A sealing structure between a metal plate and an impermeable geomembrane
By setting a sealing structure between the impermeable geomembrane and the metal plate, and using the metal plate, connecting bolts, and limiting nuts, the problem of cracks in the impermeable geomembrane at the construction joint is solved, thereby improving the stability and sealing of the construction joint and ensuring the waterproof performance of the building.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XIANRUI ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-02-28
- Publication Date
- 2026-07-31
AI Technical Summary
Existing geomembranes are prone to cracking during underground engineering construction due to the large number and width of construction joints, which leads to a decline in the overall waterproofing performance of the building.
A sealing structure is adopted between the metal plate and the impermeable geomembrane. The combination of the metal plate, the connecting bolts and the limiting nuts enhances the stability of the construction joint, and the groove and sealant are used to improve the sealing performance.
It improves the waterproof performance and overall sealing of construction joints, enhances the connection stability between the metal plate and the impermeable geomembrane, and ensures the waterproof effect of the building.
Smart Images

Figure CN224578770U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, and in particular relates to a sealing structure between a metal plate and an impermeable geomembrane. Background Technology
[0002] Geomembranes are materials used in civil engineering and environmental engineering, primarily to prevent water seepage and soil erosion. They are typically made of high-density polyethylene (HDPE), polyvinyl chloride (PVC), or other synthetic materials, possessing excellent waterproofing and chemical resistance. Geomembranes can be used in the construction of reservoirs, dams, canals, and underground projects to prevent water leakage. Geomembranes are high-strength, corrosion-resistant, puncture-resistant, and can withstand soil pressure and mechanical damage. Furthermore, their weldability facilitates connection and sealing during on-site construction.
[0003] When existing geomembranes are used in underground engineering construction, the large number and width of construction joints may cause cracks to appear in the geomembrane at these joints, thus affecting the overall waterproofing performance of the building. Utility Model Content
[0004] This utility model provides a sealing structure between a metal plate and an impermeable geomembrane, aiming to solve the problem that existing impermeable geomembranes may crack at construction joints in underground engineering projects due to the large number and width of construction joints, thereby affecting the overall waterproof performance of the building.
[0005] This utility model is implemented as follows: a sealing structure between a metal plate and an impermeable geomembrane includes an underground wall and two sets of metal plates. A construction joint is provided in the middle of the underground wall for the metal plates to be snapped together. Two metal plates are fixed on the side walls of both sets of metal plates. An impermeable geomembrane is pasted on the surface of the underground wall. A groove is provided in the middle of each metal plate. Several connecting screws are inserted into the inner side wall of the groove. The top of each connecting screw is threaded with a limit nut. A metal plate is snapped into the inside of each groove. An impermeable geomembrane is pasted on the top of each metal plate near the top of the impermeable geomembrane.
[0006] Preferably, both metal plate one and metal plate two are made of stainless steel and are fixedly connected to form an integral structure. Metal plate one is U-shaped, and the external dimensions of metal plate one are adapted to the internal dimensions of the construction joint, which improves the stability of the installation of metal plate one.
[0007] Preferably, each of the side walls of the metal plate has a plurality of slots 2, which are sequentially connected to the slots 1 for insertion of the connecting screws. The slots 2 are symmetrically distributed, and the internal dimensions of the slots 2 are sequentially adapted to the external dimensions of the connecting screws, thereby improving the convenience of installing and positioning the connecting screws.
[0008] Preferably, the construction joint is filled with sealant near the middle of the two metal plates, and the sealant is made of waterproof mortar, which improves the sealing performance of the construction joint.
[0009] Preferably, the sidewalls of the second metal plate near the first metal plate are coated with sealant, and the sealant is evenly adhered to the surface of the first impermeable geomembrane, thereby improving the sealing performance of the second metal plate and the first impermeable geomembrane.
[0010] Preferably, grooves three are provided on the inner sidewall of groove one, and groove three is rectangular and penetrates through metal plate one for filling with sealant, which improves the convenience of filling with sealant.
[0011] Compared with the prior art, the embodiments of this application have the following main advantages: Firstly, by setting up metal plate one, metal plate two, impermeable geomembrane one, impermeable geomembrane two, metal plate three, connecting bolts, and limiting nuts, the stability of the connection of metal plate one is improved by the connecting bolts and limiting nuts. After metal plate three closes the connecting bolts and limiting nuts, the flatness of the end of metal plate one is improved, thereby improving the overall stability of impermeable geomembrane two in sealing metal plate one, construction joint, and metal plate two, thus improving the waterproof performance of the construction joint. Secondly, by setting up groove three and sealant, groove three penetrates the side wall of metal plate one, making it convenient for operators to fill the inside of the construction joint with sealant. After the construction joint is solidified, the sealing performance of the construction joint can be further improved. Attached Figure Description
[0012] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a frontal planar structural diagram of the present invention.
[0014] Figure 3 This is a schematic diagram of the explosive installation structure of the metal plate of this utility model.
[0015] Figure 4 This is a side view sectional structural diagram of the present invention.
[0016] The attached diagram is labeled as follows: 1. Underground wall; 2. Metal plate one; 3. Construction joint; 4. Metal plate two; 5. Impermeable geomembrane one; 6. Impermeable geomembrane two; 7. Groove one; 8. Metal plate three; 9. Connecting bolt; 10. Limiting nut; 11. Groove two; 12. Groove three; 13. Sealant; 14. Joint filler. Detailed Implementation
[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0019] Please see Figure 1-4The present invention provides an embodiment of a sealing structure between a metal plate and an impermeable geomembrane, comprising an underground wall 1 and two sets of metal plates 2. A construction joint 3 is provided in the middle of the underground wall 1 for the metal plates 2 to be snapped together. Two metal plates 4 are fixedly mounted on the side walls of each set of metal plates 2, symmetrically distributed on both sides of the metal plates 2. Both the metal plates 1 and 2 are made of stainless steel and are fixedly connected to form an integral structure. The metal plates 1 and 2 are U-shaped, and their external dimensions are sequentially matched to the internal dimensions of the construction joint 3, thereby improving the sealing structure. To ensure the stability of the metal plate 2 installed inside the construction joint 3, the surface of the underground wall 1 is covered with a waterproof geomembrane 5 using adhesive. The geomembrane 5 is sequentially spliced together by hot-melt welding. The geomembrane 5 is made of high-density polyethylene and is existing technology, so it will not be described in detail here. The sidewalls of the metal plate 2 4 near the metal plate 2 are coated with sealant 13, which is evenly adhered to the surface of the geomembrane 5, improving the sealing performance of the connection between the metal plate 2 4 and the geomembrane 5. A hole is opened in the middle of the metal plate 2. The device has a slot 7, on the inner wall of which several connecting screws 9 are inserted. Each connecting screw 9 has a threaded limit nut 10 at its tip. The side wall of the metal plate 2 has several slots 11 connected to the slot 7, allowing the connecting screws 9 to be inserted. The slots 11 are symmetrically distributed, and their internal dimensions are matched to the external dimensions of the connecting screws 9, improving the ease of installation and positioning. A metal plate 8, made of stainless steel and U-shaped, is also fitted inside the slot 7. The external dimensions of metal plate 38 are compatible with the internal dimensions of groove 17, thereby improving the stability of the installation of the connecting screw 9 and the limiting nut 10. The top of metal plate 24 near the top of geomembrane 15 is covered with geomembrane 26. The top of metal plate 38 is flush with the surface of metal plate 24 and then welded into an integral structure. Geomembrane 26 is laid flat on the top of metal plate 24 and geomembrane 15 and then hot-melt welded to geomembrane 15 to form an integral structure, which improves the stability of the adhesion of geomembrane 26, thereby improving the sealing and waterproof performance of construction joint 3.
[0020] Construction joint 3 is filled with sealant 14 near the middle of the two metal plates 2. The sealant 14 is made of waterproof mortar, which improves the sealing performance of construction joint 3. Grooves 3 12 are opened on the inner side wall of groove 7. The grooves 3 12 are rectangular and penetrate through the metal plate 2 for the sealant 14 to fill, which improves the convenience of filling the sealant 14. After the sealant 14 solidifies, it can further improve the sealing performance of construction joint 3.
[0021] Working principle: When using this sealing structure between the metal plate and the impermeable geomembrane, the construction workers first evenly paste the impermeable geomembrane 5 onto the surface of the underground wall 1 for waterproofing. The impermeable geomembrane 5 is made of high-density polyethylene and is spliced into an integral structure by hot-melt welding. The construction workers then attach two metal plates 2 to the inside of the top of the construction joint 3, and then insert the connecting bolts 9 into the inside of the groove 11. The limiting nut 10 is then threaded onto the end of the connecting bolt 9, thereby improving the stability of the metal plate 2 connection. Then, the metal plate 8 is attached to the inside of the groove 7, which facilitates the sealing of the connecting bolt 9 and the limiting nut 10, and improves the flatness of the end of the metal plate 2. Finally, the impermeable geomembrane 6 is laid flat on the top of the metal plate 4 and the impermeable geomembrane 5 and then hot-melt welded to the impermeable geomembrane 5 to form an integral structure, thereby improving the sealing and waterproofing performance of the construction joint 3.
[0022] Next, the construction workers will pour the sealant 14 into the middle of the construction joint 3 near the metal plate 2 through the groove 3 12. After the sealant 14 solidifies, it can further improve the sealing performance of the construction joint 3.
[0023] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.
[0024] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.
[0025] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A seal structure between a metal sheet and a barrier geomembrane, characterized by, It includes an underground wall (1) and two sets of metal plates (2): the underground wall (1) has a construction joint (3) in the middle for the metal plates (2) to be snapped together, and two metal plates (4) are fixed on the side walls of the two sets of metal plates (2). The surface of the underground wall (1) is covered with a geomembrane (5). The middle of the metal plates (2) has a slot (7). Several connecting screws (9) are inserted into the inner side wall of the slot (7). The top of the connecting screws (9) is threaded with a limit nut (10). The inside of the slot (7) is fitted with a metal plate (8). The top of the metal plate (4) near the top of the geomembrane (5) is covered with a geomembrane (6).
2. A seal between a metal sheet and a geomembrane according to claim 1, characterized in that: The first metal plate (2) and the second metal plate (4) are both made of stainless steel and are fixedly connected to form an integral structure. The first metal plate (2) is U-shaped, and the external dimensions of the first metal plate (2) are adapted to the internal dimensions of the construction joint (3).
3. A seal between a metal sheet and a barrier geomembrane according to claim 1, characterized in that: The sidewall of the metal plate (2) is provided with a number of slots (11). The slots (11) are connected to the slots (7) in sequence for the insertion of the connecting screw (9). The slots (11) are symmetrically distributed. The internal dimensions of the slots (11) are adapted to the external dimensions of the connecting screw (9).
4. The seal between a metal sheet and a barrier geomembrane according to claim 1, characterized in that: The construction joint (3) near the middle of the two metal plates (2) is filled with sealant (14), and the sealant (14) is made of waterproof mortar.
5. The seal between a metal sheet and a barrier geomembrane according to claim 1, characterized in that: The sidewalls of the second metal plate (4) near the first metal plate (2) are coated with sealant (13), and the sealant (13) is evenly adhered to the surface of the first impermeable geomembrane (5).
6. A seal between a metal sheet and a barrier geotextile according to claim 3, characterized in that: The inner sidewall of the first groove (7) is provided with a third groove (12), which is rectangular and penetrates the first metal plate (2) for filling with sealant (14).