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 base material layer, an elastic protective layer I is fixedly arranged on the back side of the geomembrane base material layer, an elastic protective layer II is fixedly arranged on the outer side of the geomembrane base material layer, a puncture-resistant layer I is fixedly arranged on the back side of the elastic protective layer I, and a puncture-resistant layer II is fixedly arranged on the outer side of the puncture-resistant layer II. The back side of the puncture-resistant layer I is fixedly provided with a flame-retardant layer, the flame-retardant layer is filled with a flame retardant, the back side of the flame-retardant layer is fixedly provided with a plurality of anti-skid raised lines at intervals, the outer side of the elastic protective layer II is fixedly provided with a puncture-resistant layer II, the outer side of the puncture-resistant layer II is fixedly provided with a wear-resistant layer, and the outer side of the wear-resistant layer is fixedly provided with a wear-resistant layer. According to the utility model, the overall puncture resistance of the composite geomembrane is improved, the situation that the composite geomembrane is easily punctured during construction and laying is effectively prevented, the normal use effect of the composite geomembrane is ensured, and the use reliability of the composite geomembrane is 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 made of plastic film as the anti-seepage base material and non-woven fabric. It is a waterproof building material that is anti-seepage and moisture-proof. Geomembrane is blow-molded by adding a certain proportion of carbon black masterbatch, anti-aging agent, antioxidant, UV absorber, stabilizer, etc. to polyethylene resin. It is often used in the construction of warehouses, dams, cofferdams, canals, artificial lakes, reservoirs and other water conservancy projects. During the use of existing composite geomembranes, due to their poor puncture resistance, the composite geomembrane is easily punctured during construction and laying, resulting in damage to the composite geomembrane and inability to use normally, affecting the reliability of the composite geomembrane. Therefore, we propose a puncture-resistant composite geomembrane to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a puncture-resistant composite geomembrane to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A puncture-resistant composite geomembrane comprises a geomembrane substrate layer, an elastic protective layer I is fixedly provided on the back side of the geomembrane substrate layer, an elastic protective layer II is fixedly provided on the outer side of the geomembrane substrate layer, a puncture-resistant layer I is fixedly provided on the back side of the elastic protective layer I, a flame-retardant layer is fixedly provided on the back side of the puncture-resistant layer I, the flame-retardant layer is filled with a flame retardant, a plurality of anti-slip convex strips are fixedly provided at intervals on the back side of the flame-retardant layer, a puncture-resistant layer II is fixedly provided on the outer side of the elastic protective layer II, and a wear-resistant layer is fixedly provided on the outer side of the puncture-resistant layer II.

[0006] Based on the above structure, by utilizing the elastic protective layer I and the elastic protective layer II to form a double elastic protective layer, if the back or outer side of the composite geomembrane is subjected to external force, a good buffering and protective effect can be produced, and the puncture-resistant layer I and the puncture-resistant layer II are utilized to form a comprehensive puncture-resistant layer, thereby improving the overall puncture resistance of the composite geomembrane.

[0007] Preferably, the elastic protective layer I and the elastic protective layer II are both elastic layer components made of polyurethane foam.

[0008] By means of such an arrangement, the purpose of making the elastic protective layer I and the elastic protective layer II have good elastic properties is achieved.

[0009] Preferably, the puncture-resistant layer I and the puncture-resistant layer II are both puncture-resistant layer components made of polyamide fiber.

[0010] By such arrangement, the purpose of making the puncture-resistant layer I and the puncture-resistant layer II have good puncture-resistant performance is achieved.

[0011] Preferably, the thickness of the puncture-resistant layer II is greater than the thickness of the wear-resistant layer.

[0012] Preferably, the thicknesses of the elastic protective layer I, the puncture-resistant layer I, the elastic protective layer II and the puncture-resistant layer II are all the same and are smaller than the thickness of the geomembrane substrate layer.

[0013] Preferably, the plurality of anti-skid convex strips are evenly spaced and distributed, and the thickness of the anti-skid convex strips is 1 mm-1.5 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model forms a double elastic protective layer by utilizing an elastic protective layer I and an elastic protective layer II. If the back side or the outer side of the composite geomembrane is subjected to external puncture pressure, a good buffering and protective effect can be produced. In addition, a comprehensive puncture-resistant layer is formed by utilizing the puncture-resistant layer I and the puncture-resistant layer II, thereby improving the overall puncture-resistant performance of the composite geomembrane, effectively preventing the composite geomembrane from being easily punctured during construction and laying, ensuring the normal use effect of the composite geomembrane, and improving the reliability of the composite geomembrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of a puncture-resistant composite geomembrane of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B.

[0019] In the figure: 1, geomembrane substrate layer; 2, elastic protective layer I; 201, puncture-resistant layer I; 3, elastic protective layer II; 301, puncture-resistant layer II; 4, flame retardant layer; 401, flame retardant; 5, anti-slip convex strips; 6, wear-resistant layer. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 3 As shown, a technical solution provided by the utility model:

[0022] A puncture-resistant composite geomembrane comprises a geomembrane substrate layer 1, an elastic protective layer I2 is fixedly arranged on the back side of the geomembrane substrate layer 1, and an elastic protective layer II3 is fixedly arranged on the outside of the geomembrane substrate layer 1. The elastic protective layer I2 and the elastic protective layer II3 form a double elastic protective layer. If the back side or the outside of the composite geomembrane is subjected to external puncture pressure, a good buffering and protective effect can be produced. A puncture-resistant layer I201 is fixedly arranged on the back side of the elastic protective layer I2, and the puncture-resistant layer I201 is fixedly arranged on the back side of the elastic protective layer I2. A flame retardant layer 4 is fixedly arranged on the back side, and the flame retardant layer 4 is filled with flame retardant 401, so that the composite geomembrane has good flame retardant and fireproof functions. A plurality of anti-slip convex strips 5 are fixedly arranged at intervals on the back side of the flame retardant layer 4. A puncture-resistant layer II301 is fixedly arranged on the outer side of the elastic protective layer II3. The puncture-resistant layer I201 and the puncture-resistant layer II301 form a comprehensive puncture-resistant layer, thereby improving the overall puncture resistance of the composite geomembrane. A wear-resistant layer 6 is fixedly arranged on the outer side of the puncture-resistant layer II301.

[0023] As a preferred implementation in this embodiment, Figure 1 As shown, the elastic protective layer I2 and the elastic protective layer II3 are both elastic layer components made of polyurethane foam, so that the elastic protective layer I2 and the elastic protective layer II3 have good elastic properties.

[0024] As a preferred implementation in this embodiment, Figure 1 As shown, the puncture-resistant layer I201 and the puncture-resistant layer II301 are both puncture-resistant layer components made of polyamide fiber, thereby achieving the purpose of making the puncture-resistant layer I201 and the puncture-resistant layer II301 have good puncture-resistant performance.

[0025] As a preferred implementation in this embodiment, Figure 3 As shown, the thickness of the puncture-resistant layer II301 is greater than the thickness of the wear-resistant layer 6.

[0026] As a preferred implementation in this embodiment, Figure 1As shown, the thicknesses of the elastic protective layer I2, the puncture-resistant layer I201, the elastic protective layer II3 and the puncture-resistant layer II301 are all the same and are all smaller than the thickness of the geomembrane substrate layer 1.

[0027] As a preferred implementation in this embodiment, Figure 1 As shown, a plurality of anti-skid convex strips 5 are evenly spaced and arranged, and the thickness of the anti-skid convex strips 5 is 1 mm-1.5 mm.

[0028] Working principle:

[0029] In the process of using the composite geomembrane, a double elastic protective layer is formed by utilizing the elastic protective layer I2 and the elastic protective layer II3. If the back or outer side of the composite geomembrane is subjected to external force, a good buffering and protective effect can be produced, and a comprehensive puncture-resistant layer is formed by utilizing the puncture-resistant layer I201 and the puncture-resistant layer II301, thereby improving the overall puncture resistance of the composite geomembrane, effectively preventing the composite geomembrane from being easily punctured during construction and laying, and ensuring the normal use effect of the composite geomembrane. The flame-retardant layer 4 is arranged on the back side of the puncture-resistant layer I201, and the flame-retardant layer 4 is filled with flame retardant 401, so that the composite geomembrane has good flame retardant and fireproof functions. A number of anti-slip convex strips 5 are evenly spaced and arranged on the back side of the flame retardant layer 4. The anti-slip convex strips 5 can enhance the anti-slip effect when the composite geomembrane contacts the ground.

[0030] The above shows and describes the basic principle, 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 are only preferred examples of the utility model and are not used to limit 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 utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A puncture-resistant composite geomembrane, comprising a geomembrane substrate layer (1), characterized in that: An elastic protective layer I (2) is fixedly provided on the back side of the geomembrane substrate layer (1), an elastic protective layer II (3) is fixedly provided on the outer side of the geomembrane substrate layer (1), a puncture-resistant layer I (201) is fixedly provided on the back side of the elastic protective layer I (2), a flame-retardant layer (4) is fixedly provided on the back side of the puncture-resistant layer I (201), the flame-retardant layer (4) is filled with a flame retardant (401), a plurality of anti-slip convex strips (5) are fixedly provided at intervals on the back side of the flame-retardant layer (4), a puncture-resistant layer II (301) is fixedly provided on the outer side of the elastic protective layer II (3), and a wear-resistant layer (6) is fixedly provided on the outer side of the puncture-resistant layer II (301).

2. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The elastic protective layer I (2) and the elastic protective layer II (3) are both elastic layer components made of polyurethane foam.

3. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The puncture-resistant layer I (201) and the puncture-resistant layer II (301) are both puncture-resistant layer components made of polyamide fiber.

4. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The thickness of the puncture-resistant layer II (301) is greater than the thickness of the wear-resistant layer (6).

5. The puncture-resistant composite geomembrane according to claim 4, characterized in that: The thicknesses of the elastic protective layer I (2), the puncture-resistant layer I (201), the elastic protective layer II (3) and the puncture-resistant layer II (301) are all the same and are smaller than the thickness of the geomembrane substrate layer (1).

6. The puncture-resistant composite geomembrane according to claim 1, characterized in that: The plurality of anti-skid convex strips (5) are evenly spaced and distributed, and the thickness of the anti-skid convex strips (5) is 1 mm-1.5 mm.

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