CN113605518A - Internal dumping field for strip mine - Google Patents
Internal dumping field for strip mine Download PDFInfo
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- CN113605518A CN113605518A CN202110896760.5A CN202110896760A CN113605518A CN 113605518 A CN113605518 A CN 113605518A CN 202110896760 A CN202110896760 A CN 202110896760A CN 113605518 A CN113605518 A CN 113605518A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 212
- 239000002689 soil Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 60
- 238000005086 pumping Methods 0.000 claims description 28
- 238000001704 evaporation Methods 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 9
- 238000005065 mining Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 description 16
- 239000011435 rock Substances 0.000 description 9
- 230000002265 prevention Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- 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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
Abstract
The invention discloses an internal dump of strip mine, comprising: the inner soil discharging field body is provided with a discharging area; at least one water collecting and storing stratum structure, each water collecting and storing stratum structure is arranged in the discharge area. The invention discloses an inner soil discharge field of an open-pit mine, which aims to solve the problems that the existing reservoir occupies a large space of an effective operation area of the inner soil discharge field of the open-pit mine, and is not beneficial to mining, transportation and the like.
Description
Technical Field
The invention relates to the technical field of strip mine exploitation, in particular to an inner soil discharge field of a strip mine.
Background
In the process of surface mining, if the operation is improper, the aquifer of the original stratum can be damaged, a large amount of water resources are caused to flow into a mine pit, a large reservoir is formed between the working wall and the dump, and the propulsion of the steps at the bottom of the working wall and the quick tracking of the inner dump are seriously influenced.
The reservoir occupies a large space, so that the pit bottom distance is too long, the end slope transportation distance in the production process is increased, and the production cost is increased. In addition, the pit water collected in the reservoir contains a large amount of silt, long-time sedimentation treatment is needed for utilization, and a large amount of water resources are evaporated and lost in the sedimentation process.
Therefore, there is a need for an in-pit dump that addresses the above problems.
Disclosure of Invention
In view of the above, the present invention provides an earth dumping field in an open pit mine, so as to solve the problems that the existing reservoir occupies a large space in an effective operation area of the earth dumping field in the open pit mine, and is not beneficial to mining and transportation.
Based on the above object, the present invention provides an in-pit dump for an open pit mine, comprising:
the inner soil discharging field body is provided with a discharging area;
at least one water collecting and storing stratum structure, each water collecting and storing stratum structure is arranged in the discharge area.
Optionally, the water collecting and storing formation structure comprises: the water storage device comprises a containing groove, at least one water collecting tank and an anti-evaporation layer, wherein a water storage layer is arranged in the containing groove; each water collecting tank is communicated with the containing groove, and at least one layer of filtering structure is arranged between each water collecting tank and the water storage layer; the evaporation-proof layer is at least partially covered on the accommodating groove and/or the water collecting tank.
Optionally, the filtering structure comprises a first filtering structure and a second filtering structure which are sequentially communicated between the water collecting tank and the water storage layer.
Optionally, an isolation layer is at least partially disposed between the water collecting tank and the first filtering structure.
Optionally, the width of the accommodating groove gradually decreases from the notch to the groove bottom.
Optionally, a flexible impermeable layer is at least partially disposed in the receiving groove.
Optionally, the number of the water collecting and storing stratum structures is multiple, and the multiple water collecting and storing stratum structures are sequentially arranged at intervals from the discharge area to the side far away from the working upper.
Optionally, a water blocking dam is arranged between adjacent water collecting and storing stratum structures, and a pumping well is arranged on the water blocking dam.
Optionally, at least one communicating pipe is arranged between the pumping well and the adjacent water collection and storage stratum structure, and a control valve is arranged on each communicating pipe.
In addition, optionally, the quantity of communicating pipe is a plurality of, and is a plurality of communicating pipe is along the axial direction of pumper well interval sets gradually.
From the above, the soil discharge field in the strip mine provided by the invention has the following advantages compared with the prior art: by adopting the above earth-dumping ground in strip mine, each water collecting and storing stratum structure can collect and store mine water, and the water collecting and storing stratum structure provides a storage space for water flow, so that a large amount of water flow is prevented from entering the reservoir between the end wall and the working wall, the volume of the reservoir is reduced or cancelled, the pit bottom is prevented from being overlong, and the transport distance and the production cost are reduced. Meanwhile, at least one water collecting and storing stratum structure is arranged in the discharge area, the space of the discharge area can be effectively utilized, the space cannot be occupied additionally, and the space of an effective operation area of an earth discharge field in an open pit mine is avoided being occupied.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic illustration of an earth dump in a strip mine, as used in an embodiment of the present invention.
Fig. 2 is a cross-sectional view taken at a-a of the dump in the strip mine shown in fig. 1.
Fig. 3 is a cross-sectional view at B-B of the dump in the strip mine shown in fig. 1.
Fig. 4 is a connection structure diagram of a water blocking dam and a pumping well of the earth removing yard in the open pit mine shown in fig. 1 and water storage layers at both sides.
Wherein the reference numbers:
1. a water collecting tank; 2. a flexible barrier layer; 3. pumping a water well; 4. a water blocking dam; 5. a first filter structure; 6. a second filter structure; 7. a water storage layer; 8. a disposal area; 9. end uppers; 10. a working upper; 11. a communicating pipe; 12. a control valve; 13. an anti-evaporation layer; 14. an isolation layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1 is a schematic illustration of an earth dump in a strip mine, as used in an embodiment of the present invention. As shown in fig. 1, the present invention provides an in-pit dump for an open pit mine, comprising: an inner soil displacement body and at least one water collecting and storing formation structure as described above.
A disposal area 8 is arranged on the inner soil discharge field body;
an in-pit dump comprising: at least one water collecting and storing stratum structure, each of which is arranged in the disposal area 8.
In the coal mining process, typically one side highwall is provided as a disposal area 8, the disposal area 8 being adjacent to an end highwall 9 and being disposed opposite a working highwall 10. The water collecting and storing stratum structure is arranged in the discharge area 8, and then mine pit water is collected through the water collecting and storing stratum structure to at least partially replace the reservoir, so that the volume of the reservoir is reduced or the reservoir is completely replaced.
By adopting the above earth dumping field in strip mine, each water collecting and storing stratum structure can collect and store pit water, and the water collecting and storing stratum structure provides a storage space for water flow, so that a large amount of water flow is prevented from entering the reservoir between the end slope 9 and the working slope 10, the volume of the reservoir is reduced or cancelled, the pit bottom is prevented from being overlong, and the transport distance and the production cost are reduced. Meanwhile, at least one water collecting and storing stratum structure is arranged in the discharge area 8, the space of the discharge area 8 can be effectively utilized, the space cannot be occupied additionally, and the space of an effective operation area of a waste dump in a strip mine is prevented from being occupied.
In this embodiment, the water collecting and storing formation is dug from the top to the bottom of the disposal area 8, and the depth of the water collecting and storing formation is about one-half of the depth of the disposal area 8.
Fig. 2 is a cross-sectional view taken at a-a of the dump in the strip mine shown in fig. 1. Fig. 3 is a cross-sectional view at B-B of the dump in the strip mine shown in fig. 1. As shown in fig. 2 and 3, the water collection and storage stratum structure includes a receiving tank, at least one water collection tank 1, and an evaporation prevention layer 13.
The water collecting and storing stratum structure comprises a containing groove, at least one water collecting tank 1 and an anti-evaporation layer 13, wherein a water storage layer 7 is arranged in the containing groove; each water collecting tank 1 is communicated with the containing groove, and at least one layer of filtering structure is arranged between each water collecting tank 1 and the water storage layer 7; the storage tank and/or the water collecting tank 1 is at least partially covered with an anti-evaporation layer 13.
The collecting tank 1 is used for collecting water flows such as pit water and the like and can preliminarily settle silt, the effluent of the collecting tank 1 enters the accommodating tank after being further filtered by the filtering structure, and the water flow is intercepted by the storage layer in the accommodating tank; and an evaporation prevention layer 13 is arranged on the accommodating groove and/or the water collecting tank 1, and the evaporation prevention layer 13 is used for reducing the evaporation capacity of water resources.
Adopt above-mentioned water collection and storage stratum structure, the rivers are collected to catch basin 1, and when rivers flowed through filtration, can effectively detach a large amount of silt, and the rivers that pass through are crossed the filtration and are gone into the storage tank, hold back through reservoir bed 7, avoid a large amount of rivers to get into the cistern between end group 9 and the work group 10, and then reduce the volume of cistern, avoid the end apart from the overlength, reduce transportation distance and manufacturing cost. By covering the evaporation-proof layer 13, evaporation loss of water resources can be further avoided.
In this embodiment, the two opposite ends of the accommodating groove are respectively provided with one water collecting tank 1, and the two water collecting tanks 1 are symmetrically distributed along the accommodating groove. The water outlet of each water collecting tank 1 is provided with a filtering structure, and the water outlet of the water collecting tank 1 enters the water storage layer 7 after being filtered by the filtering structure.
In the embodiment, the water storage layer 7 is used for storing water flow such as filtered mine water, and the water storage layer 7 may be formed by stacking fillers, for example, the water storage layer 7 is formed by stacking rocks, and the particle size of the rocks may be determined according to the water storage capacity requirement, for example, the particle size of the rocks is 70 cm.
In this embodiment, the collecting basin 1 includes at least one water inlet and at least one water outlet, the water inlet can be disposed on the top surface of the collecting basin 1, the water outlet can be disposed on the side surface or the bottom surface of the collecting basin 1, the collecting basin 1 is generally rectangular, and the length, width and height of the collecting basin 1 are set according to the specific environment, for example, the length, width and height of the collecting basin 1 are 100m × 25m × 60 m.
In this embodiment, prevent that evaporation stratum 13 adopts and prevents that evaporation geotechnological cloth makes and form, prevent that evaporation stratum 13 covers the notch of storage tank comprehensively, prevent that evaporation stratum 13 covers comprehensively to the surface of catch basin 1, and then reduces the evaporation of the interior water yield of storage tank and catch basin 1.
Optionally, the filter structure comprises a first filter structure 5 and a second filter structure 6 in communication between the sump 1 and the water storage layer 7 in sequence. The first filtering structure 5 is used for filtering gravels with larger grain sizes, and the second filtering structure 6 is used for filtering gravels with smaller grain sizes, and good effluent quality can be provided through layer-by-layer filtering.
In this embodiment, the first filtering structure 5 is a primary filtering area, the primary filtering area is communicated with the water collecting tank 1 and the second filtering structure 6, and the primary filtering area extends from the notch of the accommodating tank to one side of the tank bottom, generally abuts against the side wall, and is in a wedge shape; the primary filtering area is filled with filter materials including but not limited to rocks, and the particle size of the rocks can be determined according to the requirement of filtering capacity, for example, the particle size of the rocks is 50 cm. And (3) performing primary filtration on the effluent in the standing water collecting tank 1.
In this embodiment, the second filtering structure 6 adopts a second filtering area, the second filtering area is communicated with the first filtering area and the water storage layer 7, the second filtering area extends from the notch of the containing groove to one side of the bottom of the groove, and usually abuts against the side wall to form a wedge-shaped block; the filtering volume of the secondary filtering area is larger than that of the primary filtering area, the secondary filtering area is filled with filter materials, the filter materials include but are not limited to rocks, the particle size of the rocks can be determined according to the filtering capacity requirement, and for example, the particle size of the rocks is 30 cm. And (4) performing secondary filtration on the effluent of the primary filtration zone after standing.
In this embodiment, the width of the primary filtering area is equal to the horizontal width of the secondary filtering area, and both are larger than the width of the collecting tank 1, for example, the width of the primary filtering area and the horizontal width of the secondary filtering area are both 30m, and the width of the collecting tank 1 is 25 m.
In this embodiment, the second filtering structure 6, the first filtering structure 5 and the water collecting tank 1 are sequentially and symmetrically arranged along the water storage layer 7 in the accommodating tank.
Optionally, an isolation layer 14 is arranged at least partially between the sump 1 and the first filter structure 5. The isolation layer 14 can isolate the filter material without affecting the normal flow of water. By arranging the isolation layer 14, the filter material in the first filter structure 5 is prevented from entering the water collecting tank 1, so that the volume of the water collecting tank 1 is reduced or the water is not smooth.
In this embodiment, the isolation layer 14 is disposed at the outlet of the water collection tank 1, and the junction where the isolation layer 14 and the water collection tank 1 can circulate water, and the isolation layer 14 includes, but is not limited to, geogrids.
Optionally, the width of the accommodating groove gradually decreases from the notch to the groove bottom. The water flow entering the containing groove can be rapidly concentrated to the groove bottom along the side wall, and the water flow entering the first filtering structure 5 and the second filtering structure 6 can also provide filtering efficiency due to the inclination of the side wall of the containing groove.
In this embodiment, the longitudinal section of the accommodating groove is in an isosceles trapezoid shape. The inclination angle that the lateral wall of storage tank and notch place plane formed is 30, and first filtration 5 and second filtration 6 all set up on this inclination, and this inclination can improve filtration efficiency.
Optionally, the accommodating groove is at least partially provided with a flexible impermeable layer 2. The flexible impermeable layer 2 isolates the accommodating groove from the external environment, and can prevent water flow in the accommodating groove from permeating into the external environment.
In this embodiment, the inner wall of the accommodating groove is provided with a flexible impermeable layer 2, the contact surface of the first filtering structure 5 and the accommodating groove is provided with the flexible impermeable layer 2, and the contact surface of the second filtering structure 6 and the accommodating groove is provided with the flexible impermeable layer 2. A flexible impermeable layer 2 is arranged in the water collecting tank 1. Except the surface on one side of the water outlet.
By using the water collecting and storing stratum structure, the two opposite ends of the accommodating groove are respectively provided with the water collecting tank 1, and the water collecting tanks 1 are used for collecting water flows such as pit water and the like and supplying the water flows to the accommodating groove for storage. The water collecting tank 1 can primarily settle silt, the effluent of the water collecting tank 1 enters the accommodating tank after being further filtered by the first filtering structure 5 and the second filtering structure 6, and the storage layer in the accommodating tank intercepts water flow; and an evaporation prevention layer 13 is arranged on the accommodating groove and/or the water collecting tank 1, and the evaporation prevention layer 13 is used for reducing the evaporation capacity of water resources. The flexible impermeable layer 2 is arranged in the water collecting tank 1 and/or the accommodating groove, so that water flow can be prevented from permeating into the disposal area 8 to cause side slope disasters.
With the development of an earth discharge field in a strip mine, the requirement on water collection and storage performance is higher, optionally, the number of the water collection and storage stratum structures is multiple, and the multiple water collection and storage stratum structures are sequentially arranged at intervals from the discharge area 8 to the side far away from the working slope 10. Through increasing the quantity of collection water storage stratum structure, the storage water ability of the interior dump of multiplicable strip mine, and then further reduce the volume of cistern.
In this embodiment, there is a spacing, for example 200m, between adjacent water collecting and storing formations. The plurality of water collecting and storing stratum structures can be constructed one by one, and after the front water collecting and storing stratum structure is put into use, the rear water collecting and storing stratum structure is manufactured.
Fig. 4 is a connection structure view of the water blocking dam 4 and the pumping well 3 of the earth removing field in the open pit mine shown in fig. 1 and the water storage layers 7 at both sides. As shown in fig. 4, the dump in the open pit mine includes a dam 4 and a suction well 3.
Optionally, a water blocking dam 4 is arranged between adjacent water collecting and storing stratum structures, and a pumping well 3 is arranged on the water blocking dam 4. The dam 4 is used for blocking the connection between adjacent water collecting and storing ground structures, such as the water collecting and storing ground structure put into use and the water collecting and storing ground structure built in, and the pumping well 3 is used for extracting the water quantity of the water collecting and storing ground structure or conveying water flow to the water collecting and storing ground structure. And putting into use again.
In the present embodiment, the width of the water blocking dam 4 may be set according to the blocking requirement, for example, the width of the water blocking dam 4 is 30m, and the water blocking dam 4 extends vertically along the height direction of the water collecting and storing ground structure, and generally extends to the conventional disposal area 8 below the water collecting and storing ground structure.
In this embodiment, the pumping amount of the pumping well 3 can be set according to the actual water consumption, the pumping well 3 is disposed at the center of the water blocking dam 4, and the pumping well 3 vertically extends along the height direction of the water collection and storage stratum structure, and generally extends to the bottom of the water collection and storage stratum structure.
Optionally, at least one communicating pipe 11 is arranged between the pumping well 3 and the adjacent water collection and storage stratum structure, and a control valve 12 is arranged on each communicating pipe 11. The control valve 12 is used for controlling the opening and closing of the communicating pipe 11, and when the control valve 12 is opened, water between the pumping well 3 and the adjacent water collecting and storing stratum structure flows in a communicating mode through the communicating pipe 11; when the control valve 12 is closed, the water flow between the pumping well 3 and the adjacent water collecting and storing stratum structure can not be communicated and flow through the communicating pipe 11. The communicating pipes 11 are communicated with the adjacent pumping wells 3 and the water collecting and storing stratum structure, so that the pumping wells 3 can pump water from the water collecting and storing stratum structure or drain water to the water collecting and storing stratum structure, and further, the water quantity between the water collecting and storing stratum structures is adjusted, and the use flexibility is improved.
In this embodiment, the pumping well 3 is disposed in the middle of the water blocking dam 4, one side or two opposite sides of the pumping well 3 are respectively communicated with at least one communicating pipe 11, the free end of each communicating pipe 11 is communicated with the water storage layer 7 of the adjacent water collecting and storing stratum structure, the opening or closing of each communicating pipe 11 can be independently controlled or jointly controlled, that is, the pumping well 3 can pump water from the communicated water storage layer 7 through any one or any plurality of communicating pipes 11.
In addition, optionally, the number of the communication pipes 11 is plural, and the plural communication pipes 11 are sequentially arranged at intervals along the axial direction of the pumping well 3. By increasing the number of the communicating pipes 11, the pumping and discharging flow rate of the pumping well 3 can be adjusted, the graded allocation of the water quantity of the water collection and storage stratum structure is realized, the balance weight of the water collection and storage stratum structure can be changed, and the compaction requirements of different materials are met.
In this embodiment, three communicating pipes 11 are sequentially arranged on each pumping well 3 at intervals along the axial direction, and each communicating pipe 11 can be controlled to be opened or closed respectively, or the communicating pipes 11 on the same side are opened or closed synchronously, or each communicating pipe 11 is opened or closed synchronously.
The use of the dump in a strip mine is described further below.
In the coal mining process, one side is usually set up to abandon district 8, and collection water storage stratum structure sets up in abandon district 8, can carry out effective utilization to the space in abandon district 8, can not additionally take up space. The reservoir is replaced by a water collecting and storing stratum structure which is arranged in the disposal area 8, so that the space of an effective operation area of a waste dump in an open pit is avoided being occupied, the water collecting tank 1 is used for collecting water flows such as pit water and the like and can primarily settle silt, the effluent of the water collecting tank 1 enters the accommodating tank after being further filtered by the filtering structure, and the water flow is intercepted by the storage layer in the accommodating tank; through the filtering action of the water collecting tank 1 and the filtering structure, the water flow entering the accommodating tank is purified and can be put into use again. And an evaporation prevention layer 13 is arranged on the accommodating groove and/or the water collecting tank 1, and the evaporation prevention layer 13 is used for reducing the evaporation capacity of water resources. The flexible impermeable layer 2 is arranged in the water collecting tank 1 and/or the accommodating groove, so that water flow can be prevented from permeating into the disposal area 8 to cause side slope disasters. A plurality of water collecting and storing stratum structures are arranged at intervals in sequence from the discharge area 8 to the side far away from the working wall 10, a water blocking dam 4 is arranged between the adjacent water collecting and storing stratum structures, the water blocking dam 4 is used for blocking the connection between the adjacent water collecting and storing stratum structures, a water pumping well 3 is arranged on the water blocking dam 4, and the water pumping well 3 extracts or releases water flow to the adjacent water collecting and storing stratum structures through a communicating pipe 11.
As can be seen from the above description and practice, the present invention provides an in-pit dump having the following advantages over the prior art: by adopting the above earth-dumping ground in strip mine, each water collecting and storing stratum structure can collect and store mine water, and the water collecting and storing stratum structure provides a storage space for water flow, so that a large amount of water flow is prevented from entering the reservoir between the end wall and the working wall, the volume of the reservoir is reduced or cancelled, the pit bottom is prevented from being overlong, and the transport distance and the production cost are reduced. Meanwhile, at least one water collecting and storing stratum structure is arranged in the discharge area, the space of the discharge area can be effectively utilized, the space cannot be occupied additionally, and the space of an effective operation area of an earth discharge field in an open pit mine is avoided being occupied.
Those of ordinary skill in the art will understand that: the above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An in-pit dump, comprising:
the inner soil discharging field body is provided with a discharging area;
at least one water collecting and storing stratum structure, each water collecting and storing stratum structure is arranged in the discharge area.
2. The in-pit dump of claim 1, wherein:
the water collection and storage stratum structure comprises: the water storage device comprises a containing groove, at least one water collecting tank and an anti-evaporation layer, wherein a water storage layer is arranged in the containing groove; each water collecting tank is communicated with the containing groove, and at least one layer of filtering structure is arranged between each water collecting tank and the water storage layer; the evaporation-proof layer is at least partially covered on the accommodating groove and/or the water collecting tank.
3. The in-pit dump of claim 2, wherein:
the filtering structure comprises a first filtering structure and a second filtering structure which are sequentially communicated between the water collecting tank and the water storage layer.
4. The in-pit dump of claim 3, wherein:
an isolation layer is at least partially arranged between the water collecting tank and the first filtering structure.
5. The in-pit dump of any of claims 2 to 4, wherein:
the width of the containing groove is gradually reduced from the notch to the groove bottom.
6. The in-pit dump of any of claims 2 to 4, wherein:
and a flexible impermeable layer is at least locally arranged in the accommodating groove.
7. The in-pit dump of any of claims 1-4, wherein:
the number of the water collecting and storing stratum structures is multiple, and the multiple water collecting and storing stratum structures are sequentially arranged at intervals from the discharge area to one side far away from the working wall.
8. The in-pit dump of claim 7, wherein:
and a water blocking dam is arranged between the adjacent water collecting and storing stratum structures, and a pumping well is arranged on the water blocking dam.
9. The in-pit dump of claim 8, wherein:
at least one communicating pipe is arranged between the pumping well and the adjacent water collection and storage stratum structure, and each communicating pipe is provided with a control valve.
10. The in-pit dump of claim 9, wherein:
the quantity of communicating pipe is a plurality of, and is a plurality of communicating pipe is along the axial direction of pumping well sets up at interval in proper order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896760.5A CN113605518A (en) | 2021-08-05 | 2021-08-05 | Internal dumping field for strip mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896760.5A CN113605518A (en) | 2021-08-05 | 2021-08-05 | Internal dumping field for strip mine |
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| CN113605518A true CN113605518A (en) | 2021-11-05 |
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