CN108468567B - Utilize method of the basement rock bending with building coal mine communication type groundwater reservoir - Google Patents
Utilize method of the basement rock bending with building coal mine communication type groundwater reservoir Download PDFInfo
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- CN108468567B CN108468567B CN201810047311.1A CN201810047311A CN108468567B CN 108468567 B CN108468567 B CN 108468567B CN 201810047311 A CN201810047311 A CN 201810047311A CN 108468567 B CN108468567 B CN 108468567B
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- 239000003673 groundwater Substances 0.000 title claims abstract description 97
- 239000011435 rock Substances 0.000 title claims abstract description 80
- 238000005452 bending Methods 0.000 title claims abstract description 67
- 239000003245 coal Substances 0.000 title claims abstract description 39
- 238000004891 communication Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000010276 construction Methods 0.000 claims abstract description 34
- 238000005065 mining Methods 0.000 claims abstract description 14
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 230000035699 permeability Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000003892 spreading Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 230000003204 osmotic effect Effects 0.000 claims description 3
- 238000009411 base construction Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of using method of the basement rock bending with building coal mine communication type groundwater reservoir, and it includes following steps: step 1: basement rock bending band groundwater reservoir builds the exploration of library geological conditions；Step 2: the optional construction address of basement rock bending band groundwater reservoir determines；Step 3: basement rock bending band communication type groundwater reservoir connectivity constructs；Step 4: mine water conveying, recharge and extraction system construction；Thus, the present invention is analyzed by the geological conditions built to basement rock bending with groundwater reservoir, on the basis of traditional coal mine groundwater reservoir builds addressing, it proposes and utilizes master-plan of the basement rock bending with building coal mine communication type groundwater reservoir, reduce the invalid outlet of mine water resource, the bending band construction groundwater reservoir for avoiding water resource waste, and mining being made full use of to be formed, reduces engineering construction cost.Final realize farthest protects arid biogeographic zone underground mine mine water resource.
Description
Technical field
The present invention relates to the comprehensive application technology fields of hydraulic engineering, hydrogeology and mining engineering, more particularly to one kind
Utilize method of the basement rock bending with building coal mine communication type groundwater reservoir.
Background technique
Firstly, since leaking crevice belt has been developed to top water-bearing layer, leading to aquifer water in underground mine recovery process
Into goaf, in order to guarantee coal mining safety, it is necessary to discharge mine water.A large amount of mine water resource is pumped to ground,
Cause the waste of water resource.
Secondly, China's water resource and coal resources are in contrary distribution, 14 Large-scale Coal bases are predominantly located at northwest, northeast
Equal arid biogeographic zones, evaporation capacity is 4~6 times of precipitation, after mine water outlet earth's surface, but since evaporation capacity is big, cannot effectively be stored
And utilization.
Third, in underground mine recovery process, inbreak, which occurs, for above goaf roof strata is destroyed, and is formed caving zone, is emitted
Fracture and bending subsidence will also be occurred with top rock stratum in succession by falling, wherein bending band is in move integrally substantially, on vertical section,
Bending is with upper and lower each section deflection difference very little.Rock section is water barrier, constitutes the bottom plate and dam body of groundwater reservoir, is not required to
The artificial dam structures such as waterwall are built as Ordos Basin Jurassic System Coalfield, save a large amount of engineering cost.On cover
Quaternary loose soils are mainly made of the biggish gravel of partial size and medium coarse sand particle, and this layer of underground water has dried up, and are provided non-
Normal good water resource underground storage space.
Band construction groundwater reservoir is bent using basement rock and stores water resource, on the one hand can protect water resource, on the other hand then
Mine water not outlet may be implemented.Reasonable groundwater reservoir position choose be not only related to the region topography and geomorphology, texture
It makes, formation lithology and bottom basement rock permeability etc., and closely related with coal production mode and drainage system form, not
Under conditions of influence coal mine normally produces, the mine water for realizing that underground coal exploitation disturbance is formed rationally is delivered to the groundwater reservoir
It is stored.Therefore, before realizing basement rock bending band storage mine water, basement rock bending band building coal mine communication type need to be carried out
The design of lower storage reservoir method.
For this purpose, designer of the invention, in view of drawbacks described above, by concentrating on studies and designing, synthesis is engaged in for many years for a long time
The experience and achievement of related industry, researching and designing go out it is a kind of utilize basement rock bending band construct coal mine communication type groundwater reservoir side
Method, to overcome drawbacks described above.
Summary of the invention
The purpose of the present invention is to provide a kind of using method of the basement rock bending with building coal mine communication type groundwater reservoir, leads to
It crosses the geological conditions such as the hydrometeorology to groundwater reservoir region, geological structure, formation lithology to explore, in conjunction with mine water
Drainage system is bent band using basement rock and designs reasonable coal mine communication type groundwater reservoir, realizes the reasonable of underground mine mine water
Storage and effective use.Solve problems of the prior art.
To solve the above problems, the invention discloses a kind of using basement rock bending with building coal mine communication type groundwater reservoir
Method, characterized by comprising the steps of:
Step 1: basement rock bending band groundwater reservoir builds the exploration of library geological conditions；
Formation lithology, geological structure etc. are explored on the basis of compiling exploration data early period, determine basement rock
Water-resisting property, the 4th are permeability and storage capacity；
Step 2: the optional construction address of basement rock bending band groundwater reservoir determines；
According to the geologic parameter that step 1 obtains, it is bent downwardly degree in conjunction with coal mining thickness and basement rock, to determine jointly
It is suitble to cover bending band on the working face of reservoir construction；
Step 3: basement rock bending band communication type groundwater reservoir connectivity constructs；
Using communication type groundwater reservoir of the bending with construction is covered on working face, groundwater reservoir is made to be interconnected；
Step 4: mine water conveying, recharge and extraction system construction；
The highest groundwater reservoir of tectonic basement absolute altitude is selected, using inverted well by mine Water Spreading to groundwater reservoir, then
Using the communicating passage between groundwater reservoir bottom board slope and reservoir, realize that the water of all reservoirs connects each other, on basement rock top circle
Absolute altitude minimum groundwater reservoir in face builds extraction well, the water in groundwater reservoir is evacuated to ground, as mining area production and living water.
Wherein: in step 2, bending band require bottom basement rock osmotic coefficient k < 0.001m/d, Quaternary Strata it is effective
Porosity n > 25%, specific capacity q > 5.0L/ (sm).
Wherein: in step 3, basement rock bending band surrounding is covered on each working face and forms water proof dam body, using it is long away from
It is bent construction drill between band in basement rock from directional drilling machine, groundwater reservoir is made to be interconnected.
It can be seen from the above content that of the invention have using basement rock bending with the method for building coal mine communication type groundwater reservoir
There is following effect:
1, it is analyzed by the geological conditions built to basement rock bending with groundwater reservoir, is built in traditional coal mine groundwater reservoir
If on the basis of addressing, proposing using master-plan of the basement rock bending with building coal mine communication type groundwater reservoir, reducing mine
The invalid outlet of water resource, causes water resource waste；
2, it realizes mine water resource underground storage, reduces earth's surface invalid evaporation, protect groundwater resources.
3, the bending band construction groundwater reservoir for making full use of mining to be formed, reduces engineering construction cost.It is final to realize maximum
Protect to degree arid biogeographic zone underground mine mine water resource.
Detailed content of the invention can be obtained by aftermentioned explanation and institute's attached drawing.
Detailed description of the invention
Fig. 1 shows that the installation of the method for the invention using basement rock bending with building coal mine communication type groundwater reservoir is illustrated
Figure.
Fig. 2 is groundwater reservoir addressing diagrammatic cross-section；
Fig. 3 is communicating passage (plane) schematic diagram between directional drilling construction reservoir；
Fig. 4 is communicating passage (section) schematic diagram between directional drilling construction reservoir；
Fig. 5 is mine water conveying, recharge and extraction system floor map；
Fig. 6 is note (pumping) well diagrammatic cross-section.
Specific embodiment
Referring to Fig. 1 and 2, it is shown that of the invention to utilize method of the basement rock bending with building coal mine communication type groundwater reservoir.
The technical problem that solves of method needs for being bent band building coal mine communication type groundwater reservoir using basement rock includes:
To the groundwater reservoir construction area of quasi- selection, needs to carry out the research including formation lithology, geological structure, spatial dimension and (use
Exploration data early period is collected, the technological means of field reconnaissance, physical prospecting probing comprehensive verification), emphasis is to basement rock top plate (reservoir bottom
Plate) water-resisting property, Quaternary Strata water storage and water transmitting ability detection；In conjunction with coal mine ground drainage system and water system, realize
Mine water determines reasonable groundwater reservoir construction address to the optimal transport of groundwater reservoir；Fully consider mining area water supply system cloth
It sets, provides convenience to store the pump drainage utilization of water in groundwater reservoir.
Specific purposes to realize the present invention as a result, it is described to utilize basement rock bending band building coal mine communication type groundwater reservoir
Method comprise the following steps:
Step 1: basement rock bending band groundwater reservoir builds the exploration of library geological conditions；
It is right using the means of field reconnaissance, physical prospecting drilling comprehensive verification on the basis of compiling exploration data early period
Formation lithology, geological structure etc. are explored, it is preferred to use boring coring means are to reservoir bottom basement rock, top Quaternary Strata
Collection of rock sample is carried out, indoor detection rock sample partial size (thin section identification method and sieve method under mirror), porosity (hold-up drain are passed through
Method), the methods of permeability (gas permeability measuring method) determine geologic parameter, determine basement rock water-resisting property, the 4th be permeability and
Storage capacity etc.；
Step 2: the optional construction address of basement rock bending band groundwater reservoir determines；
Formation lithology, geological structure, bottom basement rock permeability, the Quaternary Strata storage capacity etc. obtained according to step 1
Geologic parameter is bent downwardly degree in conjunction with coal mining thickness and basement rock, is suitble on the working face of reservoir construction to determine jointly
Bending band (bending subsidence > 3m), basement rock bending band communication type water reservoir address challenges geological conditions it is relatively stable (construction not
Development), the relatively strong (active porosity of bottom basement rock barrier properties preferably (osmotic coefficient k < 0.001m/d), Quaternary Strata storage capacity
Spend n > 25%, specific capacity q > 5.0L/ (sm)) region；
Step 3: basement rock bending band communication type groundwater reservoir connectivity constructs；
Using bending band construction communication type groundwater reservoir is covered on being formed during working face extraction, due to working face in the pit
Between coal column influence, basement rock bending band surrounding is covered on each working face and forms water proof dam body, utilizes long range Directional Drilling
Machine construction drill between basement rock bending band, makes groundwater reservoir be interconnected；
Step 4: mine water conveying, recharge and extraction system construction；
The highest groundwater reservoir of tectonic basement absolute altitude is selected, based on best (most short) conveying distance, mine water is transported
It is recycled between groundwater reservoir bottom board slope and reservoir to destination using inverted well by mine Water Spreading to groundwater reservoir
Communicating passage realizes that the water of all reservoirs connects each other, builds extraction well in the minimum groundwater reservoir of tectonic basement absolute altitude, will
Water in groundwater reservoir is evacuated to ground, as mining area production and living water.
As a result, through the above steps, the present invention is divided by the geological conditions built to basement rock bending with groundwater reservoir
Analysis proposes on the basis of traditional coal mine groundwater reservoir builds addressing and is bent band building coal mine communication type underground using basement rock
The master-plan of reservoir is realized and farthest protects arid biogeographic zone underground mine mine water resource.
In one particular embodiment of the present invention, basement rock bending band construction is utilized with the buried underground mine in the field with "nine squares" Chen Qi
It is further described for communication type reservoir, which exploits No. 16 coals of Yi Min group, six panels is divided into, at present in south
One can store 313 wherein covering basement rock bending band on 4 working faces as groundwater reservoir with 5 working faces of a northern paneling
×104m3Mine water can greatly reduce using these water resources as shaft production domestic water to surface water and groundwater resources
Exploitation, and reduce 21,600,000 yuan of enterprise water use expense (local 6.9 yuan/m of water price3), and the groundwater reservoir can recycle for a long time
It uses, economic results in society are huge.
It is carried out furtherly so that the buried underground mine in the field with "nine squares" Chen Qi is bent band construction communication type reservoir using basement rock as an example
Bright, which exploits No. 16 coals of Yi Min group, is divided into six panels, at present in one paneling of south one and north, 5 work
Face, therefore earlier production zone carries out basement rock bending band groundwater reservoir building method and designs.
Step 1: basement rock bending builds the exploration of library geological conditions with groundwater reservoir: compiling this field with "nine squares" exploration data early period
On the basis of, using physical prospecting and drilling integrated exploration method, to south one and northern 5, a panel mining face formation lithology, geology
Construction etc. is analyzed and summarized, and is sampled to reservoir bottom basement rock, top Quaternary Strata, laboratory testing its permeability,
Storage capacity, the results showed that reservoir bottom basement rock is made of No. 15 coal seams, mud stone and silty, and water-resisting property is preferable；4th
It is that stratum is made of particles such as gravel, coarse sands, storage capacity is strong, and hydrodynamic condition is good.
Step 2: basement rock bending is determined with the optional construction address of groundwater reservoir: being obtained according to above-mentioned steps exploration or actual measurement
Parameter, condition, basement rock bending require the area that geological conditions is relatively preferable, basal bed barrier properties are good with communication type groundwater reservoir
Domain, as depicted in figs. 1 and 2, it includes B, C, D, E that basement rock bending band is covered on the optional working face as reservoir construction；Location A exists
The biggish tomography of drop is not suitable for building address as groundwater reservoir.
Step 3: basement rock bending is constructed with communication type groundwater reservoir connectivity: due to the shadow of coal column between working face in the pit
Ring, basement rock bending band surrounding covered on each working face and forms water proof dam body (Fig. 1 and Fig. 2), by B, C, D, E groundwater reservoir every
It opens, nearly horizontal orientation of being constructed between basement rock bending band using long range directional drilling machine is drilled, and is protected in dam body position setting of casing
Hydraulic connection long-term between groundwater reservoir is demonstrate,proved, realizes that B, C, D, E groundwater reservoir are interconnected (Fig. 3 and Fig. 4).
Step 4: mine water conveying, recharge and extraction system construction: the selection highest groundwater reservoir of tectonic basement absolute altitude,
Based on best (most short) conveying distance, mine water is transported to destination (B reservoir basement rock absolute altitude extreme higher position) from treating stations,
Using inverted well by mine Water Spreading to groundwater reservoir, the communicating passage between groundwater reservoir bottom board slope and reservoir is recycled,
It realizes that the water of all reservoirs connects each other, builds extraction well (E reservoir basement rock in the minimum groundwater reservoir of tectonic basement absolute altitude
Absolute altitude extreme lower position), the water in groundwater reservoir is evacuated to ground, as mining area production and living with water (Fig. 5).It water injection well and draws water
Well lower semisection is all made of floral tube (filter pipe, Fig. 6), enters groundwater reservoir in favor of mine Water Spreading and extracts out from groundwater reservoir
Water resource.
It is of the invention as a result, to be had the advantages that using basement rock bending with the method for building coal mine communication type groundwater reservoir
1, it is analyzed by the geological conditions built to basement rock bending with groundwater reservoir, is built in traditional coal mine groundwater reservoir
If on the basis of addressing, proposing using master-plan of the basement rock bending with building coal mine communication type groundwater reservoir, reducing mine
The invalid outlet of water resource, causes water resource waste；
2, it realizes mine water resource underground storage, reduces earth's surface invalid evaporation, protect groundwater resources.
3, the bending band construction groundwater reservoir for making full use of mining to be formed, reduces engineering construction cost.It is final to realize maximum
Protect to degree arid biogeographic zone underground mine mine water resource.
It is readily apparent that above description and record is only illustrated in the disclosure being not intended to be limiting of the invention
Appearance, application or use.Although describing and being described in the accompanying drawings embodiment in embodiment, the present invention is not limited
Be described as by attached drawing example and in embodiment it is now recognized that optimal mode to implement the particular case of the teachings of the present invention
Son, the scope of the present invention will include any embodiment for falling into the description and appended claims of front.
Claims (3)
1. a kind of utilize method of the basement rock bending with building coal mine communication type groundwater reservoir, characterized by comprising the steps of:
Step 1: basement rock bending band groundwater reservoir builds the exploration of library geological conditions；
Formation lithology, geological structure are explored on the basis of compiling exploration data early period, determine basement rock water-resisting property,
4th is permeability and storage capacity；
Step 2: the optional construction address of basement rock bending band groundwater reservoir determines；
According to the geologic parameter that step 1 obtains, it is bent downwardly degree in conjunction with coal mining thickness and basement rock, is suitble to determine jointly
Bending band is covered on the working face of reservoir construction；
Step 3: basement rock bending band communication type groundwater reservoir connectivity constructs；
Using communication type groundwater reservoir of the bending with construction is covered on working face, groundwater reservoir is made to be interconnected；
Step 4: mine water conveying, recharge and extraction system construction；
The highest groundwater reservoir of tectonic basement absolute altitude is selected, using inverted well by mine Water Spreading to groundwater reservoir, is recycled
Communicating passage between groundwater reservoir bottom board slope and reservoir realizes that the water of all reservoirs connects each other, in tectonic basement mark
High minimum groundwater reservoir builds extraction well, the water in groundwater reservoir is evacuated to ground, as mining area production and living water.
2. utilizing method of the basement rock bending with building coal mine communication type groundwater reservoir as described in claim 1, it is characterised in that:
In step 2, bending band require bottom basement rock osmotic coefficient k<0.001m/d, Quaternary Strata effecive porosity n>25%,
Specific capacity q > 5.0L/ (sm).
3. utilizing method of the basement rock bending with building coal mine communication type groundwater reservoir as described in claim 1, it is characterised in that:
In step 3, basement rock bending band surrounding is covered on each working face and forms water proof dam body, using long range directional drilling machine in base
Construction drill between rock bending band, makes groundwater reservoir be interconnected.
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| CN111366303B (en) * | 2020-03-31 | 2021-04-13 | 山东大学 | Simulation platform, experiment system and method for reservoir leakage detection experiment |
| CN111707593A (en) * | 2020-05-27 | 2020-09-25 | 神华神东煤炭集团有限责任公司 | Coal mine underground reservoir bottom plate permeability detection and stability evaluation method |
| CN112901271B (en) * | 2021-03-17 | 2023-06-27 | 中国煤炭地质总局勘查研究总院 | Method for constructing underground water storage space by middle-life stratum |
| CN113895852B (en) * | 2021-11-11 | 2023-06-20 | 张国建 | Atmospheric precipitation storage underground reservoir system and construction method |
| CN114109492B (en) * | 2021-12-10 | 2023-11-03 | 国家能源投资集团有限责任公司 | Construction method of coal mine double-layer underground reservoir |
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