheet (2) is respectively configured as a polyester staple needle-punched geotextile, a polyester filament spunbond geotextile or a flat-filament plastic woven fabric, and the inner end surface portion of the first geotextile sheet (2) is configured to be connected to the geogrid (1), the middle portion of the first geotextile sheet (2) is configured to be connected in a receiving manner with the middle sewing thread (5), and the edge portion of the first geotextile sheet (2) is configured to be connected in a receiving manner with the edge sewing thread (8).

6. The anti-seepage geomembrane device for embankment body according to claim 1, characterized in that: The second geotextile sheet (3) is respectively configured as a polyester staple needle-punched geotextile, a polyester filament spunbond geotextile or a flat-filament plastic woven fabric, and the inner end surface portion of the second geotextile sheet (3) is configured to be hot-melt-connected to the geomembrane sheet (4), and the edge portion of the second geotextile sheet (3) is configured to be accommodatingly connected to the edge sewing thread (8).

7. The anti-seepage geomembrane device for dam body according to claim 1, characterized in that: The geomembrane sheet (4) is configured as a laminated geomembrane and the outer end surface of the geomembrane sheet (4) is configured to be hot-melt connected to the second geotextile sheet (3), the inner end surface of the geomembrane sheet (4) is configured to be contact-connected to the civil grid (1) and the inner end surface of the geomembrane sheet (4) is configured to be connected to the adhesive foot (7).

8. The anti-seepage geomembrane device for dam body according to claim 1, characterized in that: The middle sewing thread (5) is arranged as a textile linear body and the middle sewing thread (5) is arranged to be sewn and connected to the geogrid (1) and the first geotextile sheet (2) respectively.

9. The anti-seepage geomembrane device for dam body according to claim 1, characterized in that: The bonding foot body (7) is configured as a plastic welding block and one end of the bonding foot body (7) is configured to be embeddedly connected to the geomembrane (1), and the other end of the bonding foot body (7) is configured to be bondedly connected to the geomembrane (4).

10. The anti-seepage geomembrane device for dam body according to claim 1, characterized in that: The edge sewing thread (8) is arranged as a textile linear body and the edge sewing thread (8) is arranged to be sewn and connected to the second geotextile sheet (3) and the first geotextile sheet (2) respectively.

11. The anti-seepage geomembrane device for embankment body according to any one of claims 1 to 10, characterized in that: The first geotextile sheet (2), the second geotextile sheet (3), the geomembrane sheet (4), the earth grid (1), and the middle sewing line (5) are arranged in a manner of increasing mesh sheets, and the first geotextile sheet (2), the second geotextile sheet (3), the geomembrane sheet (4), the earth grid (1), and the middle sewing line (5) are arranged in a manner of point bonding with the bonding foot (7), and the first geotextile sheet (2), the second geotextile sheet (3), the geomembrane sheet (4), the earth grid (1), the middle sewing line (5), and the edge sewing line (8) are arranged in a manner of edge connection.

12. The anti-seepage geomembrane device for embankment body according to any one of claims 1 to 10, characterized in that: The center line of the geogrid (1), the center line of the first geotextile sheet (2), the center line of the second geotextile sheet (3) and the center line of the geomembrane sheet (4) are arranged on the same straight line, and a plurality of bonding feet (7) are arranged between the geomembrane sheet (4) and the geogrid (1).

13. The anti-seepage geomembrane device for dam body according to claim 12, characterized in that: The bonding foot body (7) is configured to include a disk portion (71) and a block portion (72), and the inner end surface portion of the block portion (72) is configured to be connected to the middle portion of the inner end surface of the disk portion (71), the outer end surface portion of the disk portion (71) is configured to be bonded to the geomembrane sheet (4), and the block portion (72) is configured to be bonded to the civil grid (1), the disk portion (71) is configured to be a C-shaped plastic sheet body, and the block portion (72) is configured to be a rectangular plastic seat body.

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