CN101629417A - Chemical siltation resisting drainage device for tailing dam - Google Patents
Chemical siltation resisting drainage device for tailing dam Download PDFInfo
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- CN101629417A CN101629417A CN200910063626A CN200910063626A CN101629417A CN 101629417 A CN101629417 A CN 101629417A CN 200910063626 A CN200910063626 A CN 200910063626A CN 200910063626 A CN200910063626 A CN 200910063626A CN 101629417 A CN101629417 A CN 101629417A
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Abstract
The invention discloses a chemical siltation resisting drainage device for a tailing dam, comprising a drainage pipe, a siltation resisting trough, water seepage holes, water seepage troughs and geotextiles. The invention is characterized in that the drainage pipe is a circular pipe, and the end part of the pipe is provided with the water seepage troughs and the water seepage holes, and the water seepage troughs are tightly wrapped by the geotextiles; the siltation resisting trough is a rectangular box body having no cover, and the front end of the box body is provided with a circular hole having the same pipe diameter as the drainage pipe; the drainage pipe is obliquely arranged in the siltation resisting trough of the box body at an inclination angle so as to prevent the geotextiles from generating chemical siltation and ensure that the dam body can drain normally. The chemical siltation resisting drainage device has the advantages of simple structure, high effectiveness, low cost and convenient use, and ensures that the geotextiles do not alternate between saturation and nonsaturation, thus preventing the geotextiles from generating chemical siltation. By using the chemical siltation resisting drainage device, the drainage capability of the dam is reinforced, thus ensuring smooth drainage, reducing the seepage line of the dam effectively and accordingly lowering the operation risk of the tailing dam.
Description
Technical field
The present invention relates to that industrial ore dressing plant abandons that mine tailing or thermal power generation industry are piled up residual thing and the row of the tailing dam that forms is oozed technical field, more specifically relate to the row that chemical silting takes place in a kind of row's infiltrate journey that prevents tailing dam and ooze device.By oozing anti-silt groove is set in the system, is immersed in all the time below the anti-silt groove waterline to guarantee geotextile, thereby prevents that effectively drainage pipe from chemical silting taking place row.
Background technology
Tailing dam is the critical facility of all kinds of ore dressing plants of metallurgical industry, steam power station capital construction, is the important step that guarantees all kinds of ore dressing plants, steam power station ordinary production.Because have a large amount of CHARACTERISTICS OF TAILINGS SAND and water in the dam, in a single day dam body bursts, CHARACTERISTICS OF TAILINGS SAND in the dam and water just will be gushed out with the form of mud-rock flow, and the consequence that causes is with hardly imaginable.Now, construction and production-scale increase day by day along with all kinds of factories and miness and power plant, the grey quantity of slag that discharge mine tailing amount that discharge in the ore dressing plant and power plant also sharply increases, so cause manyly becoming increasingly conspicuous about tailing dam and ash dyke safety and environmental issue, being in danger of tailing dam, cave in, serious accident such as dam break happens occasionally.In addition, owing to enlarge the problem of storage capacity and left over by history such as prolonging length of service, tailing dam moves in spite of illness, has more hidden danger.Above-mentioned exist one of potential safety hazard very important reasons be that the row of tailing dam is oozed and taken effective measures, water seepage drainage effect is bad, causes dam body pressure excessive, and the seepage phenomenon takes place.The current technical measures that this is mainly taked are to adopt geotextile to reduce water level as the horizontal drainage pipe of filtering layer.The defective that this kind method exists is: replace with unsaturation saturated that chemical silting phenomenon appears in nonweaven geotextile under the change condition.This will cause the water seepage drainage effect of tailing dam poor, and dam seepage line raises, and water oozes out from the dam slope face, and seepage and failure by piping are concentrated in the also generation that has, and seriously influence the safety of dam body.According to silting mechanism: the geotextile silting mainly is that the chemical silting phenomenon that chemical reaction causes takes place.The condition of its chemical silting is: replace in saturated and unsaturation that apparent in view chemical silting phenomenon can take place nonweaven geotextile under the change condition, this mainly is airborne O under operate under unsaturated conditions
2Accelerated Fe (OH)
3Formation speed, cause Fe (OH)
3Gel sticks on the fiber of geotextile and the silting phenomenon occurs.Yet under the saturated flow condition that continues, chemical silting can not take place in nonweaven geotextile.
Summary of the invention
The objective of the invention is to be to provide a kind of chemical siltation resisting drainage device of tailing dam, this apparatus structure is simple, and is easy to use.This row is oozed the row that device mainly is implemented on tailing dam and is oozed in the system, has avoided the silting phenomenon as the geotextile of filtering layer.
In order to realize above-mentioned purpose, the present invention adopts following technical measures:
The mechanism that the present invention is based on the chemical silting of generation has proposed the new row of a cover and has oozed system, and this system is when the dam body water level is higher, and underground infiltration can be discharged to outside the dam by horizontal drainage pipe under the differential water pressures effect voluntarily; When the dam body water level is low, anti-silt groove is in below the anti-silt groove waterline (anti-silt groove waterline) all the time by the geotextile that the certain water yield of storage (anti-silt groove water level) guarantees to be bundled on the drainage pipe, geotextile is not contacted with air, thereby effectively prevent the chemical silting of geotextile.
A kind of chemical siltation resisting drainage device of tailing dam, this row is oozed device and is comprised drainage pipe, infiltration groove, infiltration hole, geotextile, anti-silt groove.It is characterized in that: drainage pipe is a circular pipe, its role is to discharge the water in the dam body.Infiltration groove and infiltration hole are at bar shaped tank of opening on the drainage pipe and the circular aperture of opening in tank, its role is to allow the interior underground infiltration of dam body better infiltrate in the drainage pipe, so that underground infiltration can be discharged to outside the dam smoothly.Geotextile is one deck synthetic fibers that are wrapped in infiltration groove and outside, infiltration hole, its role is to play a role in filtering, can also prevent that fine particle from flowing out by drainage pipe, so good buffer action is also arranged.Anti-silt groove is rectangular uncovered closed box, its role is to: can store certain water yield when water level is low, in case geotextile generation silting.
Geotextile (market pushes away and purchases) is the engineering coiled material that synthetic fibers pass through weaving or make through no spinning process such as gluing, hot pressing acupunctures.The primary raw material of synthetic fibers has polypropylene, polyester, polyamide (prior art is synthetic) etc.This invention is employed to be drainage type geotextile (can allow water to pass through, can prevent that again fine grained soils from losing with current).
For underground infiltration can be passed through outside the smooth and easy outflow dam body of drainage pipe, the present invention is provided with infiltration groove and infiltration hole in the The initial segment of drainage pipe.
In order to prevent the outflow of fine particle, can make water infiltrate drainage pipe again, the present invention is in the infiltration groove and infiltration position, the hole parcel layer of geotextile of drainage pipe.
In order to prevent that geotextile from chemical silting taking place, and guarantee the normal draining of tailing dam, the present invention increases anti-silt groove in the drainage pipe outside, allow angle of drainage pipe inclination place simultaneously, this angle should guarantee that the drainage pipe position that is tied with geotextile is in below the anti-silt groove waterline all the time, can make the underground infiltration in the dam body successfully flow automatically to outside the dam again.
The present invention compared with prior art has the following advantages and effect:
1) can prevent that geotextile from chemical silting taking place, guarantee the normal draining of dam body.
2) prevented that fine particle from flowing out dam body by drainage pipe.
3), reduced the phreatic line of dam body by stabilization by drainage.
4) unobstructed, the operation risk that reduced tailing dam of draining.
5) timeliness height, cost are low.
Description of drawings
Fig. 1 is a kind of chemical siltation resisting drainage device draining schematic diagram of tailing dam.
Fig. 2 is a kind of chemical siltation resisting drainage device schematic diagram of tailing dam.
Fig. 3 is a kind of tailing dam drainage pipe sectional drawing.
The name of number in the figure correspondence is called:
1-drainage pipe, the anti-silt groove of 2-, 3-phreatic line, 4-fill dam, 5-infiltration hole, 6-infiltration groove, 7-geotextile, the anti-silt groove waterline of 8-.
The specific embodiment
The present invention is further elaborated below in conjunction with accompanying drawing:
According to Fig. 1, Fig. 2, Fig. 3 as can be known, this row is oozed device and is comprised drainage pipe 1, infiltration groove 6, infiltration hole 5, geotextile 7, anti-silt groove 2, phreatic line 3, fill dam 4, anti-silt groove waterline 8.A kind of chemical siltation resisting drainage device of tailing dam, its annexation and effect are:
A kind of drainage pipe 1 of chemical siltation resisting drainage device of tailing dam is a circular pipe, lays infiltration groove 6 in the end of pipeline, its role is to guarantee that current can in time discharge dam body smoothly.Cutter is got circular infiltration hole 5 in infiltration groove 6 simultaneously, its role is to allow the interior water of dam body better infiltrate in the drainage pipe 1, so that underground infiltration can be discharged to outside the dam smoothly.In addition,, its role is to filter and buffer action, flowed out outside the dam by drainage pipe 1 to guarantee fine particle, thereby prevent dam body recurring structure destruction at the infiltration groove 6 of drainage pipe 1 and the geotextile 7 of infiltration 5 positions, hole parcel one deck synthetic fibers.
A kind of anti-silt groove 2 of chemical siltation resisting drainage device of tailing dam, this anti-silt groove 2 is the uncovered rectangular box, open a circular port identical at the certain altitude of casing front end with drainage pipe 1 caliber size, so that drainage pipe 1 can be in tilted layout in anti-silt groove 2, its gradient wants to guarantee that the drainage pipe 1 that is surrounded by geotextile 7 is in below anti-silt groove 2 waterlines all the time.Its role is to: can when water level is higher, can make water enter dam body by anti-silt groove 2, can when low water stage, store certain water yield (anti-silt groove water level 8) again, guarantee that geotextile is in below the water level all the time, do not contact, in case chemical silting takes place geotextile 7 with air.
The continuous heap-shaped of mine tailing and lime-ash becomes fill dam 4, and the waterline of a certain vertical section gained is exactly the phreatic line 3 of dam body in fill dam 4.
Anti-silt groove waterline 8 be anti-silt groove can store maximum amount of water the time waterline, it also is the underground row lowest water level line that oozes of row that seeps water, when the phreatic line 3 of dam body is lower than anti-silt groove waterline 8, the underground row infiltration of dam body can not enter anti-silt groove 2, thereby can not be by horizontal drainage pipe the underground row discharge dam body that seeps water.Therefore, prevent that the water level of silt groove 2 reaches lowest water level (i.e. the water level of anti-silt groove waterline) this moment.The effect of anti-silt groove waterline 8 is to make the geotextile 7 on the drainage pipe 1 to be in the water all the time, thereby prevents that geotextile 7 from chemical silting occurring saturated replacing with unsaturation under the change condition.
The row of tailing dam is oozed device and mainly is made up of drainage pipe 1, infiltration groove 6, infiltration hole 5, geotextile 7 and anti-silt groove 2, at first lay infiltration groove 6 in circular drainage pipe 1 end, the cutter that keeps at a certain distance away in infiltration groove 6 is simultaneously got circular infiltration hole 5, with geotextile 7 infiltration groove 6 is tightly wrapped up then, run off by seep water groove 6 and infiltration hole 5 to prevent fine grained soils.Then drainage pipe 1 is in tilted layout in the anti-silt groove 2 of uncovered rectangular box, its gradient should guarantee that geotextile 7 is in anti-silt groove waterline below 8 all the time, guarantees that again water can be discharged dam body smoothly in the dam.The visual use of its gradient need be determined.
Claims (4)
1, a kind of chemical siltation resisting drainage device of tailing dam, comprise drainage pipe (1), anti-silt groove (2), infiltration hole (5), infiltration groove (6), geotextile (7), it is characterized in that: drainage pipe (1) is a circular pipe, lay infiltration groove (6) in the end of pipeline, cutter is got circular infiltration hole (5) in infiltration groove (6), at the infiltration groove (6) of drainage pipe (1) and the geotextile (7) of infiltration position, hole (5) parcel one deck synthetic fibers, anti-silt groove (2) be the uncovered rectangular box, the casing front end open one with the big or small identical circular port of drainage pipe (1) caliber.
2, the chemical siltation resisting drainage device of a kind of tailing dam according to claim 1 is characterized in that: described drainage pipe (1) is in tilted layout in anti-silt groove (2).
3, the chemical siltation resisting drainage device of a kind of tailing dam according to claim 1 is characterized in that: infiltration groove (6) is laid in described drainage pipe (1) end.
4, the chemical siltation resisting drainage device of a kind of tailing dam according to claim 1 is characterized in that: described geotextile (7) is in tilted layout infiltration groove (6) parcel in the anti-silt groove (2) of uncovered rectangular box with drainage pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100636266A CN101629417B (en) | 2009-08-14 | 2009-08-14 | Chemical siltation resisting drainage device for tailing dam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100636266A CN101629417B (en) | 2009-08-14 | 2009-08-14 | Chemical siltation resisting drainage device for tailing dam |
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| CN101629417A true CN101629417A (en) | 2010-01-20 |
| CN101629417B CN101629417B (en) | 2011-07-20 |
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| CN2009100636266A Expired - Fee Related CN101629417B (en) | 2009-08-14 | 2009-08-14 | Chemical siltation resisting drainage device for tailing dam |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787731A (en) * | 2010-03-05 | 2010-07-28 | 长沙有色冶金设计研究院 | Industrial pipe culvert/tunnel gap leakage sealing method |
| CN101994312A (en) * | 2010-10-15 | 2011-03-30 | 中冶沈勘工程技术有限公司 | Soil side slope or tailings dam drainage construction method |
| CN102296622A (en) * | 2011-05-19 | 2011-12-28 | 周昕 | Micro-pipe bundle seepage pipe for tailings |
| RU2450102C2 (en) * | 2010-05-21 | 2012-05-10 | Государственное учреждение "Высокогорный геофизический институт" (ГУ "ВГИ") | Drainage system of earth dam |
| CN102626011A (en) * | 2012-04-16 | 2012-08-08 | 北京林业大学 | Method for regulating underground water level of dam field |
| CN102879315A (en) * | 2012-10-08 | 2013-01-16 | 中国矿业大学 | Multifunctional seepage experiment device |
| CN104879129A (en) * | 2015-06-05 | 2015-09-02 | 中南大学 | Stope debris flow treatment method in caving mining method and device thereof |
| CN108331127A (en) * | 2018-01-18 | 2018-07-27 | 北京科技大学 | A kind of tailing water seepage drainage facility silting remove device and method |
| CN109060624A (en) * | 2018-08-10 | 2018-12-21 | 河海大学 | A kind of method and permeability apparatus for studying drainage pipe water seepage drainage effect |
| CN109356144A (en) * | 2018-10-29 | 2019-02-19 | 河海大学 | A kind of dedicated drainage pipe of Tailings Dam and its method for slowing down silting |
| CN109610434A (en) * | 2019-01-25 | 2019-04-12 | 北京科技大学 | A kind of tailing dam silting negative pressure water seepage drainage and reinforcement device |
| CN113171652A (en) * | 2021-04-30 | 2021-07-27 | 矿冶科技集团有限公司 | Tailing reverse filter material, preparation method and application thereof, reverse filter material seepage drainage structure and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110735429A (en) * | 2019-09-24 | 2020-01-31 | 河海大学 | composite seepage-discharging pipe for resisting physical clogging |
-
2009
- 2009-08-14 CN CN2009100636266A patent/CN101629417B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787731A (en) * | 2010-03-05 | 2010-07-28 | 长沙有色冶金设计研究院 | Industrial pipe culvert/tunnel gap leakage sealing method |
| RU2450102C2 (en) * | 2010-05-21 | 2012-05-10 | Государственное учреждение "Высокогорный геофизический институт" (ГУ "ВГИ") | Drainage system of earth dam |
| CN101994312A (en) * | 2010-10-15 | 2011-03-30 | 中冶沈勘工程技术有限公司 | Soil side slope or tailings dam drainage construction method |
| CN102296622A (en) * | 2011-05-19 | 2011-12-28 | 周昕 | Micro-pipe bundle seepage pipe for tailings |
| CN102626011A (en) * | 2012-04-16 | 2012-08-08 | 北京林业大学 | Method for regulating underground water level of dam field |
| CN102879315B (en) * | 2012-10-08 | 2014-08-20 | 中国矿业大学 | Multifunctional seepage experiment device |
| CN102879315A (en) * | 2012-10-08 | 2013-01-16 | 中国矿业大学 | Multifunctional seepage experiment device |
| CN104879129A (en) * | 2015-06-05 | 2015-09-02 | 中南大学 | Stope debris flow treatment method in caving mining method and device thereof |
| CN104879129B (en) * | 2015-06-05 | 2017-06-16 | 中南大学 | The administering method and its device of stope mud-rock flow in a kind of caved stopes |
| CN108331127A (en) * | 2018-01-18 | 2018-07-27 | 北京科技大学 | A kind of tailing water seepage drainage facility silting remove device and method |
| CN109060624A (en) * | 2018-08-10 | 2018-12-21 | 河海大学 | A kind of method and permeability apparatus for studying drainage pipe water seepage drainage effect |
| CN109060624B (en) * | 2018-08-10 | 2023-10-27 | 河海大学 | Method for researching seepage-discharging effect of seepage-discharging pipe and seepage device |
| CN109356144A (en) * | 2018-10-29 | 2019-02-19 | 河海大学 | A kind of dedicated drainage pipe of Tailings Dam and its method for slowing down silting |
| CN109610434A (en) * | 2019-01-25 | 2019-04-12 | 北京科技大学 | A kind of tailing dam silting negative pressure water seepage drainage and reinforcement device |
| CN113171652A (en) * | 2021-04-30 | 2021-07-27 | 矿冶科技集团有限公司 | Tailing reverse filter material, preparation method and application thereof, reverse filter material seepage drainage structure and application thereof |
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| CN101629417B (en) | 2011-07-20 |
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