CN205314058U - Geomembrane anchor structure - Google Patents
Geomembrane anchor structure Download PDFInfo
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- CN205314058U CN205314058U CN201620075831.XU CN201620075831U CN205314058U CN 205314058 U CN205314058 U CN 205314058U CN 201620075831 U CN201620075831 U CN 201620075831U CN 205314058 U CN205314058 U CN 205314058U
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Abstract
The utility model discloses a geomembrane anchor structure, geomembrane anchor structure includes first phase concrete body (1), elasticity stagnant water backing plate (7), geomembrane (3) and fastener (4), elasticity stagnant water backing plate (7) lay in first phase concrete body (1) on the surface, some of geomembrane (3) lay in on the surface of elasticity stagnant water backing plate (7), fastener (4) will geomembrane (3) and elasticity stagnant water backing plate (7) compress tightly in on first phase concrete body (1). The utility model discloses utilize the elasticity of elasticity stagnant water backing plate, make geomembrane and elasticity stagnant water backing plate, first phase concrete body closely laminate to can prevent the seepage of outside water effectively. This technical scheme has not only guaranteed the fastness and the durability of anchor structure, and the stagnant water leak protection of anchor structure moreover is respond well to ensure that the prevention of seepage system plays a role effectively.
Description
Technical Field
The utility model relates to a water conservancy construction field specifically, relates to a geomembrane anchor structure.
Background
Geomembranes are commonly used impermeable materials in water conservancy and municipal engineering at present, and are generally paved at the bottom and the side slope of a pool or a lake to prevent water body leakage. The geomembrane needs to be fixed at the top of the geomembrane laying or the part connected with the building so as to ensure the sealing property of the anti-seepage system and the firmness of the geomembrane.
At present, the commonly used anchoring methods are mainly groove anchoring, nail shooting anchoring and expansion bolt anchoring. The groove anchoring is generally used for anchoring a geomembrane on the slope surface of a pool or a lake, and generally, an anchoring ditch with the width of 0.3m and the depth of 0.5m is dug at the top of the slope, then the geomembrane is embedded in the anchoring ditch, and finally concrete or backfill soil is poured in the anchoring ditch to press the geomembrane. The nail-shooting anchoring is generally used for the geomembrane anchoring of a wall surface, and generally, a nail-shooting gun is adopted to anchor the geomembrane on the inner side of a concrete wall surface or a brick wall so as to firmly connect the geomembrane with the wall surface. The expansion bolt anchoring is similar to the nail-shooting anchoring, and is mainly used for anchoring connection of a geomembrane and a concrete structural surface.
Through investigation on the use effect of various anchoring methods, the anchoring methods have defects of different degrees. For example, the channel anchoring firmness is poor, and the geomembrane is easy to loosen; and water leakage is easy to occur at the anchoring part by the shooting nail anchoring and the expansion bolt anchoring. In addition, the shooting nail and the expansion bolt are soaked in water for a long time, so that corrosion and damage are easy to occur, and the durability of the anchoring structure is influenced.
In view of the above-mentioned shortcomings of the prior art, there is a need to provide a new type of geomembrane anchoring structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an effectual geomembrane anchor structure of stagnant water leak protection.
In order to achieve the above object, the utility model provides a geomembrane anchor structure, this geomembrane anchor structure include first stage concrete body, elasticity stagnant water backing plate, geomembrane and fastener, elasticity stagnant water backing plate is laid first stage concrete body on the surface, some laying of geomembrane are in on the surface of elasticity stagnant water backing plate, the fastener will the geomembrane and elasticity stagnant water backing plate compress tightly in on the first stage concrete body.
Preferably, the elastic water stop backing plate is adhered to the surface of the primary concrete body through an adhesive glue.
Preferably, the adhesive glue is neoprene glue or epoxy glue.
Preferably, part of the surface of the primary concrete body is a polished surface, and the elastic water stop backing plate is adhered to the polished surface.
Preferably, the elastic water stop backing plate is a rubber backing plate or a sponge water stop plate.
Preferably, the geomembrane anchoring structure further comprises a pressing strip arranged on the outer surface of the geomembrane, and the pressing strip, the geomembrane and the elastic water stop backing plate are pressed tightly on the primary concrete body by the fastener.
Preferably, the fastener includes pre-buried in the internal expansion bolts of first stage concrete and can with the nut that expansion bolts matches, expansion bolts passes the layering, geomembrane and elasticity sealing up backing plate, the layering, geomembrane and elasticity sealing up backing plate pass through the nut compresses tightly in first stage concrete body.
Preferably, the geomembrane anchoring structure further includes a secondary concrete body cast in place on the primary concrete body such that the secondary concrete body covers the fastening member and the geomembrane.
Preferably, the surface of the primary concrete body, which is joined with the secondary concrete body, is a roughened surface.
According to the technical scheme, the fastener compresses the geomembrane and the elastic water stop backing plate on the first-stage concrete body, and the geomembrane, the elastic water stop backing plate and the first-stage concrete body are tightly attached by utilizing the elasticity of the elastic water stop backing plate, so that the leakage of an external water body can be effectively prevented. The technical scheme of the utility model not only guaranteed the fastness and the durability of anchor structure, the stagnant water leak protection effect of anchor structure is also obviously superior to prior art moreover to ensure that the prevention of seepage system acts on effectively.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a structural view of the geomembrane anchoring structure of the present invention;
fig. 2 is a partial enlarged view of the geomembrane anchoring structure of the present invention;
fig. 3 is a flow chart of the geomembrane anchoring method of the present invention.
Wherein,
1 first stage concrete body and 2 second stage concrete body
3 geomembrane 4 fastener
5 polished surface, 6 roughened surface
7 elastic water stop backing plate 8 adhesive
9 pressing bar 41 expansion bolt
42 nut
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The utility model provides a geomembrane anchor structure, as shown in fig. 1 and fig. 2, this geomembrane anchor structure includes first stage concrete body 1, elasticity stagnant water backing plate 7, geomembrane 3 and fastener 4, and elasticity stagnant water backing plate 7 is laid on first stage concrete body 1 on the surface, and on elasticity stagnant water backing plate 7's surface was laid to part of geomembrane 3, fastener 4 compressed tightly geomembrane 3 and elasticity stagnant water backing plate 7 on first stage concrete body 1. It should be noted that the inner surface of each component refers to a surface that is in contact with the primary concrete body 1 or is close to the primary concrete body 1, and the outer surface appearing herein refers to a side surface facing away from the inner surface. The utility model discloses utilize elasticity (flexibility) of elasticity stagnant water backing plate 7, make geomembrane 3 closely laminate with elasticity stagnant water backing plate 7, first stage concrete body 1 to can prevent the seepage of outside water effectively. The technical scheme of the utility model not only guaranteed the fastness and the durability of anchor structure, the stagnant water leak protection of anchor structure is respond well moreover to ensure that the prevention of seepage system acts on effectively.
As a preferred embodiment, the elastic water stop pad 7 is adhered to the surface of the primary concrete body 1 by an adhesive glue 8. The elastic water-stopping base plate 7 is bonded with the surface of the first-stage concrete body 1 and then is pressed tightly by the fastening piece 4, so that the water-stopping and leakage-preventing effects of the anchoring structure can be further improved. The adhesive glue 8 is preferably neoprene glue or epoxy glue. The main component of the neoprene is synthetic chloroprene rubber, which has the characteristics of wide application range, large initial adhesion, high bonding strength, oil resistance, water resistance, alkali resistance, acid resistance, solvent resistance and the like. The epoxy resin adhesive generally refers to an adhesive prepared by taking epoxy resin as a main body, generally comprises an epoxy resin curing agent, and has the characteristics of water resistance, oil resistance, strong acid and alkali resistance and the like. It should be noted that other adhesive glues that can adhere the elastic water stop mat 7 to the surface of the primary concrete body 1 are also possible.
Furthermore, part of the surface of the primary concrete body 1 is a polished surface 5, the elastic water stop backing plate 7 is adhered to the polished surface 5, and the surface of the polished surface 5 is flat, so that the elastic water stop backing plate 7 can be tightly attached to the primary concrete body 1. In addition, the part of the primary concrete body 1, which is in contact with the geomembrane 3, is also a polished surface, so that the geomembrane 3 can be prevented from being damaged by burrs possibly existing on the surface of the primary concrete body 1. The formation of the polishing surface 5 on the first-stage concrete body 1 may be performed in various ways, for example, when the first-stage concrete body 1 is poured, the first-stage concrete body 1 is not solidified, the anchoring position is finely polished by a highly precise leveling tool, or after the first-stage concrete body 1 is solidified, the anchoring position is polished by a polishing tool, and so on.
In the present embodiment, the elastic water stop pad 7 is preferably a rubber pad or a sponge water stop plate. The rubber cushion plate is a sheet product which is prepared by vulcanizing rubber as a main material and has a certain thickness and a large area, and the rubber cushion plate can perform certain elastic deformation and has waterproof performance. The sponge water-stop plate (namely, the water-stop sponge) mainly comprises polyester and polyether, can elastically deform and has good waterproof performance. In addition, the thickness of the elastic water stop pad 7 in the present embodiment is approximately 5mm to 15mm so that the elastic water stop pad 7 has a sufficient elastic deformation margin. It is noted that other resilient water stop mats are possible that are resiliently deformable and have water-resistant properties.
As a preferred embodiment, as shown in fig. 2, the geomembrane anchoring structure further includes a pressing strip 9 disposed on the outer surface of the geomembrane 3, and the fastener 4 presses the pressing strip 9, the geomembrane 3, and the elastic water stop pad 7 against the primary concrete body 1. The pressing strip 9 is a long strip-shaped steel plate with the thickness of 5mm, and the fastening force of the plurality of fastening pieces 4 distributed in a dotted manner is uniformly dispersed to the whole position to be anchored by the pressing strip 9, so that the linear fixation of the position to be anchored of the geomembrane 3 is realized, and the reliability of anchoring connection is further improved.
Wherein, the fastener 4 in the utility model can be a screw thread fastener, a nail or a clamping piece, etc. In the embodiment, the fastener 4 is preferably a threaded fastener, and includes an expansion bolt 41 pre-embedded in the primary concrete body 1 and a nut 42 capable of matching with the expansion bolt 41, the expansion bolt 41 passes through the pressing strip 9, the geomembrane 3 and the elastic water stop cushion plate 7, and the pressing strip 9, the geomembrane 3 and the elastic water stop cushion plate 7 are pressed on the primary concrete body 1 through the nut 42, so as to ensure the anti-seepage performance of the anchoring structure. Wherein, the distance between the adjacent expansion bolts 41 is not more than 25 cm, the fastening force held by each threaded fastener is uniformly dispersed to the whole position to be anchored through the layering 9, thereby forming a stable and reliable anti-seepage system.
Further, as shown in fig. 1, the geomembrane anchoring structure further includes a secondary concrete body 2 cast in place on the primary concrete body 1 such that the secondary concrete body 2 covers the fastening member 4 and the geomembrane 3. The post-cast second-stage concrete body 2 covers the whole anchoring position of the geomembrane 3, so that the corrosion failure of structures such as the expansion bolts 41, the nuts 42 and the pressing strips 9 can be prevented, the whole anchoring structure is protected and reinforced, and the safety of the whole anti-seepage system is ensured.
In addition, in order to ensure the reliable joint of the first-stage concrete body 1 and the second-stage concrete body 2, the surface of the first-stage concrete body 1, which is jointed with the second-stage concrete body 2, is formed into a scabbed surface 6, so that the contact area between the first-stage concrete body 1 and the second-stage concrete body 2 is increased. The roughened surface 6 is formed by regular or irregular concave-convex lines on the surface of concrete so as to increase the roughness of the surface of the concrete and provide a larger contact surface area for later poured concrete, thereby improving the joint reliability between the two types of concrete.
Further, as shown in fig. 3, the present invention also provides a geomembrane anchoring method, which comprises the following steps:
s1, pouring a first-stage concrete body 1;
s2, laying an elastic water stop backing plate 7 on the surface of the primary concrete body 1;
s3, laying the geomembrane 3 on the outer surface of the elastic water stop backing plate 7;
and S4, pressing the geomembrane 3 and the elastic water stop backing plate 7 on the primary concrete body 1 by using the fasteners 4.
The utility model discloses utilize elasticity (flexibility) of elasticity stagnant water backing plate 7, make geomembrane 3 closely laminate with elasticity stagnant water backing plate 7, first stage concrete body 1 to can prevent the seepage of outside water effectively. The technical scheme of the utility model not only guaranteed the fastness and the durability of anchor structure, the stagnant water leak protection of anchor structure is respond well moreover to ensure that the prevention of seepage system acts on effectively. In a preferred embodiment, in step S2, a part of the surface of the primary concrete body 1 is first flattened to form a polished surface 5, and then the elastic water-stop pad 7 is bonded to the polished surface 5 of the primary concrete body 1 by the adhesive 8, so as to improve the anti-seepage performance of the anchoring structure.
Wherein, step S3 further includes providing a bead 9 on the outer surface of the geomembrane 3; in step S4, the pressing strip 9, the geomembrane 3, and the elastic water stop pad 7 are pressed against the primary concrete body 1 with the fastener 4. The fastening force of the plurality of fastening pieces 4 distributed in a dotted manner is uniformly dispersed to the whole position to be anchored by the pressing strip 9, so that the linear fixation of the position to be anchored of the geomembrane 3 is realized, and the reliability of anchoring connection is further improved.
In addition, the geomembrane anchoring method further includes a step S4 of casting a secondary concrete body 2 on the primary concrete body 1 in situ in step S4 so that the secondary concrete body 2 covers the fastener 4 and the geomembrane 3. The post-cast second-stage concrete body 2 covers the whole anchoring position of the geomembrane 3, so that the corrosion failure of structures such as the expansion bolts 41, the nuts 42 and the pressing strips 9 can be prevented, the whole anchoring structure is protected and reinforced, and the safety of the whole anti-seepage system is ensured.
The technical solution of the present invention is further explained by the application example of the geomembrane anchoring structure. In the project of the adjustment pond of the Reunion Chengchu of the project matched with the south Water and the North Condition of Beijing city, the bottom of the pond adopts the geomembrane for seepage prevention. The anchoring method is adopted between the geomembrane and the concrete retaining wall at the periphery of the adjusting tank. Specifically, the first-stage concrete body 1 is constructed and poured in advance, the position of the second-stage concrete body 2 is reserved and is not poured, expansion bolts 41 are embedded, and the distance between every two adjacent expansion bolts 41 is not more than 25 cm; then, polishing the partial surface of the first-stage concrete body 1 on which the geomembrane 3 needs to be laid so as to ensure the smoothness; adhering the rubber pad penetrating through the expansion bolt 41 to the surface of the primary concrete body 1 by adopting chloroprene rubber; then, the geomembrane 3 is placed above the rubber pad after passing through the expansion bolts 41; then, the pressing strip 9 with the thickness of 5mm penetrates through the expansion bolt 41 and presses the geomembrane 3, and finally the nut 42 is screwed down, so that the whole pressing strip 9 is uniformly pressed on the geomembrane 3; finally, the second stage concrete body 2 is poured again, and the whole anchoring structure is fixed in the concrete. The practical effect after use proves that the anchoring method has good water-stopping and seepage-proofing effects and firm and reliable connection, prevents the water body in the pool from leaking, and brings great economic benefit to the engineering.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (9)
1. Geomembrane anchor structure, its characterized in that, geomembrane anchor structure includes first stage concrete body (1), elasticity stagnant water backing plate (7), geomembrane (3) and fastener (4), elasticity stagnant water backing plate (7) are laid on the surface of first stage concrete body (1), partly laying of geomembrane (3) are in on the surface of elasticity stagnant water backing plate (7), fastener (4) will geomembrane (3) and elasticity stagnant water backing plate (7) compress tightly in on first stage concrete body (1).
2. Geomembrane anchoring structure according to claim 1, wherein said elastic water stop pad (7) is bonded to the surface of said primary concrete body (1) by means of an adhesive glue (8).
3. Geomembrane anchoring structure according to claim 2, characterized in that said adhesive glue (8) is a neoprene glue or an epoxy glue.
4. The geomembrane anchoring structure according to claim 2, wherein a part of the surface of said primary concrete body (1) is a polished surface (5), and said elastic water stop pad (7) is bonded to said polished surface (5).
5. The geomembrane anchoring structure according to claim 1, wherein said elastic water stopping pad plate (7) is a rubber pad plate or a sponge water stopping plate.
6. The geomembrane anchoring structure according to any one of claims 1 to 5, further comprising a bead (9) provided on an outer surface of said geomembrane (3), wherein said fastener (4) presses said bead (9), said geomembrane (3) and said elastic water stop pad (7) against said primary concrete body (1).
7. The geomembrane anchoring structure according to claim 6, wherein the fastener (4) comprises an expansion bolt (41) pre-embedded in the primary concrete body (1) and a nut (42) capable of being matched with the expansion bolt (41), the expansion bolt (41) penetrates through the pressing strip (9), the geomembrane (3) and the elastic water stop pad (7), and the pressing strip (9), the geomembrane (3) and the elastic water stop pad (7) are pressed against the primary concrete body (1) through the nut (42).
8. The geomembrane anchoring structure according to any one of claims 1 to 5, further comprising a secondary concrete body (2) cast in place on said primary concrete body (1) such that said secondary concrete body (2) covers said fastener (4) and said geomembrane (3).
9. Geomembrane anchoring structure according to claim 8, characterized in that the surface of the primary concrete body (1) which is joined to the secondary concrete body (2) is a roughened surface (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075831.XU CN205314058U (en) | 2016-01-26 | 2016-01-26 | Geomembrane anchor structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075831.XU CN205314058U (en) | 2016-01-26 | 2016-01-26 | Geomembrane anchor structure |
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| CN205314058U true CN205314058U (en) | 2016-06-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996093A (en) * | 2016-01-26 | 2017-08-01 | 北京市水利规划设计研究院 | Geomembrane anchor structure and anchoring process |
| CN116479827A (en) * | 2022-09-09 | 2023-07-25 | 水电水利规划设计总院 | Construction method of novel seepage-proofing structure for key part of high core wall rock-fill dam |
-
2016
- 2016-01-26 CN CN201620075831.XU patent/CN205314058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996093A (en) * | 2016-01-26 | 2017-08-01 | 北京市水利规划设计研究院 | Geomembrane anchor structure and anchoring process |
| CN116479827A (en) * | 2022-09-09 | 2023-07-25 | 水电水利规划设计总院 | Construction method of novel seepage-proofing structure for key part of high core wall rock-fill dam |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |