CN105221179B - A kind of highly gassy mine Y type method of ventilations - Google Patents
A kind of highly gassy mine Y type method of ventilations Download PDFInfo
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- CN105221179B CN105221179B CN201510694777.7A CN201510694777A CN105221179B CN 105221179 B CN105221179 B CN 105221179B CN 201510694777 A CN201510694777 A CN 201510694777A CN 105221179 B CN105221179 B CN 105221179B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000009423 ventilation Methods 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 claims abstract description 36
- 238000000605 extraction Methods 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000010009 beating Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005065 mining Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/18—Gravity flow ventilation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
A kind of highly gassy mine Y type method of ventilations are that before crossheading driving, the orientation Di Chou lane corresponding with working face track crossheading and open-off cut is tunneled in seat earth rock stratum, and set in lane gas drainage pipe；In driving track crossheading in working seam and open-off cut formation ventilating system directly over Di Chou lanes, dug in track crossheading end along bearing coal road, return air inclined gallery are tunneled downwards along seam inclination in coal road end, connection Di Chou lanes behind the same layer position of Di Chou lanes are reached, then fire dam are beaten in Di Chou lanes in communicating position；Road-in packing is constructed during working face extraction afterwards to retain track lane and set gas drainage pipeline goaf gas drainage.This method solves the problems, such as the methane accumulation of work face upper corner angle and the Gas Outburst in driving, and security is good；One lane is used, and cost of winning is low；Working face only empty lane, technique is simple.
Description
Technical field
The present invention relates to a kind of method of ventilation in highly gassy mine tunnel, particularly existing airway is improved
Highly gassy mine Y type method of ventilations.
Background technology
It is reasonable development coal resources without coal pillar mining, improves roadway maintenance, reduces tunnelling amount, be conducive to mine to pacify
One advanced coal mining technique of full production and improvement mine technology economic effect.Carry out without coal pillar mining, not only to life
Production mine undergoes technological transformation, relaxes the relationn of excavation and recovering and extends mine life and has realistic meaning, and is also to make coal enterprise
Improve one of safety condition and technical-economic index, the important channel that volume increase, net income increase are detracted.It is used as a kind of non chain pillar entryprotection skill
Art, gob side entry retaining is reasonably to develop existing coal resources, a kind of effective way of raising coal resources recovery ratio.At present along sky
Lane tunnelling is stayed to stay lane method numerous with the later stage, but many methods have some shortcomings part, it is difficult to be applied to high methane
Projecting mine.
Disclosed in the A of Publication No. CN 102392642 " a kind of method for arranging roadways on coal-pillar-free stope ", often
Individual working face arranges two tunnels, and one is new pick tunnel, another gob side entry retaining or pick lane for upper working face, this working face
Before back production, its adjacent tunnel for taking over working face and cut eye and excavate in advance, the Xin Jue lanes for cutting eye and this working face are connected, along sky
The new pick tunnel of working face is taken over when staying lane and eye is cut as the border return airway of this working face, stope drift active workings formation Y type ventilations
System, can effectively solve the problems, such as face upper corner angle gas.But, this method return air circuit is long, and flowing resistance is big, and should
Method does not have gas drainage under suction measure in tunnelling, Gas Outburst danger can not be eliminated in stope drift active workings driving, especially
When mine is high gas and outburst mine, potential safety hazard is big, and this method can not be applicable.
Disclosed in Publication No. CN104763434A " a kind of without the double lane driving methods of coal column ", in air return way and tail lane
Between do not stay coal column, as the wide lane tunnelling in a tunnel, divider wall is built afterwards and is broken it into two, tail lane is used as the work
The auxiliary return airway in face.Back production Hou Jiangwei lanes leave, and are that subsequent work face is used.Tunnelling is stayed lane to unite by this method with the later stage
Consideration is raised, is a kind of very good without pillar mining method, can effectively solve the problems, such as tunneling ventilation gas.But, the party
Method can not form the ventilation of Y types, and divider wall, which is constructed, needs interval to leave a blank, and service channel, which will undergo to close twice, once to be opened, technique
Cumbersome, the application limitation in highly gassy mine is very big.
At present Yang Mei groups ore deposit it is ongoing it is a kind of stay the double lanes driving gob side entry retainings of coal column without coal pillar mining side
In method, in tunnelling, first prearranged pillar driving track lane and return airway tunnel therebetween connection roadway, in this working face
During back production, track lane is left, headentry air intake together with track lane, track Xiang Liu lanes and return airway return air form Y
Type ventilating system；In next working face extraction, coal column in the lump back production is now gone up working face return air by Coal Face Passing Through return airway
Lane air intake together with transportation roadway and track lane as auxiliary air inlet lane, track Xiang Liu lanes and return airway return air, form three and enter one time
Ventilating system.Such a method can effectively solve the problems, such as tunnelling ventilation and face upper corner angle gas, and need not set
Special air -return duct is put, still, working face extraction will be fully urged length Shang Guokong lanes, this just gives the safe and efficient production band of working face
To influence.
Therefore, tunnelling gas can effectively be solved the problems, such as by seeking one kind, and technique is simple, can be with good conformity high methane coal mine
Well without pillar mining method, be improve an urgent demand without coal pillar mining production technology and coal industry harmonious development.
The content of the invention
Based on above prior art, the invention solves the problems that particular problem be in without coal pillar mining technology, how effectively
Solve the problems, such as the gas in highly gassy mine tunnelling, working face extraction only empty lane makes full use of each tunnel realization
The lane of tunnel one is used, and then proposes a kind of highly gassy mine Y type method of ventilations.
A kind of highly gassy mine Y type method of ventilations set forth above are achieved through the following technical solutions.
Before this return airway driving, first cause plate destructing depth to tunnel bottom in seat earth rock stratum depending on exploitation and take out
Lane, Di Chou lanes position is corresponding with this working face track crossheading.Gas drainage pipeline is arranged in lane.Upwards toward coal out of Di Chou lanes
Firedamp taking-out discharging drilling is beaten in layer, Gas pre-drainage is the driving elimination Gas Outburst danger of crossheading and open-off cut.
Directly over Di Chou lanes, in driving track crossheading and open-off cut in working seam.Open-off cut is formed through ventage
After system, in track crossheading end, the coal road along bearing direction is dug, the coal road can be used as the one of subsequent work face open-off cut
Part, is inclined to driving return air inclined gallery diagonally downward, after arrival and Di Chou lanes same layer position, edge is vertical with Di Chou lanes along coal seam afterwards
Direction driving is connected with Di Chou lanes, and then beating Di Chou lane of the fire dam by after in communicating position blocks.
During this working face carries out back production, construct road-in packing at working face rear and retain track lane
Come, arrangement gas drainage pipeline by obturation, extraction, extraction pipeline and gas drainage under suction in Di Chou lanes are carried out to gas in goaf
Pipeline is connected.Face-airing system is：Track crossheading and haulage gate air intake, Liu Xiang is with Di Chou lanes through return air inclined gallery and crossdrift
Connection is used as return airway return air.
Finished in this working face extraction, lower working face starts before back production, and the spoil tunneled using underground is filled return air inclined gallery
Packing is real.The like, until whole exploiting field back production is complete.
A kind of technical scheme of above-mentioned the provided highly gassy mine Y type method of ventilations of the present invention, compared with prior art,
Have the advantage that as follows.
One is that this method sets bottom plate extraction lane to gas pre-drainage in coal seam, eliminates watt during crossheading is tunneled with open-off cut
This outburst danger, security is good.
Two be that this method sets Di Chou lanes to eliminate coal roadway tunneling outburst danger as gas drainage under suction lane before crossheading driving；
Return airway return air is used as during working face extraction；Extraction can be carried out to the gas in goaf again at working face rear, it is real
Xian Liao mono- is used in lane three.Track crossheading is remained to be continuing with for next working face, realizes a lane dual-purpose.Economic benefit is bright
It is aobvious.
Three be that this method sets and forms the ventilation of Y types, solves the problems, such as face upper corner angle methane accumulation.
Four be this method not used empty lane in exploitation process, and technique is simple.
Brief description of the drawings
Fig. 1 is roadway layout graph of a relation of the present invention.
In figure：1-track crossheading；2-Di Chou lanes；3-stay lane；4-windstone gate；5-return air inclined gallery；6-divider wall；
7-working face；The lower working face open-off cut in 8-part；9-fire dam.
Embodiment
The embodiment of the present invention is made further instructions with embodiment below in conjunction with the accompanying drawings.
1st, first apart from seat earth certain depth driving Di Chou lanes 2, Liang Dichou lanes are located at designed path crossheading position
Underface.Di Chou lanes digging depth should be greater than exploiting caused plate destructing depth, wherein, plate destructing depth is according to field with "nine squares"
Depending on the condition such as matter condition and seam mining thickness, following formula calculating specifically can refer to：
In formula：H-bottom plate maximal destruction depth, m；
K-the factor of stress concentration；
H-adopt depth, m；
- floor strata inner membrance wipes angle, radian；
The average severe of γ-overlying rock, N/m3；
σt- Rock Under Uniaxial Compression tensile strength, MPa；
Lx- face length, m；
r0'-stope end plastic zone scope, m.
Firedamp taking-out discharging drilling is arranged in Di Chou lanes.Di Chou lanes driving arrive predetermined location of starting cut after along bearing driving with
Upper working face Di Chou lanes insertion.
2nd, after the driving of Di Chou lanes 2 is completed, haulage gate 5 and track are being tunneled directly over Liang Tiaodichou lanes in coal seam respectively
Crossheading 1, reaches after open-off cut precalculated position, tunnel this working face open-off cut and coal road 8, the length in tunnel 8 should make return air oblique
Rib branch bearing capacity areas of elevated is avoided in lane 5, and specific length can refer to coal pillar width when coal pillar mining is stayed in colliery.8 can do part
Lower working face open-off cut eye.
3rd, from coal road 8 along with bearing downward driving return air inclined gallery 5 inclined vertically, tunnel inclination angle is generally no greater than
30 °, specific size considers convenient construction and economical rationality.
4th, tunnel 5 is tunneled to the place layer position of Di Chou lanes 2, is taken out along with the vertical direction of Di Chou lanes 2 driving windstone gate 4 bottom of with
Lane is connected.
5th, it is in windstone gate and Di Chou lanes junction structure wall 9 that Di Chou lanes is closed.
6th, after working face starts back production, construct divider wall 6 at working face rear and remain track crossheading 5 under
Working face haulage gate.
7th, face-airing system is that the air intake of haulage gate 5 converges with the air intake of track crossheading 1 afterwards by working face 7, weary
Wind, which is sequentially passed through, stays lane 3, coal road 8, return air inclined gallery 5, and windstone gate 4 enters Di Chou lanes return air.
8th, this working face extraction is finished, before next working face extraction, the spoil produced is tunneled with underground return air is oblique
Fill closely knit in lane 5.
9th, back production successively in this way, until the coal in whole exploiting field is all just gone out.
10th, air pipeline exhaust ventilation is utilized during the driving of Di Chou lanes；Local fan ventilation is arranged during other tunnellings.
Claims (1)
1. a kind of highly gassy mine Y type method of ventilations, methods described is before return airway driving, first to cause bottom plate depending on exploitation
Collapse dept tunnels Di Chou lanes in seat earth rock stratum, and Di Chou lanes position is corresponding with this working face track crossheading；Cloth in lane
Put gas drainage pipeline；Upwards toward beating firedamp taking-out discharging drilling in coal seam out of Di Chou lanes, Gas pre-drainage is crossheading and open-off cut
It is dangerous that driving eliminates Gas Outburst；
Directly over Di Chou lanes, in driving track crossheading and open-off cut in working seam；Open-off cut is formed through after ventilating system,
In track crossheading end, dig the coal road along bearing direction, the coal road as subsequent work face open-off cut a part,
Driving return air inclined gallery diagonally downward are inclined to along coal seam afterwards, after arrival and Di Chou lanes same layer position, edge and Di Chou lanes vertical direction
Driving is connected with Di Chou lanes, and then beating Di Chou lane of the fire dam by after in communicating position blocks；
In working face carries out exploitation process, road-in packing is constructed at working face rear and retains setting by track lane, obturation
Gas drainage pipeline, extraction is carried out to gas in goaf, and extraction pipeline is connected with gas drainage pipe in Di Chou lanes；Working face leads to
Wind system is：Track crossheading and haulage gate air intake, Liu Xiang are connected as return airway return air with Di Chou lanes through crossdrift；
Finished in this working face extraction, lower working face starts before back production, the spoil tunneled using underground fills return air inclined gallery close
It is real；The like, until whole exploiting field back production is complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510694777.7A CN105221179B (en) | 2015-10-21 | 2015-10-21 | A kind of highly gassy mine Y type method of ventilations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510694777.7A CN105221179B (en) | 2015-10-21 | 2015-10-21 | A kind of highly gassy mine Y type method of ventilations |
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| Publication Number | Publication Date |
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| CN105221179A CN105221179A (en) | 2016-01-06 |
| CN105221179B true CN105221179B (en) | 2017-10-31 |
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| CN111197493A (en) * | 2018-11-16 | 2020-05-26 | 大同煤矿集团有限责任公司 | Construction process of underground temporary return air channel |
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| CN111594250A (en) * | 2020-05-22 | 2020-08-28 | 淮南矿业（集团）有限责任公司顾桥煤矿 | Ventilation method of roadway arrangement system for solving multiple disasters of deep well working face |
| CN112127933A (en) * | 2020-08-28 | 2020-12-25 | 晋城蓝焰煤业股份有限公司 | Method for adjusting long-distance tunneling working face through ventilation system |
| CN112761713B (en) * | 2021-01-29 | 2022-07-05 | 太原理工大学 | Safe and long-acting gas extraction method for goaf of stoping working face of high-gas mine |
| CN113446051B (en) * | 2021-07-30 | 2022-07-29 | 太原理工大学 | Goaf ultrahigh-position drill hole gas extraction method under roof cutting and entry retaining process |
| CN113550782B (en) * | 2021-08-20 | 2022-11-29 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
| CN114412543B (en) * | 2021-12-29 | 2024-06-07 | 煤炭科学技术研究院有限公司 | Gas control method for first-produced coal seam of close-range outburst coal seam group |
| CN116971817B (en) * | 2023-09-25 | 2023-12-12 | 太原理工大学 | High-gas working face ventilation method for alternately entering and returning air in gallery |
| CN117027921B (en) * | 2023-09-28 | 2023-12-12 | 太原理工大学 | Method for preventing influence of high-gas goaf on nearby working surface |
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2015
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| CN105221179A (en) | 2016-01-06 |
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