CN108505999A - A kind of high prominent more lane method for arranging of working face of coal seam - Google Patents
A kind of high prominent more lane method for arranging of working face of coal seam Download PDFInfo
- Publication number
- CN108505999A CN108505999A CN201810233143.5A CN201810233143A CN108505999A CN 108505999 A CN108505999 A CN 108505999A CN 201810233143 A CN201810233143 A CN 201810233143A CN 108505999 A CN108505999 A CN 108505999A
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- China
- Prior art keywords
- tailgate
- coal
- working face
- lane
- driving
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- 239000003245 coal Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 230000002265 prevention Effects 0.000 claims abstract description 8
- 239000011435 rock Substances 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 3
- 238000000605 extraction Methods 0.000 claims description 17
- 238000005086 pumping Methods 0.000 claims description 12
- 238000010200 validation analysis Methods 0.000 claims description 7
- 230000008033 biological extinction Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000000750 progressive effect Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000005641 tunneling 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- 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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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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)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
A kind of high prominent more lane method for arranging of working face of coal seam do not stay coal column to tunnel upper tailgate completely along the mined out area edge of upper curtate, and tailgate stays the coal column for setting 2 5m to excavate lower tailgate on interval, and two lanes are formed through mine total head by open-off cut and divulge information.Lane and this section haulage way among this section are excavated again, is penetrated through by open-off cut and intermediate lane, tailgate, are formed working face and are carried out back production；It repeats the above steps until completing the exploitation in all section coal seams.Advantage is：Reduce rock tunnel engineering amount in outburst prevention measures, improve coal resources recovery ratio, realize " two into two times " or " three into one times " draft type, greatly improve gas at upper corner overrun issues, it is ensured that high methane and the safety in production of projecting coal bed working face.
Description
Technical field
The present invention relates to coal mine diggings and gas pumping field.It is especially adapted for use in high methane and projecting coal bed exploitation
A kind of high prominent more lane method for arranging of working face of coal seam.
Background technology
The most of mines in China are high methane or projecting mine, with mining level deepening, coal-bed gas pressure and content
It is stepped up, seriously threatens the safety in production of working face.
《Prevent coal and gas prominent regulation》Regulation：" not digging prominent head, do not adopt raised face ".In digging production process（With
For containing remote coal mine）, driving face is before implementation, it is necessary to floor rock gas drainage under suction lane is utilized, to two side slat of digging laneway
Band is taken out in advance, and ability digging laneway after outburst hazard to be canceled, of high cost since outburst prevention measures quantities is big, the time is long,
Lead to return air, haulage way driving delay, and then influences working face and normally go into operation.
After coal working face is formed, traditional U-shaped draft type can only be used, gas at upper corner outburst amount is caused often to surpass
Mark threatens working face safety, it is necessary to readopt gas and take out, discharges and change air quantity measure, reduce gas density, constrain work
Make face normally to produce, greatly reduces the economic benefit of mine.In addition the coal column for having set 15-20m is stayed when face take-over, is caused
Section coal pillar loss is big, results in waste of resources.
Invention content
Technical problem：The purpose of the present invention is overcoming the shortcoming in prior art, propose to reduce rock in outburst prevention measures
Lane quantities, improves coal resources recovery ratio, realizes " two into two times " or " three into one times " draft type, it is ensured that high methane and
A kind of high prominent more lane method for arranging of working face of coal seam of projecting coal bed working face safety in production.Technical solution：The present invention's is a kind of high
The more lane method for arranging of prominent working face of coal seam, include the following steps：
A. upper curtate working face extraction terminates, after goaf overlying rock is basicly stable, along goaf edge completely not
The upper tailgate of coal column driving is stayed, after upper tailgate excavates, tailgate stays the coal column for setting 2m-5m to tunnel next time on interval
Wind gallery, two lanes are formed through mine total head by open-off cut and divulge information.
B. it descends in tailgate along moving towards arrangement parallel concordant drilling with extraction pipeline unicom to lower part certain area coal
Layer carries out gas pumping.
C. it is taken out in advance through coal seam, after eliminating outburst danger, cuts eye from lower return air heading extension, then centre is excavated by cutting eye
Lane, intermediate lane constitute mine total head with tailgate after the completion of tunneling and divulge information.
D. along moving towards, the parallel concordant of arrangement drills and extraction pipeline unicom is to lower part certain area coal seam in intermediate lane
Carry out gas pumping.
E. it is taken out in advance through coal seam, after eliminating outburst danger, driving, which extends, cuts eye, then excavates haulage way by cutting eye, by centre
Lane, haulage way as air inlet, upper tailgate and lower tailgate as air return lane, constitute " two into two times " or " three into
One time " draft type formation working face progress back production.
F. it repeats the above steps and excavates new working face and carry out back production, be carried out at the same time new section gas pumping, until complete
At the exploitation in coal seam.Its feature 1 does not stay coal column to tunnel upper tailgate completely along the mined out area edge of upper curtate, and return air is flat on interval
Lane stays the coal column for setting 2m-5m to excavate lower tailgate, and upper and lower tailgate is arranged within the scope of release extinction, is equivalent in nothing
Outburst dangerous area is tunneled, and often promotes 10~15m at least to carry out area validation twice during driving, without taking outburst prevention measures.
Feature 2 is that by digging upper and lower tailgate along sky, it is logical to constitute mine total head in conjunction with intermediate lane and haulage way
Wind realizes " two into two times " or " three into one times " draft type, and gas at upper corner transfinites during efficiently solving working face extraction
Problem realizes the safe and efficient production of working face.
Advantageous effects：1, coal column is not stayed or 2-5m coal columns is stayed to tunnel double lanes technology along goaf, by upper and lower return air
Gallery is arranged within the scope of release extinction, is equivalent to and is tunneled in no outburst dangerous area, only need to be carried out area validation during driving, is not required to
Outburst prevention measures are taken, reduces rock tunnel engineering amount in outburst prevention measures, reduces production cost.2, " two are formed in working face extraction
Into two times " or " three into one times " draft type, greatly improve face upper corner angle gas exceeding limit problem, it is ensured that working face is pacified
Full production.
Description of the drawings
Fig. 1 is a kind of gas pumping schematic diagram of the high prominent more lane method for arranging of working face of coal seam of the present invention.
Fig. 2 is a kind of working face extraction schematic diagram of the high prominent more lane method for arranging of working face of coal seam of the present invention.
In Fig. 1, Fig. 2：The goafs 1-, 2- coal columns, the upper tailgates of 3-, tailgate under 4-；Lane among 5-, 6- transports are flat
Lane, 7- open-off cuts, the drilling of 8,9- concordants.
Specific implementation mode
As shown in Figure 1 and Figure 2, a kind of high prominent more lane method for arranging of working face of coal seam of the invention, include the following steps：
A. upper curtate working face extraction terminates, and works as goaf（1）After overlying rock is basicly stable, along goaf（1）Edge
The upper tailgate of coal column driving is not stayed completely（3）, wait for tailgate（3）After excavating, tailgate on interval（3）It stays and sets 2m-
The coal column of 5m（2）The lower tailgate of driving（4）, two lanes pass through open-off cut（7）Mine total head is formed through to divulge information, it is every during driving
10~15m is promoted at least to carry out area validation twice.
B. tailgate is descended（4）In drill along moving towards the parallel concordant of arrangement（8）It is certain to lower part with extraction pipeline unicom
Regional coal-seam carries out gas pumping.Wherein, concordant drills（12）Sealed borehole length be 8m-10m, concordant drilling（12）Between array pitch be
2m~4m, concordant drilling（12）A diameter of 75mm~110mm, concordant drilling（12）Length be 60m~90m.
C. taken out in advance through coal seam, eliminate outburst danger after, i.e., when the remaining gas pressure in extraction coal seam drop to 0.75MPa with
Lower and gas remainder quantity is down to 8m3When/t or less, from lower tailgate（4）Driving, which extends, cuts eye（7）, then by cutting eye（7）Pick
Go out intermediate lane（5）, intermediate lane（5）The ventilation of mine total head is constituted after the completion of driving with tailgate, often promote 10 during driving~
15m at least carries out area validation twice.
D. in intermediate lane（5）In drill along moving towards the parallel concordant of arrangement（9）With extraction pipeline unicom to the certain area in lower part
Domain coal seam carries out gas pumping.Wherein, concordant drills（12）Sealed borehole length be 8m-10m, concordant drilling（12）Between array pitch be 2m
~4m, concordant drilling（12）A diameter of 75mm~110mm, concordant drilling（12）Length be 60m~90m.
E. it is taken out in advance through coal seam, after eliminating outburst danger, i.e., when the remaining gas pressure in extraction coal seam drops to 0.75MPa or less
It is down to 8m with gas remainder quantity3When/t or less, driving, which extends, cuts eye（7）, then by cutting eye（7）Excavate haulage way（6）, driving
Period often promotes 10~15m at least to carry out area validation twice, finally by intermediate lane（5）, haulage way（6）As air inlet,
Upper tailgate (3) and lower tailgate（4）As air return lane, constitutes " two into two times " or " three into one times " draft type and formed
Working face carries out back production.
F. it repeats the above steps and excavates new working face and carry out back production, be carried out at the same time new section gas pumping, until complete
At the exploitation in coal seam.Its feature 1 does not stay coal column to tunnel upper tailgate completely along the mined out area edge of upper curtate, and return air is flat on interval
Lane stays the coal column for setting 2m-5m to excavate lower tailgate, and upper and lower tailgate is arranged within the scope of release extinction, is equivalent in nothing
Outburst dangerous area is tunneled, and often promotes 10~15m at least to carry out area validation twice during driving, without taking outburst prevention measures.
Feature 2 is that by digging upper and lower tailgate along sky, it is logical to constitute mine total head in conjunction with intermediate lane and haulage way
Wind realizes " two into two times " or " three into one times " draft type, and gas at upper corner transfinites during efficiently solving working face extraction
Problem realizes the safe and efficient production of working face.
Claims (4)
1. a kind of high prominent more lane method for arranging of working face of coal seam, it is characterised in that：The tunnelling and gas pumping method packet
Include following steps：
A. upper curtate working face extraction terminates, and works as goaf（1）After overlying rock is basicly stable, along goaf（1）Edge
It does not stay the upper tailgate of coal column driving completely, waits for tailgate（3）After excavating, tailgate on interval（3）It stays and sets 2m-5m's
Coal column（2）The lower tailgate of driving（4）, two lanes pass through open-off cut（7）It is formed through the ventilation of mine total head.
B. tailgate is descended（4）In drill along moving towards the parallel concordant of arrangement（8）With extraction pipeline unicom to lower part certain area
Coal seam carries out gas pumping.
C. it is taken out in advance through coal seam, after eliminating outburst danger, from lower tailgate（4）Driving, which extends, cuts eye（7）, then by cutting eye（7）Pick
Go out intermediate lane（5）, intermediate lane（5）The ventilation of mine total head is constituted after the completion of driving with tailgate.
D. in intermediate lane（5）In drill along moving towards the parallel concordant of arrangement（9）With extraction pipeline unicom to lower part certain area coal
Layer carries out gas pumping.
E. it is taken out in advance through coal seam, after eliminating outburst danger, driving, which extends, cuts eye（7）, then by cutting eye（7）Excavate haulage way（6）, by
Intermediate lane（5）, haulage way（6）As air inlet, upper tailgate (3) and lower tailgate（4）As air return lane, constitute
" two into two times " or " three into one times " draft type forms working face and carries out back production.
F. it repeats the above steps and excavates new working face and carry out back production, be carried out at the same time new section gas pumping, until completing coal
The exploitation of layer.
2. a kind of progressive extinction roadway layout method of tendency according to claim 1, feature 1 is along upper curtate goaf side
Edge does not stay coal column to tunnel upper tailgate completely, and tailgate stays the coal column for setting 2m-5m to excavate lower tailgate on interval, will
Within the scope of upper and lower tailgate arrangement release extinction, it is equivalent to and is tunneled in no outburst dangerous area, often promote 10 during driving~
15m at least carries out area validation twice, without taking outburst prevention measures.
3. feature 2 constitutes working face extraction using lower tailgate, intermediate lane and haulage way, recyclable coal column between section carries
High coal recovery rate.
4. feature 3 is by digging upper and lower tailgate along sky, the ventilation of mine total head is constituted in conjunction with intermediate lane and haulage way,
Realize " two into two times " or " three into one times " draft type, gas at upper corner, which transfinites, during efficiently solving working face extraction asks
Topic realizes the safe and efficient production of working face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233143.5A CN108505999A (en) | 2018-03-21 | 2018-03-21 | A kind of high prominent more lane method for arranging of working face of coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233143.5A CN108505999A (en) | 2018-03-21 | 2018-03-21 | A kind of high prominent more lane method for arranging of working face of coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108505999A true CN108505999A (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810233143.5A Pending CN108505999A (en) | 2018-03-21 | 2018-03-21 | A kind of high prominent more lane method for arranging of working face of coal seam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397463A (en) * | 2019-07-22 | 2019-11-01 | 中国矿业大学(北京) | Longwall mining section faces the method for ventilation of the preset pipeline in mined out side |
| CN110886611A (en) * | 2019-12-06 | 2020-03-17 | 河南力行科创矿山技术开发有限公司 | Gob-side entry driving process for high-gas large-mining-height working face |
| CN111622773A (en) * | 2020-06-10 | 2020-09-04 | 中国矿业大学 | High-gas working face roadway structure, arrangement method and coal pillar width determination method thereof |
| CN112963146A (en) * | 2021-02-05 | 2021-06-15 | 北京科技大学 | Joint-cutting carbon dioxide fracturing device and rock mass directional blasting method |
-
2018
- 2018-03-21 CN CN201810233143.5A patent/CN108505999A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397463A (en) * | 2019-07-22 | 2019-11-01 | 中国矿业大学(北京) | Longwall mining section faces the method for ventilation of the preset pipeline in mined out side |
| CN110886611A (en) * | 2019-12-06 | 2020-03-17 | 河南力行科创矿山技术开发有限公司 | Gob-side entry driving process for high-gas large-mining-height working face |
| CN110886611B (en) * | 2019-12-06 | 2020-12-25 | 河南力行科创矿山技术开发有限公司 | Gob-side entry driving process for high-gas large-mining-height working face |
| CN111622773A (en) * | 2020-06-10 | 2020-09-04 | 中国矿业大学 | High-gas working face roadway structure, arrangement method and coal pillar width determination method thereof |
| CN112963146A (en) * | 2021-02-05 | 2021-06-15 | 北京科技大学 | Joint-cutting carbon dioxide fracturing device and rock mass directional blasting method |
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| PB01 | Publication | ||
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Application publication date: 20180907 |