CN220953750U - Tailing pond drainage system - Google Patents
Tailing pond drainage system Download PDFInfo
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- CN220953750U CN220953750U CN202323002938.0U CN202323002938U CN220953750U CN 220953750 U CN220953750 U CN 220953750U CN 202323002938 U CN202323002938 U CN 202323002938U CN 220953750 U CN220953750 U CN 220953750U
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- seepage
- drainage
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- pipe network
- drainage pipe
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- 239000004575 stone Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000008595 infiltration Effects 0.000 claims abstract description 27
- 238000001764 infiltration Methods 0.000 claims abstract description 27
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 11
- 239000004746 geotextile Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 67
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000007599 discharging Methods 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The utility model discloses a tailing pond drainage system, which comprises a drainage tunnel and an upstream filling layer arranged on the drainage tunnel, wherein a plugging body is arranged between the filling layer and the drainage tunnel; the filling layer comprises a stone layer and a first crushed stone layer which are arranged from bottom to top, and a second seepage drainage pipe network is arranged in the first crushed stone layer; a fourth seepage drainage pipe network and a first seepage drainage pipe network are arranged in the stone block layer, and the water inlet end of the fourth seepage drainage pipe network is arranged in the karst water burst channel; the junction of the first gravel layer and the side slope is provided with a gravel collecting and infiltration side ditch, the inner side of the side slope is provided with a side slope inverted filter layer, the side slope inverted filter layer is connected with the gravel collecting and infiltration side ditch, and a third row of infiltration pipe network is arranged in the gravel collecting and infiltration side ditch; the water outlet ends of the first seepage drainage pipe network, the second seepage drainage pipe network, the third seepage drainage pipe network and the fourth seepage drainage pipe network penetrate through the plugging body and extend outwards into the drainage tunnel. According to the tailing pond drainage system, vertical water seepage, slope water seepage and underground water are respectively collected and drained, so that the safety and stability of the bottom of the tailing pond are ensured.
Description
Technical Field
The utility model relates to the technical field of drainage of a karst region tailing pond bottom, in particular to a tailing pond drainage system.
Background
The karst areas of the karst areas are most developed by utilizing the bealock around the karst depressions to build dams to form reservoir volumes, and karst forms such as solution ditches, solution tanks, cracks, soil holes, water falling holes and the like are crisscrossed, so that collapse leakage accidents are very easy to occur under the influence of external load, water seepage and upwelling groundwater at the reservoir bottoms along with the discharge of tailings. The tailings leak out through underground karst channels to pollute underground water, rivers, cultivated land and urban drinking water sources, so that great economic loss and bad social negative effects are caused. Therefore, the problem of leakage prevention of the bottom of the karst region tailing pond is a core problem of construction of the karst region tailing pond.
Aiming at the problems, the water is the key of anti-seepage treatment of the tailing pond in the karst area, different treatment modes are adopted for different types of water, and anti-seepage measures are adopted for vertical infiltration in the tailing pond and side slope infiltration at the bottom of the tailing pond to prevent infiltration; underground water is discharged by arranging a drainage system; the final aim is to reduce the influence of water on the safety and stability of the bottom of the warehouse as much as possible.
Disclosure of utility model
The utility model aims to provide a tailing pond drainage system which can collect and drain vertical infiltration water, slope infiltration water and underground water in a tailing pond respectively, is not influenced by each other, and effectively prevents various water from influencing the bottom pavement, thereby ensuring the safety and stability of the bottom.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The tailing pond drainage system comprises a drainage tunnel and a filling layer, wherein the drainage tunnel is arranged at the bottom of the tailing pond, the filling layer is arranged at the upstream of the drainage tunnel, and a blocking body is arranged between the filling layer and the drainage tunnel; the filling layer comprises a stone layer and a first gravel layer which are arranged from bottom to top, one side of the first gravel layer is adjacent to a side slope of the bottom of the tailing pond, and a second seepage drainage pipe network is arranged in the first gravel layer; a fourth seepage drainage pipe network and a first seepage drainage pipe network are arranged in the rock block layer, and the water inlet end of the fourth seepage drainage pipe network is arranged in a karst channel at the bottom of the tailing pond; the junction of the first gravel layer and the side slope is provided with a gravel collecting and infiltration side ditch, the inner side of the side slope is provided with a side slope reverse filtering layer, the side slope reverse filtering layer is connected with the gravel collecting and infiltration side ditch, and a third drainage and infiltration pipe network is arranged in the gravel collecting and infiltration side ditch; the water outlet ends of the first seepage drainage pipe network, the second seepage drainage pipe network, the third seepage drainage pipe network and the fourth seepage drainage pipe network penetrate through the blocking body and extend outwards into the drainage tunnel.
And excavating karst at the bottom of the tailing pond according to the water flushing points of the bottom of the tailing pond in the rainy season in the past year to form a karst channel. The water in the karst channel is drained through a fourth drainage pipe network by adopting different treatment modes for different types of water, and the karst crack seepage water at the bottom of the reservoir is drained through a first drainage pipe network; arranging a second seepage drainage pipe network to drain the vertical seepage in the warehouse so as to prevent seepage; the third seepage pipe network is arranged to collect and drain the side slope seepage water, so that all types of water are collected and drained, the water seepage pipe network is not affected by each other, the influence of all types of water on the bottom of the warehouse is effectively prevented, and the safety and stability of the bottom of the warehouse are ensured.
Preferably, the karst passageway top is equipped with the karst shutoff body, the fourth row oozes the pipe network and includes fourth row and oozes main pipe and many fourth collection oozes the pipe, and the one end that many fourth collection oozes the pipe all runs through the karst shutoff body, and the other end all links to each other with fourth row and oozes main pipe, and the play water end that the fourth row oozes main pipe runs through the shutoff body outwards extends to in the drainage tunnel. According to the water inflow of the karst channel, the fourth seepage collecting pipe can be a steel pipe with the inner diameter of 100-200 mm and stretches below the karst plugging body, and the fourth seepage collecting main pipe can be a steel pipe with the inner diameter of 300-400 mm. Because the fourth seepage-collecting pipe network needs to bear larger tailing load, the fourth seepage-collecting main pipe and the fourth seepage-collecting pipes are covered with concrete for protection, and the pipelines are arranged on bedrock.
Preferably, the thickness of the stone layer is 1.5-5 m. Depending on the amount of concentrated water and the topography conditions, the stone layer should have a certain thickness.
Preferably, the first infiltration discharging pipe network comprises a first infiltration discharging pipe and a plurality of first infiltration collecting pipes; one end of a plurality of first collection oozes the pipe and sets up in the tuberous stone layer, and the other end all links to each other with first row oozes the pipe, and the play water end of first row oozes the pipe runs through the shutoff body outwards extends to in the drainage tunnel. The first seepage collecting pipe can be an open-pore steel pipe or blind pipe with the inner diameter of 50-100 mm, the outside of the pipe is wrapped with geotextile for collecting water seepage in a stone layer with the density of 10-15 kN/m 2, and the seepage collecting pipe is connected into a drainage tunnel through a first seepage draining pipe after being gathered. According to the water collection amount and the bearing requirement, the first seepage drainage pipe can be a steel pipe with the inner diameter of 300-400 mm, is arranged on the bedrock and is covered with reinforced concrete for protection.
Preferably, a second crushed stone layer is further arranged between the block stone layer and the first crushed stone layer, the thickness of the second crushed stone layer is 20-30 cm, and the particle size of crushed stone adopted by the second crushed stone layer is 20-50 mm.
Preferably, the first crushed stone layer comprises a composite geomembrane and a crushed stone layer, the composite geomembrane is coated outside the crushed stone layer, and the thickness of the crushed stone layer is 0.5-1.0 m. The first gravel layer is arranged on the surface layer of the bottom of the reservoir, and the composite geomembrane can be composed of two layers of 10-15 kN/m 2 geotextile and one layer of PE geomembrane with the thickness of 0.5-0.8 mm.
Preferably, the second seepage drainage pipe network comprises a second seepage drainage pipe and a plurality of second seepage collection pipes, one ends of the second seepage collection pipes are arranged in the crushed stone layer, the other ends of the second seepage collection pipes are connected with the second seepage drainage pipe, and the water outlet ends of the second seepage drainage pipes penetrate through the sealing body and extend outwards into the drainage tunnel. The second seepage collecting pipe can be an open-pore steel pipe or blind pipe with the inner diameter of 50-100 mm and is wrapped with geotextile with the diameter of 10-15 kN/m 2, and the second seepage collecting pipe is used for collecting seepage in the crushed stone layer. The second seepage drainage pipe can be a steel pipe with the inner diameter of 300-400 mm, is arranged on bedrock and is covered with reinforced concrete for protection.
Preferably, the size of the broken stone collecting and infiltration side ditch is not less than 1 x 1m, the particle size of broken stone filled in the broken stone collecting and infiltration side ditch is 20-50 mm, and the broken stone is wrapped with geotextile. The third seepage-discharging pipe network in the broken stone seepage-collecting side ditch can adopt a steel pipe or blind pipe with the inner diameter of 100-200, and a layer of geotextile with the diameter of 10-15 kN/m 2 is wrapped outside the third seepage-discharging pipe network.
Preferably, the thickness of the slope reverse filtering layer is 20-30 cm, the particle size of broken stone adopted in the slope reverse filtering layer is 20-50 mm, and the broken stone is wrapped with geotextile.
Specifically, the water outlet ends of the first seepage drainage pipe network, the second seepage drainage pipe network, the third seepage drainage pipe network and the fourth seepage drainage pipe network are respectively provided with a valve, the valves are arranged in drainage tunnels, and the drainage tunnels are arranged at the lowest positions of the bottom of the tailing pond.
Compared with the prior art, the utility model has the following beneficial effects: according to the tailing pond drainage system, vertical water seepage, slope water seepage and underground water in the tailing pond are respectively collected and drained, the vertical water seepage, the slope water seepage and the underground water are not influenced, the influence of various types of water on bottom pavement is effectively prevented, and therefore safety and stability of the bottom are ensured.
Drawings
Fig. 1 is a schematic sectional view of a drainage system for a tailing pond according to the present utility model.
In the figure:
1-drainage tunnel, 2-plugging body, 3-valve, 4-fourth row oozes the pipe network, 5-stone layer, 6-second row oozes the pipe network, 7-second gravel layer, 8-first gravel layer, 81-composite geomembrane, 82-gravel layer, 9-rubble collection oozes the side ditch, 10-side slope reverse filter layer, 11-karst plugging body, 12-karst passageway, 13-side slope, 14-third row oozes the pipe network, 15-first row oozes the pipe network.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.
As shown in fig. 1, the embodiment provides a tailing pond drainage system, the tailing pond is a karst area tailing pond, the drainage system comprises a drainage tunnel 1 and a filling layer, the drainage tunnel 1 is arranged at the bottom of the tailing pond, the filling layer is arranged at the upstream of the drainage tunnel 1, and a plugging body 2 is arranged between the filling layer and the drainage tunnel 1. The drainage tunnel 1 is provided at the position of the lowest depression of the reservoir bottom, or at the position of the partitioned lowest depression. The plugging body 2 adopts C20 plain concrete, and the length of the plugging body 2 is extended to the position where the thickness of surrounding rock is not less than 40 m. The filling layer comprises a stone block layer 5, a second stone block layer 7 and a first stone block layer 8 which are arranged from bottom to top, a karst channel 12 is arranged below the stone block layer 5, and one side of the first stone block layer 8 is adjacent to a side slope 13 at the bottom of a tailing pond.
According to the water-flushing points of the field investigation of the reservoir bottom area in the rainy season of the past year, a karst channel 12 is dug in a targeted manner, a reinforced concrete karst blocking body 11 is arranged at the top of the karst channel 12, and a fourth seepage drainage pipe network 4 is embedded. The fourth seepage-proofing pipe network 4 adopts a seamless steel pipe, and the pipe diameter of the fourth seepage-proofing pipe network adopts DN108 to DN325 according to the water inflow. The fourth seepage drainage pipe network 4 is laid along bedrock, extends to the outside of the plugging body 2, is connected into the drainage tunnel 1 after being collected, and the pipe orifice is provided with the valve 3.
The bottom of the whole tailing pond is backfilled with large stones to form a stone block layer 5 with the thickness of not less than 1.5m and tens of thousands of square meters, and the gap of the backfilled large stones is the storage space for karst crack water seepage. And a layer of 15kN/m 2 geotextile is wrapped in the DN108 seamless steel pipe holes densely distributed in the stone block layer 5 and used as a first seepage collecting pipe, the first seepage collecting pipe is connected to a first seepage discharging main pipe to form a first seepage discharging pipe network 15, and the first seepage discharging main pipe adopts DN325 seamless steel pipes and is laid along bedrock. The first seepage drainage pipe network 15 extends to the outside of the plugging body 2, is connected to the drainage tunnel 1, and the pipe orifice is provided with the valve 3.
A second crushed stone layer 7 is arranged on the upper part of the stone block layer 5, and the second crushed stone layer 7 consists of crushed stone with the thickness of 30 cm. The upper portion of the stone layer 5 is provided with a first gravel layer 8, the first gravel layer 8 comprises two layers of composite geomembranes 81 and a gravel layer 82, the two layers of composite geomembranes 81 are coated outside the gravel layer 82, and the thickness of the gravel layer 82 is 50cm. The gravel layer 82 is internally provided with a second seepage-discharging pipe network 6, and the second seepage-discharging pipe network 6 comprises a second seepage-discharging pipe and a plurality of second seepage-collecting pipes, and the second seepage-collecting pipes are connected with the second seepage-discharging pipe after being collected. And the second seepage collecting pipe adopts DN108 seamless steel pipe, and the perforated holes wrap a layer of geotextile. The second seepage drainage pipe adopts DN325 seamless steel pipe, lays along the bedrock, extends to outside the shutoff body 2, inserts drainage tunnel 1, and the mouth of pipe sets up valve 3.
The junction of the reservoir bottom and the side slope 3 of the tailing reservoir bottom is provided with a broken stone collecting and infiltration side ditch 11, the surface of the side slope 3 is provided with a side slope reverse filtering layer 10, the broken stone collecting and infiltration side ditch 11 is connected with the side slope reverse filtering layer 10, and the water infiltration of the side slope 3 can be smoothly collected to the broken stone collecting and infiltration side ditch 11 along the side slope reverse filtering layer 10. A third seepage drainage pipe network 14 is buried in the broken stone seepage collecting side ditch 11, DN219 seamless steel pipes are adopted, a layer of 15kN/m 2 geotextile is wrapped by the open holes, the broken stone seepage collecting side ditch is laid along the periphery of the warehouse, extends out of the plugging body 2, is connected into the drainage tunnel 1, and a valve 3 is arranged at the pipe orifice.
According to the tailing pond drainage system, vertical water seepage, slope water seepage and underground water in the tailing pond are respectively collected and drained, the vertical water seepage, the slope water seepage and the underground water are not influenced, the influence of various types of water on bottom pavement is effectively prevented, and therefore safety and stability of the bottom are ensured.
The foregoing examples are set forth in order to provide a more thorough description of the present utility model, and are not intended to limit the scope of the utility model, since modifications of the present utility model, in which equivalents thereof will occur to persons skilled in the art upon reading the present utility model, are intended to fall within the scope of the utility model as defined by the appended claims.
Claims (10)
1. A tailing pond drainage system, characterized in that: the device comprises a drainage tunnel (1) and a filling layer, wherein the drainage tunnel (1) is arranged at the bottom of a tailing pond, the filling layer is arranged at the upstream of the drainage tunnel (1), and a plugging body (2) is arranged between the filling layer and the drainage tunnel (1);
The filling layer comprises a stone block layer (5) and a first gravel layer (8) which are arranged from bottom to top, one side of the first gravel layer (8) is adjacent to a side slope (13) at the bottom of a tailing pond, and a second seepage drainage pipe network (6) is arranged in the first gravel layer (8);
A fourth seepage drainage pipe network (4) and a first seepage drainage pipe network (15) are arranged in the stone block layer (5), and the water inlet end of the fourth seepage drainage pipe network (4) is arranged in a karst channel (12) at the bottom of the tailing pond;
The junction of the first gravel layer (8) and the side slope (13) is provided with a gravel collecting and infiltration side ditch (9), the inner side of the side slope (13) is provided with a side slope reverse filtering layer (10), the side slope reverse filtering layer (10) is connected with the gravel collecting and infiltration side ditch (9), and a third drainage pipe network (14) is arranged in the gravel collecting and infiltration side ditch (9); the water outlet ends of the first seepage drainage pipe network (15), the second seepage drainage pipe network (6), the third seepage drainage pipe network (14) and the fourth seepage drainage pipe network (4) penetrate through the plugging body (2) and extend outwards into the drainage tunnel (1).
2. The tailings pond drainage system of claim 1, wherein: karst passageway (12) top is equipped with karst shutoff body (11), fourth row oozes pipe network (4) including fourth row oozes and is responsible for and many fourth collection oozes the pipe, and the one end that many fourth collection oozes the pipe all runs through karst shutoff body (11), and the other end all is responsible for with the fourth row oozes and links to each other, and the play water end that the fourth row oozes the main pipe runs through shutoff body (2) outwards extends to in drainage tunnel (1).
3. The tailings pond drainage system of claim 1, wherein: the thickness of the stone block layer (5) is 1.5-5 m.
4. The tailings pond drainage system of claim 1, wherein: the first seepage drainage pipe network (15) comprises a first seepage drainage pipe and a plurality of first seepage collection pipes; one end of a plurality of first collecting seepage pipes is arranged in the stone block layer (5), the other ends of the first collecting seepage pipes are connected with the first seepage drainage pipes, and the water outlet ends of the first seepage drainage pipes penetrate through the plugging body (2) and extend outwards into the drainage tunnel (1).
5. The tailings pond drainage system of claim 1, wherein: a second gravel layer (7) is further arranged between the stone block layer (5) and the first gravel layer (8), the thickness of the second gravel layer (7) is 20-30 cm, and the particle size of broken stone adopted by the second gravel layer (7) is 20-50 mm.
6. The tailings pond drainage system of claim 1, wherein: the first gravel layer (8) comprises a composite geomembrane (81) and a gravel layer (82), wherein the composite geomembrane (81) is coated outside the gravel layer (82), and the thickness of the gravel layer (82) is 0.5-1.0 m.
7. The tailings pond drainage system of claim 6, wherein: the second seepage drainage pipe network (6) comprises a second seepage drainage pipe and a plurality of second seepage collection pipes, one ends of the second seepage collection pipes are arranged in the gravel layer (82), the other ends of the second seepage collection pipes are connected with the second seepage drainage pipe, and the water outlet ends of the second seepage drainage pipes penetrate through the plugging body (2) and extend outwards into the drainage tunnel (1).
8. The tailings pond drainage system of claim 1, wherein: the size of the broken stone collecting and infiltration side ditch (9) is not less than 1 x 1m, the particle size of broken stone filled in the broken stone collecting and infiltration side ditch (9) is 20-50 mm, and geotextile is wrapped outside the broken stone.
9. The tailings pond drainage system of claim 1, wherein: the thickness of the side slope reverse filtering layer (10) is 20-30 cm, the particle size of broken stone adopted in the side slope reverse filtering layer (10) is 20-50 mm, and the broken stone is wrapped with geotextile.
10. The tailings pond drainage system of claim 1, wherein: the first seepage drainage pipe network (15), the second seepage drainage pipe network (6), the third seepage drainage pipe network (14) and the fourth seepage drainage pipe network (4) are respectively provided with a valve (3) at the water outlet ends, the valves (3) are respectively arranged in the drainage tunnels (1), and the drainage tunnels (1) are arranged at the lowest positions of the bottom of the tailing pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323002938.0U CN220953750U (en) | 2023-11-07 | 2023-11-07 | Tailing pond drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323002938.0U CN220953750U (en) | 2023-11-07 | 2023-11-07 | Tailing pond drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220953750U true CN220953750U (en) | 2024-05-14 |
Family
ID=90974050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323002938.0U Active CN220953750U (en) | 2023-11-07 | 2023-11-07 | Tailing pond drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220953750U (en) |
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2023
- 2023-11-07 CN CN202323002938.0U patent/CN220953750U/en active Active
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