CN218880740U - Storehouse basin geomembrane and storehouse bank concrete panel connection seal structure - Google Patents
Storehouse basin geomembrane and storehouse bank concrete panel connection seal structure Download PDFInfo
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- CN218880740U CN218880740U CN202223453424.2U CN202223453424U CN218880740U CN 218880740 U CN218880740 U CN 218880740U CN 202223453424 U CN202223453424 U CN 202223453424U CN 218880740 U CN218880740 U CN 218880740U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to a hydraulic and hydroelectric engineering seepage prevention structure, in particular to a connection and sealing structure of a reservoir basin geomembrane and a reservoir bank concrete panel, which comprises a geomembrane (12) laid in a reservoir basin and a concrete panel (6) laid on a reservoir bank, wherein dentate bulges with different heights are uniformly distributed on the upper surface of the panel connecting end of the geomembrane, and the cross sectional area of the upper end of the dentate bulge is larger than that of the middle part; and a layer of sealing waterproof glue is smeared on the upper surface of the panel connecting end of the geomembrane, concrete is cast on the sealing waterproof glue to form the geomembrane connecting end of the concrete panel, and the dentate bulges on the upper surface of the panel connecting end of the geomembrane are embedded into the concrete, so that the geomembrane connecting end of the concrete panel is connected with the panel connecting end of the geomembrane into a whole through the sealing waterproof glue. The utility model discloses the atress performance is good, the stagnant water is effectual, the security performance is high, is particularly adapted to storehouse basin worker's membrane sealed with being connected of storehouse bank asphalt concrete panel.
Description
Technical Field
The utility model relates to a hydraulic and hydroelectric engineering seepage prevention structure, especially a storehouse basin geomembrane is connected seal structure with storehouse bank concrete panel.
Background
In the existing reservoir construction adopting the concrete panel rock-fill dam, the geomembrane is generally adopted for seepage prevention in a reservoir basin, the joint of the geomembrane and the concrete panel is a key part for seepage prevention stress, once seepage occurs, operation and maintenance are inconvenient, and the safety of the dam can be seriously endangered, so the problem of connection and sealing of the reservoir basin geomembrane and the concrete panel rock-fill dam must be solved.
The existing connection anchoring sealing of the geomembrane and the reinforced concrete panel usually adopts an embedded mode and a surface physical anchoring mode. The two modes are more in full-reservoir basin seepage-proofing use in hydraulic engineering (such as reservoirs) and hydroelectric engineering (such as pumped storage power stations). The common embedding method is that the geomembrane is directly embedded into concrete, and the geomembrane and the concrete are poured together to form an anchoring sealing structure; the surface physical anchoring type is to lay the geomembrane on the surface of the reinforced concrete, and then fix the geomembrane on the surface of the concrete by using a bolt for over-drilling such as a layering, a rubber gasket, a bolt and the like, thereby forming fixed seal. The prior art adopts an embedded type and a surface physical anchoring type for connection anchoring sealing, and has the following problems:
1. the geomembrane is buried in the concrete, so that firstly, a structural joint is formed, the strength of the concrete structure is weakened, and the stress on the concrete structure is not favorable; moreover, the contact surface of the concrete and the geomembrane is a weak surface under the water pressure, a leakage channel is often formed, and the seepage prevention is not favorable; secondly, the geomembrane embedded in the concrete is different from the geomembrane not embedded in the concrete in the occurrence environment, the aging speed is different, and the geomembrane is easy to damage near the interface.
2. The geomembrane is laid on the surface of the reinforced concrete, and the geomembrane is fixed on the surface of the concrete by bolts such as a layering, a rubber gasket and bolts through drilling, so that firstly, the panel can deform under the action of load, the layering between the bolts and the bolt cannot coordinate with the panel to deform, and gaps can be formed after the panel deforms to form a leakage channel, which is not good for seepage prevention; secondly, the geomembrane is punched into the concrete by the bolts, and leakage can be formed under the water pressure, so that the seepage prevention is not good; moreover, the bolt holes are punched into the panel structure, the whole row of arranged bolt holes damage the panel, and induced cracks are easily formed under the action of load to generate leakage or damage. It is impervious and has unfavorable structural stress.
In recent years, with the wide application of pumped storage power station construction, rock-fill dams are built on deep covering layers and soft rocks are adopted for building dams more and more, and asphalt concrete panels with stronger deformation adaptability are adopted to replace reinforced concrete panels to become basic choices under the conditions according to actual engineering requirements. However, asphalt concrete panels are generally small in thickness (generally not more than 20 cm), low in modulus and soft, and when the panels are anchored by bolts, the panels are pierced, and the spiral rings are easy to loosen and break, so that the seepage prevention and the structure are not good; if the concrete is directly poured by being buried in asphalt, because the thickness is small and the modulus is low, the panel is easy to break and generate leakage; the adhesive and other chemical connection modes are adopted, so that the adhesive for directly bonding two materials is not available at present, and the adhesive is easy to fall off underwater for a long time and unreliable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, be connected not enough of suitable connection structure to present asphalt concrete panel and geomembrane, the utility model provides a sealing structure is connected with storehouse bank concrete panel to the storehouse basin geomembrane that atress performance is good, the stagnant water is effectual, the security performance is high.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a sealing structure is connected with storehouse bank concrete panel to storehouse basin geomembrane, is including laying the geomembrane in the storehouse basin and laying the concrete panel at the storehouse bank, wherein:
the upper surface of the panel connecting end of the geomembrane is uniformly provided with dentate bulges with different heights, and the cross sectional area of the upper ends of the dentate bulges is larger than that of the middle part;
and a layer of sealing waterproof glue is smeared on the upper surface of the panel connecting end of the geomembrane, concrete is cast on the sealing waterproof glue to form the geomembrane connecting end of the concrete panel, and the dentate bulges on the upper surface of the panel connecting end of the geomembrane are embedded into the concrete, so that the geomembrane connecting end of the concrete panel is connected with the panel connecting end of the geomembrane into a whole through the sealing waterproof glue.
The utility model discloses a dentate arch highly different of panel connection end upper surface equipartition at the geomembrane, the bellied upper end cross-sectional area of dentate is greater than the middle part cross-sectional area to paint the direct concrete panel of pouring behind the waterproof sealant at the panel link of geomembrane, dentate arch through the barb form is connected geomembrane and concrete panel and is formed whole prevention of seepage system, geomembrane and concrete panel prevention of seepage stagnant water effect has been improved greatly, set up the geomembrane under the concrete panel simultaneously, make the geomembrane be in compression state, avoid pulling destruction, the atress performance and the prevention of seepage effect of geomembrane and concrete panel overall structure have been improved, the security of storehouse bank (dam) has been improved.
Preferably, the reservoir bank and the reservoir basin are built on bedrock.
Preferably, the bank is formed by a rock-fill dam, and comprises the concrete panel, a first bedding material, a first transition material, a drainage material and a rock-fill material which are sequentially paved from outside to inside.
Preferably, the geomembrane, the composite geotextile, the drainage net, the second bedding material, the second transition material and the backfill material are sequentially laid in the reservoir basin from top to bottom.
Preferably, the backfill material of the reservoir basin is connected with the first bedding material and the first transition material of the reservoir bank at the horizontal section of the reservoir basin, and the panel connecting end of the geomembrane is laid on the first bedding material at the horizontal section of the reservoir basin.
Preferably, the joint transition between the geomembrane and the concrete panel is sealed by asphalt mastic.
Preferably, the concrete panel is a reinforced concrete panel or an asphalt concrete panel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a dentate arch highly different of panel connection end upper surface equipartition at the geomembrane, the bellied upper end cross-sectional area of dentate is greater than the middle part cross-sectional area, and paint the direct concrete panel of pouring behind the waterproof sealant at the panel link of geomembrane, it is sealed to adopt pitch mastic in geomembrane and concrete panel's transition department of being connected, thereby the dentate arch and the pitch mastic through the barb form are connected geomembrane and concrete panel and are formed whole prevention of seepage system, the prevention of seepage stagnant water effect of geomembrane and concrete panel has been improved greatly, set up the geomembrane under concrete panel simultaneously, make the geomembrane be in compression state, avoid pulling the destruction, the atress performance and the prevention of seepage effect of geomembrane and concrete panel overall structure have been improved, the security of storehouse bank (dam) has been improved.
2. The utility model discloses adopt the geomembrane prevention of seepage at the storehouse basin, adopt the concrete panel prevention of seepage at the storehouse bank, the construction of geomembrane and the construction mutual noninterference of concrete panel, construction convenience has improved the efficiency of construction.
3. The utility model discloses avoided embedding geomembrane in the concrete panel, perhaps at the concrete panel surface anchor geomembrane that punches, improved the prevention of seepage effect and the security of structure, reduced engineering operation maintenance cost, had better engineering benefit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model discloses storehouse basin geomembrane and storehouse bank concrete panel connection seal structure's section view.
Fig. 2 is a sectional structure view of the panel connecting end of the geomembrane of the present invention.
Figure 3 is the utility model discloses the local enlargements of seal structure are connected to storehouse basin geomembrane and storehouse bank concrete panel.
In the figure: 1. bedrock; 2. stacking stones; 3. draining the materials; 4. a first transition material; 5. a first bedding material; 6. a panel; 7. backfilling; 8. a second transition material; 9. a second bedding material; 10. a drainage net; 11. a composite geotextile; 12. a geomembrane; 13. a tooth-shaped bulge; 14. a tooth-shaped bulge; 15. mastic asphalt.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
For convenience of description, the relative positional relationship of the components, such as: the descriptions of up, down, left, right, etc. are made with reference to the layout directions of the drawings in the specification, and do not limit the structure of the patent.
As shown in fig. 1-3, one embodiment of the sealing structure for connecting the membrane and the concrete panel of the bank basin of the present invention comprises a geomembrane 12 laid in the bank basin and a concrete panel 6 laid on the bank.
The bank is formed by a rock-fill dam and comprises a concrete panel 6, a first bedding material 5, a first transition material 4, a drainage material 3 and a rock-fill material 2 which are sequentially paved from outside to inside.
And the reservoir basin is internally and sequentially paved with a geomembrane 12, a composite geotextile 11, a drainage net 10, a second bedding material 9, a second transition material 8 and a backfill material 7 from top to bottom.
The reservoir bank and the reservoir basin are built on the bedrock 1.
The backfill material 7 of the reservoir basin is connected with the first bedding material 5 and the first transition material 4 of the reservoir bank at the horizontal section of the reservoir basin, and the panel connecting end of the geomembrane 12 is paved on the first bedding material 5 at the horizontal section of the reservoir basin.
The upper surfaces of the panel connecting ends of the geomembrane 12 are uniformly provided with dentations 13 and 14 with different heights, the cross sectional areas of the upper ends of the dentations 13 and 14 are larger than that of the middle parts, so that the dentations 13 and 14 form barb shapes.
A layer of sealing waterproof glue (not shown) is smeared on the upper surface of the panel connecting end of the geomembrane 12, concrete is cast on the sealing waterproof glue to form a geomembrane connecting end of the concrete panel 6, the tooth-shaped bulges on the upper surface of the panel connecting end of the geomembrane 12 are embedded into the concrete, and the connecting transition part of the geomembrane 12 and the concrete panel 6 is sealed by asphalt mastic 15, so that the geomembrane connecting end of the concrete panel 6 is connected with the panel connecting end of the geomembrane 12 through the sealing waterproof glue, the tooth-shaped bulges 13 and 14 and the asphalt mastic 15 to form an integral anti-seepage system.
The concrete panels 6 in the above embodiments are reinforced concrete panels or asphalt concrete panels.
The utility model discloses during the concrete implementation, can go on according to following step:
s1, paving a concrete panel 6, a first bedding material 5, a first transition material 4, a drainage material 3 and a rockfill material 2 in sequence from outside to inside on a bank;
s2, sequentially laying a geomembrane 12, a composite geotextile 11, a drainage network 10, a second bedding material 9, a second transition material 8 and a backfill material 7 in the storehouse basin from top to bottom;
s3, connecting the backfill material 7 of the reservoir basin with the first bedding material 5 and the first transition material 4 of the reservoir bank at the horizontal section of the reservoir basin, and laying the panel connecting end of the geomembrane 12 on the first bedding material 5 at the horizontal section of the reservoir basin;
s4, uniformly distributing toothed bulges 13 and 14 with different heights on the upper surface of the panel connecting end of the geomembrane 12, wherein the cross sectional area of the upper ends of the toothed bulges 13 and 14 is larger than that of the middle parts of the toothed bulges, so that the toothed bulges are in a barb shape;
s5, smearing a layer of sealing waterproof glue on the upper surface of the panel connecting end of the geomembrane 12, pouring concrete on the sealing waterproof glue to form the geomembrane connecting end of the concrete panel 6, embedding the toothed bulges 13 and 14 on the upper surface of the panel connecting end of the geomembrane 12 into the concrete to tightly anchor and seal the geomembrane 12 and the concrete panel 6 through the toothed bulges 13 and 14, sealing the connection transition part of the geomembrane 12 and the concrete panel 6 by using asphalt mastic 15 to prevent water from leaking downwards along the transition contact part of the geomembrane 12 and the concrete panel 6, and finally connecting the geomembrane connecting end of the concrete panel 6 with the panel connecting end of the geomembrane 12 through the sealing waterproof glue, the toothed bulges 13 and 14 and the asphalt mastic 15 to form an integral seepage-proofing system so as to ensure the integral water-stopping effect of the basin and the bank.
It is obvious that the above method steps are only an example, and it is obvious that a person skilled in the art can rearrange the above steps in order or perform partitioning simultaneously according to the field situation.
The utility model discloses well protruding 14 of cusp highly is greater than the height of the protruding 13 of cusp, and the cross sectional dimension of the protruding 14 of cusp is greater than the cross sectional dimension of the protruding 13 corresponding department of cusp, so pours into one whole through setting up the protruding 13 of the dentate of co-altitude, 14 and concrete panel 6, has avoided forming the light and weak area with high in concrete panel 6 when increasing the snap-in force.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modify the technical solution of the present invention into equivalent embodiments with equivalent variations without departing from the technical solution scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a storehouse basin geomembrane is connected seal structure with storehouse bank concrete panel, including laying geomembrane (12) in the storehouse basin and laying concrete panel (6) at the storehouse bank, its characterized in that:
tooth-shaped bulges with different heights are uniformly distributed on the upper surface of the panel connecting end of the geomembrane, and the cross sectional area of the upper end of each tooth-shaped bulge is larger than that of the middle part;
and a layer of sealing waterproof glue is smeared on the upper surface of the panel connecting end of the geomembrane, concrete is cast on the sealing waterproof glue to form the geomembrane connecting end of the concrete panel, and the dentate bulges on the upper surface of the panel connecting end of the geomembrane are embedded into the concrete, so that the geomembrane connecting end of the concrete panel is connected with the panel connecting end of the geomembrane into a whole through the sealing waterproof glue.
2. The storehouse basin geomembrane and storehouse bank concrete panel connection sealing structure according to claim 1, characterized in that the storehouse bank and the storehouse basin are built on bedrock (1).
3. The storehouse basin geomembrane and storehouse bank concrete panel connection sealing structure according to claim 1, characterized in that the storehouse bank is formed by a rock-fill dam, which comprises the concrete panel (6), the first bedding material (5), the first transition material (4), the drainage material (3) and the rock-fill material (2) laid in sequence from outside to inside.
4. The storehouse basin geomembrane and storehouse bank concrete panel connection sealing structure according to claim 3, wherein the geomembrane (12), the composite geotextile (11), the drainage net (10), the second bedding material (9), the second transition material (8) and the backfill material (7) are laid in the storehouse basin from top to bottom in sequence.
5. The storehouse basin geomembrane and storehouse bank concrete panel connection sealing structure of claim 4, wherein the backfill material of the storehouse basin is connected with the first bedding material and the first transition material of the storehouse bank at a storehouse basin horizontal section, and the panel connecting end of the geomembrane is laid on the first bedding material of the storehouse basin horizontal section.
6. The storehouse basin geomembrane and storehouse bank concrete panel connection sealing structure according to any one of claims 1 to 5, wherein the concrete panel is a reinforced concrete panel or an asphalt concrete panel.
7. The storehouse basin geomembrane and storehouse bank concrete panel connection sealing structure of any one of claims 2 to 5, characterized in that, the connection transition of the geomembrane and the concrete panel is sealed by asphalt mastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223453424.2U CN218880740U (en) | 2022-12-23 | 2022-12-23 | Storehouse basin geomembrane and storehouse bank concrete panel connection seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223453424.2U CN218880740U (en) | 2022-12-23 | 2022-12-23 | Storehouse basin geomembrane and storehouse bank concrete panel connection seal structure |
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| Publication Number | Publication Date |
|---|---|
| CN218880740U true CN218880740U (en) | 2023-04-18 |
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| CN202223453424.2U Active CN218880740U (en) | 2022-12-23 | 2022-12-23 | Storehouse basin geomembrane and storehouse bank concrete panel connection seal structure |
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|---|---|
| CN (1) | CN218880740U (en) |
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- 2022-12-23 CN CN202223453424.2U patent/CN218880740U/en active Active
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