CN114775511A - Tailings pond water-resisting flood discharge system for on-site treatment and decontamination of tailings pond - Google Patents
Tailings pond water-resisting flood discharge system for on-site treatment and decontamination of tailings pond Download PDFInfo
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- CN114775511A CN114775511A CN202210327970.7A CN202210327970A CN114775511A CN 114775511 A CN114775511 A CN 114775511A CN 202210327970 A CN202210327970 A CN 202210327970A CN 114775511 A CN114775511 A CN 114775511A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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Abstract
The invention relates to a water-proof flood discharge system for a local treatment and elimination reservoir of a tailing reservoir, which comprises a reservoir outer water-proof flood discharge device, a reservoir periphery water-proof flood discharge device and a reservoir inner water-proof flood discharge device which are sequentially arranged from outside to inside, the flood discharge device comprises flood cut ditches outside the reservoir and flood dissipation ponds outside the reservoir, the flood discharge device around the reservoir comprises flood cut ditches around the reservoir which are built on the bedrock of the mountain body, the junction point of the central axis of the tailing pond and the tailing of the tailing pond is arranged towards the two sides of the tailing pond according to the gradient of 1.5 percent flowing water, the water-proof flood discharge device in the reservoir comprises a water-proof flood discharge device at a drainage ditch on the beach surface in the reservoir and a water-proof flood discharge device at a drainage ditch of the accumulation dam, the water-proof flood discharge device of the drainage ditch on the inner beach surface of the reservoir is communicated with the circumferential flood discharge ditches of the reservoir, the water-proof flood discharge device of the drainage ditch of the accumulation dam is communicated with the drainage ditch of the dam abutment, and the circumferential flood discharge ditches of the reservoir are communicated with the drainage ditch of the dam abutment. The invention can isolate atmospheric precipitation in the mine and discharge the atmospheric precipitation out of the mine, thereby realizing the treatment and sale of tailings.
Description
Technical Field
The invention relates to the technical field of tailing ponds, in particular to a water-proof flood discharge system for a tailing pond in-situ treatment and elimination pond.
Background
Tailings generated in mine development and mineral processing are mostly particles with the diameter smaller than 5mm, and basically, tailings reservoirs are built nearby and are stacked in a centralized mode. More than 2000 tailings ponds in China have potential safety hazards, and the technical difficulty in treatment and sale of the tailings ponds is high, so that the potential safety hazards are great.
On one hand, the tailings in the tailing pond are stacked on the ground surface in the open without being treated, the tailings are oxidized, hydrolyzed and weathered, so that the original pollution-free components are changed into pollution components, and the tailings on the surface can be continuously blown to peripheral areas in windy weather; meanwhile, atmospheric precipitation flowing through the tailing pond is interacted with the tailings to dissolve certain harmful components, and the atmospheric precipitation is carried and transferred to enlarge a pollution surface, so that soil pollution, land degradation and vegetation damage of the area are caused, and adverse effects such as pollution and damage to the surrounding ecological environment are caused.
On the other hand, the tailings have the characteristic of easy flowing, the tailings are easy to slide and collapse after being stacked for a long time, particularly, once a tailing pond with the height of more than 30m encounters extreme stormy weather and flood, the tailings become artificial debris flow, and the damage and the influence caused by the artificial debris flow are quite huge. If the tailing pond meets the condition of water collection and seepage of extra-large mountain floods, tailing in the tailing pond can be leaked and broken, and even collapse accidents of the tailing pond can happen, so that serious damage and social influence can be caused to the property and life safety of people in peripheral regions.
At present, the technical means of treating and selling the tailings pond are mainly realized by back mining and cleaning the tailings pond, and the investment is large and the adaptability is poor. Usually, the properties of the tailing pond are changed and then the tailing pond is sold only after closed pond treatment if the condition of mining and cleaning is rare. China has broad territory, various mineral products and various types of tailing ponds, one governing technology cannot become a 'Lingdan wonderful medicine' for governing and selling all tailing ponds, but the governing technology is common and is necessary to discharge flood over water. However, at the present stage, there is no better technical means to achieve the universal flood discharge preventing and treating effect for the tailing pond, and a solution is needed.
Disclosure of Invention
The invention aims at the problems and provides a water-proof flood discharge system for the on-site treatment and elimination of the tailing pond, which can isolate and discharge atmospheric precipitation in the pond out of the pond, thereby achieving the purposes of tailing treatment and sale and once and for all.
The invention adopts the following technical scheme: a water-proof flood discharge system for in-situ treatment and elimination of a tailing pond, which is characterized by comprising a water-proof flood discharge device outside the pond, a water-proof flood discharge device around the pond and a water-proof flood discharge device inside the pond which are arranged in sequence from outside to inside, the flood discharge device comprises flood cut ditches outside the reservoir and flood dissipation ponds outside the reservoir, the flood discharge device around the reservoir comprises flood cut ditches around the reservoir which are built on the bedrock of the mountain body, the junction point of the central axis of the tailing pond and the tailing of the tailing pond is arranged towards the two sides of the tailing pond according to the gradient of 1.5 percent flowing water, the water-isolating flood discharging device in the reservoir comprises a water-isolating flood discharging device of a drainage ditch on the beach surface in the reservoir and a water-isolating flood discharging device of a drainage ditch of a stacking dam, the water-proof flood discharge device of the drainage ditch on the inner beach surface of the reservoir is communicated with the circumferential flood interception ditches of the reservoir, the water-proof flood discharge device of the drainage ditch of the accumulation dam is communicated with the drainage ditch of the dam abutment, and the circumferential flood interception ditches of the reservoir are communicated with the drainage ditch of the dam abutment.
Preferably, the water-resisting flood discharge device for the drainage ditches of the sub-dam of the accumulation dam is of a stepped flood-intercepting dam structure, the drainage ditches are arranged on each step, and the drainage ditches are arranged on the two axial sides of the tailing pond at a drainage gradient of 1% and communicated with the drainage ditches of the dam abutment.
Preferably, the water-resisting flood discharge device for the drainage ditches on the inner beach surface comprises at least two groups of criss-cross drainage ditches, one group of drainage ditches are arranged in a manner that the drainage ditches on the inner beach surface is arranged in a manner that the drainage ditches on the inner beach surface are arranged in a manner that the longitudinal direction of the inner beach surface is arranged in front of the tail dam according to the gradient of 1.5% flowing water, and the other group is arranged in a manner that the drainage ditches on the inner beach surface are arranged in a manner that the middle axis is arranged in a manner that the inner beach surface is arranged in a manner that the two sides according to the gradient of the flow of the dam according to the gradient of the water.
Preferably, the device also comprises a water-resisting flood discharge device for soil seepage prevention and greening of the beach surface in the warehouse, wherein the water-resisting flood discharge device comprises a water-resisting layer arranged on a tailing layer, a planting soil layer is arranged on the water-resisting layer, and various restoration plants are planted.
Preferably, the warehouse-out water-proof flood discharge device further comprises a warehouse-out mountain flood barrier wall arranged close to the warehouse-around flood cut ditches, the warehouse-out mountain flood barrier wall is integrally cast by C25 reinforced concrete and is higher than the surface of the mountain, water catchment ditches are cast on one side of the mountain, water discharge holes are arranged at intervals, and gravel filter bags are placed on the outer side of the water catchment ditches.
Preferably, the mountain torrent stilling pool outside the reservoir is arranged at a mountain torrent catchment position, the stilling pool is in two forms and is arranged along the water flowing direction, the middle of the stilling pool is separated by an overflow wall, the front end of the stilling pool is a water collecting pool, and the rear end of the stilling pool is an overflow pool communicated with the flood cut-off ditch around the reservoir.
Preferably, the communicated part of the overflow pool and the flood intercepting ditch around the reservoir is arranged in a herringbone manner, so that the flood impact is divided.
Preferably, pipelines are arranged on the drainage ditch of the beach surface in the storehouse and the drainage ditches of the flood interception of the periphery of the storehouse to drain beach surface water.
Preferably, a plurality of PVC pipes are arranged on one side of the beach surface of the tailing pond at least 1200mm away from the bottom, a layer of 400g/m geotextile +20cm thick gravel water filtering structure is further arranged on one side of each PVC pipe close to the beach surface, and drainage holes are formed in the side of a mountain.
Preferably, the warehouse periphery cut-off flood trench comprises a rock block cushion layer arranged on the bedrock, a C15-grade rubble concrete cushion layer cast on the rock block cushion layer, and a C25 reinforced concrete warehouse periphery cut-off flood trench cast on the concrete cushion layer.
The invention has the beneficial effects that: the method comprises the steps of enhancing the safety condition of a tailing pond by technical means of reinforcing and renovating a dam body of the tailing pond, setting a water-proof flood discharge system and the like, changing the property of the tailing pond into available land by a tailing pond selling program, covering soil on the beach surface of the tailing pond, building four-season flower valleys, azalea valleys, colorful green draining footpaths and the like, successfully changing the difficult problem of the tailing pond into an urban forest park, and completely copying and applying an engineering mode and an engineering technology of the urban forest park.
According to the invention, the water-proof flood discharge device is implemented on the tailing pond, and the subsequent pond sale is changed into an urban forest public garden in a green recovery way, so that the waste is changed into valuable, the harm is changed into benefit, the danger source of the tailing pond is eliminated, the ecological environment condition is restored, and the safety of surrounding people is improved.
Drawings
Fig. 1 is a schematic diagram of the overall layout structure of the present invention.
Fig. 2 is a schematic structural view of the flood interception ditch around the reservoir.
FIG. 3 is a schematic view of the structure of the drainage ditch on the inner beach surface of the warehouse.
Fig. 4 is a schematic layout view of the seepage-proofing, greening, water-resisting and flood-discharging device for soil on the beach surface in the warehouse.
Fig. 5 is a schematic structural view of a drainage ditch of the accumulation dam of the present invention.
FIG. 6 is a schematic view of the arrangement structure of the flood intercepting trench outside the warehouse
Fig. 7 is a schematic view of the arrangement structure of the flood-stopping wall outside the reservoir.
Fig. 8 is a schematic top view of the flood-fighting basin outside the reservoir.
Fig. 9 is a schematic sectional structure view of the flood-fighting pool outside the reservoir.
Fig. 10 is a top view of an engineering scenario for successful reconstruction of a tailings pond using the technique of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples.
In the embodiment shown in fig. 1, the invention is provided with an external flood isolating and discharging device, a peripheral flood isolating and discharging device and an internal flood isolating and discharging device in sequence from outside to inside, wherein the external flood isolating and discharging device comprises an external flood intercepting ditch 1, an external flood intercepting wall 3 and an external flood dissipating pond 4, the peripheral flood isolating and discharging device comprises a peripheral flood intercepting ditch 2 built on a foundation rock of a mountain body, the internal flood isolating and discharging device comprises an internal flood isolating and discharging device 5 of a beach face drainage ditch and a water isolating and discharging device 7 of a stacking dam, the internal flood isolating and discharging device of the beach face drainage ditch is communicated with the peripheral flood intercepting ditch, the water isolating and discharging device of the stacking dam drainage ditch is communicated with a dam abutment drainage ditch 8, and the peripheral flood intercepting and discharging ditch of the reservoir is connected with a dam drainage ditch through a culvert pipe and a diversion pond. One way of the tail end of the dam shoulder drainage ditch is directly connected with the drainage open channel 9, the other way of the tail end of the dam shoulder drainage ditch is connected with the stilling pool at the dam bottom, and water flows into the drainage open channel through the stilling pool.
As shown in fig. 2, the circumferential cut flood ditches of the mine tailings pond are arranged at the junction point of the central axis of the mine tailings pond and the tail of the mine tailings pond according to the gradient of 1.5% of flowing water towards the two sides of the mine tailings pond to prevent the circumferential cut flood ditches of the mine tailings pond from involving the tailings sand, and the foundation excavation must be dug to the mountain bedrock at the edge of the mine tailings pond.
In one embodiment, the flood interception ditch around the reservoir is formed by paving a 200mm thick rock block cushion layer 10 on bedrock and then pouring a 100mm thick C15-grade rubble concrete cushion layer 11 foundation; c25 reinforced concrete 13-warehouse circumferential cut flood ditches with the specification of a clean section of 1750mm multiplied by 1800mm are poured on the foundation;
At one side of the beach surface of the tailing pond and 1500mm away from the bottom, phi 110mm PVC pipes 15 are arranged at a horizontal interval of 1.0m, so that beach surface water can be conveniently drained and seeped to a flood interception ditch, and one side of each PVC pipe close to the beach surface is also provided with 1 layer of 400g/m geotextile and 20cm thick gravel 16 for water filtration, so that the PVC pipe is prevented from being blocked; the mountain side can be provided with the drainage holes according to needs.
As shown in fig. 3, the water-resisting flood discharge device for the drainage ditch on the inner beach surface is characterized in that the beach surface is finished according to the slope of 1.5% running water in the longitudinal direction of the beach surface and the slope of 1% running water in the transverse direction and the axial direction at two sides of the beach surface;
As shown in fig. 1 and fig. 4, in one embodiment, the system further comprises a flood discharge device 6 for soil anti-seepage greening and water-proof of the bank surface in the reservoir, which comprises a water-proof layer 18 arranged on a tailing layer 17, and a planting soil layer 19 arranged on the water-proof layer for planting various repairing plants.
The method specifically comprises the steps of tamping actual clay 100mm on the beach surface of a tailing pond, isolating planting soil and tailings, facilitating rooting growth, and simultaneously serving as an impermeable layer to prevent rainwater from seeping; 300-400mm planting soil is laid on the isolation layer, plants such as ryegrass, green grass and reed are planted to absorb harmful elements in tailings for ecological restoration, and seedlings such as trees are planted to thoroughly seal the tailings under green planting, so that environmental pollution is avoided;
redundant rainwater in the planting soil layer flows into the beach surface drainage ditch through the beach surface drainage holes, and the rainwater is reduced to enter the tailing sand.
As shown in fig. 5, a concrete structural schematic diagram of the drainage ditch of the stacking dam is shown, and the tailing dam is easy to slide down due to large slope, so that the step-shaped 21 transformation is performed; specifically, the axial two sides in the tailing pond are arranged in a 1% drainage gradient and communicated with a dam abutment drainage ditch. The grouted blockstones construct an upper-level sub-dam outer side retaining wall 20, and the height and the width of the retaining wall are 1000mm and 300 mm; the drainage ditch of the stacked dam adopts C25 concrete for pouring 13, and the specification of the net section is 300mm multiplied by 300 mm. The foundation of the retaining wall and the drainage ditch of the stacked dam on the outer side of the sub-dam is a C15 rubble concrete cushion layer 11 with the thickness of 100 mm. And (5) tamping a water-resisting layer on the dam surface, wherein the planting soil is the same as the beach surface. The step flood-intercepting dam structure can reduce the work amount of pouring the dam body, avoid the working procedure of removing the dam body, avoid unnecessary resource and manpower waste and realize flexible adjustment of upstream and downstream water amount.
As shown in fig. 1 and fig. 6, a flood interception ditch water-proof flood discharge device is arranged on a mountain around a tailing pond to serve as a first safe defense line for the safety of the tailing pond; the arrangement and specification of the flood intercepting ditches outside the reservoir are determined according to the mountain and catchment conditions, the specification of the net section is not less than 800mm multiplied by 800mm, C25 concrete is poured, and a C15 concrete cushion layer with the thickness of 100mm is formed; the flood interception ditch outside the mine can be directly discharged out of the mine tailing mine or can be connected with the flood interception ditch around the mine tailing mine.
As shown in fig. 7, the flood intercepting wall 3 is arranged outside the flood intercepting ditches around the mine, one side of the flood intercepting wall 3 faces the mountain 23, and the other side faces the flood intercepting ditches around the mine, so that upstream mountain debris flow of the tailing pond can be effectively prevented; the concrete scheme is that mountain bedrocks are required to be found in foundation excavation, and the stability of the foundation of the flood retaining wall outside the reservoir is ensured; integrally pouring C25 reinforced concrete 13 with the height slightly higher than the mountain surface; a catchwater ditch is poured on one side of the mountain, drain holes 22 (multiple rows can be arranged according to the height) are arranged at intervals of 1000mm, and gravel filter bags are arranged on the outer side of the catchwater ditch.
As shown in fig. 8, in order to prevent the torrential flood, an external torrential flood eliminating pool is arranged at the flood catchment position; in one embodiment, the stilling pool is in two forms and is arranged along the flowing water direction, the middle of the stilling pool is separated by an overflow wall 26, and the height of the overflow wall is required to be more than or equal to 1500mm but not higher than the height of the stilling pool according to the mountain condition. The front end of the stilling pool is a water collecting pool 24, the specification is 3500mm multiplied by 2500mm multiplied by 2400mm (the height is determined according to the elevation of the mountain terrain on site) according to the catchment area, and C25 reinforced concrete is poured; the rear end of the stilling pool is provided with an overflow pool 25 which is communicated with flood intercepting ditches at the periphery of the reservoir, the net specification is 3500mm, 2000mm and 2400mm (the height is determined according to the terrain elevation of a mountain on site), and C25 reinforced concrete is poured;
as shown in fig. 9, in one embodiment, the communication position between the overflow pool and the flood interception ditches 2 around the warehouse is arranged in a shape of a Chinese character 'ren', and the two water channels are respectively provided with the diving steps 27, so that the energy of the mountain torrents directly impacting the flood interception ditches around the warehouse can be effectively dispersed, the specification of the net section is 1750mm × 1600mm, and the C25 reinforced concrete is poured; the absorption basin usually stores water and can provide an irrigation water source for the tailing pond after greening.
The invention mainly uses devices such as flood intercepting ditches outside the mine, flood intercepting ditches around the mine, flood blocking walls outside the mine, flood dissipating force ponds outside the mine to isolate and discharge atmospheric precipitation in a catchment area of the mine and the like out of the mine, and then uses devices such as drainage ditches on the beach surface in the mine, soil seepage prevention and greening on the beach surface, drainage ditches on piled dams and the like to isolate and discharge the atmospheric precipitation in the mine and the like out of the mine, thereby realizing the aims of managing and selling the mine for mine tailings once and for all. The specific summary is as follows:
firstly, a water-proof flood discharge device is built outside a tailing pond, and a first safety defense line of the tailing pond is built. The technology comprises three structures of a flood interception ditch water-proof flood discharge device outside a reservoir, a mountain flood interception wall water-proof flood discharge device outside the reservoir and a mountain flood absorption pond water-proof flood discharge device outside the reservoir;
and secondly, constructing a water-resisting flood discharge device around the tailings pond to build the most important safety line of the tailings pond. The periphery of the reservoir is a part where the tailing sand contacts with a mountain, and the key of the engineering technology is that a flood interception ditch foundation must be built on bedrock of the mountain and cannot relate to the tailing sand, otherwise, the tailing reservoir is filled with water, and the purpose of water isolation and flood discharge cannot be achieved;
thirdly, a water-separating flood-discharging device in the tailing pond is used for building the most basic safety defense line of the tailing pond. Not only the different positions of the beach surface and the sub-dam are considered, but also the possibility of recycling the land of the tailing pond is considered. The water-proof flood discharge device in the reservoir comprises three structures, namely a beach surface drainage ditch water-proof flood discharge device, a beach surface soil seepage-proof greening water-proof flood discharge device and a stacking dam drainage ditch water-proof flood discharge device.
The invention aims at the actual situation that the tailings pond is closed to treat and change the properties of the tailings pond and then the tailings pond is sold, and water-resisting and flood-discharging measures are adopted according to local conditions, so that the safety and stability conditions of the tailings pond are improved. As long as the core of the technology is fully applied, and proper adjustment is carried out according to local conditions of each tailing pond, good engineering conditions can be provided for the treatment and sale of the tailing ponds.
As shown in fig. 10, the city forest park engineering construction map after applying the reservoir-eliminating water-proof flood discharge system to the lead-zinc mine tailing reservoir in Qingyuan county to control the sale reservoir is realized by the invention, and the pollution of the tailing reservoir to the surrounding environment and the potential safety hazard of the tailing reservoir to the self are eliminated.
The method comprises the steps of constructing a flood intercepting ditch, a shoal surface drainage ditch and a shoal surface in a tailing pond, covering soil and re-greening, planting plants for absorbing heavy metal and a four-season flower valley landscape, constructing a park green land with the area as high as 12000 square meters, and changing waste tailing ponds from Xitian into urban forest parks by ' strengthening the body and strengthening bones ' and greening and regenerating, so that ' waste materials are changed into ' urban forest parks ', meanwhile, the concept of ' two mountains ' is perfectly trampled, and the quality of the tailing pond is improved to the forest parks.
It should be understood that these embodiments are merely illustrative of the present invention and do not limit the scope of the present invention. Furthermore, it should be understood that various modifications and combinations of the present invention can be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the claims appended hereto.
Claims (10)
1. A water-proof flood discharge system for on-site treatment and decontamination of a tailing pond is characterized by comprising a water-proof flood discharge device outside the pond, a water-proof flood discharge device around the pond and a water-proof flood discharge device inside the pond which are arranged from outside to inside in sequence, the flood discharge device comprises flood intercepting ditches outside the reservoir and flood discharging ponds outside the reservoir, the flood discharge device for the water at the periphery of the reservoir comprises flood intercepting ditches at the periphery of the reservoir, which are built on the bedrock of the mountain body, the junction point of the central axis of the tailing pond and the tailing of the tailing pond is arranged towards the two sides of the tailing pond according to the gradient of 1.5 percent flowing water, the water-proof flood discharge device in the reservoir comprises a water-proof flood discharge device at a drainage ditch on the beach surface in the reservoir and a water-proof flood discharge device at a drainage ditch of the accumulation dam, the water-proof flood discharge device of the drainage ditch on the inner beach surface of the reservoir is communicated with the peripheral flood cut-off ditches of the reservoir, the water-proof flood discharge device of the drainage ditch of the stacking dam and the dam abutment drainage ditch is communicated with the dam abutment drainage ditch, and the peripheral flood cut-off ditches of the reservoir are communicated with the dam abutment drainage ditch.
2. The tailings pond on-site remediation and depuration water-resisting flood discharge system of claim 1, wherein the water-resisting flood discharge device of the drainage ditch of the sub-dam of the accumulation dam is of a step flood-intercepting dam structure, the drainage ditch is arranged on each step, and the drainage ditch is communicated with the drainage ditch of the dam abutment by arranging the drainage ditches on two axial sides of the tailings pond at a drainage gradient of 1%.
3. The tailings pond in-situ remediation and depuration water-resisting flood discharge system of any one of claims 1 to 2, wherein the water-resisting flood discharge device of the drainage ditch on the beach surface in the tailings pond comprises at least two groups of drainage ditches which are criss-cross, one group of drainage ditches are arranged in a manner that the beach surface is arranged in a manner that the drainage ditches on the longitudinal direction of the beach surface are arranged in a manner that the drainage ditches on the tail surface are arranged in front of the dam and the other group of drainage ditches are arranged in a manner that the beach surface is arranged on the axial direction of the middle axle and on both sides in a manner that the drainage slopes of the drainage water are arranged in a manner that the beach surface is arranged in a manner that the water slope of the water flows on the 1% of the middle axle.
4. The tailings pond on-site treatment and disinfection warehouse water-proof flood discharge system of claim 1, which is characterized by further comprising a water-proof and greening water-proof flood discharge device for soil seepage prevention and greening on the beach surface in the warehouse, wherein the water-proof layer is arranged on the tailings layer, and a planting soil layer is arranged on the water-proof layer for planting various kinds of repairable plants.
5. The mine waste reservoir water-stop flood discharge system according to claim 1, wherein the reservoir water-stop flood discharge device further comprises a reservoir flood-stop wall arranged close to the flood cut ditches around the reservoir, the reservoir flood-stop wall is integrally cast by C25 reinforced concrete and is higher than the ground surface of the mountain, the water collection ditches are cast on one side of the mountain, the drain holes are arranged at intervals, and the gravel filter bag is arranged on the outer side of the mountain.
6. The system according to claim 1, wherein the flood discharging ponds are arranged at the flood catchments, are of two-dimensional type and are arranged along the flowing direction, and are separated by overflow walls in the middle, and the front ends of the flood discharging ponds are water collecting ponds and the rear ends of the flood discharging ponds are overflow ponds connected with the flood cut ditches around the mine.
7. The tailings pond on-site treatment and depuration warehouse water-stop flood discharge system according to claim 6, wherein the communication part between the overflow pond and the dam periphery flood interception ditch is arranged in a herringbone manner to distribute flood momentum.
8. The system of claim 4, wherein the drainage channels are arranged on the circumferential flood intercepting ditches and the inner beach surface drainage ditches to drain the beach surface water.
9. The system according to claim 8, wherein a plurality of PVC pipes are horizontally arranged on the intercepting flood ditches at the periphery of the mine tailing pond at a distance of at least 1200mm from the bottom on the beach surface side of the mine tailing pond, a layer of 400g/m geotextile +20cm thick gravel water filtering structure is further arranged on one side of each PVC pipe close to the beach surface, and drainage holes are arranged on the mountain side.
10. The system according to claim 1, wherein the tailings pond in-situ remediation and depopulation flood discharge system comprises a rock block cushion layer arranged on bedrock, a C15-grade rubble concrete cushion layer is poured on the rock block cushion layer, and a C25 reinforced concrete pond peripheral flood discharge ditch is poured on the concrete cushion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327970.7A CN114775511A (en) | 2022-03-30 | 2022-03-30 | Tailings pond water-resisting flood discharge system for on-site treatment and decontamination of tailings pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327970.7A CN114775511A (en) | 2022-03-30 | 2022-03-30 | Tailings pond water-resisting flood discharge system for on-site treatment and decontamination of tailings pond |
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| Publication Number | Publication Date |
|---|---|
| CN114775511A true CN114775511A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210327970.7A Pending CN114775511A (en) | 2022-03-30 | 2022-03-30 | Tailings pond water-resisting flood discharge system for on-site treatment and decontamination of tailings pond |
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| CN (1) | CN114775511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492131A (en) * | 2022-08-23 | 2022-12-20 | 攀钢集团矿业有限公司 | Embankment type soil covering method and device for tailing pond closed tail weak beach face |
-
2022
- 2022-03-30 CN CN202210327970.7A patent/CN114775511A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492131A (en) * | 2022-08-23 | 2022-12-20 | 攀钢集团矿业有限公司 | Embankment type soil covering method and device for tailing pond closed tail weak beach face |
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