CN110374132A - A kind of cinder field or the Ecosystem restoration system and construction method of tailings stack antiseepage barrier - Google Patents
A kind of cinder field or the Ecosystem restoration system and construction method of tailings stack antiseepage barrier Download PDFInfo
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- CN110374132A CN110374132A CN201910442075.8A CN201910442075A CN110374132A CN 110374132 A CN110374132 A CN 110374132A CN 201910442075 A CN201910442075 A CN 201910442075A CN 110374132 A CN110374132 A CN 110374132A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/006—Sealing of existing landfills, e.g. using mining techniques
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The Ecosystem restoration system and construction method obstructed the invention discloses a kind of cinder field or tailings stack antiseepage.The Ecosystem restoration system is provided with antiseepage barrier wall, cured layer and third antiseepage barrier layer, by its side far from the pollution sources in barrier wall, the second antiseepage barrier layer is set, second antiseepage barrier layer can be effectively prevented the problem of liquid such as extraneous rainwater, mountain spring water can enter inside antiseepage barrier wall by cavity wall on the outside of antiseepage barrier wall, aggravate the pollution problem of pollution sources.Especially for Karst geomorphological environment, it is more liquid due to water source, more liquid can flow to pollution sources, can largely liquid barrier be entered in pollution sources from the pollution sources external world by above-mentioned second antiseepage barrier layer, prevent the pollution problem of pollution sources from aggravating.It can effectively obstruct extraneous water body while solidifying slag and/or tailing heap by setting cured layer and third antiseepage barrier layer and enter in slag and/or tailing heap, avoid underground water pollution.
Description
Technical field
The present invention relates to ecological restoration technical fields, and in particular to a kind of cinder field or the ecology of tailings stack antiseepage barrier are repaired
Complex system and construction method.
Background technique
China's economy is after high speed development, more and more, the built various bands of all kinds of mines of well hair, newly-built factory
There are cinder field, tailings stack and the factory floor of pollution sources ten hundreds of, this also means that various slags, industrial liquid, each
Kind chemical raw material, once leakage will generate high risks to environment, entire society face contaminated risk also increasingly
Greatly.It is unrepairable on sill once causing particularly with the pollution of underground water, soil.Ensure all kinds of cinder fields, tailing heap
Pollution sources are effectively isolated in process of production for field and factory, avoid pollution source since leakage generates pollution, protection to environment
Precious groundwater resources become urgent problem.
Antiseepage barrier wall in the prior art to prevent pollutant from leaking is only anti-towards the setting of the side of pollution sources at it
Infiltration layer is not leaked out with contaminated liquid and the pollutant etc. that guarantee pollution sources.But in most circumstances, especially
In Karst geomorphological environment, more liquid due to water source, the liquid such as rainwater, mountain spring water can pass through antiseepage barrier wall outboard cavity
Wall enters inside antiseepage barrier wall, aggravates the pollution problem of pollution sources, and then partial contamination liquid is caused to seep from antiseepage barrier wall
Out, serious environmental pollution is caused.Meanwhile also easily there are erosion in slag and/or tailing heap outer surface by extraneous water body, thus into
Enter in slag and/or tailing heap, eventually the pollutant in slag and/or tailing heap is taken out of, influences body of groundwater.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of ecologies of the three-dimensional antiseepage barrier of cinder field or the full side of tailings stack to repair
Complex system and its construction method, it is poor to the antiseepage barriering effect of slag and/or tailing heap to solve the prior art, it will cause serious
The problem of environmental pollution.
The embodiment of the invention provides a kind of Ecosystem restoration system of the three-dimensional antiseepage barrier of cinder field or the full side of tailings stack, packets
It includes:
Antiseepage barrier wall, including barrier wall, the first antiseepage barrier layer and the second antiseepage barrier layer, the barrier wall,
Upper wall part including being located at earth's surface or more and/or lower layer's wall part in the soil of the earth's surface, with barrier
Pollution sources and pollution sources are extraneous；The first antiseepage barrier layer, positioned at the barrier wall its towards the side of the pollution sources,
Prevent the solid-liquid pollutant of the pollution sources from exosmosing；The second antiseepage barrier layer, being located at the barrier wall, it is separate described
The side of pollution sources prevents the solidliquid mixture in the pollution sources external world from entering the pollution sources；
Cured layer is layed on slag and/or tailing heap outer surface, to solidify the slag and/or tailing heap；
Third antiseepage barrier layer, is layed on the cured layer, enters the slag and/or tailing to obstruct extraneous water body
In heap.
Further, cured layer can be macromolecule glue-line, concretely HDPE film layer.
Further, the ratio between thickness of the cured layer and third antiseepage barrier layer is (10-20): (5-40)；Preferably,
The cured layer with a thickness of 10-20cm；The third antiseepage barrier layer with a thickness of 5-40cm.
Further, further include overburden layer, be covered in the third antiseepage barrier layer and be located in the antiseepage barrier wall
Side, the overburden layer with a thickness of 60cm-2m, plant green plant on the overburden layer；
4th antiseepage barrier layer, the surface of bedrock being layed in immediately below cinder field or tailings stack, the basement rock are located at earth's surface
Under, in the horizontal direction at the middle part of the slag and/or tailing heap to outer surface, the thickness of the 4th antiseepage barrier layer by
It gradually reduces, is drained to the slope on the outside of cinder field or tailings stack suitable for the water body from cinder field or tailings stack to be formed；
4th drainage channel, and is connected at the slope foot on the slope, and water body is guided to far from cinder field or tailings stack
Position.
Further, the barrier wall includes the first wall for being positioned close to the pollution sources side, and setting
In the second wall being oppositely arranged far from the pollution sources side and first wall, first wall and second wall
Hollow cavity is formed between body, and first drawn for that will enter its internal solid-liquid pollutant is provided in the hollow cavity
Drainage channel.
Further, the barrier wall its be provided with close to the side of the pollution sources for will be in the pollution sources
The second drainage channel and/or described its side far from the pollution sources of barrier wall that solid-liquid pollutant is drawn are arranged useful
It guides in by the solidliquid mixture in the pollution sources external world to the third drainage channel far from the pollution source position.
Further, first drainage channel with there is pollutant cavity for handling the solid-liquid pollutant equipment
It is connected；
Lower layer's wall part is obliquely installed towards the side close to the pollution sources or lower layer's wall part court
It is obliquely installed to the side far from the pollution sources.
Further, the angle of lower layer's wall part and ground level is 20 degree to 70 degree；Preferably, lower layer's wall
The angle of body portion and ground level is 30 degree.
Further, the pollution sources are slag heap and/or tailings stack.
Further, the upper wall part is arranged perpendicular to ground level.
In addition, the present invention provides the construction methods of above-mentioned Ecosystem restoration system, comprising the following steps:
Process the barrier wall with the first antiseepage barrier layer and the second antiseepage barrier layer；
Implantation barrier its lower layer's wall part of wall below earth's surface；
Construction obstructs wall layer wall part thereon more than earth's surface；
By the barrier wall, it is logical close to the second drainage of solid-liquid pollutant extraction of the side of the pollution sources for construction
The third that the solidliquid mixture of barrier its side far from the pollution sources of wall is drawn is drained and is led to by road, and/or construction
Road, and/or the first drainage channel that solid-liquid pollutant intracavitary in the barrier wall wherein sky is drawn in construction；
Cured layer and third antiseepage barrier layer are successively laid on slag and/or tailing heap outer surface；
Surface of bedrock is cleared up, and is laid with the 4th antiseepage barrier layer in surface of bedrock.
Technical solution of the present invention has the advantages that
1. Ecosystem restoration system provided by the invention is provided with antiseepage barrier wall, cured layer and third antiseepage barrier layer, lead to
It crosses its side far from the pollution sources in barrier wall and the second antiseepage barrier layer is set, the second antiseepage barrier layer can be effectively
It prevents the liquid such as extraneous rainwater, mountain spring water from can enter inside antiseepage barrier wall by cavity wall on the outside of antiseepage barrier wall, makes to pollute
The problem of pollution problem in source aggravates.It is more liquid due to water source especially for Karst geomorphological environment, more
Liquid can flow to pollution sources, by above-mentioned second antiseepage barrier layer can largely liquid barrier from the pollution sources external world into
Enter in pollution sources, prevent the pollution problem of pollution sources from aggravating, and then partial contamination liquid is caused to ooze out from antiseepage barrier wall, causes tight
Again the problem of environmental pollution.Simultaneously by setting cured layer and third antiseepage barrier layer, solidifying the same of slag and/or tailing heap
When, it can effectively obstruct extraneous water body and enter in slag and/or tailing heap, avoid underground water pollution.
2. Ecosystem restoration system provided by the invention, by optimizing the ratio between the thickness of cured layer and third antiseepage barrier layer,
Solidification and barriering effect can be further improved, while reaching preferable solidification and barriering effect, reduces material cost.It is logical
Setting overburden layer is crossed, third antiseepage barrier layer and antiseepage barrier wall can be covered, plants green plant on overburden layer in addition, improves slag
And/or the appearance environment of tailing heap；
Meanwhile the 4th antiseepage barrier layer is being layed in the surface of bedrock immediately below cinder field or tailings stack, basement rock is located at
Under earth's surface, in the horizontal direction at the middle part of the slag and/or tailing heap to outer surface, the thickness of the 4th antiseepage barrier layer by
It gradually reduces, is drained to the slope on the outside of cinder field or tailings stack suitable for the water body from cinder field or tailings stack to be formed；Setting
The 4th drainage channel being connected to at the slope foot on slope guides water body to the position far from cinder field or tailings stack.
3. Ecosystem restoration system provided by the invention, constituting barrier wall body by the first wall and the second wall can be effective
Ground reduces the production installation difficulty of barrier wall, facilitate construction party construct to be formed inside and outside all have the barrier wall of antiseepage function
Body.Hollow cavity is formed between first wall and the second wall, it can be by consolidating in the hollow cavity by the first drainage channel
Liquid pollutant, which is drawn, carries out subsequent processing, and the solid-liquid pollutant so as to be effectively prevented in hollow cavity passes through the second wall again
It is extraneous that body penetrates into pollution sources, or is entered in pollution sources by the first wall, and then the solid-liquid of pollution sources is effectively prevented to pollute
The problem of object oozes out, and causes environmental pollution.
4. Ecosystem restoration system provided by the invention, obstructing wall, it is provided with close to the side of the pollution sources for inciting somebody to action
The second drainage channel that the solid-liquid pollutant of the pollution sources exudation is drawn, above-mentioned second drainage channel can be effectively by pollutions
The solid-liquid pollutant of source exudation draws the pollution sources, to handle above-mentioned solid-liquid pollutant, avoids pollution source and antiseepage
A large amount of solid-liquid pollutant is retained between barrier wall, causes the accumulation of solid-liquid pollutant that solid-liquid pollutant is caused to pass through antiseepage barrier wall
The problem of oozing out, causing environmental pollution；Described its side far from the pollution sources of barrier wall is provided with for by the dirt
The solidliquid mixture in the dye source external world is guided to the third drainage channel (12) far from the pollution source position.Above-mentioned third drainage is logical
The solidliquid mixture of external environment effectively can be deflected from antiseepage barrier wall by road, to reduce its second antiseepage of antiseepage barrier wall
The pressure of barrier layer prevents rainwater, spring etc. from entering pollution sources by the second antiseepage barrier layer, and the pollution aggravated in pollution sources is asked
Topic.
5. Ecosystem restoration system provided by the invention, lower layer's wall part is set towards the inclination close to the side of the pollution sources
It sets or side that lower layer's wall part is directed away from the pollution sources is obliquely installed.When antiseepage barrier wall, it is located at soil
When lower layer's wall part of lower layer tilts construction, the difficulty of construction of lower layer's wall part can be effectively reduced.Moreover, towards dirt
Lower layer's wall part that dye source is obliquely installed can be effectively reduced the soil that lower layer's wall part is subject to and solid-liquid pollutant its
The extruding force of the two.
6. the angle of Ecosystem restoration system provided by the invention, lower layer's wall part and ground level is 20 degree to 70 degree.Cause
For antiseepage barrier wall, its lower layer's wall part is larger perpendicular to the difficulty of construction of the construction of soil, and antiseepage barrier wall its lower layer's wall
Body portion level cannot achieve the package in all directions to pollution sources, solid-liquid pollutant avoided to seep from soil when soil is constructed
Out, the problem of environmental pollution is caused.When the angle of lower layer's wall part and ground level is 20 degree to 70 degree, can both guarantee to prevent
The construction for seeping barrier wall will not be too high, and the full side's solid antiseepage barrier to form pollution sources can also be effectively matched with basement rock
Wall is effectively prevented solid-liquid pollutant and oozes out from topsoil and lower layer, guarantees the anti-seepage effect of antiseepage barrier wall.
7. Ecosystem restoration system provided by the invention, lower layer's wall part extends to soil horizon d below, to make
Its lower layer's wall part of antiseepage barrier wall and horizon d surround full side's solid antiseepage barrier wall of package pollution sources, prevent solid-liquid dirty
Object is contaminated from the problem of overflowing between lower layer's wall part and horizon d, in turn result in environmental pollution.
8. Ecosystem restoration system provided by the invention, upper wall part is arranged perpendicular to ground level, perpendicular to ground level
Its upper layer wall part of the antiseepage barrier wall of setting has the advantages that construction is simple is convenient.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is lower layer's wall part provided in an embodiment of the present invention towards the inclined Ecosystem restoration system in pollution sources direction
Structural schematic diagram；
Fig. 2 is that lower layer's wall part provided in an embodiment of the present invention is directed away from the inclined restoration of the ecosystem system in pollution sources direction
The structural schematic diagram of system；
Fig. 3 is the arrangement schematic diagram of its drainage channel of antiseepage barrier wall provided in an embodiment of the present invention.
Description of symbols:
1- obstructs wall；2- upper wall part；3- lower layer wall part；4- pollution sources；5- hollow cavity；6- first is anti-
Seep barrier layer；7- the second antiseepage barrier layer；The first wall of 8-；The second wall of 9-；The first drainage channel of 10-；The drainage of 11- second is logical
Road；12- third drainage channel；13- pollutant cavity；14- water purification cavity；15- cured layer；16- third antiseepage barrier layer；17-
Basement rock；The 4th antiseepage barrier layer of 18-；The 4th drainage channel of 19-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1
The embodiment of the invention provides a kind of Ecosystem restoration systems of the three-dimensional antiseepage barrier of cinder field or the full side of tailings stack, such as
Shown in Fig. 1 and 3, comprising:
Wall 1 is obstructed, the upper wall part 2 including being located at earth's surface or more and the lower layer in the soil of the earth's surface
Wall part 3, above-mentioned barrier wall 1 are separately positioned in the soil of ground or more and below ground, can be effectively prevented
Solid-liquid pollutant inside cinder field exosmoses under the seepage effect of precipitation and underground water, pollutes environment.The upper wall part 2
It is arranged perpendicular to ground level, lower layer's wall part 3 is obliquely installed towards the side close to the slag heap, above-mentioned lower layer's wall
Body portion 3 extends to soil horizon d 15 below, extraneous to obstruct slag heap and pollution sources.When antiseepage barrier wall, it is located at soil
When lower layer's wall part 3 of earth lower layer tilts construction, the difficulty of construction of lower layer's wall part 3 can be effectively reduced.Moreover, court
The lower layer's wall part 3 being obliquely installed to pollution sources 4 can be effectively reduced the soil that lower layer's wall part 3 is subject to and solid-liquid is dirty
Contaminate the extruding force of object the two.The angle of lower layer's wall part 3 and ground level is 30 degree, because of its lower layer of antiseepage barrier wall
Wall part 3 is larger perpendicular to the difficulty of construction of the construction of soil, and its lower layer's wall part 3 of antiseepage barrier wall is horizontal in soil
When construction, it cannot achieve the package in all directions to pollution sources 4, avoid solid-liquid pollutant from oozing out from soil, cause environmental pollution
The problem of.When the angle of lower layer's wall part 3 and ground level is 20 degree to 70 degree, it can both guarantee the construction of antiseepage barrier wall
Will not be too high, the full side's solid antiseepage barrier wall to form pollution sources 4 can also be effectively matched with horizon d 15, effectively prevented
Only solid-liquid pollutant is oozed out from topsoil and lower layer, guarantees the anti-seepage effect of antiseepage barrier wall.Above-mentioned barrier wall 1 includes setting
It sets in the first wall 8 close to the slag heap side, and is arranged far from the slag heap side and first wall 8
The second wall 9 being oppositely arranged；
First antiseepage barrier layer 6, the first antiseepage barrier layer 6 be located at first wall 8 its towards the slag heap
Side, prevent the solid-liquid pollutant of the slag heap from exosmosing, positioned at the barrier wall 1 its towards the side of the slag heap
With the first antiseepage barrier layer 6, the solid-liquid pollutant extravasation of the slag heap can be effectively prevented；
Second antiseepage barrier layer 7, the second antiseepage barrier layer 7 be located at second wall 9 its far from the slag heap
Side, prevent the pollution sources external world solidliquid mixture enter the slag heap.By the way that in barrier wall 1, it is separate described
The second antiseepage barrier layer 7 is arranged in the side of slag heap, and the second antiseepage barrier layer 7 can be effectively prevented extraneous rainwater, mountain spring
The liquid such as water can be entered inside antiseepage barrier wall by cavity wall on the outside of antiseepage barrier wall, make what the pollution problem of pollution sources aggravated to ask
Topic occurs.Especially for Karst geomorphological environment, more liquid due to water source, more liquid can flow to slag heap,
It can largely liquid barrier be entered in slag heap from the pollution sources external world by above-mentioned second antiseepage barrier layer 7, prevent dirt
The pollution problem in dye source aggravates, and then the problem of cause partial contamination liquid to ooze out from antiseepage barrier wall, cause Heavy environmental pollution.
Cured layer 15 is layed on slag and/or tailing heap outer surface, to solidify the slag and/or tailing heap；Third
Antiseepage barrier layer 16 is layed on the cured layer, is entered in the slag and/or tailing heap with obstructing extraneous water body.Simultaneously
Extraneous water body can be effectively obstructed while solidifying slag and/or tailing heap by setting cured layer and third antiseepage barrier layer
Into in slag and/or tailing heap, underground water pollution is avoided.
Hollow cavity 5 is formed between above-mentioned first wall 8 and the second wall 9, is provided with and is used in the hollow cavity 5
To enter the first drainage channel 10 that its internal solid-liquid pollutant is drawn, the first drainage channel 10 be both ends respectively with pollutant
The pipeline that cavity 13 is connected with hollow cavity 5.Constituting barrier wall 1 by the first wall 8 and the second wall 9 can be effectively
The production installation difficulty for reducing barrier wall 1, facilitate construction party construct to be formed inside and outside all have the barrier wall of antiseepage function
Body 1.As shown in figure 3, forming hollow cavity 5 between the first wall 8 and the second wall 9, can be incited somebody to action by the first drainage channel 10
Solid-liquid pollutant in the hollow cavity 5, which is drawn, carries out subsequent processing, so as to the solid-liquid being effectively prevented in hollow cavity 5
Pollutant passes through the second wall 9 again and penetrates into the pollution sources external world, or is entered in slag heap by the first wall 8, and then effectively
The problem of preventing the solid-liquid pollutant of slag heap from oozing out, cause environmental pollution.
Above-mentioned barrier wall 1 its close to the side of the slag heap be provided with the solid-liquid for oozing out the slag heap dirt
The second drainage channel 11 that object is drawn is contaminated, the second drainage channel 11 is both ends respectively and in pollutant cavity 13 and barrier wall 1
The pipeline that side is connected；
The solid-liquid pollutant that slag heap oozes out effectively can be drawn the slag heap by above-mentioned second drainage channel 11, thus
Above-mentioned solid-liquid pollutant is handled, avoids retaining a large amount of solid-liquid pollutant between slag heap and antiseepage barrier wall, cause
The problem of accumulation of solid-liquid pollutant causes solid-liquid pollutant to ooze out by antiseepage barrier wall, cause environmental pollution；The barrier wall
Its side far from the slag heap of body 1 is provided with for guiding the solidliquid mixture in the pollution sources external world to far from described
The third drainage channel 12 of slag heap position.Third drainage channel 12 is both ends respectively and outside water purification cavity 14 and barrier wall 1
The pipeline that side is connected；
The solidliquid mixture of external environment effectively can be deflected from antiseepage barrier wall by above-mentioned third drainage channel 12, thus
The pressure for reducing its second antiseepage barrier layer 7 of antiseepage barrier wall prevents rainwater, spring etc. from entering by the second antiseepage barrier layer 7
Slag heap aggravates the pollution problem in slag heap.
Above-mentioned second drainage channel 11 and the first drainage channel 10 are set for handling the solid-liquid pollutant with having respectively
Standby pollutant cavity 13 is connected；The third drainage channel 12 and 14 phase of water purification cavity for accommodating the solidliquid mixture
Even.Moreover, lower layer's wall part 3 extends to soil horizon d 15 below, to make its lower layer's wall part 3 of antiseepage barrier wall
With horizon d 15 surround package slag heap full side's solid antiseepage barrier wall, prevent solid-liquid pollutant from lower layer's wall part 3 with
The problem of overflowing between horizon d 15, in turn result in environmental pollution.
Certainly, the present patent application is not particularly limited antiseepage barrier wall barrier process object, in other embodiments, prevents
It seeps barrier wall and surrounds tailings stack, form full side's solid antiseepage to the soil upper and lower level of tailings stack and obstruct.
Certainly, the present patent application is not particularly limited the angle between lower layer's wall part 3 and ground level, in other realities
It applies in example, the angle of lower layer's wall part 3 and ground level is 70 degree, though the angle of lower layer's wall part 3 and ground level is larger
It so will increase the difficulty of construction of antiseepage barrier wall.But lower layer's wall part 3 can surround the biggish antiseepage sky of area with basement rock
Between, to accommodate more pollutants, reduces the pressure of lower layer's wall part 3, reserve drainage time to the first drainage channel 10.
Embodiment 2
On the basis of above-described embodiment 1, the ratio between thickness of cured layer 15 and third antiseepage barrier layer 16 is (10-20):
(5-40).Preferably, the cured layer with a thickness of 10-20cm；The third antiseepage barrier layer with a thickness of 5-40cm.
Further, further include overburden layer, be covered in the third antiseepage barrier layer and be located in the antiseepage barrier wall
Side, the overburden layer with a thickness of 60cm-2m, plant green plant on the overburden layer；
4th antiseepage barrier layer 18, is layed in 17 surface of basement rock immediately below cinder field or tailings stack, and the basement rock is located at
Under earth's surface, in the horizontal direction at the middle part of the slag and/or tailing heap to outer surface, the thickness of the 4th antiseepage barrier layer
Degree gradually decreases, and is drained to the slope on the outside of cinder field or tailings stack suitable for the water body from cinder field or tailings stack to be formed；
4th drainage channel 19, and is connected at the slope foot on the slope, and water body is guided to far from cinder field or tailing heap
The position of field.
By optimizing the ratio between the thickness of cured layer and third antiseepage barrier layer, solidification and barrier effect can be further improved
Fruit reduces material cost while reaching preferable solidification and barriering effect.By the way that overburden layer is arranged, it is anti-that third can be covered
Barrier layer and antiseepage barrier wall are seeped, plants green plant on overburden layer in addition, improves the appearance environment of slag and/or tailing heap；
Meanwhile the 4th antiseepage barrier layer is being layed in the surface of bedrock immediately below cinder field or tailings stack, basement rock is located at
Under earth's surface, in the horizontal direction at the middle part of the slag and/or tailing heap to outer surface, the thickness of the 4th antiseepage barrier layer by
It gradually reduces, is drained to the slope on the outside of cinder field or tailings stack suitable for the water body from cinder field or tailings stack to be formed；Setting
The 4th drainage channel being connected to at the slope foot on slope guides water body to the position far from cinder field or tailings stack.
Embodiment 3
The present embodiment the difference from embodiment 1 is that, as shown in Fig. 2, its lower layer of antiseepage barrier wall provided in this embodiment
The side that wall part 3 is directed away from the slag heap is obliquely installed.Lower layer's wall part 3 is directed away from the one of the slag heap
Side is obliquely installed and extends to soil basement rock below, can also equally play the effect of barrier slag heap and the pollution sources external world.
Embodiment 4
Present embodiments provide the construction method of above-mentioned Ecosystem restoration system, comprising the following steps:
Process the barrier wall 1 with the first antiseepage barrier layer 6 and the second antiseepage barrier layer 7；
Implantation barrier its lower layer's wall part 3 of wall 1 below earth's surface；
Construction barrier its upper layer wall part 2 of wall 1 more than earth's surface；
Construction by it is described barrier wall 1 its close to the side of the pollution sources 4 solid-liquid pollutant draw second drainage
Channel 11, and/or the third that the solidliquid mixture of barrier its side far from the pollution sources 4 of wall 1 is drawn in construction
Drainage channel 12, and/or the first drainage that the solid-liquid pollutant in described barrier its hollow cavity 5 of wall 1 is drawn in construction are logical
Road 10；
Cured layer 15 and third antiseepage barrier layer 16 are successively laid on slag and/or tailing heap outer surface；
Surface of bedrock is cleared up, and is laid with the 4th antiseepage barrier layer 18 in surface of bedrock.
Further, to the restorative procedure of the basement rock of waste residue or tailings stack base impervious weathering, comprising the following steps:
S1 clears up the surface of bedrock by the way of negative inspiratory pressure, to expose the basement rock；
S2 adds macromolecule glue into the crack of the basement rock, and the macromolecule glue is that slag recycles the colloid to be formed,
Has the advantages that environmental protection；
S3 is in the 4th antiseepage barrier layer 18 of horizon d surface construction, to prevent contaminated liquid from penetrating into.By adding in base
Macromolecule glue in cleft can effectively increase the bearing strength of basement rock, guarantee construction safety.Moreover, passing through above-mentioned high score
4th antiseepage barrier layer 18 of sub- glue and surface of bedrock can be effectively prevented industrial waste, process waste liquor, chemical products, slag
Deng above-mentioned pollutant penetrates into the crack of basement rock, causes serious problem of environmental pollution.
In the present embodiment, the step of clearing up surface of bedrock, comprising: remove the coating on the basement rock upper layer and to institute
It states basement rock and carries out crack cleaning.Cleaning work is carried out by the crack to basement rock, to make construction personnel in injection macromolecule glue
When guarantee macromolecule glue to the filling effect in basement rock crack.
In the present embodiment, the 4th antiseepage barrier layer 18 is the HDPE film being laid on the basement rock, by above-mentioned
HDPE film can be effectively avoided contaminated liquid and enter in the crack of basement rock.
The restorative procedure of waste residue or tailings stack base impervious weathered rocks in the present embodiment, further includes following step
It is rapid: construction liquid collecting zone, and the construction of the 4th antiseepage barrier layer 18 is formed into the approach channel face being obliquely installed, 18 court of the 4th antiseepage barrier layer
It is tilted to the liquid collecting zone and contaminated liquid is introduced into the liquid collecting zone.Above-mentioned liquid collecting zone is the ditch for accommodating the contaminated liquid, is led to
Water treatment facilities is crossed to handle the contaminated liquid in the ditch.4th antiseepage barrier layer 18 forms the approach channel face being obliquely installed,
Contaminated liquid effectively can be introduced into liquid collecting zone towards the inclined 4th antiseepage barrier layer 18 in liquid collecting zone by above-mentioned, thus convenient
The collection of contaminated liquid is handled.It is equipped on the 4th antiseepage barrier layer 18 in the present embodiment for protecting the 4th antiseepage barrier layer 18
Stratum protective layer, the stratum protective layer be non-woven fabrics.
Certainly, the present patent application to cleaning surface of bedrock the step of be not particularly limited, in other embodiments, without pair
Basement rock carries out crack cleaning, it is only necessary to remove the coating on the basement rock upper layer.
Certainly, the present patent application is not particularly limited the structure of the 4th antiseepage barrier layer 18, in other embodiments, the
Four antiseepage barrier layers 18 are the macromolecule impervious material smeared in surface of bedrock.Alternatively, the 4th antiseepage barrier layer 18 is to be laid on
The composite structure of HDPE film and macromolecule impervious material on the basement rock.
Certainly, the present patent application is not particularly limited to whether the 4th antiseepage barrier layer 18 tilts, in other embodiments,
4th antiseepage barrier layer 18 is plane compatible with basement rock shape.
Although being described in conjunction with the accompanying the embodiment of the present invention, those skilled in the art can not depart from the present invention
Spirit and scope in the case where various modifications and variations can be made, such modifications and variations are each fallen within by appended claims institute
Within the scope of restriction.
Claims (10)
1. a kind of Ecosystem restoration system of the three-dimensional antiseepage barrier of cinder field or the full side of tailings stack characterized by comprising
Antiseepage barrier wall, including barrier wall (1), the first antiseepage barrier layer (6) and the second antiseepage barrier layer (7), the barrier
Wall (1), the upper wall part (2) including being located at earth's surface or more and/or lower layer's wall in the soil of the earth's surface
Partially (3), it is extraneous to obstruct pollution sources (4) and pollution sources；The first antiseepage barrier layer (6) is located at the barrier wall (1)
It prevents the solid-liquid pollutant of the pollution sources (4) from exosmosing towards the side of the pollution sources (4)；The second antiseepage barrier
Layer (7) is located at described its side far from the pollution sources (4) of barrier wall (1), prevents the solid-liquid in the pollution sources external world mixed
It closes object and enters the pollution sources (4)；
Cured layer (15) is layed on slag and/or tailing heap outer surface, to solidify the slag and/or tailing heap；
Third antiseepage barrier layer (16), is layed on the cured layer, enters the slag and/or tailing to obstruct extraneous water body
In heap.
2. Ecosystem restoration system according to claim 1, which is characterized in that the cured layer (15) and third antiseepage obstruct
The ratio between thickness of layer (16) is (10-20): (5-40).
3. Ecosystem restoration system according to claim 2, which is characterized in that further include,
Overburden layer is covered in the third antiseepage barrier layer and is located above the antiseepage barrier wall, the thickness of the overburden layer
For 60cm-2m, green plant is planted on the overburden layer；
4th antiseepage barrier layer (18), is layed in basement rock (17) surface immediately below cinder field or tailings stack, and the basement rock is located at
Under earth's surface, in the horizontal direction at the middle part of the slag and/or tailing heap to outer surface, the thickness of the 4th antiseepage barrier layer
Degree gradually decreases, and is drained to the slope on the outside of cinder field or tailings stack suitable for the water body from cinder field or tailings stack to be formed；
4th drainage channel (19), and is connected at the slope foot on the slope, and water body is guided to far from cinder field or tailings stack
Position.
4. Ecosystem restoration system according to claim 1, which is characterized in that the barrier wall (1) includes that setting is being leaned on
The first wall (8) of nearly pollution sources (4) side, and it is arranged far from the pollution sources (4) side and first wall
The second wall (9) that body (8) is oppositely arranged forms hollow cavity between first wall (8) and second wall (9)
(5), the first drainage channel drawn for its internal solid-liquid pollutant will to be entered is provided in the hollow cavity (5)
(10)。
5. Ecosystem restoration system according to claim 1 or 2, which is characterized in that the barrier wall (1) its close to described
The side of pollution sources (4) is provided with the second drainage channel (11) for drawing the solid-liquid pollutant in the pollution sources (4),
And/or described barrier wall (1) its side far from the pollution sources (4) is provided with for by the solid-liquid in the pollution sources external world
Mixture is guided to the third drainage channel (12) far from the pollution sources (4) position.
6. Ecosystem restoration system according to claim 4, which is characterized in that first drainage channel (10) with have use
It is connected in the pollutant cavity (13) for handling the solid-liquid pollutant equipment；
Lower layer's wall part (3) is obliquely installed towards the side close to the pollution sources (4) or lower layer's wall part
(3) side for being directed away from the pollution sources (4) is obliquely installed.
7. Ecosystem restoration system according to claim 5, which is characterized in that lower layer's wall part (3) and ground level
Angle be 20 degree to 70 degree.
8. Ecosystem restoration system according to claim 1, which is characterized in that the pollution sources (4) are slag heap and/or tail
Mine stockyard.
9. Ecosystem restoration system according to claim 1, which is characterized in that the upper wall part (2) is perpendicular to ground
Plane setting.
10. a kind of construction method of Ecosystem restoration system described in any one of claims 1 to 9, which is characterized in that including with
Lower step:
Process the barrier wall (1) with the first antiseepage barrier layer (6) and the second antiseepage barrier layer (7)；
Implantation barrier wall (1) its lower layer's wall part (3) below earth's surface；
Construction barrier wall (1) its upper layer wall part (2) more than earth's surface；
It constructs second drainage for obstructing wall (1) its solid-liquid pollutant close to the side of the pollution sources (4) and drawing
The solidliquid mixture of described barrier wall (1) its side far from the pollution sources (4) is drawn in channel (11), and/or construction
Third drainage channel (12), and/or construction by it is described barrier wall (1) its hollow cavity (5) in solid-liquid pollutant draw
The first drainage channel (10)；
Cured layer and third antiseepage barrier layer are successively laid on slag and/or tailing heap outer surface；
Surface of bedrock is cleared up, and is laid with the 4th antiseepage barrier layer in surface of bedrock.
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| CN201910442075.8A CN110374132A (en) | 2019-05-24 | 2019-05-24 | A kind of cinder field or the Ecosystem restoration system and construction method of tailings stack antiseepage barrier |
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| CN201910442075.8A CN110374132A (en) | 2019-05-24 | 2019-05-24 | A kind of cinder field or the Ecosystem restoration system and construction method of tailings stack antiseepage barrier |
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| CN114059598A (en) * | 2021-12-07 | 2022-02-18 | 湘潭大学 | Automatic ecological restoration system suitable for phosphate slag landfill and construction method thereof |
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