Geomembrane connecting structure
By using two layers of geomembrane at the bottom of the reservoir and a single layer of geomembrane on the dam slope, and performing hot melt welding and bonding, the problems of poor quality of geomembrane connections and large resource consumption in the existing technology have been solved, and better anti-seepage effect and resource conservation have been achieved.
Patent Information
- Application Number
- CN202422228697.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The geomembrane connection method between the reservoir bottom and the dam slope is poor, and water seepage is prone to occur, and too much geomembrane is used and too much resource is consumed.
Two layers of geomembrane are used at the bottom of the reservoir, and a single layer of geomembrane is used on the dam slope. By setting a gap at the bottom of the reservoir, the connection area of the dam slope geomembrane is inserted into the gap, and hot melt welding and bonding are performed to enhance the connection effect.
It improves the connection effect and anti-seepage quality of geomembrane, reduces the use of geomembrane, and reduces resource consumption.
Smart Images
Figure CN222990792U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of water conservancy projects, and particularly to a geomembrane connection structure. Background Art
[0002] Geomembranes are widely used in the engineering field of preventing seepage, especially in the solid waste disposal process, and are widely used in the anti-seepage of landfills, the anti-seepage of tailing ponds, the anti-seepage of high-salt evaporation ponds, and the anti-seepage of reservoirs. In addition to the quality of the geomembrane itself, the key to the anti-seepage effect of the geomembrane lies in the welding method and connection method during the laying process.
[0003] Currently, geomembranes are laid on both the bottom and slopes of reservoirs. Generally, the number of geomembrane layers laid on the bottom of the reservoir is the same as that on the slopes of the dam. However, the connection quality of this connection method is poor, and water seepage is likely to occur. Moreover, too many geomembranes are used, consuming too many resources. Summary of the Utility Model
[0004] To solve or partially solve the problems existing in the related technologies, this application provides a geomembrane structure, which can use two layers of geomembranes at the bottom of the reservoir and one layer of geomembrane on the slopes of the dam, resulting in better connection effect, better anti-seepage quality, and can reduce the use of one layer of geomembrane and the consumption of resources.
[0005] This application provides a geomembrane connection structure, including an upper geomembrane and a lower geomembrane on one side of the bottom of the reservoir. The upper geomembrane and the lower geomembrane are arranged relatively parallel, and there is a gap between the upper geomembrane and the lower geomembrane. The upper geomembrane is provided with a first welding area and an adhesive area. The first welding area is arranged on the left side of the adhesive area. The lower geomembrane is provided with a second welding area; a slope geomembrane on one side of the slope of the dam. The connection area on one side of the slope geomembrane is inserted into the gap. The upper side of the connection area of the slope geomembrane is hot-melt welded to the first welding area of the upper geomembrane and adhered to the adhesive area of the upper geomembrane. The lower side of the connection area of the slope geomembrane is hot-melt welded to the second welding area of the lower geomembrane.
[0006] Further, double-track welding points are provided on the second welding area of the lower geomembrane. The lower side of the connection area of the slope geomembrane is hot-melt welded to the second welding area of the lower geomembrane through the double-track welding points.
[0007] Further, the length of the connection area of the slope geomembrane is greater than 1.1 m.
[0008] Further, the first welding area of the upper geomembrane is larger than the second welding area of the lower geomembrane, and the length of the first welding area is greater than or equal to 1 m.
[0009] Further, the bonding area of the upper geomembrane is greater than or equal to the second welding area of the lower geomembrane, the length of the bonding area is greater than or equal to 10 cm, and the length of the second welding area is greater than or equal to 10 cm.
[0010] Further, the length of the upper geomembrane is greater than the length of the lower geomembrane.
[0011] Further, clay is provided on the upper side of the dam slope geomembrane. The clay is located on the right side of the bonding area of the upper geomembrane, and the clay is provided at the connection between the dam slope and the reservoir bottom.
[0012] Further, the dam slope geomembrane, the upper geomembrane, and the lower geomembrane are made of polyethylene.
[0013] The technical solution provided by this application may include the following beneficial effects:
[0014] In the geomembrane connection structure of this application, for the upper geomembrane and the lower geomembrane on the side of the reservoir bottom, the upper geomembrane and the lower geomembrane are arranged relatively parallel, there is a gap between the upper geomembrane and the lower geomembrane, the upper geomembrane is provided with a first welding area and a bonding area, the first welding area is arranged on the left side of the bonding area, and the lower geomembrane is provided with a second welding area; for the dam slope geomembrane on the side of the dam slope, the connection area on one side of the dam slope geomembrane is inserted into the gap, the upper side of the connection area of the dam slope geomembrane is hot melt welded to the first welding area of the upper geomembrane and bonded to the bonding area of the upper geomembrane, and the lower side of the connection area of the dam slope geomembrane is hot melt welded to the second welding area of the lower geomembrane, which can make the connection effect better and the anti-seepage quality better by using two layers of geomembranes at the reservoir bottom and one layer of geomembrane at the dam slope, and can reduce the use of one layer of geomembrane and the consumed resources.
[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] By describing the exemplary embodiments of this application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of this application will become more obvious. Among them, in the exemplary embodiments of this application, the same reference numerals generally represent the same components.
[0017] Figure 1 is a schematic structural diagram of the geomembrane connection structure shown in the embodiments of this application;
[0018] Figure 2 It is another schematic structural diagram of the geomembrane connection structure shown in the embodiments of the present application.
[0019] Reference numerals: 1, reservoir bottom; 2, dam slope; 3, upper geomembrane; 301, first welding area; 302, bonding area; 4, lower geomembrane; 401, second welding area; 5, dam slope geomembrane; 501, connection area; 6, double-track welding point; 7, clay. Detailed implementation manners
[0020] The embodiments of the present application will be described in more detail below with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to convey the scope of the present application fully to those skilled in the art.
[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.
[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 thus should not be construed as a limitation to the present application.
[0023] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0024] The reservoir bottom generally refers to the land surface area covered by water after the reservoir is filled to a certain water level. This area may have been farmland, forest land, villages, rivers or other natural terrains before the reservoir was built and filled. The formation of the reservoir bottom is closely related to the construction and operation of the reservoir, and will have a profound impact on the surrounding environment, ecosystem and water quality.
[0025] The dam slope refers to the two sloping parts of the dam in a hydraulic structure. One side faces the water body (the water-facing side is called the inner dam slope), and the other side faces away from the water body (the water-backing side is called the outer dam slope). The dam slope usually consists of an upper part and a lower part. The upper slope is relatively gentle, which is used to reduce the water flow velocity and reduce the scouring damage of the water flow to the dam body; the lower slope is relatively steep, which is used to improve the anti-sliding performance of the dam body and prevent the dam body from sliding.
[0026] Setting geomembrane between the reservoir bottom and the dam slope can enhance the anti-seepage function and structural reinforcement function. Reservoirs are usually built in areas with complex geological conditions. There may be natural gaps or fissures between the reservoir bottom and the surrounding rocks, which are likely to cause water leakage. As an efficient anti-seepage material, geomembrane has excellent anti-seepage performance and can effectively isolate the water body between the reservoir bottom and the dam slope, reducing or even avoiding the occurrence of leakage. By preventing leakage, geomembrane can ensure that the water body of the reservoir can be effectively stored, thus improving the water storage capacity of the reservoir and meeting various needs such as irrigation, water supply and power generation; the geomembrane is closely combined with the soil body of the reservoir bottom and the dam slope to form an integral structure, which helps to enhance the overall stability of the reservoir. Mechanically, the geomembrane can improve the structural performance of the dam body itself, inhibit the strain of the soil body, lower the free water surface, thereby reducing the seepage flow rate, which is beneficial to the stability of the downstream dam slope. At the dam slope position, water flow scouring is an issue that cannot be ignored. Geomembrane can be used as a protective layer to reduce the direct scouring effect of water flow on the dam slope soil body and protect the dam slope from erosion and damage.
[0027] Geomembrane is widely used in the engineering field of preventing leakage, especially in the process of solid waste disposal, it is widely used in the anti-seepage of landfills, the anti-seepage of tailings reservoirs, the anti-seepage of high-salt water drying ponds, reservoir anti-seepage and other projects. In addition to the quality of the geomembrane itself, the key to the anti-seepage effect of the geomembrane lies in the welding method and connection method during the laying process.
[0028] Currently, geomembrane is laid on both the reservoir bottom and the dam slope. Generally, the number of layers of geomembrane laid on the reservoir bottom is the same as that laid on the dam slope. However, the connection quality of this connection method is poor, and water seepage is likely to occur, and too much geomembrane is used, consuming too many resources.
[0029] In view of the above problems, an embodiment of the present application provides a geomembrane structure, which can use two layers of geomembranes at the bottom of the reservoir and a single layer of geomembrane on the dam slope, so that the connection effect is better, the anti-seepage quality is better, and the use of one layer of geomembrane can be reduced, reducing the consumed resources.
[0030] The technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0031] Figure 1 It is a schematic structural diagram of the geomembrane connection structure shown in the embodiment of the present application.
[0032] See Figures 1-2 , a geomembrane connection structure, including an upper geomembrane 3 and a lower geomembrane 4 located on one side of the bottom 1 of the reservoir. The upper geomembrane 3 and the lower geomembrane 4 are arranged relatively parallel, and the upper geomembrane 3 and the lower geomembrane 4 are fixedly connected to the reservoir wall of the bottom 1 of the reservoir, which can fix the upper geomembrane 3 and the lower geomembrane 4 in the reservoir. There is a gap between the upper geomembrane 3 and the lower geomembrane 4, and the setting of the gap can be set according to actual needs, such as setting according to parameters such as the actual width of the dam slope geomembrane 5, and there is no limitation here;
[0033] The upper geomembrane 3 is provided with a first welding area 301 and an adhesive area 302. The first welding area 301 is arranged on the left side of the adhesive area 302. The first welding area 301 can be hot-melt welded to the dam slope geomembrane 5. After the hot-melt welding is completed, the adhesive area 302 is then adhered to the dam slope geomembrane 5, which can better strengthen the anti-seepage function. The lower geomembrane 4 is provided with a second welding area 401. The lower geomembrane 4 can be welded to the dam slope geomembrane 5 through the second welding area 401 to increase the fastening function;
[0034] The dam slope geomembrane 5 located on one side of the dam slope 2. The connection area 501 on one side of the dam slope geomembrane 5 is inserted into the gap. The dam slope geomembrane 5 can be a geomembrane that is folded multiple times. One end of the dam slope geomembrane 5 can be folded at the connection of the bottom 1 of the reservoir and the dam slope 2 to adapt to the angle of the connection. One side of the dam slope geomembrane 5 has a certain angle and is arranged on one side of the dam slope 2. The other side of the dam slope 2 geomembrane can be arranged in parallel with the upper geomembrane 3 and the lower geomembrane 4 and is located on one side of the bottom 1 of the reservoir. The side of the dam slope geomembrane 5 located on the bottom 1 of the reservoir can be inserted into the gap to form a connection area 501 with the first geomembrane and the second geomembrane. The width of the dam slope geomembrane 5 can be the same as the width of the first geomembrane and the second geomembrane. The upper side of the connection area 501 of the dam slope geomembrane 5 is hot-melt welded to the first welding area 301 of the upper geomembrane 3 and adhered to the adhesive area 302 of the upper geomembrane 3. The lower side of the connection area 501 of the dam slope geomembrane 5 is hot-melt welded to the second welding area 401 of the lower geomembrane 4.
[0035] In a possible implementation, double-track welding points 6 are provided on the second welding area 401 of the lower geomembrane 4, and the lower side of the connection area 501 of the dam slope geomembrane 5 is hot-melt welded to the second welding area 401 of the lower geomembrane 4 through the double-track welding points 6.
[0036] In a possible implementation, the length of the connection area 501 of the dam slope geomembrane 5 is greater than 1.1 m, and the connection area 501 of the dam slope geomembrane 5 inserted into the gap is greater than 1.1 m, so that it can be better welded to the upper geomembrane 3 and the lower geomembrane 4.
[0037] In a possible implementation, the first welding area 301 of the upper geomembrane 3 is larger than the second welding area 401 of the lower geomembrane 4, the length of the first welding area 301 is greater than or equal to 1 m, the length of the upper geomembrane 3 can be greater than the length of the lower geomembrane 4, and the fact that the first welding area 301 of the upper geomembrane 3 is greater than 1 m can make the connection between the upper geomembrane 3 and the dam slope geomembrane 5 more stable.
[0038] In a possible implementation, the bonding area 302 of the upper geomembrane 3 is greater than or equal to the second welding area 401 of the lower geomembrane 4, the length of the bonding area 302 is greater than or equal to 10 cm, the length of the second welding area 401 is greater than or equal to 10 cm. First, the upper geomembrane 3 is welded and connected to the dam slope geomembrane 5 through the first welding area 301, and then it is bonded to the dam slope geomembrane 5 through the bonding area 302. During the bonding process, a special geomembrane adhesive can be used for bonding. The special geomembrane adhesive is mainly composed of components such as organic polymers, diluents, and fillers, and is a high-strength polymer adhesive that can bond the geomembrane well, enhance the anti-seepage ability of the upper geomembrane 3 and the dam slope geomembrane 5, and improve the safety and stability of the entire structure.
[0039] In a possible implementation, the length of the upper geomembrane 3 is greater than the length of the lower geomembrane 4, which can better improve the safety and stability of the entire structure.
[0040] In a possible implementation, clay 7 is provided on the upper side of the dam slope geomembrane 5. The clay 7 is located on the right side of the bonding area 302 of the upper geomembrane 3. The clay 7 is provided at the connection between the dam slope 2 and the reservoir bottom 1. Through the setting of the clay 7, the anti-seepage function of the upper geomembrane 3, the lower geomembrane 4, and the dam slope geomembrane 5 can be further improved, the anti-seepage effect can be enhanced, and the safety and stability of the entire structure can be improved. The compaction degree of the clay 7 ≥ 0.93, and the permeability coefficient ≤ 1×10 -5 cm / s.
[0041] In a possible implementation, the dam slope geomembrane 5, the upper geomembrane 3, and the lower geomembrane 4 are made of polyethylene, which can have better anti-seepage function and anti-corrosion function, and can improve the service life of the geomembrane.
[0042] Working principle: By setting the upper geomembrane 3 and the lower geomembrane 4 at the bottom 1 of the reservoir and setting the dam slope geomembrane 5 at the dam slope 2, the corresponding places of the first welding area 301 of the upper geomembrane 3 and the connecting area 501 of the dam slope geomembrane 5 are subjected to hot melt welding. After the first welding area 301 and the connecting area 501 are welded, the bonding area 302 of the upper geomembrane 3 is bonded to the corresponding place of the connecting area 501 of the dam slope geomembrane 5 through an adhesive, and this area is located on the right side of the first welding area 301; after the upper geomembrane 3 and the dam slope geomembrane 5 are connected, the second welding area 401 of the lower geomembrane 4 is hot melt welded to the lower side of the connecting area 501 of the dam slope geomembrane 5 to complete the connection between the upper geomembrane 3, the lower geomembrane 4 and the dam slope geomembrane 5.
[0043] For the geomembrane connection structure of the present application, the upper geomembrane 3 and the lower geomembrane 4 on one side of the bottom 1 of the reservoir are arranged relatively parallel, and there is a gap between the upper geomembrane 3 and the lower geomembrane 4. The upper geomembrane 3 is provided with a first welding area 301 and a bonding area 302, and the first welding area 301 is arranged on the left side of the bonding area 302. The lower geomembrane 4 is provided with a second welding area 401; the dam slope geomembrane 5 on one side of the dam slope 2, the connecting area 501 on one side of the dam slope geomembrane 5 is inserted into the gap, the upper side of the connecting area 501 of the dam slope geomembrane 5 is hot melt welded to the first welding area 301 of the upper geomembrane 3 and bonded to the bonding area 302 of the upper geomembrane 3, and the lower side of the connecting area 501 of the dam slope geomembrane 5 is hot melt welded to the second welding area 401 of the lower geomembrane 4, which can use two layers of geomembranes at the bottom 1 of the reservoir and a single layer of geomembrane at the dam slope 2, so that the connection effect is better, the anti-seepage quality is better, and the use of one layer of geomembrane can be reduced, and the consumed resources can be reduced.
[0044] The solution of the present application has been described in detail above with reference to the drawings. In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily essential to the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided and deleted according to actual needs.
[0045] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of technologies in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A geomembrane connection structure, characterized in that: include: An upper geomembrane and a lower geomembrane located on one side of the reservoir bottom, the upper geomembrane and the lower geomembrane are arranged relatively parallel, a gap is arranged between the upper geomembrane and the lower geomembrane, the upper geomembrane is provided with a first welding area and a bonding area, the first welding area is arranged on the left side of the bonding area, and the lower geomembrane is provided with a second welding area; The dam slope geomembrane is located on one side of the dam slope, and the connection area on one side of the dam slope geomembrane is inserted into the gap. The upper side of the connection area of the dam slope geomembrane is hot-melt welded to the first welding area of the upper geomembrane, and is bonded to the bonding area of the upper geomembrane. The lower side of the connection area of the dam slope geomembrane is hot-melt welded to the second welding area of the lower geomembrane.
2. The geomembrane connection structure according to claim 1, characterized in that: A double-track welding point is arranged on the second welding area of the lower geomembrane, and the lower side of the connection area of the dam slope geomembrane is hot-melt welded to the second welding area of the lower geomembrane through the double-track welding point.
3. The geomembrane connection structure according to claim 1, characterized in that: The length of the connection area of the dam slope geomembrane is greater than 1.1m.
4. The geomembrane connection structure according to claim 1 or 3, characterized in that: The first welding area of the upper geomembrane is larger than the second welding area of the lower geomembrane, and the length of the first welding area is greater than or equal to 1 m.
5. The geomembrane connection structure according to claim 1 or 3, characterized in that: The bonding area of the upper geomembrane is greater than or equal to the second welding area of the lower geomembrane, the length of the bonding area is greater than or equal to 10 cm, and the length of the second welding area is greater than or equal to 10 cm.
6. The geomembrane connection structure according to claim 1, characterized in that: The length of the upper geomembrane is greater than the length of the lower geomembrane.
7. The geomembrane connection structure according to claim 1, characterized in that: The upper side of the dam slope geomembrane is arranged on clay, the clay is located on the right side of the bonding area of the upper geomembrane, and the clay is arranged at the connection between the dam slope and the reservoir bottom.
8. The geomembrane connection structure according to claim 1, characterized in that: The dam slope geomembrane, the upper geomembrane and the lower geomembrane are made of polyethylene.