CN112900365A - Geomembrane and asphalt concrete panel horizontal sliding anti-seepage connecting structure - Google Patents
Geomembrane and asphalt concrete panel horizontal sliding anti-seepage connecting structure Download PDFInfo
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- CN112900365A CN112900365A CN202110096494.8A CN202110096494A CN112900365A CN 112900365 A CN112900365 A CN 112900365A CN 202110096494 A CN202110096494 A CN 202110096494A CN 112900365 A CN112900365 A CN 112900365A
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- geomembrane
- concrete panel
- asphalt concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a horizontal sliding anti-seepage connecting structure of a geomembrane and an asphalt concrete panel, and belongs to the field of hydraulic and hydroelectric engineering. According to the invention, the geomembrane and the asphalt concrete panel are lapped through the reinforced concrete connecting plate, the horizontal sliding plastic water stop material is arranged between the asphalt concrete panel and the reinforced concrete connecting plate, so that the anti-seepage joint can horizontally slide, and meanwhile, the contact part of the geomembrane and the reinforced concrete connecting plate is provided with the superfilling bulge, so that the clamp effect caused by local stress concentration of the geomembrane is reduced, and the anti-seepage reliability of the geomembrane lapping joint is ensured.
Description
Technical Field
The invention relates to the field of hydraulic and hydroelectric engineering, in particular to a horizontal sliding anti-seepage connecting structure of a geomembrane and an asphalt concrete panel.
Background
With the continuous promotion of ecological civilization construction in China, water problems of water resources, water ecology, water environment and the like are greatly improved, but the treatment of the problems of water resource utilization, sewage seepage prevention and the like is still the direction of continuous research. For some reservoirs with water resource shortage or smaller runoff, pumped storage power stations, refuse landfills and other projects, the seepage-proofing requirement is very high, and the seepage-proofing mode of a full-reservoir basin is usually considered. The permeability coefficient of the asphalt concrete panel and the geomembrane is generally less than 10-8cm/s is even smaller, and more projects in recent years adopt the forms of asphalt concrete panels and geomembranes for seepage prevention due to good seepage prevention performance.
For the engineering of seepage prevention by adopting the geomembrane at the bottom of the reservoir, the periphery is generally anchored on a fixed concrete structure, and when the seepage prevention is carried out by adopting the asphalt concrete panel at the periphery of the reservoir, the asphalt concrete panel is difficult to be used as an anchoring body of the geomembrane due to low strength, so that transitional joining treatment is required between the asphalt concrete panel and the geomembrane.
Although some folds are reserved in the geomembrane and the anchoring part in the conventional design, the folds are expected to have certain expansion and contraction to counteract the tensile strain of the geomembrane, under the action of water pressure, the geomembrane is tightly attached to the foundation surface, and the folds of the geomembrane can hardly extend, so that the aim of adapting to the deformation of the joint part is difficult to achieve. Therefore, the joint part of the geomembrane is often subjected to overlarge local deformation to generate a clamp effect, so that the geomembrane is locally pulled to crack to form a concentrated leakage channel, and the safety of the dam is affected.
Therefore, how to adopt certain engineering measures enables the connection structure of the geomembrane and the asphalt concrete panel to deform along the stress direction of the geomembrane, obviously reduces the clamp effect brought by concentrated stress, increases the reliability of a lap joint, and is an important technology in reservoir seepage-proofing engineering.
Disclosure of Invention
The technical problem to be solved by the invention patent is as follows: aiming at asphalt concrete panels and geomembrane anti-seepage bodies, the horizontal sliding anti-seepage connecting structure is safe, reliable, simple and easy in structure and convenient to construct.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a horizontal sliding anti-seepage connecting structure of a geomembrane and an asphalt concrete panel, which comprises:
an asphalt concrete panel;
the reinforced concrete connecting plate is positioned above the asphalt concrete panel, and a plastic water stop layer is densely covered between the reinforced concrete connecting plate and the asphalt concrete panel in a pressing manner, and the plastic water stop layer can promote the reinforced concrete connecting plate and the geomembrane to integrally slide along the horizontal direction relative to the asphalt concrete panel under the horizontal acting force;
the geomembrane is paved above the reinforced concrete connecting plate and is fixedly connected with one side edge of the reinforced concrete connecting plate by adopting an anchoring part, and the geomembrane at the anchoring part extends outwards and is adhered with the asphalt concrete panel;
and the cushion material is paved below the geomembrane, and is superfilled at the contact part of the cushion material and the reinforced concrete connecting plate to form a bulge, and the bulge enables the geomembrane at the contact part to be upwards bulged.
As a preferred technical scheme of the invention, plastic water-stop materials are densely filled in the enclosed space among the geomembrane, the reinforced concrete connecting plate anchoring edge and the asphalt concrete panel.
As a preferable technical scheme of the invention, the anchoring piece comprises angle steel arranged on the geomembrane and an expansion bolt which penetrates through the angle steel and the geomembrane and is embedded into the reinforced concrete connecting plate.
As a preferable technical scheme of the invention, the bulges are superfilled fine-grain materials or fine sand.
As a preferable technical scheme of the invention, the edge of the geomembrane is sealed by adopting an edge sealing agent.
As a preferable technical scheme of the invention, the plastic waterproof layer is a caulking sealing soft material.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the geomembrane is anchored on the reinforced concrete connecting plate through the expansion bolts and the stainless steel angle steel, so that the connection reliability of the geomembrane and the reinforced concrete connecting plate is ensured.
(2) The contact part of the geomembrane and the reinforced concrete connecting plate is provided with the superfilling bulge, and the bulge part is filled with fine-grained materials or fine sand which are used as foundation deformation reserved settlement after water storage of the reservoir, so that the tensile strain of the geomembrane at the part can be obviously reduced, and the durability of the geomembrane is improved.
(3) The concrete connecting plate is located on the upper portion of the asphalt concrete panel, a horizontal sliding plastic water stop layer is arranged between the concrete connecting plate and the asphalt concrete panel, and the geomembrane and reinforced concrete connecting plate anchoring integral structure has horizontal sliding capacity, can adapt to certain deformation, particularly horizontal deformation, and generally can reach more than 50 mm. The clamp effect generated by stress concentration at the overlapping part of the geomembrane can be reduced, and the risk of tearing and damaging the geomembrane is reduced.
(4) Plastic water stop materials are filled between the geomembrane bonding part and the anchoring part, and even if the sliding joint part deforms for a long time and the local water stop materials run off, the plastic water stop materials can be sufficiently supplemented, so that the long-term reliability and stability of the sliding joint are ensured.
In conclusion, the horizontal sliding anti-seepage structure is arranged at the contact part of the reinforced concrete connecting plate and the asphalt concrete panel, so that the connection between the geomembrane at the bottom of the reservoir and the peripheral concrete structure is not hard, and meanwhile, the superfilling bulge is arranged at the contact part of the geomembrane and the concrete connecting plate, so that the clamp effect caused by stress concentration of the geomembrane is reduced, and the seepage risk caused by the separation of the anti-seepage joint is reduced.
Drawings
FIG. 1 is a plan view of an embodiment of the present invention.
FIG. 2 is a representative cross-sectional view of an embodiment of the present invention.
Reference numerals: 1-a geomembrane; 2-asphalt concrete panels; 3-reinforced concrete connecting plates; 4-bedding material; 5-expansion bolts; 6-angle steel; 7-plastic water-stopping material; 8-edge sealing agent; 9-plastic water stopping layer; 10-bulging; 11-base surface or fill.
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 specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; 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 present patent.
The invention will be further described with reference to fig. 1-2 and the following examples, but the invention is not limited thereto.
As shown in fig. 1 to 2, the present embodiment is a horizontal slippage anti-seepage connection structure of geomembrane and asphalt concrete panel, which mainly comprises a geomembrane 1, an asphalt concrete panel 2, a reinforced concrete connection plate 3 and a plastic water stop layer 9. Wherein, bituminous concrete panel 2 is located on basic face or filling body 11, carries out the overlap joint through reinforced concrete connecting plate 3 between geomembrane 1 and bituminous concrete panel 2.
In the embodiment, the geomembrane 1 is anchored on one side edge of the reinforced concrete connecting plate 3 positioned on the bank through an anchoring part, wherein the anchoring part comprises expansion bolts 5 and stainless steel angle steel 6, and the arrangement distance of the expansion bolts 5 is 30-45 cm.
In the embodiment, a cushion material 4 is paved below the geomembrane 1 at the bottom of the reservoir, the contact part of the cushion material 4 and the reinforced concrete connecting plate 3 is superfilled to form a bulge 10, and the bulge 10 enables the geomembrane 1 at the contact part to bulge upwards so as to achieve the purpose of adapting to the deformation of the joint. Wherein, the height of the bulge 10 is selected according to the calculation result, generally 10 cm-30 cm is taken, and fine grain size materials or fine sand are filled.
In the embodiment, the reinforced concrete connecting plate 3 is located on the asphalt concrete panel 2, the thickness of the reinforced concrete connecting plate 3 is 40 cm-80 cm, the thickness of the asphalt concrete panel is 15 cm-25 cm, and a plastic water stopping layer 9 with a horizontal sliding function is arranged between the reinforced concrete connecting plate 3 and the asphalt concrete panel. The thickness of the plastic water stop layer 9 is 6 mm-10 mm, and the length of the plastic water stop layer is determined according to the allowable hydraulic gradient of the lapping part of the concrete and the asphalt concrete, which is not more than 15-30.
In this embodiment, the geomembrane 1 at the anchoring portion of the geomembrane 1 and the reinforced concrete connecting plate 3 extends to the asphalt concrete panel 2, and the geomembrane 1 is tightly bonded with the asphalt concrete panel 2. And plastic water stop 7 is filled between the anchoring part and the bonding part of the geomembrane, the filling thickness is in direct connection according to the thickness of the connecting plate, and the edge of the geomembrane is sealed by adopting an edge sealing agent 8.
The geomembrane and the asphalt concrete panel are lapped through the reinforced concrete connecting plate, the horizontal sliding plastic water stopping layer is arranged between the asphalt concrete panel and the reinforced concrete connecting plate, so that the anti-seepage joint can horizontally slide, and meanwhile, the contact part of the geomembrane and the reinforced concrete connecting plate is provided with the superfilling bulge, so that the clamp effect caused by local stress concentration of the geomembrane is reduced, and the anti-seepage reliability of the geomembrane lapping joint is ensured.
According to the description and the attached drawings, the horizontal sliding anti-seepage connecting structure of the geomembrane and the asphalt concrete panel is easy to manufacture or use by a person skilled in the art, and can generate the positive effects recorded by the invention.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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 (6)
1. The utility model provides a geomembrane and bituminous concrete panel horizontal migration prevention of seepage connection structure which characterized in that includes:
an asphalt concrete panel;
the reinforced concrete connecting plate is positioned above the asphalt concrete panel, and a plastic water stop layer is densely covered between the reinforced concrete connecting plate and the asphalt concrete panel in a pressing manner, and the plastic water stop layer can promote the reinforced concrete connecting plate and the geomembrane to integrally slide along the horizontal direction relative to the asphalt concrete panel under the horizontal acting force;
the geomembrane is paved above the reinforced concrete connecting plate and is fixedly connected with one side edge of the reinforced concrete connecting plate by adopting an anchoring part, and the geomembrane at the anchoring part extends outwards and is adhered with the asphalt concrete panel; and
and the cushion material is paved below the geomembrane, and is superfilled at the contact part of the cushion material and the reinforced concrete connecting plate to form a bulge, and the bulge enables the geomembrane at the contact part to be upwards bulged.
2. The geomembrane and asphalt concrete panel horizontal slippage anti-seepage connection structure according to claim 1, wherein: and plastic water stopping materials are densely filled in the enclosed space among the geomembrane, the reinforced concrete connecting plate anchoring edge and the asphalt concrete panel.
3. The geomembrane and asphalt concrete panel horizontal slippage anti-seepage connection structure according to claim 1, wherein: the anchoring piece comprises angle steel arranged on the geomembrane and an expansion bolt penetrating through the angle steel and the geomembrane and embedded into the reinforced concrete connecting plate.
4. The geomembrane and asphalt concrete panel horizontal slippage anti-seepage connection structure according to claim 1, wherein: the bulges are superfilled fine-grain materials or fine sand.
5. The geomembrane and asphalt concrete panel horizontal slippage anti-seepage connection structure according to claim 1, wherein: and sealing the edge of the geomembrane by using an edge sealing agent.
6. The geomembrane and asphalt concrete panel horizontal slippage anti-seepage connection structure according to claim 1, wherein: the plastic waterproof layer is a caulking sealing soft material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110096494.8A CN112900365B (en) | 2021-01-25 | 2021-01-25 | Geomembrane and asphalt concrete panel horizontal sliding anti-seepage connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110096494.8A CN112900365B (en) | 2021-01-25 | 2021-01-25 | Geomembrane and asphalt concrete panel horizontal sliding anti-seepage connecting structure |
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| CN112900365A true CN112900365A (en) | 2021-06-04 |
| CN112900365B CN112900365B (en) | 2022-06-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313504A1 (en) * | 1975-04-04 | 1976-12-31 | Pont A Mousson | APPLICATION OF A PROFILE TO THE WATERPROOFING OF A BODY PANEL |
| CN101319493A (en) * | 2007-04-04 | 2008-12-10 | 张明军 | Flexible material filling and pointing machine, and concrete deck joint method |
| CN101429757A (en) * | 2008-12-10 | 2009-05-13 | 河南国网宝泉抽水蓄能有限公司 | Construction method for asphalt concrete and clay soil anti-seepage connector and full anti-seepage dam basin |
| CN208762966U (en) * | 2018-07-25 | 2019-04-19 | 中国电建集团华东勘测设计研究院有限公司 | The connected structure of asphalt concrete face slab and geomembrane |
-
2021
- 2021-01-25 CN CN202110096494.8A patent/CN112900365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313504A1 (en) * | 1975-04-04 | 1976-12-31 | Pont A Mousson | APPLICATION OF A PROFILE TO THE WATERPROOFING OF A BODY PANEL |
| CN101319493A (en) * | 2007-04-04 | 2008-12-10 | 张明军 | Flexible material filling and pointing machine, and concrete deck joint method |
| CN101429757A (en) * | 2008-12-10 | 2009-05-13 | 河南国网宝泉抽水蓄能有限公司 | Construction method for asphalt concrete and clay soil anti-seepage connector and full anti-seepage dam basin |
| CN208762966U (en) * | 2018-07-25 | 2019-04-19 | 中国电建集团华东勘测设计研究院有限公司 | The connected structure of asphalt concrete face slab and geomembrane |
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| CN112900365B (en) | 2022-06-28 |
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