CN203701071U - Sub-dam of tailing dam - Google Patents
Sub-dam of tailing dam Download PDFInfo
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- CN203701071U CN203701071U CN201320833620.4U CN201320833620U CN203701071U CN 203701071 U CN203701071 U CN 203701071U CN 201320833620 U CN201320833620 U CN 201320833620U CN 203701071 U CN203701071 U CN 203701071U
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- dam
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- prefabricated component
- tailing
- mine tailing
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Abstract
The utility model relates to a sub-dam of a tailing dam, and belongs to the technical field of ore dam construction. The sub-dam of the tailing dam consists of sub-dam prefabricated members and draining well columns, and is built between a starter dam and a tailing piling dam, wherein the sub-dam prefabricated members are arranged from an initial installing point on the starter dam to the tailing piling dam in sequence, thereby constructing the dam body of the sub-dam; the cavities of the sub-dam prefabricated members are filled with soil bodies; the draining well columns are arranged inside the dam body of the sub-dam; when the elevation of the sub-dam constructed by the prefabricated members reaches the elevations of the draining well columns, the prefabricated members at corresponding positions are nested into the draining well columns. By adopting the sub-dam, the problems of severe sand blowing and unsmooth drainage and permeation in the dam body caused by fine particle tailings are solved, a seepage line is lowered effectively, the safety of a tailing pond is further ensured, and the general prejudice that the fine particle tailings are unsuitable to be directly piled on the dam in the prior art is eliminated. The sub-dam is suitable for constructing tailing dams in different environments and under different situations. Meanwhile, the sub-dam has the advantages of easiness, convenience and rapidness in construction, stability, safety and beautification of the environment.
Description
Technical field
The utility model relates to a kind of mine tailing embankment dam, belongs to dam, ore deposit and builds and build technical field.
Background technology
Tailings Dam refers to what build a dam the interception mouth of a valley or exclosure formed, carries out ore and sort the place of rear discharge mine tailing or other industrial residues in order to store up metal or non-metal mine.Tailings Dam is an artificial mud-rock flow dangerous matter sources with high potential energy, has dam break danger, once accident easily causes particularly serious accident.
Mine tailing refers to the ore that metal or non-metal mine are exploited out, " waste residue " discharging after valuable concentrate is selected in ore dressing plant.These mine tailings, because quantity is large, contain temporarily not treatable useful or harmful components, and arbitrarily discharge, will cause resource loss, be annihilated farmland or silt river course up, contaminated environment of large area.
Not only quantity is large for the mine tailing that ore dressing plant produces, and particle is thin, and often contains various medicaments in tailing water, if do not added processing, must cause and select factory's surrounding environment severe contamination.Mine tailing is properly stored in Tailings Dam, and tailing water is clarified rear recycle and reuse, effectively protection of the environment in storehouse.
It is water rich and influential family that ore dressing plant produces, and one ton of raw ore of common every processing needs 4～6 tons of waters; Some gravity separation is even up to 10～20 tons.These water enter in Tailings Dam with mine tailing, and after clarification and self-purification, most water can, for mineral processing production recycling, play the water supply alimentation of balance dry season insufficient water sources.General recycling water utilization rate reaches 70%～90%.
Some mine tailing also contains a large amount of valuable mineral compositions, or even rare and precious metal composition, for various reasons, cannot all select for the moment only, and it is stored in Tailings Dam temporarily, can treat to recycle in the future again.
Tailings Dam is the environmental engineering project of bargh's maximum.Can prevent that mine tailing Xiang Jiang, river, lake, sea, desert and grassland etc. from locating any discharge.As long as the ore dressing plant in a mine has mine tailing to produce, just must have Tailings Dam.Tailings Dam is that mine concentration is produced requisite ingredient thus.
The capital investment of Tailings Dam generally accounts for the more than 10% of mine construction gross investment, accounts for 20% left and right of ore dressing plant investment, and almost approaching of having even exceedes ore dressing plant investment.The running cost of mine tailing facility is also higher, and some mill tailings facility operation cost accounts for the more than 30% of ore dressing plant cost of production.In order to reduce running cost, the position of Tailings Dam is depended in the factory site, ore dressing plant in some mine.
Tailings Dam is a dangerous matter sources with the artificial mud-rock flow of high potential energy.Reach more than ten years even during many decades in, various naturally (rainwater, earthquake, rat holes etc.) and artificial (manage improperly, relationship between industry and agriculture is inharmonious etc.) unfavorable factor at every moment or is periodically threatening its safety.The fact shows again and again, once Tailings Dam accident will cause huge disaster and loss to industrial and agricultural production and downstream people's lives and properties.
In Tailings Dam, not only deposit the water that Tailings Slurry brings, and water in Tailings Dam catchment area all can enter Tailings Dam with the channel of direct runoff.In the time of design Tailings Dam, should calculate flood discharge by design specifications.In order to prevent fortuitous event, because the flood season direct runoff water yield is large, should build the irrigation canals and ditches that dam, a part of earth's surface runoff outside outbound is cut in upstream.In some tailing storehouses, build some catch pits along the longitudinal gradient direction of Tailings Dam, Jing Jing is connected, and by drainage underground pipe or escape canal, unnecessary primary water is discharged into outside storehouse.Tailings pile during to certain altitude from tailing dam end upstream in turn order seal the catch pit of having finished the work.In the time designing and construct this drainage, should take into full account that sewerage system bears the pressure of piling up mine tailing, collapses under pressure with waterproof and water drainage system, in order to avoid cause whole drainage system to scrap.
No matter adopt which kind of damming method, must strictly control by test result the granularmetric composition of piling the mine tailing of building sub-dam.Production practices prove, are less than the fine fraction mine tailing proportion of 37 microns when too high, will affect the stability on sub-dam.
Tailings Dam in process of production, more than the height of tailing dam will exceed the mine tailing constructional surface 1-2 rice of actual discharge in storehouse, the safety of guarantee tailing dam like this.If the dam crest height of the height of mine tailing constructional surface and tailing dam is very nearly the same, this is hazards, and a heavy rain may make mine tailing overflow dam crest, especially utilizes tailings pile to build the sub-dam stage and more will guarantee safe altitude.
Water in Tailings Dam constantly passes through dam body (bridge wall) and drains a part, and the dam body below discharge line is all moisture or by water-wet, conventionally claims that this discharge line is phreatic line.Phreatic line is lower, and dam is more stable.If phreatic line position reaches the crest elevation on the sub-dam of maximum layer, illustrate that tailing water has flooded the top on sub-dam, now tailing dam is in full saturation state, and there is the threat of possibility avalanche at any time in dam body.
The disposal options of China's mine tailing still saves as master with ground heap at present.Tailing dam is the structure of going along with sb. to guard him for block mine tailing and water, and tailing dam is mainly made up of initial dam, sub-dam and tailing dam.Wherein, sub-dam and tailing dam be along with the accumulation gradually of mine tailing in dynamic uphill process.This two-part structure not only has influence on the rate of climb of tailing dam, and affects stability and the safety of tailing dam.
Along with the progress of technique of preparing and the raising of recovery rate in ore-dressing, the mine tailing granularity producing is more and more thinner.Build the high dam that exceedes 60m for heap, mine tailing granularity-200 order content exceedes 80% mine tailing, it is generally acknowledged and is not suitable for directly piling dam with mine tailing.Meanwhile, fine grained mine tailing can produce that sand is serious, row in dam body ooze not smooth, thereby cause certain ambient influnence, be also unfavorable for effectively reducing phreatic line, and then affect the safety of Tailings Dam.The final piling height that adopts inclined to one side fine grained mine tailing to build a dam also can be extremely restricted, and for taking up an area larger Tailings Dam, is obviously uneconomic.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of mine tailing embankment dam, avoid fine grained mine tailing can produce the row of sand seriously and in dam body and oozed not smooth problem, be beneficial to effective reduction phreatic line, and then the safety of guarantee Tailings Dam, in existing technology, generally believe that fine grained mine tailing should not directly pile the prejudice on dam thereby overcome, be applicable to constructing of tailing dam in varying environment and situation.Meanwhile, the utility model also have advantages of build easy fast, stability and safety, beautify the environment.
For technical solution problem, the technical scheme that the utility model adopts: a kind of mine tailing embankment dam, described You Zi dam, mine tailing embankment dam prefabricated component 2 and catch pit post 4 form, mine tailing embankment dam is built between initial dam 1 and tailing dam 4, the installation initial point order of sub-dam prefabricated component 2 initial dam 1 is mounted to tailing dam 3, in the cavity of sub-dam prefabricated component 2, be filled with the soil body, catch pit post 4 is arranged on the dam body inside on sub-dam, when the sub-height of dam journey that group dam prefabricated component 2 forms reaches the elevation of catch pit post 4, the sub-dam prefabricated component 2 of correspondence position is nested on catch pit post 4.
In described initial dam, 1 installation initial point position is the dam crest centre of initial dam 1 or the dam crest two ends of initial dam 1.
Described sub-dam prefabricated component 2 comprises prefabricated component base 21, prefabricated component drain hole 22, prefabricated component interface 23, prefabricated component cavity 24; Prefabricated component base 21 is cuboid, and prefabricated component interface 23 is in the both sides of prefabricated component cavity 24, and the base plate of prefabricated component base 21 and prefabricated component cavity 24 is provided with prefabricated component drain hole 22.
Described prefabricated component interface 23 can adopt the mode of convex tenon and spill tenon.
Described prefabricated component interface 23 can adopt the mode of corbel type wedged interface.
Described prefabricated component base 21 can be entity structure, can be also hollow-core construction.
The soil body of described sub-dam prefabricated component cavity 24 interior fillings is clay, rubble, sandy soil or other local soil body material.
On the soil body of filling in described sub-dam prefabricated component cavity, plant the plant that flowers, plants and trees etc. can be beautified the environment.
Described catch pit post 4 is annular housing, and inside is catch pit 41, and catch pit post 4 is provided with drain hole 42 along hoop on different elevations.
The beneficial effects of the utility model: the row that the utility model has avoided fine grained mine tailing can produce in the serious and dam body of sand is oozed not smooth problem, be beneficial to effective reduction phreatic line, and then the safety of guarantee Tailings Dam, in existing technology, generally believe that fine grained mine tailing should not directly pile the prejudice on dam thereby overcome, be applicable to constructing of tailing dam in varying environment and situation.Meanwhile, the utility model also have advantages of build easy fast, stability and safety, beautify the environment.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that prefabricated units of the present utility model form sub-dam schematic diagram;
Fig. 3 is catch pit post schematic diagram of the present utility model;
Fig. 4 is sub-dam of the present utility model scheme of installation;
In figure: 1-initial dam; 2-dam prefabricated component; 21-prefabricated component base; 22-prefabricated component drain hole; 23-prefabricated component interface; 24-prefabricated component cavity; 3-tailing dam; 4-catch pit post; 41-catch pit; 42-drain hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further, to facilitate the technical staff to understand.
As shown in figs. 1 and 4: described You Zi dam, mine tailing embankment dam prefabricated component 2 and catch pit post 4 form, mine tailing embankment dam is built between initial dam 1 and tailing dam 4, the sub-dam installation initial point position of sub-dam prefabricated component 2 initial dam 1 starts to install prefabricated units and is mounted to tailing dam 3 in the mode of discharging one by one, interface is connected mutually, in installation process, along with the increase of mine tailing accumulation elevation, can adopt the one " full broken joint " of brick in building trade to install prefabricated units, can effectively promote the speed of building a dam; In the cavity of sub-dam prefabricated component 2, be filled with the soil body, both can have increased ballast, ensure the stability and safety of Tailings Dam, can on the soil body, plant according to local environment again corresponding flowers and plants, fine environment; Catch pit post 4 is arranged on the dam body inside on sub-dam, and when the sub-height of dam journey that group dam prefabricated component 2 forms reaches the elevation of catch pit post 4, the sub-dam prefabricated component 2 of correspondence position is nested on catch pit post 4, improves safety of dam body.
In the time that mine tailing is stacked into the crest elevation of initial dam 1, start antithetical phrase dam and carry out unwrapping wire location, in described initial dam, 1 installation initial point position can be the dam crest centre of initial dam 1 or the dam crest two ends of initial dam 1.
As shown in Figure 2, described sub-dam prefabricated component 2 comprises prefabricated component base 21, prefabricated component drain hole 22, prefabricated component interface 23, prefabricated component cavity 24; Prefabricated component base 21 is cuboid, and prefabricated component interface 23 is in the both sides of prefabricated component cavity 24, and the base plate of prefabricated component base 21 and prefabricated component cavity 24 is provided with prefabricated component drain hole 22.
Described prefabricated component interface 23 can adopt the mode of convex tenon and spill tenon.
Described prefabricated component interface 23 can adopt the mode of corbel type wedged interface.
Described prefabricated component base 21 can be entity structure, can be also hollow-core construction, and concrete selection can determine according to local processing technology.
Can select clay, rubble, sandy soil or other local soil body material in described sub-dam prefabricated component cavity 24 are filled as filler.
On the soil body of filling in described sub-dam prefabricated component cavity, plant the plant that flowers, plants and trees etc. can be beautified the environment, be conducive to improve natural environment.
As shown in Figure 3, described catch pit post 4 is annular housing, and inside is catch pit 41, and catch pit post 4 is provided with drain hole 42 along hoop on different elevations, for water is come together in well, effectively reduces phreatic line.
The position of described catch pit post 4 and quantity can and be stablized and design and calculate according to seepage flow.
The row that the utility model has avoided fine grained mine tailing can produce in the serious and dam body of sand is oozed not smooth problem, be beneficial to effective reduction phreatic line, and then the safety of guarantee Tailings Dam, in existing technology, generally believe that fine grained mine tailing should not directly pile the prejudice on dam thereby overcome, be applicable to constructing of tailing dam in varying environment and situation.Meanwhile, the utility model also have advantages of build easy fast, stability and safety, beautify the environment.
The utility model describes by accompanying drawing, in the situation that not departing from the utility model scope, can also carry out various conversion and be equal to replacement the utility model patent, therefore, the utility model patent is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall within the scope of the utility model Patent right requirement.
Claims (7)
1. a mine tailing embankment dam, it is characterized in that: described mine tailing embankment dam You Zi dam prefabricated component and catch pit post form, build between initial dam and tailing dam, the sub-dam prefabricated component that the dam body on sub-dam is installed to tailing dam order by the installation initial point initial dam forms, in sub-dam prefabricated component cavity, be filled with the soil body, catch pit post is arranged on the dam body inside on sub-dam, and sub-height of dam journey equates with catch pit post elevation, and prefabricated units are nested on catch pit post.
2. a kind of mine tailing embankment dam as described in claim 1, is characterized in that: the installation initial point position in initial dam is in the middle of initial dam dam crest or initial stage dam crest two ends.
3. a kind of mine tailing embankment dam as described in claim 1, is characterized in that: described sub-dam prefabricated component comprises prefabricated component base, prefabricated component drain hole, prefabricated component interface, prefabricated component cavity; Prefabricated component base is cuboid, and prefabricated component interface is in the both sides of prefabricated component cavity, and the base plate of prefabricated component base and prefabricated component cavity is provided with prefabricated component drain hole.
4. a kind of mine tailing embankment as claimed in claim 3 dam, is characterized in that: described prefabricated component interface adopts the mode of convex tenon and spill tenon.
5. a kind of mine tailing embankment as claimed in claim 3 dam, described prefabricated component interface adopts the mode of corbel type wedged interface.
6. a kind of mine tailing embankment as claimed in claim 3 dam, prefabricated component base is entity structure or hollow-core construction.
7. a kind of mine tailing embankment dam as described in claim 1, is characterized in that: described catch pit post is annular housing, and inside is catch pit, and catch pit post is provided with drain hole along hoop on different elevations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833620.4U CN203701071U (en) | 2013-12-18 | 2013-12-18 | Sub-dam of tailing dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833620.4U CN203701071U (en) | 2013-12-18 | 2013-12-18 | Sub-dam of tailing dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203701071U true CN203701071U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320833620.4U Expired - Fee Related CN203701071U (en) | 2013-12-18 | 2013-12-18 | Sub-dam of tailing dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203701071U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264690A (en) * | 2014-09-01 | 2015-01-07 | 湖南辰州矿业股份有限公司 | Method for increasing volume of tailings pond for mine enterprise |
| CN114382060A (en) * | 2022-02-22 | 2022-04-22 | 中煤地生态环境科技有限公司 | Novel tailing dam |
-
2013
- 2013-12-18 CN CN201320833620.4U patent/CN203701071U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264690A (en) * | 2014-09-01 | 2015-01-07 | 湖南辰州矿业股份有限公司 | Method for increasing volume of tailings pond for mine enterprise |
| CN114382060A (en) * | 2022-02-22 | 2022-04-22 | 中煤地生态环境科技有限公司 | Novel tailing dam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |