CN215441761U

CN215441761U - Drainage channel

Info

Publication number: CN215441761U
Application number: CN202120711429.7U
Authority: CN
Inventors: 李道明; 吴国高; 罗敏杰; 曾宪坤; 刘瀚和; 肖文璨
Original assignee: China Nerin Engineering Co Ltd
Current assignee: China Nerin Engineering Co Ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-01-07
Anticipated expiration: 2031-04-08

Abstract

The utility model provides a drainage channel, which consists of a plurality of sections of drainage channel units, wherein each drainage channel unit comprises a channel embankment, a channel slope and a channel bottom; the dug is adopted geotechnique's mould bag to fill the tailings and piles up and form, the canal slope is in the dug interior slope of dug is laid geotechnological cloth and is adopted plain concrete to pour and form again, the domatic movement joint that is equipped with of canal, the canal bottom adopts two-way geogrid to wrap up the rubble and constitutes with stainless steel wire or plastics ribbon cramping. The drainage channel can solve the problem that the drainage channel arranged on the tailings is easy to crack or damage in structure, has the characteristics of low implementation difficulty, strong adaptive deformability and good application effect, and can be widely applied to drainage engineering in a tailing warehouse.

Description

Drainage channel

Technical Field

The utility model relates to a drainage channel, in particular to a drainage channel in a tailing pond.

Background

The tailings pond is a place for storing metal or nonmetal mines and discharging tailings or other industrial waste residues after ore sorting. A large amount of tailing slurry enables a tailing pond to become an artificial debris flow danger source with high potential energy, and major accidents are easily caused once the tailings are lost, so that great harm is caused to the lives, properties and environment of the downstream masses.

At present, rigid materials such as reinforced concrete or building block structures are adopted in drainage channels in tailings reservoirs, but due to high basic requirements and small adaptive deformability, the drainage channels in the tailings reservoirs are prone to structural cracking or damage.

In recent years, with the development of high polymer technology, the application of the geotechnical model bags is more and more extensive, and the filling of the geotechnical model bags with tailings for diking is one of the geotechnical model bags, and the tailings can be obtained from local materials, have high construction mechanization degree, have the characteristics of short construction period, easy quality control, no need of extra land acquisition and the like, and are gradually applied to tailing pond engineering.

Therefore, it is necessary to find a drainage channel suitable for use on the tailings surface.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a drainage channel, which consists of a plurality of sections of drainage channel units, wherein each drainage channel unit comprises a channel embankment, a channel slope and a channel bottom; the canal dike is formed by filling tailings into a geotechnical formwork bag, the canal slope is formed by pouring plain concrete, and the bottom of the canal is formed by wrapping broken stones with geogrids.

Wherein, the dyke is formed by piling up the filling tailings of the multilayer geotechnical mold bags.

Wherein the thickness of the geotechnical mould bag filled with the tailings in each layer is 0.25-0.5 m, the top width is 5-10 m, and the ratio of the inner slope to the outer slope is 1: 1.5-1: 3.

The channel slope is formed by paving geotextile on the slope surface in the channel bank and pouring plain concrete, and the channel slope surface is provided with deformation joints.

Wherein the thickness of the channel slope is 0.1-0.3 m.

Wherein, the deformation joint is arranged at intervals of 2-5 m, and the width of the joint is 3-6 cm.

The bottom of the canal is formed by wrapping gravels by adopting a bidirectional geogrid and hooping by using stainless steel wires or plastic bands.

Wherein the thickness of the trench bottom is 0.3-0.5 m.

Wherein the crushed stone has a minimum particle size larger than the mesh size of the geogrid.

The utility model has the beneficial effects that:

the drainage channel provided by the utility model is constructed by filling the earthwork model bags with the tailings in the tailing pond on the basis of the tailing surface, the canal dike is a flexible body formed by stacking a plurality of layers of the earthwork model bags filled with the tailings, and the earthwork model bags have certain elastic deformation capacity, can well adapt to the settlement deformation of the tailing surface and can avoid cracking or damaging the dike body.

Compared with the existing drainage channel, the drainage channel provided by the utility model has the advantages that the tailing sand is filled in the geotechnical mold bags to form the canal dike, plain concrete is cast on the inner slope surface of the canal dike in situ to form the canal slope, and the geogrid is used for wrapping broken stones on the tailing sand to form the canal bottom, so that the purpose of draining on the tailing sand surface in a tailing pond can be achieved, and the problems that a rigid material structure is easy to crack or damage or the foundation treatment cost is high and the construction difficulty is high can be avoided. The drainage channel provided by the utility model has the characteristics of low implementation difficulty, strong adaptive deformability and good application effect, and can be widely applied to drainage engineering in a tailing reservoir.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it should be obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic plan view of a drainage channel according to the present invention;

the names corresponding to the marks in the drawings are as follows: 1-a trench bank, 2-a trench slope, 3-a trench bottom.

Detailed Description

In order to make the technical solution and advantages of the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. All other embodiments made by those skilled in the art to which the present invention pertains without departing from the spirit of the present invention shall fall within the scope of the present invention.

The utility model provides a drainage channel, as shown in figure 1, the drainage channel is arranged on the surface of tailings in a tailings storehouse, the drainage channel is composed of a plurality of sections of drainage channel units, and the drainage channel units comprise a channel embankment 1, a channel slope 2 and a channel bottom 3.

The ditch dike 1 is formed by stacking a plurality of layers of geotechnical mold bags filled with tailings on the surface of the tailings, the thickness of each layer of geotechnical mold bag filled with the tailings is 0.25-0.5 m, the top width is 5-10 m, and the ratio of the inner slope to the outer slope is 1: 1.5-1: 3.

The channel slope 2 is formed by directly or firstly laying 1-2 layers of 600-800 g/m on the inner slope surface of the channel embankment 1²The non-woven geotextile is formed by casting C15-C25 plain concrete in situ, and the thickness of the non-woven geotextile is 0.1-0.3 m; deformation joints are arranged on the 2 surfaces of the canal slopes, one deformation joint is arranged at intervals of 2-5 m, the width of each deformation joint is 3-6 cm, and the deformation joints are plugged by foam or asphalt boards.

The trench bottom 3 is a two-way plastic geogrid with the specification of TGSG 3030-TGSG 8080, broken stones are wrapped by the upper and lower layers of geogrids and are hooped by stainless steel wires or plastic bands, and the thickness of the trench bottom 3 is 0.3-0.5 m; the minimum particle size requirement of the gravels adopted by the channel bottom 3 is larger than the mesh size of the geogrid, and the gravels are paved from the tailing surface to the channel bottom 3 surface according to the particle size from small to large.

The above examples only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A drainage channel characterized by: the drainage channel consists of a plurality of sections of drainage channel units, and each drainage channel unit comprises a channel bank, a channel slope and a channel bottom; the canal dike is formed by filling tailings into a geotechnical formwork bag, the canal slope is formed by pouring plain concrete, and the bottom of the canal is formed by wrapping broken stones with geogrids.

2. The drainage channel of claim 1, wherein: the dyke is formed by stacking a plurality of layers of geotechnical mold bags filled with tailings.

3. The drainage channel of claim 2, wherein: the thickness of the geotechnical mould bag filled with the tailings in each layer is 0.25-0.5 m, the top width is 5-10 m, and the ratio of the inner slope to the outer slope is 1: 1.5-1: 3.

4. The drainage channel of claim 1, wherein: the channel slope is formed by paving geotextile on the slope surface in the channel bank and pouring plain concrete, and the channel slope surface is provided with deformation joints.

5. The drainage channel of claim 4, wherein: the thickness of the channel slope is 0.1-0.3 m.

6. The drainage channel of claim 4, wherein: the deformation joint is arranged at intervals of 2-5 m, and the width of the joint is 3-6 cm.

7. The drainage channel of claim 1, wherein: the bottom of the canal is formed by wrapping gravels by adopting a bidirectional geogrid and hooping the gravels by using stainless steel wires or plastic bands.

8. The drainage channel of claim 7, wherein: the thickness of the trench bottom is 0.3-0.5 m.

9. The drainage channel of claim 7, wherein: the minimum particle size of the crushed stones is larger than the mesh size of the geogrid.