CN106759245A - Opencut coal mine mining freezes the water-retaining method in water-bearing layer - Google Patents
Opencut coal mine mining freezes the water-retaining method in water-bearing layer Download PDFInfo
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- CN106759245A CN106759245A CN201611168705.XA CN201611168705A CN106759245A CN 106759245 A CN106759245 A CN 106759245A CN 201611168705 A CN201611168705 A CN 201611168705A CN 106759245 A CN106759245 A CN 106759245A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 239000003245 coal Substances 0.000 title claims abstract description 65
- 238000005065 mining Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims abstract description 5
- 238000005057 refrigeration Methods 0.000 claims description 40
- 238000007710 freezing Methods 0.000 claims description 35
- 230000008014 freezing Effects 0.000 claims description 35
- 238000010276 construction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007363 ring formation reaction Methods 0.000 claims 1
- 239000003673 groundwater Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000003860 storage Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
- E02D3/115—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means by freezing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/26—Methods of surface mining; Layouts therefor
- E21C41/28—Methods of surface mining; Layouts therefor for brown or hard coal
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of Opencut coal mine mining freezes the water-retaining method in water-bearing layer, it is adaptable to used in coal mining and environmental protection technical field.Region underground reservoir distribution situation is verified by Geology Drilling, implementing dog collar to the underground reservoir in the range of field with "nine squares" using the mode of artificial cooling intercepts, and prevents the underground water beyond the limit of mining of field with "nine squares" from being drained to outdoor pit.It will not produce interference to normal production activity, moreover it is possible to which the body of groundwater for effectively intercepting field with "nine squares" periphery is drained to outdoor pit, maintains the level of ground water of neighboring area, effectively protects the ecological environment on mining area periphery；It is particularly suited for the water protection mining that western bitter cold has an opencast mining of mining area, can make full use of the weather conditions of locality rationally reduces the energy consumption that out tape of the present invention is come, it is economical and environmentally friendly, with dependable with function very high.
Description
Technical field
It is especially a kind of suitable for coal mining and environmental protection technical field the present invention relates to a kind of water-retaining method
Opencut coal mine mining freezes the water-retaining method in water-bearing layer.
Background technology
China western part is mostly the water resources shortage area of arid and semi-arid, and average annual precipitation is less than 400mm, but evaporation capacity
But 2500mm or so is reached.In recent years, continuing to increase with this area's coal mining intensity, cause this area's water environment and
The ecosystem is seriously damaged.Especially in opencast coal field, the stripping of coal seam superstratum causes underground aqueous
Layer is directly truncated, and causes that underground water is largely outer to be arranged, and so as to cause mining area circumferentially to be descended, water level decreasing, natural vegetation be withered, soil
Ground desertification etc., causes to have a strong impact on to the regional nature ecosystem.Therefore, how effectively to be protected during Opencut coal mine mining
Shield water resource, prevent ecological environment from being destroyed to greatest extent, be the great skill faced during China's Coal Development In West
Art problem, is also the key scientific problems of solution needed for water protection mining.
At present, existing related invention proposes, using the mode for reconstructing stratum water-bearing layer, to be built in outdoor pit production zone
Stored and purified in water barrier and water storage space, then the water drainage injection underground storage space that coal mining is produced, from
And reach a kind of purpose (CN201210473021.6, open coal mine underground reservoir, 2014) of fwaater resources protection；However, this kind of
Method can not only produce severe jamming to each operation of coal mining, and due to heavy using stratum is carried out in outdoor pit
The region of structure is limited, causes water storage space to be not enough to a large amount of water drainages that effectively storage coal mining is produced.Meanwhile, also there is correlation
Open coal mine directly carries out retaining and utilizes by the way of cistern is excavated again in refuse dump, but this mode there is also storage
Water is limited and refuse dump soil structures stability is weakened the influence.
The content of the invention
The purpose of the present invention is directed to the problem deposited in prior art, there is provided a kind of method is simple, and isolation effect is good, construction
It is convenient, effectively solve the problems, such as that the water protection mining during the coal exploitation of mine of western and the open coal mine of ecological environmental protection freeze
The water-retaining method in water-bearing layer.
To achieve the above object, Opencut coal mine mining of the invention freezes the water-retaining method in water-bearing layer, comprises the following steps：
A. the multiple hydrology detection drillings of construction downwards in the range of open coal mine coal mining region, according to the water yield in drilling
Situation judges the parameter information such as zone boundary, water-bearing layer buried depth of underground reservoir distribution in the range of open coal mine field with "nine squares"；
B. multiple refrigeration stations are set up by open coal mine in open coal mine pit production zone periphery correspondence field with "nine squares" boundary position
Pit production zone is surrounded, and underground reservoir is implemented to freeze, so as to accordingly descend water-bearing layer region to form one on field with "nine squares" border
Road dog collar, the dog collar formed using multiple refrigeration stations is kept apart open coal mine pit production zone in underground reservoir,
Underground water is prevented to drain runoff to pit position.
The refrigeration station includes refrigerating plant, and refrigeration pipe is arranged in freezing for open coal mine pit production zone with multiple
Hole, wherein refrigerating plant by refrigeration pipe respectively with multiple freezing hole UNICOMs, and by refrigeration pipe by freezing hole in underground
Cold air is spread in water-bearing layer, so that the underground water around freezing hole freezes to form ice wall.
The refrigeration station includes 7~10 freezing holes, and freezing hole arrangement spacing is 5~10m, and bottom hole should be goed deep into underground containing
5m in water barrier below water layer bottom interface.
Multiple refrigeration stations that open coal mine pit production zone is surrounded are with outdoor pit center as origin, with outdoor pit
Distance to field with "nine squares" border is the rounded diverging arrangement of radius, water-bearing layer distributed areas in arrangement scope covering field with "nine squares".
When open coal mine pit production zone subrange is distributed with underground reservoir, i.e., production zone width exceedes week
During the width of the underground reservoir for enclosing, the freezing hole of refrigeration station only needs to be arranged in underground reservoir boundary position, using refrigeration station
Freezing hole formed ice wall the underground water of open coal mine pit both sides is kept apart.
When open coal mine pit production zone four corner is distributed with underground reservoir, i.e., production zone width is less than week
During the width of the underground reservoir for enclosing, then multiple freezing holes of refrigeration station surround the whole field with "nine squares" of covering, whole well with circular arrangement
Field is kept apart the outer underground water with ice within the walls of ice wall using the ice wall that the freezing hole of refrigeration station is formed.
Beneficial effect：This method is based on the hydrogeological occurrence condition in open coal mine field with "nine squares", near the border of field with "nine squares" over the ground
Lower water-bearing layer is implemented artificial cooling and is freezed, and not only will not produce interference to the production such as the coal mining in outdoor pit, transport activity, moreover it is possible to
The body of groundwater for effectively intercepting field with "nine squares" periphery is drained to outdoor pit, maintains the level of ground water of neighboring area, is effectively protected
The ecological environment on mining area periphery.Present invention is particularly suitable for the water protection mining of western bitter cold area open coal mine, can make full use of
The naturally frozen in bitter cold winter, effectively reduces the refrigeration consumption of refrigeration station；That is, during using the present invention, can make full use of
Local climate change, the refrigeration consumption of Reasonable adjustment refrigeration station, its application method reliability is practical.
Compared with prior art in advantages below：
(1) based on the underground reservoir preservation situation in open coal mine field with "nine squares", to underground reservoir near the border of field with "nine squares"
Implement artificial cooling to freeze, will not only produce interference to the production such as the coal mining in outdoor pit, transport activity, moreover it is possible to effectively intercept
The body of groundwater on field with "nine squares" periphery is drained to outdoor pit, maintains the level of ground water of neighboring area, effectively protects mining area periphery
Ecological environment.Its implementation reliability, it is practical；
(2) it is particularly suited for the water protection mining that western bitter cold has an opencast mining of mining area, the weather conditions of locality can be made full use of
Rationally reduce the energy consumption that out tape of the present invention is come, economy and environmentally friendly.
Brief description of the drawings
Fig. 1 is that the water-bearing layer in present invention strip mining transformation field with "nine squares" freezes to arrange profile；
Fig. 2 is to freeze layout drawing when subrange is distributed with underground reservoir in present invention strip mining transformation field with "nine squares"；
Fig. 3 is to freeze layout drawing when four corner is distributed with underground reservoir in present invention strip mining transformation field with "nine squares".
Specific embodiment
One embodiment of the invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, Opencut coal mine mining of the invention freezes the water-retaining method in water-bearing layer, comprise the following steps：
A. the multiple hydrology detection drillings of construction downwards in the range of open coal mine coal mining region, according to the water yield in drilling
Situation judges the parameter information such as zone boundary, water-bearing layer buried depth of underground reservoir distribution in the range of open coal mine field with "nine squares"；
B. multiple refrigeration stations are set up by open coal mine in open coal mine pit production zone periphery correspondence field with "nine squares" boundary position
Pit production zone is surrounded：By open coal mine pit production zone surround multiple refrigeration stations with outdoor pit center as origin,
It is the rounded diverging arrangement of radius with outdoor pit to the distance on field with "nine squares" border, arrangement scope covers water-bearing layer distributed area in field with "nine squares"
Domain；
The refrigeration station includes refrigerating plant, and refrigeration pipe is arranged in freezing for open coal mine pit production zone with multiple
Hole, each refrigeration station includes 7~10 freezing holes, and freezing hole arrangement spacing is 5~10m, and bottom hole should be goed deep into underground reservoir
5m in water barrier below bottom interface, wherein refrigerating plant by refrigeration pipe respectively with multiple freezing hole UNICOMs, and by system
Cold pipeline spreads cold air by freezing hole in underground reservoir, so that the underground water around freezing hole freezes to form ice wall；
Underground reservoir is implemented to freeze, so as to accordingly descend water-bearing layer region to form one dog collar on field with "nine squares" border,
The dog collar formed using multiple refrigeration stations is kept apart open coal mine pit production zone in underground reservoir, prevents underground water
Runoff is drained to pit position.
As shown in Fig. 2 when open coal mine pit production zone subrange is distributed with underground reservoir, i.e. production zone
When width exceedes the width of the underground reservoir of surrounding, the freezing hole of refrigeration station only needs to be arranged in underground reservoir boundary position,
The ice wall formed using the freezing hole of refrigeration station is kept apart the underground water of open coal mine pit both sides.
As shown in figure 3, when open coal mine pit production zone four corner is distributed with underground reservoir, i.e. production zone
When width is less than the width of the underground reservoir of surrounding, then multiple freezing holes of refrigeration station surround the whole well of covering with circular arrangement
Field, whole field with "nine squares" is kept apart the outer underground water with ice within the walls of ice wall using the ice wall that the freezing hole of refrigeration station is formed.
The present invention verifies region underground according to the specific hydrogeologic condition of Opencut coal mine mining by Geology Drilling
Water-bearing layer distribution situation, implements dog collar and intercepts using the mode of artificial cooling to the underground reservoir in the range of field with "nine squares", prevents
Underground water beyond the limit of mining of field with "nine squares" is drained to outdoor pit.The dog collar by freezing hole and its it is supporting freeze pipeline and
Refrigeration station is formed to the water body artificial cooling in underground reservoir.Freezing hole arrange when with outdoor pit center as origin, with
The distance on outdoor pit to field with "nine squares" border is the rounded diverging arrangement of radius, and arrangement scope covers water-bearing layer distributed area in field with "nine squares"
Domain, depth of placement is being deeply advisable to 5m in the water barrier below underground reservoir bottom interface.
The refrigeration process of the refrigeration station is identical with the congealing process in freeze sinking, and (Coal Mining Research Institute grinds in Beijing
Study carefully raw shaft building room,《Coal mine freezing method sinking shaft》, 1975).
Claims (6)
1. a kind of Opencut coal mine mining freezes the water-retaining method in water-bearing layer, it is characterised in that comprise the following steps：
A. the multiple hydrology detection drillings of construction downwards in the range of open coal mine coal mining region, according to the water yield situation in drilling
Judge the parameter information such as zone boundary, water-bearing layer buried depth of underground reservoir distribution in the range of open coal mine field with "nine squares"；
B. multiple refrigeration stations are set up by open coal mine pit in open coal mine pit production zone periphery correspondence field with "nine squares" boundary position
Production zone is surrounded, and underground reservoir is implemented to freeze, and is frozen together so as to accordingly descend water-bearing layer region to be formed on field with "nine squares" border
Ring formation, the dog collar formed using multiple refrigeration stations is kept apart open coal mine pit production zone in underground reservoir, is prevented
Underground water drains runoff to pit position.
2. Opencut coal mine mining according to claim 1 freezes the water-retaining method in water-bearing layer, it is characterised in that：The freezing
Stand including refrigerating plant, refrigeration pipe and multiple freezing holes for being arranged in open coal mine pit production zone, wherein refrigerating plant
By refrigeration pipe respectively with multiple freezing hole UNICOMs, and by refrigeration pipe by freezing hole underground reservoir spread cold air,
So that the underground water around freezing hole freezes to form ice wall.
3. Opencut coal mine mining according to claim 1 freezes the water-retaining method in water-bearing layer, it is characterised in that：The freezing
Stand including 7 ~ 10 freezing holes, freezing hole arrangement spacing is 5 ~ 10m, bottom hole should go deep into underground reservoir bottom interface every
5m in water layer.
4. Opencut coal mine mining according to claim 1 freezes the water-retaining method in water-bearing layer, it is characterised in that：By outdoor coal
Multiple refrigeration stations that ore deposit pit production zone is surrounded are with outdoor pit center as origin, with the distance in outdoor pit to field with "nine squares" border
It is the rounded diverging arrangement of radius, water-bearing layer distributed areas in arrangement scope covering field with "nine squares".
5. the Opencut coal mine mining according to claim 2 or 4 freezes the water-retaining method in water-bearing layer, it is characterised in that：Work as dew
When its colliery pit production zone subrange is distributed with underground reservoir, i.e. production zone width is aqueous more than the underground of surrounding
During the width of layer, the freezing hole of refrigeration station only needs to be arranged in underground reservoir boundary position, is formed using the freezing hole of refrigeration station
Ice wall the underground water of open coal mine pit both sides is kept apart.
6. the Opencut coal mine mining according to claim 2 or 4 freezes the water-retaining method in water-bearing layer, it is characterised in that：Work as dew
When its colliery pit production zone four corner is distributed with underground reservoir, i.e. production zone width is aqueous less than the underground of surrounding
During the width of layer, then multiple freezing holes of refrigeration station surround the whole field with "nine squares" of covering with circular arrangement, and whole field with "nine squares" utilizes refrigeration station
The ice wall that is formed of freezing hole the outer underground water with ice within the walls of ice wall is kept apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168705.XA CN106759245A (en) | 2016-12-16 | 2016-12-16 | Opencut coal mine mining freezes the water-retaining method in water-bearing layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611168705.XA CN106759245A (en) | 2016-12-16 | 2016-12-16 | Opencut coal mine mining freezes the water-retaining method in water-bearing layer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468545A (en) * | 2018-04-19 | 2018-08-31 | 中国矿业大学 | A kind of seasonality adopt-arranges the storage of open coal mine water resource and concocting method |
| CN109057799A (en) * | 2018-07-11 | 2018-12-21 | 中国矿业大学 | It is a kind of the north open coal mine water resource storage and concocting method |
| CN109577980A (en) * | 2018-11-06 | 2019-04-05 | 中国矿业大学 | A kind of underground longwall working face water-protection coal-mining method freezed based on water-bearing layer |
| CN109854231A (en) * | 2019-01-16 | 2019-06-07 | 中国矿业大学 | A kind of method of the equivalent well radius of determining multi-layered aquifer mixed pumping water |
| CN110847954A (en) * | 2019-11-15 | 2020-02-28 | 太原理工大学 | Method for re-mining empty coal seam by accumulated water in tool post type residual mining area with top plate being frozen in sections |
| CN111350203A (en) * | 2020-03-06 | 2020-06-30 | 呼伦贝尔东明矿业有限责任公司 | Liquid-stopping freezing device and liquid-stopping freezing method |
| CN113106988A (en) * | 2021-04-14 | 2021-07-13 | 中国矿业大学 | Internal dam body construction method for refuse dump of internal-discharge strip mine |
| CN114086955A (en) * | 2020-08-24 | 2022-02-25 | 神华神东煤炭集团有限责任公司 | Water-retention mining method for shallow coal seam and application thereof |
| CN114233383A (en) * | 2021-12-03 | 2022-03-25 | 国家能源投资集团有限责任公司 | Construction method of water storage system of opencast coal mine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468545A (en) * | 2018-04-19 | 2018-08-31 | 中国矿业大学 | A kind of seasonality adopt-arranges the storage of open coal mine water resource and concocting method |
| CN109057799A (en) * | 2018-07-11 | 2018-12-21 | 中国矿业大学 | It is a kind of the north open coal mine water resource storage and concocting method |
| CN109577980A (en) * | 2018-11-06 | 2019-04-05 | 中国矿业大学 | A kind of underground longwall working face water-protection coal-mining method freezed based on water-bearing layer |
| WO2020093813A1 (en) * | 2018-11-06 | 2020-05-14 | 中国矿业大学 | Frozen aquifer-based method for underground longwall face coal mining under water-containing condition |
| CN109577980B (en) * | 2018-11-06 | 2020-09-04 | 中国矿业大学 | Underground longwall working face water-retaining coal mining method based on aquifer freezing |
| CN109854231B (en) * | 2019-01-16 | 2022-09-16 | 中国矿业大学 | Method for determining radius of multilayer aquifer mixed pumping equivalent well |
| CN109854231A (en) * | 2019-01-16 | 2019-06-07 | 中国矿业大学 | A kind of method of the equivalent well radius of determining multi-layered aquifer mixed pumping water |
| CN110847954A (en) * | 2019-11-15 | 2020-02-28 | 太原理工大学 | Method for re-mining empty coal seam by accumulated water in tool post type residual mining area with top plate being frozen in sections |
| CN110847954B (en) * | 2019-11-15 | 2021-05-28 | 太原理工大学 | Method for re-mining empty coal seam by accumulated water in tool post type residual mining area with top plate being frozen in sections |
| CN111350203A (en) * | 2020-03-06 | 2020-06-30 | 呼伦贝尔东明矿业有限责任公司 | Liquid-stopping freezing device and liquid-stopping freezing method |
| CN114086955A (en) * | 2020-08-24 | 2022-02-25 | 神华神东煤炭集团有限责任公司 | Water-retention mining method for shallow coal seam and application thereof |
| CN113106988B (en) * | 2021-04-14 | 2022-01-25 | 中国矿业大学 | Internal dam body construction method for refuse dump of internal-discharge strip mine |
| CN113106988A (en) * | 2021-04-14 | 2021-07-13 | 中国矿业大学 | Internal dam body construction method for refuse dump of internal-discharge strip mine |
| CN114233383A (en) * | 2021-12-03 | 2022-03-25 | 国家能源投资集团有限责任公司 | Construction method of water storage system of opencast coal mine |
| CN114233383B (en) * | 2021-12-03 | 2023-09-12 | 国家能源投资集团有限责任公司 | Construction method of water storage system of open pit coal mine |
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