Puncture-resistant composite geomembrane

Abstract

The utility model relates to the technical field of geomembranes, in particular to a puncture-resistant composite geomembrane which comprises a geomembrane layer, a buffer layer and needle-punched geotechnical cloth, the buffer layer is arranged between the geomembrane layer and the needle-punched geotechnical cloth, a protective layer is arranged on one side, away from the buffer layer, of the needle-punched geotechnical cloth, and the needle-punched geotechnical cloth is arranged on the protective layer. An impermeable layer is arranged on the side, away from the buffer layer, of the geomembrane layer, a reinforcing layer is arranged on the side, away from the geomembrane layer, of the impermeable layer, and a sunscreen layer is arranged on the side, away from the impermeable layer, of the reinforcing layer; tear-resistant net layers are fixedly connected to the two sides of the reinforcing layer, a paraffin layer is arranged on the side, close to the buffer layer, of the geomembrane layer, a protein gelatin layer and a corrosion-resistant layer are sequentially arranged on the side, close to the impermeable layer, of the geomembrane layer, and the sunscreen layer is a polyvinyl chloride film layer. The anti-tearing net layers are fixedly connected to the two sides of the reinforcing layer, the anti-tearing net layers have the good tensile property, then the tensile property of the composite geomembrane can be improved, the buffer layer is the EVA foam layer, and the tensile capacity of the composite geomembrane is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geomembranes, in particular to a puncture-resistant composite geomembrane. Background Art

[0002] Geomembrane is a geotechnical anti-seepage material that uses plastic film as the anti-seepage base material and is composited with non-woven fabric. It is a waterproof building material that is anti-seepage and moisture-proof. Its anti-seepage performance mainly depends on the anti-seepage performance of the plastic film.

[0003] In order to facilitate its production, the upper and lower surfaces of traditional geomembranes are mostly smooth or have some simple irregular anti-slip textures. Geomembranes are blow-molded with polyethylene resins to which a certain proportion of carbon black masterbatch, anti-aging agents, antioxidants, ultraviolet absorbers, stabilizers, etc. are added. They are often used in the construction of warehouses, dams, cofferdams, canals, artificial lakes, reservoirs and other water conservancy projects. Existing geomembranes have poor tensile strength and are easily torn, which will shorten the service life of geomembranes.

[0004] To this end, we propose a puncture-resistant composite geomembrane. Utility Model Content

[0005] The main purpose of the utility model is to provide a puncture-resistant composite geomembrane, wherein tear-resistant mesh layers are fixedly connected on both sides of the reinforcement layer, the tear-resistant mesh layers have excellent tensile properties, and thus can improve the tensile resistance of the composite geomembrane, and the buffer layer is an EVA foam layer, which has anti-aging and shock-absorbing and buffering effects, further improving the tensile resistance of the composite geomembrane, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A puncture-resistant composite geomembrane, comprising a geomembrane layer, a buffer layer and a needle-punched geotextile, wherein a buffer layer is provided between the geomembrane layer and the needle-punched geotextile, a protective layer is provided on the side of the needle-punched geotextile away from the buffer layer, an anti-seepage layer is provided on the side of the geomembrane layer away from the buffer layer, a reinforcing layer is provided on the side of the anti-seepage layer away from the geomembrane layer, and a sunscreen layer is provided on the side of the reinforcing layer away from the anti-seepage layer;

[0008] The two sides of the reinforcement layer are fixedly connected with tear-resistant mesh layers.

[0009] By adopting the above technical scheme, tear-resistant mesh layers are fixedly connected on both sides of the reinforcement layer. The tear-resistant mesh layers have excellent tensile properties, which can improve the tensile resistance of the composite geomembrane. The anti-seepage layer is a high-density polyethylene resin layer, which makes the composite geomembrane waterproof and anti-seepage.

[0010] Specifically, the sun protection layer, the reinforcement layer, the anti-seepage layer, the geomembrane layer, the buffer layer, the needle-punched geotextile and the protective layer are arranged in sequence from top to bottom.

[0011] Specifically, a paraffin layer is provided on the side of the geomembrane layer close to the buffer layer.

[0012] Specifically, a protein gelatin layer and a corrosion-resistant layer are sequentially arranged on the side of the geomembrane layer close to the anti-seepage layer.

[0013] Specifically, the sun protection layer is a polyvinyl chloride film layer.

[0014] Specifically, the reinforcement layer is an aluminum silicate fiber membrane layer.

[0015] Beneficial effects of the utility model:

[0016] (1) The puncture-resistant composite geomembrane described in the utility model has tear-resistant mesh layers fixedly connected on both sides of the reinforcement layer. The tear-resistant mesh layers have excellent tensile properties, thereby improving the tensile resistance of the composite geomembrane. The anti-seepage layer is a high-density polyethylene resin layer, so that the composite geomembrane has waterproof and anti-seepage functions.

[0017] (2) The puncture-resistant composite geomembrane described in the utility model can extend the service life of the composite geomembrane through the protein gelatin layer, and can be completely degraded and pollution-free. The design of the paraffin layer enhances the anti-seepage ability of the composite geomembrane. The sunscreen layer is a polyvinyl chloride film layer, which has excellent UV resistance and is used to prevent the composite geomembrane from cracking due to sunlight. The buffer layer is an EVA foam layer, which has anti-aging and shock-absorbing effects, further improving the tensile strength of the composite geomembrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0021] In the figure: 1. sun protection layer; 2. reinforcement layer; 3. anti-seepage layer; 4. geomembrane layer; 5. buffer layer; 6. needle-punched geotextile; 7. protective layer; 201. tear-resistant mesh layer; 401. protein gelatin layer; 402. corrosion-resistant layer; 403. paraffin layer. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] As an embodiment of the present utility model, Figure 1-Figure 2 As shown, the puncture-resistant composite geomembrane described in the utility model comprises a geomembrane layer 4, a buffer layer 5 and a needle-punched geotextile 6, a buffer layer 5 is provided between the geomembrane layer 4 and the needle-punched geotextile 6, a protective layer 7 is provided on the side of the needle-punched geotextile 6 away from the buffer layer 5, an anti-seepage layer 3 is provided on the side of the geomembrane layer 4 away from the buffer layer 5, a reinforcing layer 2 is provided on the side of the anti-seepage layer 3 away from the geomembrane layer 4, and a sunscreen layer 1 is provided on the side of the reinforcing layer 2 away from the anti-seepage layer 3;

[0024] The two sides of the reinforcement layer 2 are fixedly connected with tear-resistant mesh layers 201, and the tear-resistant mesh layers 201 have good tensile properties, thereby improving the tensile resistance of the composite geomembrane;

[0025] When in use, a paraffin layer 403 is provided on the side of the geomembrane layer 4 close to the buffer layer 5, and a protein gelatin layer 401 and a corrosion-resistant layer 402 are provided in sequence on the side of the geomembrane layer 4 close to the anti-seepage layer 3; the protein gelatin layer 401 can extend the service life of the composite geomembrane, and at the same time it can be completely degraded and pollution-free. The design of the paraffin layer 403 enhances the anti-seepage ability of the composite geomembrane. The anti-seepage layer 3 is a high-density polyethylene resin layer, which is used for waterproofing and leak-proofing, so that the composite geomembrane has the functions of waterproofing and anti-seepage.

[0026] The utility model also includes: the sun protection layer 1, the reinforcement layer 2, the anti-seepage layer 3, the geomembrane layer 4, the buffer layer 5, the needle-punched geotextile 6 and the protective layer 7 are arranged in sequence from top to bottom.

[0027] The utility model also includes that a paraffin layer 403 is provided on one side of the geomembrane layer 4 close to the buffer layer 5 .

[0028] The utility model also includes that the geomembrane layer 4 is provided with a protein gelatin layer 401 and a corrosion-resistant layer 402 in sequence on one side close to the anti-seepage layer 3; the protein gelatin layer 401 can extend the service life of the composite geomembrane, and at the same time can be completely degraded and pollution-free; the design of the paraffin layer 403 enhances the anti-seepage ability of the composite geomembrane.

[0029] The utility model also includes that the sunscreen layer 1 is a polyvinyl chloride film layer;

[0030] The buffer layer 5 is an EVA foam layer, which has anti-aging and shock-absorbing functions, further improving the tensile strength of the composite geomembrane; the protective layer 7 is an ethylene vinyl acetate copolymer polymer waterproof membrane.

[0031] The utility model also includes that the reinforcement layer 2 is an aluminum silicate fiber membrane layer.

[0032] When the utility model is in use, the sunscreen layer 1, the reinforcement layer 2, the anti-seepage layer 3, the geomembrane layer 4, the buffer layer 5, the needle-punched geotextile 6 and the protective layer 7 are arranged in sequence from top to bottom, the protective layer 7 is provided on the side of the needle-punched geotextile 6 away from the buffer layer 5, the buffer layer 5 is provided between the geomembrane layer 4 and the needle-punched geotextile 6, the anti-seepage layer 3 is provided on the side of the geomembrane layer 4 away from the buffer layer 5, the reinforcement layer 2 is provided on the side of the anti-seepage layer 3 away from the geomembrane layer 4, and the sunscreen layer 1 is provided on the side of the reinforcement layer 2 away from the anti-seepage layer 3;

[0033] A paraffin layer 403 is provided on the side of the geomembrane layer 4 close to the buffer layer 5, and a protein gelatin layer 401 and a corrosion-resistant layer 402 are provided in sequence on the side of the geomembrane layer 4 close to the anti-seepage layer 3; the protein gelatin layer 401 can extend the service life of the composite geomembrane, and it can be completely degraded and pollution-free. The design of the paraffin layer 403 enhances the anti-seepage ability of the composite geomembrane.

[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A puncture-resistant composite geomembrane, characterized in that: It comprises a geomembrane layer (4), a buffer layer (5) and a needle-punched geotextile (6), wherein a buffer layer (5) is provided between the geomembrane layer (4) and the needle-punched geotextile (6), a protective layer (7) is provided on the side of the needle-punched geotextile (6) away from the buffer layer (5), an anti-seepage layer (3) is provided on the side of the geomembrane layer (4) away from the buffer layer (5), a reinforcing layer (2) is provided on the side of the anti-seepage layer (3) away from the geomembrane layer (4), and a sunscreen layer (1) is provided on the side of the reinforcing layer (2) away from the anti-seepage layer (3); The two sides of the reinforcement layer (2) are fixedly connected with tear-resistant mesh layers (201).

2. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The sun protection layer (1), the reinforcement layer (2), the anti-seepage layer (3), the geomembrane layer (4), the buffer layer (5), the needle-punched geotextile (6) and the protective layer (7) are arranged in sequence from top to bottom.

3. The puncture-resistant composite geomembrane according to claim 1, characterized in that: A paraffin layer (403) is provided on the side of the geomembrane layer (4) close to the buffer layer (5).

4. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The side of the geomembrane layer (4) close to the anti-seepage layer (3) is provided with a protein gelatin layer (401) and a corrosion-resistant layer (402) in sequence.

5. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The sun protection layer (1) is a polyvinyl chloride film layer.

6. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The reinforcement layer (2) is an aluminum silicate fiber membrane layer.

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