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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- geomembrane
- concrete body
- backing plate
- anchor structure
- stage concrete
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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 water conservancy construction field, specifically, it relates to a kind of geomembrane anchor structure.
Background technology
Geomembrane is impervious material conventional in current water conservancy, public works, is generally layed in bottom and the side slope in pond or lake, for preventing water body seepage. All need to be fixed by geomembrane at the top that geomembrane is laid or the position that is connected with buildings, to guarantee the closure of seepage prevention system and the firm of geomembrane.
At present, anchoring process mainly groove anchoring, nailing anchoring and the expansion bolt anchoring commonly used. Groove anchoring be generally used for pond or lake domatic on geomembrane anchoring, it is generally the anchoring groove first digging out a dark 0.5m of wide 0.3m at Po Ding, then being embedded in anchoring groove by geomembrane, finally casting concrete or backfill soil in anchoring groove, push down geomembrane. Nailing anchoring is generally used for the geomembrane anchoring of metope, and it is generally adopt ail gun, is anchored at by geomembrane on the inside of concrete wall surface or brick wall, makes it firmly to be connected with metope. Expansion bolt anchoring and nailing anchoring are similar, expansion bolt anchoring is mainly used for the anchor connection of geomembrane and concrete structure surface, and it generally before this in the position needing anchoring, buries expansion bolt in advance, then by geomembrane through, on bolt, finally adopting nut screwing clamping to fix.
By the investigation to various anchoring process result of use, all there is defect in various degree in above anchoring process. Such as, the stability of groove anchoring is poor, it is easy to occur that geomembrane loosens; And nailing anchoring and expansion bolt anchoring easily occur leaking at anchoring position. Further, nailing and expansion bolt are immersed in water for a long time, it is easy to corrosion and destruction occurs, affects the weather resistance of anchor structure.
Because the above-mentioned shortcoming of prior art, it is desirable to provide a kind of novel geomembrane anchor structure.
Practical novel content
The purpose of this utility model is to provide the geomembrane anchor structure of a kind of sealing good leak-proof effect.
In order to realize above-mentioned purpose, the utility model provides a kind of geomembrane anchor structure, this geomembrane anchor structure comprises fist stage concrete body, elastic waterstop backing plate, geomembrane and fastening piece, described elastic waterstop backing plate is layed on the surface of described fist stage concrete body, a part for described geomembrane is layed on the outside surface of described elastic waterstop backing plate, and described geomembrane and described elastic waterstop backing plate are pressed on described fist stage concrete body by described fastening piece.
Preferably, described elastic waterstop backing plate is adhered on the surface of described fist stage concrete body by adhesive glue.
Preferably, described adhesive glue is neoprene latex or epoxy resin glue.
Preferably, the part surface of described fist stage concrete body is polished face, and described elastic waterstop backing plate is adhered on described polished face.
Preferably, described elastic waterstop backing plate is rubber bearing or sponge sealing plate.
Preferably, described geomembrane anchor structure also comprises the press strip on the outside surface being arranged at described geomembrane, and described press strip, described geomembrane and described elastic waterstop backing plate are pressed on described fist stage concrete body by described fastening piece.
Preferably, described fastening piece comprises the expansion bolt being embedded in advance in described fist stage concrete body and the nut that can mate with described expansion bolt, described expansion bolt is through described press strip, described geomembrane and described elastic waterstop backing plate, and described press strip, described geomembrane and described elastic waterstop backing plate are pressed on described fist stage concrete body by described nut.
Preferably, described geomembrane anchor structure is also included in second stage concrete body cast-in-place on described fist stage concrete body, makes described second stage concrete body cover described fastening piece and described geomembrane.
Preferably, the surface engaged with described second stage concrete body of described fist stage concrete body is roughened surface.
In technique scheme, geomembrane and elastic waterstop backing plate are pressed on fist stage concrete body by fastening piece, utilize the elasticity of elastic waterstop backing plate, geomembrane and elastic waterstop backing plate, fist stage concrete body are fitted tightly such that it is able to effectively prevent the seepage of outside body of water. The technical solution of the utility model not only ensure that stability and the weather resistance of anchor structure, and the sealing leak preventing effect of anchor structure is also obviously better than prior art, to guarantee that seepage prevention system plays a role effectively.
Other feature and advantage of the present utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing be used to provide to of the present utility model it is further understood that and form the part of specification sheets, be used from explanation the utility model with embodiment one below, but do not form restriction of the present utility model. In the accompanying drawings:
Fig. 1 is the structure iron of geomembrane anchor structure of the present utility model;
Fig. 2 is the partial enlargement figure of geomembrane anchor structure of the present utility model;
Fig. 3 is the schema of geomembrane anchoring process of the present utility model.
Wherein,
1 fist stage concrete body 2 second stage concrete body
3 geomembrane 4 fastening pieces
5 polished face 6 roughened surfaces
7 elastic waterstop backing plate 8 adhesive glues
9 press strip 41 expansion bolts
42 nuts
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail. Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
The utility model provides a kind of geomembrane anchor structure, as depicted in figs. 1 and 2, this geomembrane anchor structure comprises fist stage concrete body 1, elastic waterstop backing plate 7, geomembrane 3 and fastening piece 4, elastic waterstop backing plate 7 is layed on the surface of fist stage concrete body 1, a part for geomembrane 3 is layed on the outside surface of elastic waterstop backing plate 7, and geomembrane 3 and elastic waterstop backing plate 7 are pressed on fist stage concrete body 1 by fastening piece 4. It should be noted that, the internal surface of each parts refers to and contacts with fist stage concrete body 1 or near the one side of fist stage concrete body 1, and the outside surface occurred in literary composition is the side back to internal surface. The utility model utilizes the elasticity (flexibility) of elastic waterstop backing plate 7, geomembrane 3 and elastic waterstop backing plate 7, fist stage concrete body 1 is fitted tightly such that it is able to effectively prevent the seepage of outside body of water. The technical solution of the utility model not only ensure that stability and the weather resistance of anchor structure, and the sealing leak preventing effect of anchor structure is good, to guarantee that seepage prevention system plays a role effectively.
As one preferred embodiment, elastic waterstop backing plate 7 is adhered on the surface of fist stage concrete body 1 by adhesive glue 8. Elastic waterstop backing plate 7 is surperficial bonding with fist stage concrete body 1, then fastener 4 compresses such that it is able to promote the sealing leak preventing effect of anchor structure further. Wherein, adhesive glue 8 is preferably neoprene latex or epoxy resin glue. The main component of neoprene latex is synthetic chloroprene rubber, its applied range, have that just glutinous power is big, cohesive strength height, oil resistant, the feature such as water-fast, alkaline-resisting, acidproof, solvent resistant. Epoxy resin glue generally refers to the adhesive glue obtained by based on epoxy resin, and it generally also comprises epoxy curing agent, has the features such as waterproof, oil resistant, strong alkali-acid resistance. It is noted that the adhesive glue that elastic waterstop backing plate 7 is adhered on the surface of fist stage concrete body 1 can be also feasible by other.
Further, the part surface of fist stage concrete body 1 is polished face 5, and elastic waterstop backing plate 7 is adhered on polished face 5, polished face 5 surfacing, so that elastic waterstop backing plate 7 can fit tightly with fist stage concrete body 1. In addition, part fist stage concrete body 1 contacted with geomembrane 3 is also polished face such that it is able to prevent the burr that may exist on the surface of fist stage concrete body 1 from geomembrane 3 is caused damage. Wherein, on fist stage concrete body 1, the formation of polished face 5 can have multiple mode, such as, when building fist stage concrete body 1, when fist stage concrete body 1 does not also solidify, the instrument that strikes off adopting precision higher is treated anchorage point and is carried out striking off meticulously, or, after fist stage concrete body 1 solidifies, adopt polishing instrument to treat anchorage point and polish, etc.
Wherein, in the present embodiment, elastic waterstop backing plate 7 is preferably rubber bearing or sponge sealing plate. Rubber bearing is take rubber as the material of main part flaked product with certain thickness and larger area obtained through sulfuration, and rubber bearing can carry out certain elasticity distortion and have water resistance. Sponge sealing plate (i.e. sealing sponge) mainly comprises polyester and polyethers, it is possible to elasticity is out of shape and is had good water resistance. In addition, the thickness of elastic waterstop backing plate 7 is approximately 5mm to 15mm in the present embodiment, so that elastic waterstop backing plate 7 has enough elasticity distortion surpluses. It is noted that other can elasticity distortion and the elastic waterstop backing plate with water resistance also be feasible.
As one preferred embodiment, as shown in Figure 2, geomembrane anchor structure also comprises the press strip 9 on the outside surface being arranged at geomembrane 3, and press strip 9, geomembrane 3 and elastic waterstop backing plate 7 are pressed on fist stage concrete body 1 by fastening piece 4. Wherein, press strip 9 is the elongate steel plate of thickness 5 millimeters, the fastening force that multiple fastening pieces 4 of spot distribution are held evenly is distributed to by press strip 9 whole to be treated on anchorage point, thus achieves and geomembrane 3 is treated the linear fixing of anchorage point, further increases the reliability of anchor connection.
Wherein, the fastening piece 4 in the utility model can be threaded fastener, nail or clamping part etc. And fastening piece 4 is preferably threaded fastener in the present embodiment, it comprises the expansion bolt 41 being embedded in advance in fist stage concrete body 1 and the nut 42 that can mate with expansion bolt 41, expansion bolt 41 is through press strip 9, geomembrane 3 and elastic waterstop backing plate 7, press strip 9, geomembrane 3 and elastic waterstop backing plate 7 are pressed on fist stage concrete body 1 by nut 42, to ensure the barrier performance of anchor structure. Wherein, the adjacent spacing between expansion bolt 41 is not more than 25 centimetres, and the fastening force that each threaded fastener is held evenly is distributed to by press strip 9 whole to be treated on anchorage point, thus forms stable seepage prevention system reliably again.
Further, as shown in Figure 1, geomembrane anchor structure is also included in second stage concrete body 2 cast-in-place on fist stage concrete body 1, makes second stage concrete body 2 cover fastening piece 4 and geomembrane 3. The second stage concrete body 2 of after-pouring covers the whole anchorage point of geomembrane 3; it is thus possible to the corrosion preventing the structures such as expansion bolt 41, nut 42 and press strip 9 was lost efficacy; whole anchor structure is protected and strengthens, it is ensured that the safety of whole seepage prevention system.
In addition, in order to ensure that fist stage concrete body 1 and second stage concrete body 2 carry out positive engagement, the surface engaged with second stage concrete body 2 of fist stage concrete body 1 is formed as roughened surface 6, with the contact area increased between fist stage concrete body 1 and second stage concrete body 2. Wherein, roughened surface 6 refers to that concrete surface is formed with rule or irregular concave convex texture, and to increase the roughness of concrete surface, and the concrete for building afterwards provides bigger contact surface area, thus promotes the joint reliability between two kinds of concrete.
Further, as shown in Figure 3, the utility model also provides a kind of geomembrane anchoring process, and it comprises the steps:
S1, build fist stage concrete body 1;
S2, on the surface of fist stage concrete body 1, lay elastic waterstop backing plate 7;
S3, on the outside surface of elastic waterstop backing plate 7, lay geomembrane 3;
S4, with fastening piece 4, geomembrane 3 and elastic waterstop backing plate 7 are pressed on fist stage concrete body 1.
The utility model utilizes the elasticity (flexibility) of elastic waterstop backing plate 7, geomembrane 3 and elastic waterstop backing plate 7, fist stage concrete body 1 is fitted tightly such that it is able to effectively prevent the seepage of outside body of water. The technical solution of the utility model not only ensure that stability and the weather resistance of anchor structure, and the sealing leak preventing effect of anchor structure is good, to guarantee that seepage prevention system plays a role effectively. And as one preferred embodiment, first the part surface of fist stage concrete body 1 is carried out smooth process formation polished face 5 in step s 2, by adhesive glue 8, elastic waterstop backing plate 7 is adhered on the polished face 5 of fist stage concrete body 1 again, to promote the barrier performance of anchor structure.
Wherein, also it is included on the outside surface of geomembrane 3 in step s3 and press strip 9 is set; In step s 4 which, with fastening piece 4, press strip 9, geomembrane 3 and elastic waterstop backing plate 7 are pressed on fist stage concrete body 1. The fastening force that multiple fastening pieces 4 of spot distribution are held evenly is distributed to by press strip 9 whole to be treated on anchorage point, thus achieves and geomembrane 3 is treated the linear fixing of anchorage point, further increases the reliability of anchor connection.
In addition, geomembrane anchoring process also comprises step S4, and step S4 is cast-in-place second stage concrete body 2 on fist stage concrete body 1, makes second stage concrete body 2 cover fastening piece 4 and geomembrane 3. The second stage concrete body 2 of after-pouring covers the whole anchorage point of geomembrane 3; it is thus possible to the corrosion preventing the structures such as expansion bolt 41, nut 42 and press strip 9 was lost efficacy; whole anchor structure is protected and strengthens, it is ensured that the safety of whole seepage prevention system.
Below by way of the application example of geomembrane anchor structure, the technical solution of the utility model is further described. In the south water to north matching construction Tuan Cheng lake equalizing tank engineering of Beijing, at the bottom of pond, have employed geomembrane anti-seepage. This kind of anchoring process is have employed between the concrete barricade of geomembrane and equalizing tank periphery. Being specially, in advance construction casting fist stage concrete body 1, the position of reserved second stage concrete body 2 is not built, and buries expansion bolt 41 underground, and the spacing of adjacent expansion bolt 41 is not more than 25 centimetres; Then, to needing the part surface laying the fist stage concrete body 1 of geomembrane 3 to polish, to guarantee smooth property; Adopt neoprene latex that the rubber bearing after expansion bolt 41 is bonded on the surface of fist stage concrete body 1; Then, geomembrane 3 is made to be placed on above rubber bearing through expansion bolt 41; Then, the press strip 9 that thickness is 5 millimeters through expansion bolt 41 and pushes down geomembrane 3, last fastening nut 42, makes whole press strip 9 evenly be pressed on geomembrane 3; Finally, then build second stage concrete body 2, whole anchor structure is fixed in concrete. Actual effect after using proves, this kind of anchoring process sealing good seepage-proof property, firm and reliable connection, prevents pool inner water body seepage, bring huge economic benefit to engineering.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the detail that the utility model is not limited in above-mentioned enforcement mode; within the scope of technical conceive of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each the concrete technology feature described in above-mentioned embodiment, when not contradiction, it is possible to combined by any suitable mode. In order to avoid unnecessary repetition, various possible array mode is illustrated by the utility model no longer separately.
In addition, can also carrying out arbitrary combination between various different enforcement mode of the present utility model, as long as it does not run counter to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. geomembrane anchor structure, it is characterized in that, described geomembrane anchor structure comprises fist stage concrete body (1), elastic waterstop backing plate (7), geomembrane (3) and fastening piece (4), described elastic waterstop backing plate (7) is layed on the surface of described fist stage concrete body (1), a part for described geomembrane (3) is layed on the outside surface of described elastic waterstop backing plate (7), and described geomembrane (3) and described elastic waterstop backing plate (7) are pressed on described fist stage concrete body (1) by described fastening piece (4).
2. geomembrane anchor structure according to claim 1, it is characterised in that, described elastic waterstop backing plate (7) is adhered on the surface of described fist stage concrete body (1) by adhesive glue (8).
3. geomembrane anchor structure according to claim 2, it is characterised in that, described adhesive glue (8) is neoprene latex or epoxy resin glue.
4. geomembrane anchor structure according to claim 2, it is characterized in that, the part surface of described fist stage concrete body (1) is polished face (5), and described elastic waterstop backing plate (7) is adhered on described polished face (5).
5. geomembrane anchor structure according to claim 1, it is characterised in that, described elastic waterstop backing plate (7) is rubber bearing or sponge sealing plate.
6. according to geomembrane anchor structure described in any one in claim 1-5, it is characterized in that, described geomembrane anchor structure also comprises the press strip (9) on the outside surface being arranged at described geomembrane (3), and described press strip (9), described geomembrane (3) and described elastic waterstop backing plate (7) are pressed on described fist stage concrete body (1) by described fastening piece (4).
7. geomembrane anchor structure according to claim 6, it is characterized in that, described fastening piece (4) comprises the expansion bolt (41) being embedded in advance in described fist stage concrete body (1) and the nut (42) that can mate with described expansion bolt (41), described expansion bolt (41) is through described press strip (9), described geomembrane (3) and described elastic waterstop backing plate (7), described press strip (9), described geomembrane (3) and described elastic waterstop backing plate (7) are pressed on described fist stage concrete body (1) by described nut (42).
8. according to geomembrane anchor structure described in any one in claim 1-5, it is characterized in that, described geomembrane anchor structure is also included in the upper cast-in-place second stage concrete body (2) of described fist stage concrete body (1), makes described second stage concrete body (2) cover described fastening piece (4) and described geomembrane (3).
9. geomembrane anchor structure according to claim 8, it is characterised in that, the surface engaged with described second stage concrete body (2) of described fist stage concrete body (1) is roughened surface (6).
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| CN201620075831.XU CN205314058U (en) | 2016-01-26 | 2016-01-26 | Geomembrane anchor structure |
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| CN201620075831.XU CN205314058U (en) | 2016-01-26 | 2016-01-26 | Geomembrane anchor structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Cited By (1)
| 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 |
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