CN216040990U - Geomembrane-asphalt concrete panel bonding seepage-proofing structure - Google Patents
Geomembrane-asphalt concrete panel bonding seepage-proofing structure Download PDFInfo
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- CN216040990U CN216040990U CN202121948819.2U CN202121948819U CN216040990U CN 216040990 U CN216040990 U CN 216040990U CN 202121948819 U CN202121948819 U CN 202121948819U CN 216040990 U CN216040990 U CN 216040990U
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- geomembrane
- asphalt concrete
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Abstract
The utility model provides a geomembrane-asphalt concrete panel bonding seepage-proofing structure which comprises an asphalt concrete seepage-proofing panel located on a filling body, wherein the asphalt concrete seepage-proofing panel is bonded with a geomembrane through a sealing and leveling connecting layer, and the connecting part of the edges of the geomembrane and the asphalt concrete seepage-proofing panel is sealed by adopting a sealing edge agent. The utility model realizes the reliable connection of two anti-seepage body structures of the geomembrane and the asphalt concrete panel, can adapt to an operation water head of 30m or less, and simultaneously ensures the reliable operation of the anti-seepage body structures.
Description
Technical Field
The utility model relates to the field of seepage-proofing treatment of reservoirs and dams in hydropower engineering, in particular to a geomembrane-asphalt concrete panel bonding seepage-proofing structure.
Background
Geomembrane and asphalt concrete are seepage-proofing materials which are widely applied in seepage-proofing projects of reservoirs, dams and the like. Because the intensity of the asphalt concrete is low, the seepage-proofing bodies such as geomembranes and the like are difficult to bear large mechanical anchoring force to be directly anchored on the asphalt concrete panel. When reservoirs and dams are of two or more impermeable types, a conventional connection scheme is to provide a concrete connection plate between the geomembrane and the asphalt concrete face plate. However, the three materials have large rigidity difference, so that the connecting structure has poor deformation adaptability; the structural connection is complicated, and under the reservoir running water head, the reliability is poor, and the leakage and other problems occur easily.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a geomembrane-asphalt concrete panel bonding anti-seepage structure. The utility model realizes the reliable connection of two anti-seepage body structures of the geomembrane and the asphalt concrete panel, can adapt to an operation water head of 30m or less, and simultaneously ensures the reliable operation of the anti-seepage body structures.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a geomembrane-asphalt concrete panel bonding seepage prevention structure which characterized in that: the anti-seepage asphalt concrete panel is located on a filling body, the anti-seepage asphalt concrete panel is bonded with a geomembrane through a sealing and leveling connecting layer, and the edge sealing agent is adopted for sealing the connecting part of the geomembrane and the edge of the anti-seepage asphalt concrete panel.
Further: the thickness of the asphalt concrete anti-seepage panel is 8-10 cm.
Further: the thickness of the sealing and leveling connecting layer is 3-6 mm, the width is 0.5-2 m, and the thickness of the geomembrane is 0.5-2.5 mm.
Further: the laying thickness of the sealing and leveling connecting layer is larger than that of the geomembrane.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the geomembrane is directly anchored and connected on the asphalt concrete anti-seepage panel, a concrete connecting plate is omitted, the connection anti-seepage structure is greatly simplified, and the uncoordinated deformation of the connection structure caused by too large difference of the rigidity of the materials of the geomembrane, the asphalt concrete and the reinforced concrete is avoided. Because geomembrane, asphalt concrete panel all belong to flexible material, rigidity difference is little, and this structure can better adapt to the foundation surface and warp. The utility model has simple construction and can ensure the construction quality.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Reference numerals: 1-asphalt concrete impermeable panel; 2-sealing and leveling the connecting layer; 3-geomembrane; 4-edge sealing agent; 5-filling body.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the utility model.
The utility model is further illustrated by the following figures and examples, which are not to be construed as limiting the utility model.
As shown in fig. 1, a geomembrane-asphalt concrete panel bonding seepage-proofing structure comprises an asphalt concrete seepage-proofing panel 1 located on a filling body 5, wherein the asphalt concrete seepage-proofing panel 1 is bonded with a geomembrane 3 through a sealing and leveling connecting layer 2, the sealing and leveling connecting layer 2 can be replaced by similar high-molecular polymer materials, the sealing and leveling connecting layer 2 is connected with the asphalt concrete seepage-proofing panel 1 and the geomembrane 3 by adopting a physical bonding process, and the connecting part of the geomembrane 3 and the edge of the asphalt concrete seepage-proofing panel 1 is sealed by using a sealing agent 4 so as to ensure the seepage-proofing capability of the edge of the membrane.
The thickness of the asphalt concrete anti-seepage panel 1 is 8-10 cm.
The laying thickness of the sealing and leveling connecting layer 2 is larger than that of the geomembrane 3, and the sealing and leveling connecting layer 2 is fully laid on the asphalt concrete anti-seepage panel 1. The sealing and leveling connecting layer 2 is used for not only pasting the geomembrane 3, but also sealing and leveling when the geomembrane 3 is laid.
The thickness of the sealing and leveling connecting layer 2 is 3-6 mm, the width of the sealing and leveling connecting layer is 0.5-2 m, the pasting width of the sealing and leveling connecting layer 2 is determined according to an engineering application water head, and the pasting width is determined according to the principle that the bearing hydraulic slope is not more than 15.
The thickness of the geomembrane 3 is 0.5-2.5 mm, and the geomembrane 3 is generally HDPE or PVC geomembrane.
The sealing and leveling connecting layer 2 is preferably a butyl raw rubber adhesive tape, the butyl raw rubber is a copolymer of isobutene and isoprene, the chemical stability and the thermal stability are good, the air tightness and the water tightness are most prominent, and the adhesive performance to asphalt-based materials is good.
The specific implementation steps of the geomembrane 3-asphalt concrete panel bonding anti-seepage structure are as follows:
pasting, sealing and leveling a connecting layer 2 at a designated position of the asphalt concrete panel; tearing off the protective film on one side, adhering the sealing and leveling connecting layer 2 to the surface of the asphalt concrete seepage-proofing panel 1, and reserving the protective film on the top surface of the sealing and leveling connecting layer 2; the joint of the sealing and leveling connecting layer 2 adopts a butt joint mode.
Laying a geomembrane 3, and adopting a welding process at the joint of the geomembrane 3; tearing off the protective film on the surface of the sealing and leveling connecting layer 2, and sticking the geomembrane 3 on the surface of the sealing and leveling connecting layer 2, wherein air needs to be evacuated in the sticking process; and finally, sealing the edge of the geomembrane 3 by using an elastic sealing agent 4.
An indoor 1:1 simulation test shows that under the action of 0.3MPa pressure (30 m water head), the connecting structure does not find abnormal conditions such as leakage, water seepage and the like, and the connecting structure can be fully suitable for the operation working conditions of a reservoir and a dam with a low water head.
According to the description and the drawings of the utility model, a geomembrane-asphalt concrete panel bonding anti-seepage structure can be easily manufactured or used by a person skilled in the art, and can generate the positive effects recorded by the utility model.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (4)
1. The utility model provides a geomembrane-asphalt concrete panel bonding seepage prevention structure which characterized in that: the anti-seepage asphalt concrete panel comprises an asphalt concrete anti-seepage panel (1) located on a filling body (5), wherein the asphalt concrete anti-seepage panel (1) is bonded with a geomembrane (3) through a sealing leveling connecting layer (2), and the edge sealing agent (4) is adopted to seal the connecting part of the geomembrane (3) and the edge of the asphalt concrete anti-seepage panel (1).
2. The geomembrane-asphalt concrete panel bonding seepage-proofing structure according to claim 1, wherein: the thickness of the asphalt concrete anti-seepage panel (1) is 8-10 cm.
3. The geomembrane-asphalt concrete panel bonding seepage-proofing structure according to claim 1, wherein: the thickness of the sealing and leveling connecting layer (2) is 3-6 mm, the width of the sealing and leveling connecting layer is 0.5-2 m, and the thickness of the geomembrane (3) is 0.5-2.5 mm.
4. The geomembrane-asphalt concrete panel bonding seepage-proofing structure according to claim 1, wherein: the laying thickness of the sealing and leveling connecting layer (2) is larger than that of the geomembrane (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121948819.2U CN216040990U (en) | 2021-08-18 | 2021-08-18 | Geomembrane-asphalt concrete panel bonding seepage-proofing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121948819.2U CN216040990U (en) | 2021-08-18 | 2021-08-18 | Geomembrane-asphalt concrete panel bonding seepage-proofing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216040990U true CN216040990U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121948819.2U Active CN216040990U (en) | 2021-08-18 | 2021-08-18 | Geomembrane-asphalt concrete panel bonding seepage-proofing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216040990U (en) |
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2021
- 2021-08-18 CN CN202121948819.2U patent/CN216040990U/en active Active
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