CN106285571B - A kind of pre- mining system of water resources in coal mines subregion and method - Google Patents
A kind of pre- mining system of water resources in coal mines subregion and method Download PDFInfo
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- CN106285571B CN106285571B CN201610867837.5A CN201610867837A CN106285571B CN 106285571 B CN106285571 B CN 106285571B CN 201610867837 A CN201610867837 A CN 201610867837A CN 106285571 B CN106285571 B CN 106285571B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 296
- 239000003245 coal Substances 0.000 title claims abstract description 151
- 238000005065 mining Methods 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000003973 irrigation Methods 0.000 claims abstract description 9
- 230000002262 irrigation Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000003673 groundwater Substances 0.000 claims description 30
- 238000011084 recovery Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000000706 filtrate Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 6
- 229920006351 engineering plastic Polymers 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000003809 water extraction Methods 0.000 claims 1
- 102000010637 Aquaporins Human genes 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 108010063290 Aquaporins Proteins 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 108091006146 Channels Proteins 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/082—Screens comprising porous materials, e.g. prepacked screens
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- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of pre- mining system of water resources in coal mines subregion and method, the pre- mining system of water resources in coal mines subregion includes water resource mining system and water resource irrigation and drainage system；The water resource mining system includes for protruding into the pipe well of water resource production zone, the first water pump and pumping conduit, and the water resource irrigation and drainage system includes water space, the second water pump and drainage pipeline；One end of the pumping conduit is located in the pipe well, and the water inlet of the other end and first water pump is in fluid communication, and first water pump is located at outside the pipe well；The water space is located at the downstream of first pump outlet；One end of the drainage pipeline is located in the water space, and the water inlet of the other end and second water pump is in fluid communication；Second water pump is located at outside the water space.System and method of the invention are prevented, are developed, protected and are repaired to the water resource in coal mining region according to the actual situation, realize that water resource is protected in advance.
Description
Technical field
The invention belongs to coal mining technology fields and water resources comprehensive utilization field, are related to a kind of water resources in coal mines subregion
Pre- mining system and method.
Background technique
The amount of storage of the coal in China accounts for the first in the world, is coal production, all very huge country of consumption.With coal
The rising of demand, coal mining are also correspondingly improved.It is domestic at present there are mainly two types of coal mining form, including outdoor open
It adopts and underground mining.The mode of underground mining coal is very easy to appearance sinking, top plate and country rock and is caving, and causes water-bearing layer broken
Bad, all kinds of water-bearing layers underground water quickly leaks and the problem of ground surface collapses even occurs in outlet.Have an opencast mining of the side of coal
Formula is segmented into removing soil and destroys, and causes the subsidence and ground fissure of minery and surrounding area, leads to river water
Leakage, river deformation, are dried up at cutout, to influence farming and the plant growth in soil, or even existing landslide, mud-rock flow
The problems such as.Groundwater flow can be largely destroyed during coal mining, under causing level of ground water to occur quickly
Drop, makes a big impact to the hydrology, coal mining also polluted underground water and surface water to a certain extent.In the mistake of coal mining
Cheng Zhong, since drainage sunk well expense is relatively high, most of enterprise is all expelled directly out untreated sewage, to lead
There are groundwater resources and is destroyed in cause.There are two types of water-retaining production modes at present, are jacking of floor and reduction leeding water rent respectively
Band height etc..Jacking of floor is that the place weak to bottom plate water proof carries out slip casting reinforcing, reduces permeability and improves anti-pressure ability,
Realize the purpose reinforced and blocked；The height for reducing leaking crevice belt can pass through separate zone production, filling mining, overlying strata separation layer grouting
The modes such as method and Striping noise are realized.Existing water-retaining production is that counter-measure is taken in progress of coal mining, is belonged to
Passive Defence is inevitably polluted and is lost to local water resource.Coal mining influences to destroy water resource to be visitor
Reality is seen, how to control, mitigates the key technology difficulty that influence of the coal mining to water resource destroys.
Summary of the invention
The purpose of the present invention is to provide a kind of pre- mining system of water resources in coal mines subregion and method, system of the invention and
Method is prevented, is developed, protected and is repaired to the water resource in coal mining region according to the actual situation, realizes that water resource shifts to an earlier date
Protection, the multiple target for reducing coal mine mine pit water discharge, reducing drainage sunk well expense, quickly repairing local environment.
To achieve the above object, the present invention provides a kind of pre- mining system of water resources in coal mines subregion, the coal mine water moneys
The pre- mining system of source partition includes water resource mining system and water resource irrigation and drainage system；The water resource mining system includes being used for
The pipe well, the first water pump and pumping conduit of water resource production zone are protruded into, the water resource irrigation and drainage system includes water space,
Two water pumps and drainage pipeline；One end of the pumping conduit is located in the pipe well, and the other end enters water with first water pump
Mouth is in fluid communication, and first water pump is located at outside the pipe well；The water space is located at first pump outlet
Downstream；One end of the drainage pipeline is located in the water space, and the water inlet fluid of the other end and second water pump connects
It is logical；The water outlet of second water pump is located at outside the water space.
Preferably, for the depth of the pipe well less than 200 meters, the nozzle diameter of pipe well is 50-1000 millimeters.
Preferably, the pipe well include wall casing, in the wall casing filter of middle and lower part and be located at the well
Sediment tube below filter described in wall pipe.
Preferably, one of material selection steel, cast iron, concrete, ceramics and engineering plastics of the wall casing or several
Kind.
Preferably, the filter includes filtering skeleton and the filtrate that is filled in filtering skeleton.
Preferably, the filtering skeleton is bar material, and the hole of the circle or bar shaped that are in fluid communication up and down is arranged inside
Road, the filtrate are filled in the duct, and the filtrate is porous material or sand gravel or cobble with gradation.
Preferably, the material of the sediment tube is selected from one of steel, cast iron, concrete, ceramics and engineering plastics or more
Kind.
The present invention also provides a kind of pre- recovery method of water resources in coal mines subregion, this method includes：
1), coal mining region is detected, to determine water resources in coal mines thickness, area, recharge of ground water channel and lead
Aquaporin developmental state；
2), according to the mining sequence in coal mining region, coal mining region is divided into Z1, Z2, Z3..., Zn, and to coal
Conduit pipe and underground water circulating area between mine production zone carry out boring grouting reinforcing；
3), to coal mining region Z1Underground latent water layer and artesian aquifer use water resources in coal mines provided by the present invention
The pre- mining system groundwater abstraction of subregion is simultaneously delivered to the water space, then digs up mine；Wherein, the pumping of the underground water
Taken amount is W1, W1=W11+W12；W11For coal mining region Z1Underground latent water layer groundwater run off, W11=μ11·F11·h11,
μ11For the specific yield of underground latent water layer, F11For the area of underground latent water layer, h11For the thickness of underground latent water layer；W12It is opened for coal mine
Exploiting field domain Z1Artesian aquifer groundwater run off, W12=μ12·F12·h12, μ12For water storage coefficient, F12For the face of artesian aquifer
Product, h12The pressure head height counted for artesian aquifer from top plate；
4), to coal mining region Z2Underground latent water layer and artesian aquifer use water resources in coal mines provided by the present invention
The pre- mining system groundwater abstraction of subregion is simultaneously delivered to the coal mining region Z1Underground latent water layer and artesian aquifer in, so
After dig up mine, superfluous water is delivered to the water space, and inadequate water is delivered to the coal mining from the water space
Region Z1；Wherein, the extraction amount of the underground water is W2, W2=W21+W22；W21For coal mining region Z2Underground latent water layer
Groundwater run off, W21=μ21·F21·h21, μ21For the specific yield of underground latent water layer, F21For the area of underground latent water layer, h21For ground
The thickness of lower water table aquifer；W22For coal mining region Z2Artesian aquifer groundwater run off, W22=μ22·F22·h22, μ22For storage
Water coefficient, F22For the area of artesian aquifer, h12The pressure head height counted for artesian aquifer from top plate；
5) according to Z1, Z2, Z3..., ZnSequence carry out exploiting the coal mining region, to the coal mining region Zn
Exploitation finishes, and is delivered to the water of the water space using the pre- mining system of water resources in coal mines subregion provided by the present invention described
Coal mining region ZnIn.
Preferably, to coal mining region Z described in step 3)1Underground latent water layer and artesian aquifer use institute of the present invention
The pre- mining system groundwater abstraction of the water resources in coal mines subregion of offer and the step of being delivered to the water space includes：
Pipe well is squeezed into the coal mining region Z1Underground latent water layer and artesian aquifer, pumping is passed through using the first water pump
Underground water in water table aquifer and artesian aquifer is extracted out and is delivered to the water space by waterpipe；
To coal mining region Z described in step 4)2Underground latent water layer and artesian aquifer using provided by the present invention
The pre- mining system groundwater abstraction of water resources in coal mines subregion is simultaneously delivered to the coal mining region Z1Underground latent water layer and hold
Pressure water layer in step include：
Pipe well is squeezed into the coal mining region Z2Underground latent water layer and artesian aquifer, pumping is passed through using the first water pump
Underground water in water table aquifer and artesian aquifer is extracted out and by the coal mining region Z by waterpipe1Pipe well be delivered to institute
State coal mining region Z1Underground latent water layer and artesian aquifer in；
Use the pre- mining system of water resources in coal mines subregion provided by the present invention by the water space described in step 5)
Water be delivered to the coal mining region ZnIn step include：
Pipe well is squeezed into the coal mining region ZnUnderground latent water layer and artesian aquifer, row is passed through using the second water pump
The water of the water space is delivered to the coal mining region Z by waterpipenIn.
The invention has the advantages that：
1. the underground water supplement channel that isolation coal mining region is related to, the groundwater abstraction before coal mine digging can be effective
Mine pit water discharge in mining process, sewage treatment, drainage works amount in reduction mining process are reduced, while it is dirty to greatly reduce leakage
Dye deep phreatic water and outlet Mine waste water polluted surface water even pass through the possibility of the underground water around leakage pollution mining area
Property.
2. pollution of the underground water without coal mining extracted, the production and living that can be used for coal mine after detection is qualified are used
Water can also supply water to surrounding and carry out useful supplement.
3. by pipe well recharge underground water after exploitation of coal resources, descend over the ground in time water table aquifer and underground bearing water into
Row supplement, restores the cycling condition of original groundwater resources, mitigates influence of the coal mining to water resource and destroys, is effectively improved
Region environment.
Detailed description of the invention
Fig. 1 is a kind of knot of a kind of specific embodiment of the pre- mining system of water resources in coal mines subregion disclosed by the invention
Structure schematic diagram.
Fig. 2 is the process of specific embodiment in the one of a kind of pre- recovery method of water resources in coal mines subregion disclosed by the invention
Schematic diagram.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
As shown in Figure 1, a kind of pre- mining system of water resources in coal mines subregion provided by the invention, the water resources in coal mines subregion
Pre- mining system includes water resource mining system and water resource irrigation and drainage system；The water resource mining system includes for protruding into water
The pipe well 1 in resource exploitation region, the first water pump 2 and pumping conduit 3, the water resource irrigation and drainage system include water space 4, second
Water pump 5 and drainage pipeline 6；One end of the pumping conduit 3 is located in the pipe well 1, and the other end enters with first water pump 2
The mouth of a river is in fluid communication, and it is external that first water pump (2) is located at the pipe well (1)；The water space 4 is located at first water pump
The downstream of 2 water outlets；One end of the drainage pipeline 6 is located in the water space 4, the other end and second water pump 5
Water inlet connection；Second water pump 5 is located at outside the water space 4.
The depth of the pre- mining system of water resources in coal mines subregion, pipe well 1 stores the ground dive being related to by underground coal mine
The depth of water layer and artesian aquifer determines that depth is generally within 200m, nozzle diameter 50-1000mm, and pipe well 1 includes wall casing
10, filter 11 and sediment tube 12.Steel, cast iron, concrete, ceramics and engineering plastics etc. can be selected in 10 material of wall casing, are used for
The water-bearing layer that Reinforcing Shaft and isolation coal mining are not involved with；Filter 11 includes filtering skeleton and filtrate, is mounted on water-bearing layer
Section, for collecting underground water and water-bearing layer being kept to stablize, wherein may include framework of steel reinforcement, circular hole or hole filter, in filtrate
The sand gravel cobble of object porous material or certain gradation can be filled in portion.Sediment tube 12 is placed on 11 lower section of filter, for precipitating
Steel, cast iron, concrete, ceramics and engineering plastics etc. can be used in the tiny grains of sand, material.
As shown in Fig. 2, the present invention also provides a kind of pre- recovery method of water resources in coal mines subregion, this method includes：
1), coal mining region is detected, to determine water resources in coal mines thickness, area, recharge of ground water channel and lead
Aquaporin developmental state；Such as it can be using underground water combined detection technologies such as nuclear magnetic resonance；
2), according to the mining sequence in coal mining region, coal mining region is divided into Z1, Z2, Z3..., Zn, and to coal
Conduit pipe and underground water circulating area between mine production zone carry out boring grouting reinforcing；
3), to coal mining region Z1The underground latent water layer and artesian aquifer in (first exploiting field) use coal provided by the present invention
The pre- mining system groundwater abstraction of mineral water resource partitioning is simultaneously delivered to the water space, then digs up mine；Wherein, describedly
The extraction amount being lauched is W1, W1=W11+W12；W11For coal mining region Z1Underground latent water layer groundwater run off, W11=μ11·
F11·h11, μ11For the specific yield of underground latent water layer, F11For the area of underground latent water layer, h11For the thickness of underground latent water layer；W12
For coal mining region Z1Artesian aquifer groundwater run off, W12=μ12·F12·h12, μ12For water storage coefficient, F12For artesian water
The area of layer, h12The pressure head height counted for artesian aquifer from top plate；The underground water of extraction can also be used for coal mining
Production and living water；
4), to coal mining region Z2Underground latent water layer and artesian aquifer are using water resources in coal mines provided by the present invention point
The pre- mining system groundwater abstraction in area is simultaneously delivered to the coal mining region Z1In underground latent water layer and artesian aquifer, then into
Row mining, superfluous water are delivered to the water space, and inadequate water is delivered to the coal mining region from the water space
Z1；Wherein, the extraction amount of the underground water is W2, W2=W21+W22；W21For coal mining region Z2Underground latent water layer underground
Water, W21=μ21·F21·h21, μ21For the specific yield of underground latent water layer, F21For the area of underground latent water layer, h21For ground dive
The thickness of water layer；W22For coal mining region Z2Artesian aquifer groundwater run off, W22=μ22·F22·h22, μ22For water storage system
Number, F22For the area of artesian aquifer, h12The pressure head height counted for artesian aquifer from top plate；The underground water of extraction can also
Production and living water for coal mining；
5) according to Z1, Z2, Z3..., ZnSequence carry out exploiting the coal mining region, to the coal mining region Zn
Exploitation finishes, and the water of the water space is delivered to institute using the pre- mining system of water resources in coal mines subregion provided by the present invention
State coal mining region ZnIn.Wherein, the underground water W that each coal mining region is extracted2, W3, W4..., WnIt circuits sequentially back
One coal mining region, W1Water be recycled back to coal mining region Zn。
A kind of specific embodiment, to coal mining region Z described in step 3)1Underground latent water layer and artesian aquifer adopt
The step of with the pre- mining system groundwater abstraction of water resources in coal mines subregion provided by the present invention and being delivered to the water space
Including：
Pipe well 1 is squeezed into the coal mining region Z1Underground latent water layer and artesian aquifer, passed through using the first water pump 2
Underground water in water table aquifer and artesian aquifer is extracted out and is delivered to the water space 4 by pumping conduit 3；
To coal mining region Z described in step 4)2Underground latent water layer and artesian aquifer using provided by the present invention
The pre- mining system groundwater abstraction of the water resources in coal mines subregion is simultaneously delivered to the coal mining region Z1Underground latent water
Layer and artesian aquifer in step include：
Pipe well 1 is squeezed into the coal mining region Z2Underground latent water layer and artesian aquifer, passed through using the first water pump 2
Underground water in water table aquifer and artesian aquifer is extracted out and by the coal mining region Z by pumping conduit 31Pipe well 1 convey
To the coal mining region Z1Underground latent water layer and artesian aquifer in；
Use the pre- mining system of water resources in coal mines subregion provided by the present invention by the water space described in step 5)
Water be delivered to the coal mining region ZnIn step include：
Pipe well 1 is squeezed into the coal mining region ZnUnderground latent water layer and artesian aquifer, passed through using the second water pump 5
The water of the water space 4 is delivered to the coal mining region Z by drainage pipeline 6nIn.
The irrigation and drainage system, water space refer to the retention volume >=exploiting field head Z1Groundwater mining amount pond or existing
Reservoir facility.
If it is extra that the water in each coal mining region has, it is sent into water space, water is inadequate, then it is taken from water space,
The water of water space can be used for domestic water.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of pre- recovery method of water resources in coal mines subregion, which is characterized in that this method includes：
1), coal mining region is detected, to determine that water resources in coal mines thickness, area, recharge of ground water channel and water guide are logical
Road developmental state；
2), according to the mining sequence in coal mining region, coal mining region is divided into Z1, Z2, Z3..., Zn, and to coal mining
Conduit pipe and underground water circulating area between region carry out boring grouting reinforcing；
3), to coal mining region Z1Underground latent water layer and artesian aquifer extracted using the pre- mining system of water resources in coal mines subregion
Underground water is simultaneously delivered to water space, then digs up mine；Wherein, the pre- mining system of water resources in coal mines subregion includes water money
Source mining system and water resource irrigation and drainage system；The water resource mining system includes the pipe well for protruding into water resource production zone
(1), the first water pump (2) and pumping conduit (3), the water resource irrigation and drainage system include water space (4), the second water pump (5) and
Drainage pipeline (6)；One end of the pumping conduit (3) is located in the pipe well (1), the other end and first water pump (2)
Water inlet is in fluid communication, and it is external that first water pump (2) is located at the pipe well (1)；The water space (4) is located at described first
The downstream of water pump (2) water outlet；One end of the drainage pipeline (6) is located in the water space (4), the other end and described the
The water inlet of two water pumps (5) is in fluid communication；It is external that second water pump (5) is located at the water space (4)；The underground water
Extraction amount is W1, W1=W11+W12；W11For coal mining region Z1Underground latent water layer groundwater run off, W11=μ11·F11·
h11, μ11For the specific yield of underground latent water layer, F11For the area of underground latent water layer, h11For the thickness of underground latent water layer；W12For coal
Mine production zone Z1Artesian aquifer groundwater run off, W12=μ12·F12·h12, μ12For water storage coefficient, F12For artesian aquifer
Area, h12The pressure head height counted for artesian aquifer from top plate；
4), to coal mining region Z2Underground latent water layer and artesian aquifer exploit in advance using the water resources in coal mines subregion and be
System groundwater abstraction is simultaneously delivered to the coal mining region Z1Underground latent water layer and artesian aquifer in, then dig up mine,
Superfluous water is delivered to the water space, and inadequate water is delivered to the coal mining region Z from the water space1；Wherein,
The extraction amount of the underground water is W2, W2=W21+W22；W21For coal mining region Z2Underground latent water layer groundwater run off, W21
=μ21·F21·h21, μ21For the specific yield of underground latent water layer, F21For the area of underground latent water layer, h21For the thickness of underground latent water layer
Degree；W22For coal mining region Z2Artesian aquifer groundwater run off, W22=μ22·F22·h22, μ22For water storage coefficient, F22For
The area of artesian aquifer, h12The pressure head height counted for artesian aquifer from top plate；
5) according to Z1, Z2, Z3..., ZnSequence carry out exploiting the coal mining region, to the coal mining region ZnExploitation
It finishes, the water of the water space is delivered to by the Coal Mining Area using the pre- mining system of water resources in coal mines subregion
Domain ZnIn.
2. the pre- recovery method of water resources in coal mines subregion according to claim 1, which is characterized in that coal described in step 3)
Mine production zone Z1Underground latent water layer and artesian aquifer underground extracted using the pre- mining system of the described water resources in coal mines subregion
Water and the step of being delivered to the water space includes：
Pipe well (1) is squeezed into the coal mining region Z1Underground latent water layer and artesian aquifer, passed through using the first water pump (2)
Underground water in water table aquifer and artesian aquifer is extracted out and is delivered to the water space (4) by pumping conduit (3)；
To coal mining region Z described in step 4)2Underground latent water layer and artesian aquifer use the water resources in coal mines subregion
Pre- mining system groundwater abstraction is simultaneously delivered to the coal mining region Z1Underground latent water layer and artesian aquifer in step
Including：
Pipe well (1) is squeezed into the coal mining region Z2Underground latent water layer and artesian aquifer, passed through using the first water pump (2)
Underground water in water table aquifer and artesian aquifer is extracted out and by the coal mining region Z by pumping conduit (3)1Pipe well (1)
It is delivered to the coal mining region Z1Underground latent water layer and artesian aquifer in；
The water of the water space is delivered to by institute using the pre- mining system of water resources in coal mines subregion described in step 5)
State coal mining region ZnIn step include：
Pipe well (1) is squeezed into the coal mining region ZnUnderground latent water layer and artesian aquifer, passed through using the second water pump (5)
The water of the water space (4) is delivered to the coal mining region Z by drainage pipeline (6)nIn.
3. the pre- recovery method of water resources in coal mines subregion according to claim 1, which is characterized in that the depth of the pipe well (1)
For degree less than 200 meters, the nozzle diameter of pipe well (1) is 50-1000 millimeters.
4. the pre- recovery method of water resources in coal mines subregion according to claim 1, which is characterized in that the pipe well (1) includes
Wall casing (10), be located at the wall casing (10) interior middle and lower part filter (11) and be located at the wall casing (10) in described in
Sediment tube (12) below filter (11).
5. the pre- recovery method of water resources in coal mines subregion according to claim 4, which is characterized in that the wall casing (10)
One or more of material selection steel, cast iron, concrete, ceramics and engineering plastics.
6. the pre- recovery method of water resources in coal mines subregion according to claim 4, which is characterized in that filter (11) packet
The filtrate for including filtering skeleton and being filled in filtering skeleton.
7. the pre- recovery method of water resources in coal mines subregion according to claim 6, which is characterized in that the filtering skeleton is steel
The duct of the circle or bar shaped that are in fluid communication up and down is arranged inside in muscle material, and the filtrate is filled in the duct, described
Filtrate is porous material or sand gravel or cobble with gradation.
8. the pre- recovery method of water resources in coal mines subregion according to claim 4, which is characterized in that the sediment tube (12)
Material is selected from one of steel, cast iron, concrete, ceramics and engineering plastics or a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867837.5A CN106285571B (en) | 2016-09-29 | 2016-09-29 | A kind of pre- mining system of water resources in coal mines subregion and method |
Applications Claiming Priority (1)
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