CN210887121U

CN210887121U - Composite geomembrane

Info

Publication number: CN210887121U
Application number: CN201920732630.6U
Authority: CN
Inventors: 王小平
Original assignee: Xinjiang Shunxinyuan Geotechnical Material Co ltd
Current assignee: Xinjiang Shunxinyuan Geotechnical Material Co ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-06-30
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a composite geomembrane belongs to the geotechnical material field, including polyvinyl chloride rete, aluminium silicate fiber rete, fold layer and high density polyethylene geomembrane layer are prevented to the fold. Each film layer of the composite geomembrane is formed by thermoplastic or mould pressing adhesion; the left end of the high-density polyethylene geomembrane layer is provided with the pit, the right end of the high-density polyethylene geomembrane layer is provided with the raised rubber block, and the pit and the raised rubber block are matched with each other, so that a plurality of composite geomembranes can be spliced to form the composite geomembrane, the deformation resistance and the tensile strength of the composite geomembrane are improved, and the practicability of the product is improved; the polyvinyl chloride film layer is arranged above the aluminum silicate fiber film layer and is used for preventing the composite geomembrane from fading and cracking under the irradiation of the sun; the anti-wrinkle composite geomembrane has the advantages that the anti-wrinkle layer is arranged between the aluminum silicate fiber film layer and the high-density polyethylene geomembrane layer, so that the composite geomembrane is not easy to wrinkle during construction, a complex construction mode is not needed, manpower and material resources are greatly saved, and the EVA foam strip is inserted in the middle of the geomembrane to improve the anti-tensile capability.

Description

Composite geomembrane

Technical Field

The utility model relates to a geotechnical material field especially relates to a compound geomembrane.

Background

At present, in the process of national infrastructure, a large number of waterproof and impervious projects are involved, a large number of geomembranes are used for solving the waterproof and impervious projects, and at present, the known composite geomembrane is formed by compounding geotextiles and geomembranes, and is suitable for the seepage-proofing treatment of dams and drainage ditches and the antifouling treatment of waste material yards. In the actual construction process, the traditional composite geomembrane has the problems that the laying is uneven and easy to damage, and the geomembrane fades and cracks after being sunned by the sun.

Chinese patent CN201620582472.7 discloses a single-rough-surface composite geomembrane, which comprises a high-density polyethylene geomembrane layer, wherein the upper surface of the high-density polyethylene geomembrane layer is provided with a bulge; the lower side of the high-density polyethylene geotextile is provided with a needle-punched geotextile, and the needle-punched geotextile is a polyethylene resin strip and is thermoplastic, molded or bonded on the high-density polyethylene geomembrane layer; although the single-rough-surface composite geomembrane can play a role in water resistance and permeability resistance, the product structure has poor splicing effect, insufficient firmness after splicing, weak tensile strength and deformation resistance, and reduced product quality.

Disclosure of Invention

Therefore, the utility model provides a composite geomembrane for solve the weak problem of traditional composite geomembrane anti deformability.

The utility model provides a compound geomembrane, include: the anti-wrinkle composite material comprises a polyvinyl chloride film layer, an aluminum silicate fiber film layer, an anti-wrinkle layer and a high-density polyethylene geomembrane layer;

the lower surface of the polyvinyl chloride film layer is bonded with the upper surface of the aluminum silicate fiber film layer;

the lower surface of the aluminum silicate fiber film layer is bonded with the upper surface of the wrinkle-proof layer;

the lower surface of the wrinkle-proof layer is bonded with the upper surface of the high-density polyethylene geomembrane layer;

EVA foam strips are inserted among the polyvinyl chloride film layer, the aluminum silicate fiber film layer, the wrinkle-proof layer and the high-density polyethylene geomembrane layer;

the left end of the high-density polyethylene geomembrane layer is provided with a pit, and the right end of the high-density polyethylene geomembrane layer is provided with a bulge.

Further, the raised part is a rubber block which is bonded with the high-density polyethylene geomembrane layer.

Furthermore, the shape of the protruding rubber block is semicircular, the height of the protruding rubber block is 2mm, and the protruding rubber block is matched with the concave pit.

Further, the thickness of the vinyl chloride film layer is 4 mm.

Further, the thickness of the high-density polyethylene geomembrane layer is 5 mm.

Furthermore, the anti-wrinkle layer is formed by adopting a triangular unit structure.

Furthermore, the anti-wrinkle layer is made of PP materials.

Further, the lower surface of the high-density polyethylene geomembrane layer is provided with a needle-punched geotextile.

Further, the distance between the EVA foam strips is 10 cm.

Further, each film layer of the composite geomembrane is formed by thermoplastic or die pressing and bonding.

Compared with the prior art, the beneficial effects of the utility model reside in that high density polyethylene geomembrane layer top has set up the polyvinyl chloride rete, and the polyvinyl chloride rete has fine ultraviolet resistance's ability, can prevent that solar radiation from making compound geomembrane colour fading fracture.

Furthermore, the anti-wrinkle layer is arranged between the aluminum silicate fiber membrane layer and the high-density polyethylene geomembrane layer, so that the composite geomembrane is not easy to wrinkle during construction, a complex construction mode is not needed, and manpower and material resources are greatly saved.

Further, the left end of the high-density polyethylene geomembrane layer is provided with a pit, and the right end of the high-density polyethylene geomembrane layer is provided with a bulge; the pits and the bulges are mutually matched, so that the composite geomembrane can be spliced and formed.

Particularly, the pit and the raised rubber block are matched in a splicing mode, so that the composite geomembrane can be spliced more firmly and is more convenient for field construction.

Particularly, the rubber is rich in elasticity, and the protruding rubber block is matched with other composite geomembranes, so that the matched place has good elasticity and ductility, the deformation resistance and the tensile strength of the composite geomembrane are improved, and the practicability of the product is enhanced.

Furthermore, the EVA foam strips are inserted into the geomembrane, so that the geomembrane has the anti-aging and shock-absorbing buffering effects, the influence on each layer when the geomembrane is subjected to shear stress can be reduced, and the tensile resistance is improved.

Furthermore, an aluminum silicate fiber film layer is arranged in the geomembrane, so that the tensile capacity of the geomembrane is further enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects and advantages of the invention more apparent, the invention is further described below with reference to the following embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, it is a schematic structural diagram of embodiment 1 of the present invention, including: the anti-wrinkle fabric comprises a polyvinyl chloride film layer 1, an aluminum silicate fiber film layer 2, a high-density polyethylene geotechnical film layer 3, EVA foam strips 4, an anti-wrinkle layer 5, a rubber block 6 and a needle-punched geotechnical cloth 7.

As shown in fig. 1, the composite geomembrane is formed by bonding the films through heat molding or die pressing, the lower surface of the polyvinyl chloride film layer 1 is bonded with the upper surface of the aluminum silicate fiber film layer 2, the thickness of the film layer is 4mm, and the composite geomembrane has good ultraviolet resistance and is used for preventing the composite geomembrane from fading and cracking due to solar radiation.

The aluminum silicate fiber film layer 2 has good tensile property, the lower surface of the aluminum silicate fiber film layer is bonded with the upper surface of the wrinkle-proof layer 5, and the wrinkle-proof layer 5 is formed by adopting a triangular unit structure so as to be stable in structure; the anti-wrinkling layer 5 is made of PP materials, and the hardness and elasticity of the anti-wrinkling layer can achieve the anti-wrinkling effect, so that the composite geomembrane is not prone to wrinkling during construction, complex construction modes are not needed, and manpower and material resources are greatly saved.

The thickness of high density polyethylene geomembrane layer 3 is 5mm for waterproof leak protection, its left end is equipped with the pit, and the right-hand member is equipped with protruding block rubber 6, and pit and protruding block rubber 6 mutually support for the multi-disc compound geomembrane can splice and constitute, and the upper surface of high density polyethylene geomembrane layer 3 bonds with the lower surface of wrinkle resistant layer 5 mutually, and its lower surface bonds with acupuncture geotechnological cloth 7 mutually.

Particularly, the raised rubber blocks 6 improve the tensile strength and the deformation resistance of the composite geomembrane and enhance the practicability of the product; the cooperation concatenation mode of pit and protruding block rubber 4 makes that compound geomembrane can splice more firm, more makes things convenient for the site operation.

Continuing to refer to fig. 1, EVA foam strips 4 are arranged between the polyvinyl chloride film layer 1, the aluminum silicate fiber film layer 2, the high-density polyethylene geomembrane layer 3 and the wrinkle-proof layer 5, and the distance between every two EVA foam strips is 10 cm; EVA foam strip 4 has ageing resistance and shock attenuation buffering effect, can reduce the geomembrane and receive the influence to each layer when shear stress, has improved stretch-proofing ability.

Claims

1. A composite geomembrane, comprising: the anti-wrinkle composite material comprises a polyvinyl chloride film layer, an aluminum silicate fiber film layer, an anti-wrinkle layer and a high-density polyethylene geomembrane layer;

2. The composite geomembrane according to claim 1, wherein said raised portions are rubber blocks bonded to said high density polyethylene geomembrane layer.

3. The composite geomembrane according to claim 1 or 2, wherein the raised rubber blocks are semicircular in shape and have a height of 2mm, and the raised rubber blocks are fitted into the recesses.

4. The composite geomembrane according to claim 1, wherein the thickness of the vinyl chloride film layer is 4 mm.

5. The composite geomembrane according to claim 1, wherein the high density polyethylene geomembrane layer has a thickness of 5 mm.

6. The composite geomembrane according to claim 1, wherein said anti-wrinkle layer is comprised of a triangular cell structure.

7. The composite geomembrane according to claim 1, wherein said anti-wrinkling layer is formed of a PP material.

8. The composite geomembrane according to claim 1, wherein a lower surface of the high density polyethylene geomembrane layer is provided with a needle-punched geotextile.

9. The composite geomembrane according to claim 1, wherein a spacing between said EVA foam strips is 10 cm.

10. The composite geomembrane according to claim 1, wherein each of the membrane layers of the composite geomembrane is bonded by thermoplastic or molding.