CN108049869A - The coal-mining method that long short face is alternately arranged - Google Patents
The coal-mining method that long short face is alternately arranged Download PDFInfo
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- CN108049869A CN108049869A CN201711290874.5A CN201711290874A CN108049869A CN 108049869 A CN108049869 A CN 108049869A CN 201711290874 A CN201711290874 A CN 201711290874A CN 108049869 A CN108049869 A CN 108049869A
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- shortwall
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- 238000005065 mining Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003245 coal Substances 0.000 claims abstract description 33
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- 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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
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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)
- Remote Sensing (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The present invention relates to the coal-mining method that a kind of long short face is alternately arranged, suitable for seam inclination is small, geological conditions is simple, coal seam of the coal seam without spontaneous combustion and burst trend.Mining areas of mine is alternately arranged according to long shortwall, the spoil discharge capacity generated according to the long working face extraction of mine, design the width of shortwall, first carry out the exploitation that farm labourer makees face, the spoil for exploiting generation is all transported in shortwall and is backfilled, shortwall ultimately forms filling area using the mining type filled entirely is adopted entirely.The present invention realizes the not upper well of spoil, solves the problems, such as the environmental nuisance that spoil discharge is brought, has extensive popularizing application prospect.
Description
Technical field
The present invention relates to the coal-mining method that a kind of long short face is alternately arranged, it is particularly suitable for that seam inclination is small, geological conditions
Simply, coal seam is used without the coal seam of spontaneous combustion and burst trend.
Background technology
Rich coal resources in China, coal is always in main body within considerable time, in disposable energy resource structure
Position, coal industry occupy very important status always in China's national economy sustainable development and energy safeguard.But by
In the high tension coal mining of coal resources, a series of ecological environment problems are caused, wherein gangue treatment is exactly one of them.At present
The most air storage of spoil that colliery generates not only pile things on or destroys original place looks vegetation, but also the powder generated in discharge process
The noxious material generated when dirt, spontaneous combustion causes serious harm to the ecological environment of environment for human survival and mining area；Meanwhile cash
Stone is subject to rainfall spray or is chronically at impregnation state, and the dust in spoil can become suspended matter in water, after harmful components dissolving
Into water body, soil, secondary pollution is caused to water environment and soil environment.
Mainly there is the comprehensive utilization of spoil in China：It is generated electricity using spoil, produces building materials, develop the common, association in spoil
Mineral produce fertilizer using gangue, are built the road using gangue, fill out hole, land reclamation etc., but due to the spoil of China's accumulation
Amount is up to 4,000,000,000 tons or more, and the annual spoil for still generating 2~300,000,000 tons, remote super currently processed to utilize horizontal, gangue treatment problem
It is still severe.
In recent years, waste filling technology extensive use in coal mining (under water body, under building, under railway) under three,
Mine spoil can be handled, and surface subsidence can be controlled, is laid a good foundation for the sustainable production of mine.Current filling mining needs
The aggregate wanted is to transport to underground by ground mostly, still lacks a kind of not only working face high winning technology at present but also downhole gangue directly utilizes
Coal-mining method.
The content of the invention
Technical problem：The purpose of the present invention is overcoming the shortcomings of in prior art, a kind of both working face high winning technologies are provided
The long short face that downhole gangue directly utilizes again is alternately arranged coal-mining method.
Technical solution：To realize above-mentioned technical purpose, the coal-mining method that long short face of the invention is alternately arranged, feature exists
It is as follows in step：
A. mining coal seam coal working face is treated under planned well, coal working face is divided into long working face and shortwall, farm labourer
Make face and shortwall is alternately arranged, transportation roadway is provided between long working face and shortwall；
B. long working face and shortwall parameter are determined：Long working face is identical with shortwall length, by mine field with "nine squares" model
Decision is enclosed, the width of long working face is determined by mine design annual output, and the width of shortwall is true by mine spoil amount M
Fixed, the mining height of long working face and shortwall is determined by coal seam height, is first carried out farm labourer and is made face exploitation, rear to carry out casual labourer's work
It exploits in face；
C. long working face and shortwall parameter after basis determines, first carry out high-efficiency mining, long work to long working face
The gangue utilization transportation roadway generated in the exploitation of face is all transported at the shortwall of design, recycles what long working face mining generated
Spoil carries out shortwall filling mining, and shortwall uses the mining type adopted and filled entirely entirely, long working face and shortwall
The direction promoted is exploited on the contrary, shortwall is adopted entirely fills entirely so as to form fill area, a Tiao Liu lanes are disposed on the outside of fill area
As the transportation roadway of next coal working face, goaf is formed after long working face mining, goaf is with long working face mining
Complete top plate spontaneous caving；
D. step c is repeated, so as to complete the exploitation in entire coal seam.
The mine spoil amount M is the spoil amount that long working face (2) exploitation filters out, true by formula M=L*W* (H1-H2)
Fixed, in formula, L is long face length, and W is long face width, and H1 is long working face mining height, and H2 is coal seam height, H1>
H2.The long face width is more than 150m, and specific width W utilizes formula：W=Q/ (N*L1*H2) is obtained, and in formula, Q is ore deposit
Well designed annual production capacity, N are the long working face quantity of mine, and L1 is the annual output of single long working face.The shortwall width
Less than 50m, specific width W ' utilizes formula：W '=k*M/ (L ' * H1) is obtained, and in formula, W ' is shortwall width, and k is broken swollen
Coefficient, L ' are the length of shortwall, and M is mine spoil amount.Described lane (6) width that stays is 4~6m.Advantageous effect：Due to
Above-mentioned technical proposal is employed, the present invention has the following advantages that compared with prior art：
(1) spoil that long working face extraction generates all is transported to shortwall filling mining, can fundamentally solve
The problem of spoil discharges.
(2) shortwall filling mining does not influence the high winning technology of long working face, solve current filling mining technology and
The low yield for bringing mine is poorly efficient.
(3) a Tiao Liu lanes are provided for next long working face in filling area simultaneously after shortwall filling mining, reduced
The cost of coal mining.
Description of the drawings
Fig. 1 is the coal-mining method that the long short face of the present invention is alternately arranged.
In figure：1- coal bodies；2- long working faces；3- shortwalls；4- transportation roadways；5- goafs；6- stays lane；7- filling areas.
Specific embodiment
One embodiment of the present of invention is further described below in conjunction with the accompanying drawings：
As described in Figure 1, the coal-mining method that long short face of the invention is alternately arranged, its step are as follows：
A. 1 coal working face of mining coal seam is treated under planned well, coal working face is divided into long working face 2 and shortwall 3, it is long
Working face 2 and shortwall 3 are alternately arranged, and transportation roadway 4 is provided between long working face 2 and shortwall 3；
B. 3 parameter of long working face 2 and shortwall is determined：Long working face 2 is identical with 3 length of shortwall, by mine well
Field scope determines that the width of long working face 2 is determined by mine design annual output, and 2 width of long working face is more than 150m,
Specific width W utilizes formula：W=Q/ (N*L1*H2) is obtained, and in formula, Q is mine design annual output, and N is the long working face number of mine
Amount, L1 are the annual output of single long working face, and H1 is the mining height of long working face 2, and the width of shortwall 2 passes through mine cash
Stone amount M determines that 3 width of shortwall is less than 50m, and specific width W ' utilizes formula：W '=k*M/ (L ' * H1) is obtained,
In formula, W ' be shortwall width, k be broken swollen coefficient, L ' be shortwall 3 length, M be mine spoil amount, the ore deposit
Well spoil amount M is the spoil amount that the exploitation of long working face 2 filters out, and is determined by formula M=L*W* (H1-H2), and in formula, L is long work
Face length, W be long face width, H1 be long working face mining height, H2 be coal seam height, wherein H1>H2, long working face 2
It is determined with the mining height of shortwall 3 by coal seam height, first carries out farm labourer and make face exploitation, it is rear to carry out shortwall exploitation；
C. 3 parameter of long working face 2 and shortwall after basis determines first carries out high-efficiency mining, farm labourer to long working face 2
The gangue utilization transportation roadway 4 for making to generate during face 2 is exploited all is transported at the shortwall 3 of design, and long working face 2 is recycled to exploit
The spoil of middle generation carries out shortwall 3 filling mining, and shortwall 3 uses the mining type adopted and filled entirely entirely, long working face 2
The direction promoted with the exploitation of shortwall 3 is on the contrary, complete adopt of shortwall 3 fills to form fill area 7 entirely, in 7 outside of fill area
Transportation roadway 4 of the Tiao Liu lanes 6 as next coal working face is disposed with, described stays 6 width of lane as 4~6m, long working face 2
Goaf 5 is formed after exploitation, top plate spontaneous caving has been exploited in goaf 5 with long working face 2；
D. step c is repeated, so as to complete the exploitation in entire coal seam.
Claims (5)
1. the coal-mining method that a kind of long short face is alternately arranged, it is characterised in that step is as follows：
A. mining coal seam is treated under planned well（1）Coal working face is divided into long working face by coal working face（2）And shortwall（3）,
Long working face（2）And shortwall（3）It is alternately arranged, long working face（2）And shortwall（3）Between be provided with transportation roadway（4）；
B. long working face is determined（2）And shortwall（3）Parameter：Long working face（2）And shortwall（3）Length is identical, by ore deposit
The scope decision of well field with "nine squares", long working face（2）Width determined by mine design annual output, shortwall（2）Width pass through
Mine spoil amount M determines, long working face（2）And shortwall（3）Mining height determined by coal seam height, first carry out farm labourer's work
Face is exploited, rear to carry out shortwall exploitation；
C. the long working face after basis determines（2）And shortwall（3）Parameter, first to long working face（2）High-efficiency mining is carried out, it is long
Working face（2）The gangue utilization transportation roadway generated in exploitation（4）All transport to the shortwall of design（3）Place recycles farm labourer
Make face（2）The spoil generated in exploitation is to shortwall（3）Carry out filling mining, shortwall（3）Using adopting opening of filling entirely entirely
Adopt mode, long working face（2）And shortwall（3）The direction promoted is exploited on the contrary, shortwall（3）Complete adopt fills to be formed entirely
Fill area（7）, in fill area（7）Outside is disposed with a Tiao Liu lanes（6）Transportation roadway as next coal working face（4）, it is long
Working face（2）Goaf is formed after exploitation（5）, goaf（5）With long working face（2）Top plate spontaneous caving is exploited；
D. step c is repeated, so as to complete the exploitation in entire coal seam.
2. the coal-mining method that long short face according to claim 1 is alternately arranged, it is characterized in that：The mine spoil amount M
For long working face（2）The spoil amount that filters out is exploited, is determined by formula M=L*W* (H1-H2), in formula, L is long face length, W
For long face width, H1 is long working face mining height, and H2 is coal seam height, H1>H2.
3. the coal-mining method that long short face according to claim 1 is alternately arranged, it is characterized in that：The long face width
More than 150m, specific width W utilizes formula：W=Q/ (N*L1*H2) is obtained, and in formula, Q is mine design annual output, and N is long for mine
Working face quantity, L1 are the annual output of single long working face.
4. the coal-mining method that long short face according to claim 1 or 2 is alternately arranged, it is characterized in that：The shortwall
（3）Width is less than 50m, and specific width W ' utilizes formula：W’=k* M/ (L ' * H1) is obtained, and in formula, W ' is shortwall width,k
For broken swollen coefficient, L ' is the length of shortwall, and M is mine spoil amount.
5. the coal-mining method that long short face according to claim 1 is alternately arranged, it is characterized in that：Described stays lane（6）Width
For 4 ~ 6m.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290874.5A CN108049869A (en) | 2017-12-08 | 2017-12-08 | The coal-mining method that long short face is alternately arranged |
| PCT/CN2018/087976 WO2019109601A1 (en) | 2017-12-08 | 2018-05-23 | Coal mining method applying alternately arranged long and short faces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290874.5A CN108049869A (en) | 2017-12-08 | 2017-12-08 | The coal-mining method that long short face is alternately arranged |
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| CN108049869A true CN108049869A (en) | 2018-05-18 |
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| CN201711290874.5A Pending CN108049869A (en) | 2017-12-08 | 2017-12-08 | The coal-mining method that long short face is alternately arranged |
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| WO (1) | WO2019109601A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109601A1 (en) * | 2017-12-08 | 2019-06-13 | 中国矿业大学 | Coal mining method applying alternately arranged long and short faces |
| CN110454187A (en) * | 2019-07-04 | 2019-11-15 | 内蒙古科技大学 | A kind of roadway layout method improving the Coal Resources in Mine recovery ratio that is opened up by adits |
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2017
- 2017-12-08 CN CN201711290874.5A patent/CN108049869A/en active Pending
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2018
- 2018-05-23 WO PCT/CN2018/087976 patent/WO2019109601A1/en active Application Filing
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| CN1936271A (en) * | 2006-08-21 | 2007-03-28 | 山东盛泉矿业有限公司 | Method for filling coal-steam-free extraction working surface goaf by coal mine waste rock |
| CN103410515A (en) * | 2013-08-23 | 2013-11-27 | 山东科技大学 | Three-soft-coal-layer reciprocating-type coal-pillar-free fully-mechanized mining method |
| CN103470261A (en) * | 2013-09-30 | 2013-12-25 | 山东科技大学 | Method for roadway driving along goaf under original roadway top plate of fully mechanized top coal caving goaf |
| CN103953345A (en) * | 2014-05-13 | 2014-07-30 | 中国矿业大学 | Exploitation method of gob-side entry retaining with small section |
| CN104791006A (en) * | 2014-12-05 | 2015-07-22 | 新汶矿业集团有限责任公司 | Filling technology for carrying out refilling on goaf |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109601A1 (en) * | 2017-12-08 | 2019-06-13 | 中国矿业大学 | Coal mining method applying alternately arranged long and short faces |
| CN110454187A (en) * | 2019-07-04 | 2019-11-15 | 内蒙古科技大学 | A kind of roadway layout method improving the Coal Resources in Mine recovery ratio that is opened up by adits |
| CN110454187B (en) * | 2019-07-04 | 2021-08-24 | 内蒙古科技大学 | Roadway arrangement method for improving coal resource extraction rate of footrill exploitation mine |
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| WO2019109601A1 (en) | 2019-06-13 |
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Application publication date: 20180518 |
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