CN214613893U

CN214613893U - Reservoir seepage-proofing dam

Info

Publication number: CN214613893U
Application number: CN202120766805.2U
Authority: CN
Inventors: 袁伟忠; 曹斐; 周连堂
Original assignee: Zhejiang Jianghe Construction Co ltd
Current assignee: Zhejiang Jianghe Construction Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-05
Anticipated expiration: 2031-04-14

Abstract

The application provides a pair of reservoir seepage control dykes and dams relates to the technical field of dykes and dams. The utility model provides a reservoir seepage control dyke, includes the base, its characterized in that, base upstream face one side is provided with the metalling, one side that the metalling deviates from the base is provided with the dolomite layer, one side that the dolomite layer deviates from the metalling is provided with impervious coefficient more than or equal to P10's first concrete layer, one side that first concrete layer deviates from the dolomite layer is provided with the geomembrane that is used for the prevention of seepage, the geomembrane deviates from first concrete one side and is provided with the second concrete layer that impervious coefficient is P12, the second concrete layer deviates from geomembrane one side and is provided with the compound material layer that is insoluble in water. Through setting up a plurality of layer structures on one side of the base upstream face for the dykes and dams have reduced the construction cost of dykes and dams when guaranteeing impervious performance.

Description

Reservoir seepage-proofing dam

Technical Field

The application relates to the technical field of dams, in particular to a reservoir seepage-proofing dam.

Background

Dam leakage is one of the common water conservancy diseases in a reservoir area and is generally divided into temporary leakage and permanent leakage. When the dam leaks, the economic benefit of the reservoir area is reduced, and phenomena such as salinization and swampiness can be caused. Therefore, how to improve the anti-permeability performance of the dam during the construction period and how to perform leakage treatment at the later period are very critical issues.

At present, the common method for improving the impermeability of the dam is to use a large amount of concrete with high impermeability coefficient, however, the cost of the concrete with high impermeability coefficient is expensive, so that the construction cost and the later maintenance cost of the dam are high.

SUMMERY OF THE UTILITY MODEL

In order to reduce the construction cost of the dam under the premise of ensuring the anti-seepage performance of the dam, the application provides a reservoir anti-seepage dam.

The application provides a reservoir prevention of seepage dykes and dams has adopted following technical scheme:

the utility model provides a reservoir seepage control dyke, includes the base, its characterized in that, base upstream face one side is provided with the metalling, one side that the metalling deviates from the base is provided with the dolomite layer, one side that the dolomite layer deviates from the metalling is provided with impervious coefficient more than or equal to P10's first concrete layer, one side that first concrete layer deviates from the dolomite layer is provided with the geomembrane that is used for the prevention of seepage, the geomembrane deviates from first concrete one side and is provided with the second concrete layer that impervious coefficient is P12, the second concrete layer deviates from geomembrane one side and is provided with the compound material layer that is insoluble in water.

Through adopting above-mentioned technical scheme, combined material layer, second concrete layer, geomembrane layer, first concrete layer, whitestone layer and the impervious performance of rubble layer that the base upstream face set gradually from outer to interior reduce gradually, but the cost of layer structure also reduces gradually. The outermost layer is made of a material with good impermeability and high structural strength, and the inner layer is made of a material with poor impermeability and low cost. The anti-permeability performance and the safety of the dam are guaranteed, and meanwhile the construction cost and the maintenance cost of the dam are reduced.

Optionally, the composite layer comprises polymer-based composite particles and silicatic limestone reinforcing filler added between the polymer-based composite particles.

By adopting the technical scheme, the silicalite contains a large amount of silicalite compounds and is extremely difficult to dissolve in water. By adding the silicified limestone as the reinforcing filler into the polymer-based composite material, the waterproof and anti-permeability performance of the composite material can be improved, so that the corrosion speed of the composite material layer is reduced, and the service life of the composite material layer is prolonged.

Optionally, the gravel layer comprises a plurality of broken stones and clay filled between the broken stones.

Through adopting above-mentioned technical scheme, because the impervious performance of rubble is poor, but the cost meets the end, sets up it inside, avoids with water direct contact, can practice thrift the construction cost of dam. And then, clay is poured between the broken stones, so that the anti-permeability performance of the broken stones is improved, and the overall structural strength of the broken stone layer is also enhanced.

Optionally, the two sides of the composite material layer are provided with mud-ash layers for further improving the anti-permeability performance.

Through adopting above-mentioned technical scheme, the argillaceous content is high in the marl layer, and the argillaceous is also extremely indissolvable in water for the marl layer also has better impervious anticorrosive performance, has further promoted the impervious performance of dykes and dams, and the setting of marl layer can be better fixed combined material layer, has promoted the steadiness that accords with the material layer.

Optionally, the first concrete layer and the second concrete layer are internally provided with a reinforcing part for reinforcing the strength of the dam, the reinforcing part comprises a first steel plate and a second steel plate, the first steel plate is arranged in the first concrete layer, the second steel plate is arranged in the second concrete layer, and the first steel plate and the second steel plate are fixedly connected through a connecting pipe.

Through adopting above-mentioned technical scheme, set up first steel sheet in first concrete layer, set up the second steel sheet in the second concrete layer, connecting first steel sheet and second steel sheet through the connecting pipe for joint strength between first concrete layer and the second concrete layer obtains promoting.

Optionally, the connecting pipe is connected with a water stop strip at the connecting part of the geomembrane, and the water stop strip is arranged on two sides of the geomembrane.

Through adopting above-mentioned technical scheme, through be provided with the sealing rod on the connecting pipe, influence the impervious performance of geomembrane when avoiding the connecting pipe to pass the geomembrane.

Optionally, a plurality of rows of grouting hole groups are arranged on the riverbed on the upstream side of the base along the width direction of the base, each row of grouting hole groups comprise a plurality of grouting holes arranged along the length direction of the base, each grouting hole is vertically arranged downwards, and clay is added to the grouting holes in the grouting holes.

Through adopting above-mentioned technical scheme, through having seted up the grout hole to downthehole clay that adds of grout. Under the effect of clay, the permeable bed on riverbed top layer can form one grout curtain, avoids rivers to take place the seepage by the permeable bed of riverbed, has further promoted the impervious performance of dykes and dams.

Optionally, the grouting holes in two adjacent rows of grouting hole groups are alternately arranged.

Through adopting above-mentioned technical scheme, the grout hole that sets up in turn makes the leakproofness of grout curtain better, makes the impermeability of grout hole obtain further promotion.

In summary, the present application includes at least one of the following benefits:

1. through being provided with multilayer anti-permeability layer and metalling, when having guaranteed dykes and dams structural strength and impervious performance, the building maintenance cost of dykes and dams that also reduces.

2. Be provided with the mud-lime layer and carry out water repellent with the combined material layer, reduced the corruption of rivers to dykes and dams, promoted the life of dykes and dams.

3. Be provided with the grout hole and carry out the clay grout, make the impervious of riverbed position obtain promoting, avoid rivers to take place the seepage by the permeable bed on the riverbed.

Drawings

FIG. 1 is a schematic view of the overall structure of a dam according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a dike according to an embodiment of the present application;

fig. 3 is an enlarged view of a in fig. 2.

Reference numeral 1, a base; 11. a crushed stone layer; 12. a dolomite layer; 13. a first concrete layer; 14. a geomembrane; 15. a second concrete layer; 16. a layer of lime; 17. a composite material layer; 2. a riverbed; 21. grouting holes; 3. a reinforcement; 31. a first steel plate; 32. a second steel plate; 33. a connecting pipe; 34. a water stop strip.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a reservoir seepage-proofing dam. Referring to fig. 1 and 2, the reservoir seepage-proofing dam comprises a base 1 arranged on a riverbed 2, wherein a rubble layer 11 is arranged on one side of the base 1 facing the water surface, and the rubble layer 11 comprises rubbles and clay used for bonding the rubbles. The side of the crushed stone layer 11 facing away from the base 1 is provided with a dolomite layer 12. The crushed stone layer 11 has a low cost but poor anti-permeability. The dolomite layer 12 is arranged on the outer side of the crushed stone layer 11, and the dolomite contains magnesium substances, so that the dolomite layer has good anti-permeability performance, and the construction cost of the dam is reduced on the premise of ensuring the anti-permeability performance.

Referring to fig. 2, a first concrete layer 13 is provided on the side of the dolomite layer 12 facing away from the crushed stone layer 11, and the first concrete layer 13 is made of concrete with an impermeability coefficient P10. One side of the first concrete layer 13, which deviates from the white cloud layer, is provided with a layer of geomembrane 14, one side of the geomembrane 14, which deviates from the first concrete layer 13, is provided with a second concrete layer 15, and the second concrete layer 15 is formed by concrete with an impervious coefficient of P12. The anti-permeability coefficient of the first concrete layer 13 is lower than that of the second concrete layer 15, but the manufacturing cost of the first concrete layer 13 is lower than that of the second concrete layer 15, and the geomembrane 14 is arranged, so that the anti-permeability performance of the dam from outside to inside is reasonably reduced, and the construction cost of the dam is reduced.

Referring to fig. 2 and 3, a reinforcing member 3 for reinforcing the connection strength of the two layers is further disposed between the first concrete layer 13 and the second concrete layer 15, and specifically, the reinforcing member 3 includes a first steel plate 31 and a second steel plate 32. The first steel plate 31 is fixedly connected in the first concrete layer 13, and the second steel plate 32 is fixedly connected in the second concrete layer 15. A connecting pipe 33 is fixedly connected to one side of the first steel plate 31 close to the second concrete layer 15, and one end of the connecting pipe 33 far away from the end connected with the first steel plate 31, which penetrates through the geomembrane 14, is connected with the second steel plate 32. Under the effect of reinforcement 3, promoted the joint strength between first concrete layer 13 and second concrete layer 15, and then promoted the structural strength of dykes and dams.

Referring to fig. 3, two water stop strips 34 are fixedly connected to the connecting pipe 33, and the two water stop strips 34 are respectively disposed on two sides of the geomembrane 14. The water stop strip 34 is used for sealing the joint of the connecting pipe 33 and the geomembrane 14, and the problem that the impermeability of the geomembrane 14 is affected due to the fact that the connecting pipe 33 penetrates through the geomembrane 14 is avoided.

Referring to fig. 2, a side of the second concrete layer 15 facing away from the geomembrane 14 is provided with a layer of mortar 16, a composite layer 17 is bonded to the layer of mortar 16, and a layer of mortar 16 is further coated on a side of the composite layer 17 facing away from the layer of mortar 16. The composite material layer 17 comprises high polymer matrix composite particles and a silicified limestone reinforcing filler, wherein the high polymer matrix composite particles are arranged on the surface layer of the lime layer 16 at intervals, and the silicified limestone reinforcing filler is arranged among the high polymer matrix composite particles. As the argillaceous substance in the argillaceous layer 16 and the silicide in the silicified limestone have good water resistance and extremely low solubility in water, the anti-permeability performance of the dam is very good, so that the anti-permeability effect of the dam is further improved.

Referring to fig. 1, two grouting hole groups are arranged on a riverbed 2 on the upstream side of a base 1 along the width direction of the base 1, each grouting hole group comprises a plurality of grouting holes 21 arranged along the length direction of the base 1, and each grouting hole 21 is vertically and downwards opened. Grouting holes 21 in two adjacent grouting hole groups are alternately arranged in a staggered manner, and clay for resisting seepage is added into each grouting hole 21. Because the surface layer of the river bed 2 has a permeable layer, the grouting holes 21 are formed, and clay for seepage prevention is added into the grouting holes 21. Make the water permeability of permeable bed reduce, avoid rivers to permeate the surface of a back side of dykes and dams by the permeable bed. Simultaneously, the alternate grouting holes 21 also increase the coverage area of the grouting holes 21 on the permeable layer, and the anti-permeability effect is improved.

The implementation principle of the reservoir seepage-proofing dam of the embodiment of the application is as follows: when the dam is used for intercepting the water source of a bookstore, the anti-permeability performance of the dam is improved due to the arrangement of the composite material layer 17, the mud-lime layer 16, the first concrete layer 13, the geomembrane 14, the second concrete layer 15 and the dolomite layer 12. Simultaneously, the clay in the grout hole 21 has reduced the water permeability on 2 permeable beds of riverbed, has further promoted the impervious performance of dykes and dams.

The arrangement of the gravel layer 11 reduces the construction cost of the dam on the premise of ensuring the structural strength and the anti-permeability performance of the dam.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a reservoir seepage control dyke, is including setting up base (1) on riverbed (2), its characterized in that, the upstream face one side of base (1) is provided with rubble layer (11), one side that rubble layer (11) deviate from base (1) is provided with dolomite layer (12), one side that dolomite layer (12) deviate from rubble layer (11) is provided with impervious coefficient more than or equal to P10's first concrete layer (13), one side that first concrete layer (13) deviate from dolomite layer (12) is provided with geomembrane (14) that are used for the prevention of seepage, geomembrane (14) deviate from first concrete one side and are provided with impervious coefficient and are P12's second concrete layer (15), second concrete layer (15) deviate from geomembrane (14) one side and are provided with water-insoluble combined material layer (17).

2. The dam of claim 1, wherein the composite layer (17) comprises a plurality of polymer-based composite particles disposed on the surface of the second concrete layer (15) and a silicated limestone reinforcing material disposed between adjacent polymer-based composite particles.

3. The dam of claim 2 wherein the gravel layer (11) comprises a plurality of crushed stones and clay grouted between the crushed stones.

4. The dam of claim 1, wherein both sides of the composite layer (17) are provided with a layer of lime (16) to further enhance the barrier properties of the dam.

5. The dam of claim 1, wherein the first concrete layer (13) and the second concrete layer (15) are further provided with reinforcements (3) for reinforcing the strength of the dam, the reinforcements (3) comprise a first steel plate (31) and a second steel plate (32), a plurality of the first steel plates (31) are arranged in the first concrete layer (13), a plurality of the second steel plates (32) are arranged in the second concrete layer (15), and the first steel plates (31) and the second steel plates (32) are fixedly connected through connecting pipes (33).

6. The dam of claim 5 wherein a water stop strip (34) is attached to the connection between the connector (33) and the geomembrane (14), said water stop strip (34) being disposed on both sides of the geomembrane (14).

7. The dam of claim 1, wherein the riverbed (2) on the upstream side of the base (1) is provided with a plurality of rows of grouting hole groups along the width direction of the base (1), each row of grouting hole group comprises a plurality of grouting holes (21) along the length direction of the base (1), each grouting hole (21) is vertically opened downwards, and clay is added into the grouting hole (21) in a grouting manner.

8. The dam of claim 7 wherein the grout holes (21) in two adjacent rows of grout hole sets are arranged alternately.