CN212103930U

CN212103930U - Seepage-proofing structure of rock-fill dam of tailing pond

Info

Publication number: CN212103930U
Application number: CN201922296531.0U
Authority: CN
Inventors: 董礼辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2020-12-08
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a tailing storehouse rock-fill dam seepage prevention structure relates to tailing rock-fill dam technical field, including the dam main part, the outer dam body of one side fixedly connected with of interior seepage prevention structure, the dam body in the opposite side fixedly connected with of interior seepage prevention structure, the bottom of interior dam body is equipped with the dam foundation, the top on dam crest is equipped with the dam crest anchor, one side that interior dam body is close to the tailing is equipped with outer seepage prevention structure. Through the setting of the outer anti-seepage structure on one side of the inner dam body, the composite geomembrane and the HDPE anti-seepage film have the advantages of good anti-seepage performance and the like, so that the anti-seepage effect on the inner dam body is good, the leakage of tailing wastewater can be effectively blocked, the steel fiber anti-seepage layer is a steel fiber concrete anti-seepage layer due to the arrangement of the inner anti-seepage structure, the anti-seepage effect is good, a secondary anti-seepage guarantee can be provided for the dam main body, the tailing wastewater is prevented from leaking after the outer anti-seepage structure is damaged due to accidents, the environment is prevented from being polluted, and a better use prospect is brought.

Description

Seepage-proofing structure of rock-fill dam of tailing pond

Technical Field

The utility model relates to a tailing rock-fill dam technical field, in particular to tailing storehouse rock-fill dam seepage prevention structure.

Background

The tailings refer to ores mined from metal or nonmetal mines, and are discharged after valuable concentrate is selected by a concentrating mill. The tailing pond is a place which is formed by building a dam to intercept a valley opening or enclosing the ground and is used for piling metal or nonmetal mines and discharging tailings or other industrial waste residues after ore sorting. The main body of the rock-fill dam is a dam built by filling with stone.

At present, when the rock-fill dam of the tailing pond is used, the problems of large pores and strong permeability of the rock-fill dam exist, tailing wastewater leakage is easily caused, and the surrounding environment is seriously polluted, so that the seepage-proofing structure of the rock-fill dam of the tailing pond is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a tailing storehouse rock-fill dam seepage prevention structure, can effectively solve the present tailing storehouse rock-fill dam that proposes in the background art when using, it is very big to have the rock-fill dam hole, and the very strong problem of permeability causes the tailing waste water seepage easily, causes the problem of more serious pollution to the surrounding environment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tailing storehouse rock-fill dam seepage prevention structure, includes the dam main part, the dam main part includes outer dam body, interior seepage prevention structure and interior dam body, the outer dam body of one side fixedly connected with of interior seepage prevention structure, the dam body in the opposite side fixedly connected with of interior seepage prevention structure, one side of dam main part is equipped with the tailing, the tailing is located one side of interior dam body, the bottom of interior dam body is equipped with the dam foundation, the one end that the dam foundation is close to interior dam body one side bottom is equipped with the dam foundation anchor, the top of interior dam body is equipped with the dam crest, the top of dam crest is equipped with the dam crest anchor, one side that interior dam body is close to the tailing is equipped with outer seepage prevention structure.

Preferably, the outer dam body and the inner dam body are built by stones and concrete.

Preferably, the outer anti-seepage structure comprises gravel, an HDPE anti-seepage film and a composite geomembrane, the gravel is made of gravel and concrete, the gravel is fixedly connected to one side of the inner dam body, the bottom of the HDPE anti-seepage film is arranged outside the gravel, and the bottom of the composite geomembrane is arranged at the top of the HDPE anti-seepage film.

Preferably, the lower ends of the composite geomembrane and the HDPE seepage-proofing membrane are fixedly connected with the dam foundation anchor, and the upper ends of the composite geomembrane and the HDPE seepage-proofing membrane are fixedly connected with the dam top anchor.

Preferably, the inner anti-seepage structure comprises a first concrete layer, a steel fiber anti-seepage layer and a second concrete layer, two sides of the steel fiber anti-seepage layer are fixedly connected with one sides of the first concrete layer and the second concrete layer respectively, the other side of the first concrete layer is fixedly connected with one side, far away from the tailings, of the inner dam body, and the other side of the second concrete layer is fixedly connected with one side of the outer dam body.

Preferably, the steel fiber impermeable layer is a steel fiber concrete impermeable layer.

Compared with the prior art, the utility model discloses following beneficial effect has: this seepage prevention structure of rock-fill dam of tailing storehouse, through the setting of the outer seepage prevention structure of interior dam body one side, because compound geomembrane has that the impermeability is good, extensibility is good and corrosion-resistant advantage, and HDPE seepage prevention membrane has that the impervious coefficient is high, tensile strength is strong, corrosion-resistant and puncture resistance are good advantage, make the prevention of seepage of interior dam body effectual, can effectually block the leakage of tailing waste water, owing to be equipped with interior seepage prevention structure, the steel fibre barrier layer is the steel fibre concrete barrier layer, it is effectual to prevent seepage, can provide the guarantee of preventing seepage for the second time for the dam main part, prevent that outer seepage prevention structure from being destroyed because of the accident after, cause the seepage of tailing waste water, lead to causing the pollution to the environment.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the present invention.

In the figure: 1. a dam body; 2. an outer dam body; 3. an inner impermeable structure; 4. an inner dam body; 5. anchoring the dam foundation; 6. an outer impermeable structure; 7. anchoring the dam crest; 8. a dam foundation; 9. a dam crest; 10. tailings; 11. sand gravel; 12. an HDPE barrier film; 13. compounding the geomembrane; 14. a first concrete layer; 15. a steel fiber barrier layer; 16. and a second concrete layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, the seepage-proofing structure of the rock-fill dam of the tailing pond comprises a dam body 1, wherein the dam body 1 comprises an outer dam body 2, an inner seepage-proofing structure 3 and an inner dam body 4, one side of the inner seepage-proofing structure 3 is fixedly connected with the outer dam body 2, the other side of the inner seepage-proofing structure 3 is fixedly connected with the inner dam body 4, one side of the dam body 1 is provided with tailings 10, the tailings 10 are positioned on one side of the inner dam body 4, the tailings are stored on the side, the bottom of the inner dam body 4 is provided with a dam foundation 8, one end of the dam foundation 8, which is close to the bottom of the inner dam body 4, is provided with a dam foundation anchor 5, the top of the inner dam body 4 is provided with a dam crest anchor 9, the top of the dam foundation 9 is provided with a dam crest.

The outer dam body 2 and the inner dam body 4 are built by stones and concrete; the outer anti-seepage structure 6 comprises gravel 11, an HDPE (high-density polyethylene) anti-seepage film 12 and a composite geomembrane 13, the gravel 11 is made of gravel and concrete, the gravel 11 is fixedly connected to one side of the inner dam body 4, the bottom of the HDPE anti-seepage film 12 is arranged outside the gravel 11, the bottom of the composite geomembrane 13 is arranged at the top of the HDPE anti-seepage film 12, the advantages of good anti-seepage property, good extensibility and corrosion resistance of the composite geomembrane 13 can be utilized, and the HDPE anti-seepage film 12 has the advantages of high anti-seepage coefficient, strong anti-stretching property, good corrosion resistance and good puncture resistance, so that the anti-seepage effect on the inner dam body 4 is good, and the leakage of tailing wastewater can be effectively; the lower ends of the composite geomembrane 13 and the HDPE impervious membrane 12 are fixedly connected with the dam foundation anchor 5, the upper ends of the composite geomembrane 13 and the HDPE impervious membrane 12 are fixedly connected with the dam crest anchor 7, so that the upper end and the lower end of the composite geomembrane 13 and the HDPE impervious membrane 12 are respectively fixed through the dam foundation anchor 5 and the dam crest anchor 7, and the dam foundation anchor 5 and the dam crest anchor 7 are common in the construction of rock-fill dams; the inner anti-seepage structure 3 comprises a first concrete layer 14, a steel fiber anti-seepage layer 15 and a second concrete layer 16, wherein two sides of the steel fiber anti-seepage layer 15 are fixedly connected with one sides of the first concrete layer 14 and the second concrete layer 16 respectively, the other side of the first concrete layer 14 is fixedly connected with one side of the inner dam body 4 far away from the tailings 10, and the other side of the second concrete layer 16 is fixedly connected with one side of the outer dam body 2; the steel fiber impermeable layer 15 is a steel fiber concrete impermeable layer, has a good impermeable effect, can provide a second impermeable guarantee for the dam body 1, and prevents the leakage of the tailing wastewater caused by the fact that the outer impermeable structure 6 is damaged by accident.

It should be noted that the utility model relates to a tailing pond rock-fill dam seepage prevention structure, when in use, because the outer anti-seepage structure 6 is arranged on one side of the inner dam body 4, and the composite geomembrane 13 has the advantages of good anti-seepage property, good extensibility and corrosion resistance, and the HDPE impermeable membrane 12 has the advantages of high impermeable coefficient, strong tensile resistance, corrosion resistance and good puncture resistance, so that the inner dam body 4 has good anti-seepage effect, can effectively block the leakage of tailing wastewater, because the inner seepage-proofing structure 3 is arranged and the steel fiber seepage-proofing layer 15 is a steel fiber concrete seepage-proofing layer, the seepage-proofing effect is good, a secondary seepage-proofing guarantee can be provided for the dam body 1, after the outer seepage-proofing structure 6 is prevented from being damaged by accident, the leakage of the tailing wastewater is caused, the environment is polluted, and the outer anti-seepage structure 6 needs to be repaired in time after being damaged, so that the use of people is facilitated, and the method is practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tailing storehouse rock-fill dam seepage prevention structure, includes dam main part (1), its characterized in that: dam main part (1) is including outer dam (2), interior seepage prevention structure (3) and interior dam (4), dam (2) outside one side fixedly connected with of interior seepage prevention structure (3), dam (4) in the opposite side fixedly connected with of interior seepage prevention structure (3), one side of dam main part (1) is equipped with tailing (10), tailing (10) are located one side of interior dam (4), the bottom of interior dam (4) is equipped with dam foundation (8), the one end that dam foundation (8) are close to interior dam (4) one side bottom is equipped with dam foundation anchor (5), the top of interior dam (4) is equipped with dam crest (9), the top of dam crest (9) is equipped with dam crest anchor (7), one side that interior dam (4) are close to tailing (10) is equipped with outer seepage prevention structure (6).

2. The seepage-proofing structure of the rock-fill dam of the tailing pond according to claim 1, which is characterized in that: the outer dam body (2) and the inner dam body (4) are built by stones and concrete.

3. The seepage-proofing structure of the rock-fill dam of the tailing pond according to claim 1, which is characterized in that: the outer anti-seepage structure (6) comprises gravel stones (11), an HDPE anti-seepage film (12) and a composite geomembrane (13), the gravel stones (11) are made of gravel and concrete, the gravel stones (11) are fixedly connected to one side of the inner dam body (4), the bottom of the HDPE anti-seepage film (12) is arranged outside the gravel stones (11), and the bottom of the composite geomembrane (13) is arranged at the top of the HDPE anti-seepage film (12).

4. The seepage-proofing structure of the rock-fill dam of the tailing pond according to claim 3, characterized in that: the lower ends of the composite geomembrane (13) and the HDPE impermeable membrane (12) are fixedly connected with a dam foundation anchor (5), and the upper ends of the composite geomembrane (13) and the HDPE impermeable membrane (12) are fixedly connected with a dam top anchor (7).

5. The seepage-proofing structure of the rock-fill dam of the tailing pond according to claim 1, which is characterized in that: interior impervious structure (3) include concrete layer (14), steel fibre barrier layer (15) and No. two concrete layers (16), the both sides of steel fibre barrier layer (15) respectively with one side fixed connection of a concrete layer (14) and No. two concrete layers (16), one side fixed connection of tailing (10) is kept away from with interior dam body (4) to the opposite side of a concrete layer (14), one side fixed connection of No. two concrete layers (16) and outer dam body (2).

6. The seepage-proofing structure of the rock-fill dam of the tailing pond according to claim 5, characterized in that: the steel fiber impermeable layer (15) is a steel fiber concrete impermeable layer.