CN215243337U - Composite geomembrane for hydraulic engineering - Google Patents
Composite geomembrane for hydraulic engineering Download PDFInfo
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- CN215243337U CN215243337U CN202121666387.6U CN202121666387U CN215243337U CN 215243337 U CN215243337 U CN 215243337U CN 202121666387 U CN202121666387 U CN 202121666387U CN 215243337 U CN215243337 U CN 215243337U
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Abstract
The utility model discloses a composite geomembrane for hydraulic engineering, including first geotechnique's cloth, the first barrier layer of bottom fixedly connected with of first geotechnique's cloth, the first hot melt adhesive layer of bottom fixedly connected with of first barrier layer, the bottom fixedly connected with second barrier layer of first hot melt adhesive layer, the bottom fixedly connected with second hot melt adhesive layer of second barrier layer, the bottom fixedly connected with second geotechnique's cloth layer of second hot melt adhesive layer, the frictional force between the multiplicable geomembrane of wear-resisting face and surrounding medium interface, avoided the geomembrane to take place the gliding in waterproof prevention of seepage side slope engineering use, high polyethylene has acid and alkali-resistance, organic solvent resistance, electrical insulation is good, in the time of low temperature, still can keep certain toughness. The mechanical strength such as surface hardness, tensile strength, rigidity all are higher than LDPE's characteristics, and the dovetail groove has been seted up at the back at first geotechnological cloth 1 top, can have trapezoidal compound geomembrane to splice fast through seting up the dovetail groove with another, and construction convenience is efficient.
Description
Technical Field
The utility model relates to a geomembrane technical field specifically is a composite geomembrane for hydraulic engineering.
Background
The geomembrane is a geomembrane anti-seepage material compounded by a plastic film serving as an anti-seepage base material and non-woven fabrics, and the anti-seepage performance of the novel material geomembrane mainly depends on the anti-seepage performance of the plastic film. The plastic film for domestic and overseas anti-seepage application mainly comprises polyvinyl chloride (PVC), Polyethylene (PE) and EVA (ethylene/vinyl acetate copolymer), and ECB (ethylene vinyl acetate modified asphalt blended geomembrane) is also designed and used in tunnel application, and is a high-molecular chemical flexible material with small specific gravity, strong extensibility, high deformation adaptability, corrosion resistance, low temperature resistance and good freezing resistance.
The geomembrane is a waterproof barrier material taking high molecular polymers as basic raw materials. The method mainly comprises the following steps: low Density Polyethylene (LDPE) geomembranes, High Density Polyethylene (HDPE) geomembranes, and EVA geomembranes. 1. The width and thickness specifications are complete. 2. Has excellent environmental stress cracking resistance and excellent chemical corrosion resistance. 3. Excellent chemical corrosion resistance. 4. Has a larger service temperature range and longer service life. 5. The method is used for refuse landfill, tailing storage, channel seepage prevention, dam seepage prevention, subway engineering and the like.
Because the area of a single geomembrane cannot be made to be large, the common processing mode is that in the construction process, two sides of the composite geomembrane are ground on site by constructors and then are connected and fixed by bonding materials, only in this link, about 30% of time of the constructors can be consumed in the field construction process, and the membrane bodies are easily damaged because the grinding precision of the constructors is difficult to be unified.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a composite geomembrane for hydraulic engineering, in order to solve because the area of monolithic geomembrane does not have the method very big, the processing mode commonly used is in the work progress, utilize constructor to carry out the on-the-spot processing of polishing to composite geomembrane's both sides, then connect fixedly with bonding material, only this link, can consume the time about constructor 30% in the on-the-spot work progress, and because constructor is difficult unified in the precision of polishing, cause the problem of damage to the membrane body very easily.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a composite geomembrane for hydraulic engineering, includes first geotechnological cloth, the first barrier layer of bottom fixedly connected with of first geotechnological cloth, the first hot melt adhesive layer of bottom fixedly connected with of first barrier layer, the bottom fixedly connected with second barrier layer of first hot melt adhesive layer, the bottom fixedly connected with second hot melt adhesive layer of second barrier layer, the bottom fixedly connected with second geotechnological cloth layer of second hot melt adhesive layer.
Preferably, the bottom of the second geotextile layer is fixedly connected with a wear-resistant surface.
Preferably, the back of the top of the first geotextile is provided with a trapezoidal groove.
Preferably, the tip of compound geomembrane has the joint structure, the joint structure is that one end is trapezoidal groove, and the other end is trapezoidal.
Preferably, the first impermeable layer and the second impermeable layer are made of high density polyethylene.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this composite geomembrane for hydraulic engineering, through setting up the joint structure, trapezoidal groove has been seted up to composite geomembrane, another piece of geomembrane is provided with trapezoidally, can splice the composite geomembrane that has trapezoidal composite geomembrane and the composite geomembrane that sets up trapezoidal groove mutually when needs use, thereby it does very big to have solved the area of monolithic geomembrane, the processing method commonly used is in the work progress, utilize constructor to carry out the on-the-spot processing of polishing to the both sides of composite geomembrane, then connect fixedly with bonding material, only this link, can consume constructor about 30% time in the on-the-spot work progress, and because constructor is difficult unified in the precision of polishing, cause the damage to the membrane body very easily.
2. This composite geomembrane for hydraulic engineering, wear-resisting face can increase the frictional force between geomembrane and the medium interface on every side, has avoided the geomembrane to take place the gliding in waterproof prevention of seepage side slope engineering use, and high polyethylene has acid and alkali-resistance, and organic solvent is resistant, and electrical insulation is good, and in the time of low temperature, still can keep certain toughness. The mechanical strength such as surface hardness, tensile strength, rigidity all are higher than LDPE's characteristics, and the dovetail groove has been seted up at the back at first geotechnological cloth 1 top, can have trapezoidal compound geomembrane to splice fast through seting up the dovetail groove with another, and construction convenience is efficient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the utility model relates to a hydraulic engineering is with compound geomembrane left side view.
Fig. 3 is the utility model relates to a composite geomembrane top view for hydraulic engineering.
In the figure: 1. the anti-seepage wear-resistant geotextile comprises a first geotextile layer, 2, a first anti-seepage layer, 3, a first hot melt adhesive layer, 4, a second anti-seepage layer, 5, a second hot melt adhesive layer, 6, a second geotextile layer, 7, a wear-resistant surface, 8 and a trapezoid groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a composite geomembrane for hydraulic engineering, includes first geotechnological cloth 1, the first barrier layer 2 of bottom fixedly connected with of first geotechnological cloth 1, the first hot melt adhesive layer 3 of bottom fixedly connected with of first barrier layer 2, the bottom fixedly connected with second barrier layer 4 of first hot melt adhesive layer 3, the bottom fixedly connected with second hot melt adhesive layer 5 of second barrier layer 4, the bottom fixedly connected with second geotechnological cloth layer 6 of second hot melt adhesive layer 5.
Wherein, the bottom of the second geotextile layer 6 is fixedly connected with a wear-resistant surface 7.
In this embodiment, the bottom of the second geotextile layer 6 is fixedly connected with the wear-resistant surface 7, and the wear-resistant surface 7 can increase the friction force between the geomembrane and the surrounding medium interface, thereby preventing the geomembrane from sliding down in the use process of the waterproof and impermeable side slope engineering.
Wherein, the back at the top of first geotechnical cloth 1 is equipped with trapezoidal groove 8.
In this embodiment, the back of the top of the first geotextile 1 is provided with the trapezoidal groove 8, and the first geotextile can be quickly spliced with another composite geomembrane with a trapezoidal shape by providing the trapezoidal groove 8.
Wherein, the tip of compound geomembrane has the joint structure, and the joint structure is that one end is trapezoidal groove 8, and the other end is trapezoidal.
In this embodiment, trapezoidal groove 8 can form the joint structure with trapezoidal, can splice fast, need not artifical the polishing.
Wherein, the first impermeable layer 2 and the second impermeable layer 4 are made of high density polyethylene.
In the embodiment, the high-density polyethylene has acid and alkali resistance, organic solvent resistance and excellent electrical insulation, and can still maintain certain toughness at low temperature. The surface hardness, tensile strength, rigidity and other mechanical strength are all higher than that of LDPE.
The working principle is as follows: through setting up the joint structure, trapezoidal groove 8 has been seted up to compound geomembrane, and another geomembrane is provided with trapezoidally, can splice the compound geomembrane that has trapezoidal compound geomembrane and the compound geomembrane of seting up trapezoidal groove 8 fast when needs use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a composite geomembrane for hydraulic engineering, includes first geotechnological cloth (1), its characterized in that: the geotextile comprises a first geotextile (1) and a first impermeable layer (2) fixedly connected to the bottom of the first geotextile, a first hot-melt adhesive layer (3) fixedly connected to the bottom of the first impermeable layer (2), a second impermeable layer (4) fixedly connected to the bottom of the first hot-melt adhesive layer (3), a second hot-melt adhesive layer (5) fixedly connected to the bottom of the second impermeable layer (4), and a second geotextile layer (6) fixedly connected to the bottom of the second hot-melt adhesive layer (5).
2. The composite geomembrane for the water conservancy project according to claim 1, wherein: and the bottom of the second geotextile layer (6) is fixedly connected with a wear-resistant surface (7).
3. The composite geomembrane for the water conservancy project according to claim 1, wherein: the back of the top of the first geotextile (1) is provided with a trapezoidal groove (8).
4. The composite geomembrane for the water conservancy project according to claim 1, wherein: the tip of compound geomembrane has the joint structure, the joint structure is that one end is trapezoidal groove (8), and the other end is trapezoidal.
5. The composite geomembrane for the water conservancy project according to claim 1, wherein: the first impermeable layer (2) and the second impermeable layer (4) are made of high-density polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121666387.6U CN215243337U (en) | 2021-07-21 | 2021-07-21 | Composite geomembrane for hydraulic engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121666387.6U CN215243337U (en) | 2021-07-21 | 2021-07-21 | Composite geomembrane for hydraulic engineering |
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| CN215243337U true CN215243337U (en) | 2021-12-21 |
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| CN202121666387.6U Active CN215243337U (en) | 2021-07-21 | 2021-07-21 | Composite geomembrane for hydraulic engineering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116905570A (en) * | 2023-07-25 | 2023-10-20 | 江苏科技大学 | Intelligent telescopic bubble pad geomembrane with positioning device |
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2021
- 2021-07-21 CN CN202121666387.6U patent/CN215243337U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116905570A (en) * | 2023-07-25 | 2023-10-20 | 江苏科技大学 | Intelligent telescopic bubble pad geomembrane with positioning device |
| CN116905570B (en) * | 2023-07-25 | 2024-03-26 | 江苏科技大学 | Intelligent telescopic bubble pad geomembrane with positioning device |
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