CN105221179A - A kind of highly gassy mine Y type method of ventilation - Google Patents
A kind of highly gassy mine Y type method of ventilation Download PDFInfo
- Publication number
- CN105221179A CN105221179A CN201510694777.7A CN201510694777A CN105221179A CN 105221179 A CN105221179 A CN 105221179A CN 201510694777 A CN201510694777 A CN 201510694777A CN 105221179 A CN105221179 A CN 105221179A
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- lane
- chou
- crossheading
- track
- chou lane
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000009423 ventilation Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 34
- 238000000605 extraction Methods 0.000 claims abstract description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 11
- 230000005641 tunneling Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000003245 working effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 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
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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)
- Ventilation (AREA)
Abstract
A kind of highly gassy mine Y type method of ventilation is before crossheading driving, tunnels the Di Chou lane that orientation is corresponding with work plane track crossheading and open-off cut, and establish gas drainage pipe in seat earth rock stratum in lane; In working seam, track crossheading is tunneled and open-off cut forms ventilation system directly over Di Chou lane, at track crossheading end digging along bearing coal road, return air inclined gallery are tunneled downwards along seam inclination at coal road end, be communicated with Di Chou lane after arriving same layer position, Di Chou lane, then beat fire dam in connection position in Di Chou lane; After in working face extraction process, construct road-in packing retain track lane and gas drainage pipeline goaf gas drainage is set.This method solves work face upper corner angle methane accumulation and the Gas Outburst problem in driving, and safety is good; One lane is multiplex, and cost of winning is low; Work plane is empty lane only, and technique is simple.
Description
Technical field
The present invention relates to a kind of method of ventilation of highly gassy mine tunnel, particularly to the highly gassy mine Y type method of ventilation that existing airway improves.
Background technology
Be reasonable development coal resources without coal pillar mining, improve roadway maintenance, reduce tunnelling amount, be conducive to mine safety production and improve the advanced coal mining technique of of mine technology economic effect.Carry out without coal pillar mining, not only undergo technological transformation to mine main, relax the relationn of excavation and recovering and extend mine life and have realistic meaning, and Shi Shi coal enterprise improves safety condition and technical-economic index, increases production, one of important channel that net income increase is detracted.As a kind of non chain pillar entryprotection technology, gob side entry retaining is a kind of effective way of the reasonably existing coal resources of exploitation, raising coal resources recovery ratio.Current gob side entry retaining tunnelling and later stage stay lane method numerous, but a lot of method has some shortcomings part, is difficult to be applicable to high gas and outburst mine.
At publication number disclosed in CN102392642A " a kind of roadway layout method without pillar extraction work plane ", each work plane arranges two tunnels, article one, for newly to dig tunnel, another is gob side entry retaining or the pick lane of upper work plane, before this working face extraction, the tunnel in what it was adjacent take over job face and cut eye and excavate in advance, the Xin Jue lane of cutting eye and this work plane is connected, take over job during gob side entry retaining face new pick tunnel and cut the border return airway of eye as this work plane, stope drift active workings form Y-shaped ventilating system, effectively can solve face upper corner angle gas problem.But the method return air circuit is long, and flowing resistance is large, and the method does not have gas drainage under suction measure in tunnelling, Gas Outburst danger cannot be eliminated, especially when mine is high gas and outburst mine in stope drift active workings driving, potential safety hazard is large, and the method cannot be suitable for.
At publication number disclosed in CN104763434A " a kind of without coal column two lanes driving method ", coal column is not stayed between air return way and tail lane, as a tunnel wide lane tunnelling, build divider wall afterwards and break it into two, tail lane is as the auxiliary return airway of this work plane.Back production Hou Jiangwei lane stays, for subsequent work face uses.Tunnelling and later stage stay lane to consider as a whole by the method, are a kind of very good in pillar mining method, effectively can solve tunneling ventilation gas problem.But the method cannot form Y type and ventilate, and divider wall is constructed needs interval to leave a blank, service channel will experience to close for twice once to be opened, and technique is loaded down with trivial details, and the application limitation in highly gassy mine is very large.
At present in Yang Mei group ore deposit ongoing a kind of stay coal column two lane driving gob side entry retaining without in pillar mining method, when tunnelling, first prearranged pillar driving track lane and return airway, therebetween connection roadway is tunneled, when this working face extraction, stayed in track lane, headentry is air intake together with track lane, track Xiang Liu lane and return airway return air, form Y-shaped ventilating system; When next working face extraction, Coal Face Passing Through return airway, by coal column in the lump back production, now goes up tailentry as auxiliary air inlet lane and transportation roadway air intake together with track lane, track Xiang Liu lane and return airway return air, forms the ventilation system that three enter a time.This kind of method effectively can solve tunnelling ventilation and face upper corner angle gas problem, and does not need to arrange Special back air channel, but working face extraction will advance length Shang Guokong lane entirely, and this brings impact just to the safe and efficient production of work plane.
Therefore, seek one and effectively can solve tunnelling gas problem, technique is simple, can good conformity highly gassy mine without pillar mining method, be the perfect an urgent demand without coal pillar mining production technology and coal industry harmonious development.
Summary of the invention
Based on above prior art, the particular problem that the present invention will solve is without in coal pillar mining technology, how effectively to solve the gas problem in highly gassy mine tunnelling, working face extraction is empty lane only, making full use of each tunnel, to realize lane, tunnel one multiplex, and then propose a kind of highly gassy mine Y type method of ventilation.
A kind of highly gassy mine Y type method of ventilation of above-mentioned proposition is achieved through the following technical solutions.
Before this return airway driving, first cause plate destructing depth to tunnel Di Chou lane in seat earth rock stratum depending on exploitation, position, Di Chou lane is corresponding with this work plane track crossheading.Gas drainage pipeline is arranged in lane.In Di Chou lane, upwards in coal seam, beat firedamp taking-out discharging drilling, Gas pre-drainage is that the driving of crossheading and open-off cut eliminates Gas Outburst danger.
Directly over Di Chou lane, in working seam, tunnel track crossheading and open-off cut.After open-off cut is formed through ventilation system, at track crossheading end, dig the coal road along bearing direction, this coal road can be used as a part for subsequent work face open-off cut, lower driving return air inclined gallery are tilted to afterwards along coal seam, arrive and behind same layer position, Di Chou lane, be communicated with Di Chou lane along tunneling with Di Chou lane vertical direction, then beating fire dam in connection position and Di Chou lane is afterwards blocked.
Carry out at this work plane in the process of back production, construct road-in packing remained in track lane at work plane rear, obturation is other arranges gas drainage pipeline, and carry out extraction to gas in goaf, extraction pipeline is connected with gas drainage pipeline in Di Chou lane.Face-airing system is: track crossheading and haulage gate air intake, Liu Xiang and Di Chou lane is connected as return airway return air with crossdrift through return air inclined gallery.
Complete at this working face extraction, before lower work plane starts back production, the spoil utilizing down-hole to tunnel is by closely knit for the filling of return air inclined gallery.The like, until by complete for the back production of whole exploiting field.
The technical scheme of a kind of highly gassy mine Y type method of ventilation that the present invention is above-mentioned provided, compared with prior art, the beneficial effect had is as follows.
One is that this method arranges base plate extraction lane to gas pre-drainage in coal seam, eliminate crossheading and open-off cut tunnel in Gas Outburst dangerous, safety is good.
Two is that to arrange Di Chou lane at crossheading driving previous crops be that coal roadway tunneling outburst danger is eliminated in gas drainage under suction lane to this method; As return airway return air in working face extraction process; Extraction can be carried out to the gas in goaf again at work plane rear, achieve lane three use.Track crossheading remains and continues for next work plane, achieves a lane dual-purpose.Economic benefit is obvious.
Three is that this method arranges and forms the ventilation of Y type, solves face upper corner angle methane accumulation problem.
Four be this method in exploitation process without Guo Kong lane, technique is simple.
Accompanying drawing explanation
Fig. 1 is roadway layout graph of a relation of the present invention.
In figure: 1-track crossheading; 2-Di Chou lane; 3-stay lane; 4-windstone gate; 5-return air inclined gallery; 6-divider wall; 7-work plane; The lower work plane open-off cut of 8-part; 9-fire dam.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is made further instructions.
1, be first positioned at immediately below designed path crossheading position in distance seat earth certain depth driving lane, Di Chou lane 2, Liang Dichou.The Di Chou lane digging degree of depth should be greater than the plate destructing depth exploited and cause, and wherein, plate destructing depth is determined according to conditions such as field with "nine squares" geological conditions and seam mining thickness, specifically can refer to following formula and calculates:
In formula: h-base plate maximal destruction degree of depth, m;
K-factor of stress concentration;
H-adopt dark, m;
-floor strata inner membrance wipes angle, radian;
The average severe of γ-overlying rock, N/m
3;
σ
t-Rock Under Uniaxial Compression tensile strength, MPa;
L
x-face length, m;
R
0plastic zone, '-stope end scope, m.
Firedamp taking-out discharging drilling is arranged in Di Chou lane.Di Chou is through with upper work plane Di Chou lane along bearing driving after tunneling in lane predetermined location of starting cut.
2, after Di Chou lane 2 has been tunneled, haulage gate 5 and track crossheading 1 is tunneled respectively in coal seam directly over Liang Tiaodichou lane, after reaching open-off cut precalculated position, tunnel this work plane open-off cut and coal road 8, the length in tunnel 8 should make return air inclined gallery 5 avoid rib bearing pressure areas of elevated, and concrete length can refer to coal pillar width when coal pillar mining is stayed in colliery.8 can do the lower working face open-off cut eye of part.
3, be tilted to lower driving return air inclined gallery 5 from coal road 8 along with bearing vertical direction, inclination angle, tunnel is generally not more than 30 °, and concrete size considers convenient construction and economical rationality.
4, tunnel 5 is tunneled to layer position, place, Di Chou lane 2, is connected along tunneling windstone gate 4 with Di Chou lane 2 vertical direction with Di Chou lane.
5, at windstone gate and junction, Di Chou lane structure wall 9 by airtight for Di Chou lane.
6, after work plane starts back production, construct divider wall 6 at work plane rear and track crossheading 5 is remained as lower work plane haulage gate.
7, face-airing system is that haulage gate 5 air intake converges with track crossheading 1 air intake after work plane 7, and weary wind sequentially passes through and stays lane 3, coal road 8, return air inclined gallery 5, and windstone gate 4 enters Di Chou lane return air.
8, this working face extraction is complete, before next working face extraction, fills closely knit with the spoil that down-hole driving produces by return air inclined gallery 5.
9, back production successively in this way, until all just go out the coal in whole exploiting field.
10, air pipeline exhaust ventilation is utilized during the driving of Di Chou lane; Local fan ventilation is arranged during other tunnellings.
Claims (1)
1. a highly gassy mine Y type method of ventilation, described method is that first cause plate destructing depth to tunnel Di Chou lane in seat earth rock stratum depending on exploitation, position, Di Chou lane is corresponding with this work plane track crossheading before return airway driving; Gas drainage pipeline is arranged in lane; In Di Chou lane, upwards in coal seam, beat firedamp taking-out discharging drilling, Gas pre-drainage is that the driving of crossheading and open-off cut eliminates Gas Outburst danger;
Directly over Di Chou lane, in working seam, tunnel track crossheading and open-off cut; After open-off cut is formed through ventilation system, at track crossheading end, dig the coal road along bearing direction, described coal road is as a part for subsequent work face open-off cut, lower driving return air inclined gallery are tilted to afterwards along coal seam, arrive and behind same layer position, Di Chou lane, be communicated with Di Chou lane along tunneling with Di Chou lane vertical direction, then beating fire dam in connection position and Di Chou lane is afterwards blocked;
Carry out in exploitation process at mining face, construct road-in packing retain track lane at work plane rear, obturation is other arranges gas drainage pipeline, and carry out extraction to gas in goaf, extraction pipeline is connected with gas drainage pipe in Di Chou lane; Face-airing system is: track crossheading and haulage gate air intake, and Liu Xiang and Di Chou lane is communicated with as return airway return air through crossdrift;
Complete at this working face extraction, before lower work plane starts back production, the spoil utilizing down-hole to tunnel is by closely knit for the filling of return air inclined gallery; The like, until by complete for the back production of whole exploiting field.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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 true CN105221179A (en) | 2016-01-06 |
| CN105221179B CN105221179B (en) | 2017-10-31 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051125A (en) * | 2017-12-06 | 2018-05-18 | 中国矿业大学(北京) | A kind of closed goaf caving zone stress field evolution measurement method |
| WO2018176892A1 (en) * | 2017-03-31 | 2018-10-04 | 中国矿业大学 | Network integrated and coordinated control system and method for thin coal seam comprehensive mining and gas control |
| CN110469358A (en) * | 2019-08-16 | 2019-11-19 | 长沙有色冶金设计研究院有限公司 | Main return remodeling method suitable for underground centralized return air system |
| 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 |
| CN111594251A (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 for roadway layout system of deep well working surface |
| 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 |
| CN111622795A (en) * | 2020-04-30 | 2020-09-04 | 中国矿业大学(北京) | Three-dimensional ventilation method and system for mining by 110-method coal and gas outburst mine |
| CN111636870A (en) * | 2020-04-30 | 2020-09-08 | 王炯 | Roof-cutting roadway-retaining coal-pillar-free mining method |
| 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 |
| CN112761713A (en) * | 2021-01-29 | 2021-05-07 | 太原理工大学 | Safe and long-acting gas extraction method for goaf of stoping working face of high-gas mine |
| CN113446051A (en) * | 2021-07-30 | 2021-09-28 | 太原理工大学 | Goaf ultrahigh-position drill hole gas extraction method under roof cutting and roadway retaining process |
| CN113550782A (en) * | 2021-08-20 | 2021-10-26 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
| CN114412543A (en) * | 2021-12-29 | 2022-04-29 | 煤炭科学技术研究院有限公司 | Gas control method for first coal seam of close-distance outburst coal seam group |
| RU2788841C1 (en) * | 2021-12-09 | 2023-01-24 | Акционерное общество "СУЭК-Кузбасс" | Method for removal of methane-air mixture from the waste area |
| CN116971817A (en) * | 2023-09-25 | 2023-10-31 | 太原理工大学 | High-gas working face ventilation method for alternately entering and returning air in gallery |
| CN117027921A (en) * | 2023-09-28 | 2023-11-10 | 太原理工大学 | Method for preventing influence of high-gas goaf on nearby working surface |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176892A1 (en) * | 2017-03-31 | 2018-10-04 | 中国矿业大学 | Network integrated and coordinated control system and method for thin coal seam comprehensive mining and gas control |
| CN108051125A (en) * | 2017-12-06 | 2018-05-18 | 中国矿业大学(北京) | A kind of closed goaf caving zone stress field evolution measurement method |
| 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 |
| CN110469358A (en) * | 2019-08-16 | 2019-11-19 | 长沙有色冶金设计研究院有限公司 | Main return remodeling method suitable for underground centralized return air system |
| CN110469358B (en) * | 2019-08-16 | 2020-08-11 | 长沙有色冶金设计研究院有限公司 | Method for modifying main return air duct suitable for underground centralized return air |
| CN111622795B (en) * | 2020-04-30 | 2021-03-30 | 中国矿业大学(北京) | Three-dimensional ventilation method and system for mining by 110-method coal and gas outburst mine |
| CN111636870B (en) * | 2020-04-30 | 2021-10-08 | 王炯 | Roof-cutting roadway-retaining coal-pillar-free mining method |
| CN111622795A (en) * | 2020-04-30 | 2020-09-04 | 中国矿业大学(北京) | Three-dimensional ventilation method and system for mining by 110-method coal and gas outburst mine |
| CN111636870A (en) * | 2020-04-30 | 2020-09-08 | 王炯 | Roof-cutting roadway-retaining coal-pillar-free mining method |
| CN111594251A (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 for roadway layout system of deep well working surface |
| 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 |
| CN112761713A (en) * | 2021-01-29 | 2021-05-07 | 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 |
| CN113446051A (en) * | 2021-07-30 | 2021-09-28 | 太原理工大学 | Goaf ultrahigh-position drill hole gas extraction method under roof cutting and roadway retaining process |
| CN113550782A (en) * | 2021-08-20 | 2021-10-26 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
| RU2788841C1 (en) * | 2021-12-09 | 2023-01-24 | Акционерное общество "СУЭК-Кузбасс" | Method for removal of methane-air mixture from the waste area |
| CN114412543A (en) * | 2021-12-29 | 2022-04-29 | 煤炭科学技术研究院有限公司 | Gas control method for first coal seam of close-distance outburst coal seam group |
| 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 |
| CN116971817A (en) * | 2023-09-25 | 2023-10-31 | 太原理工大学 | High-gas working face ventilation method for alternately entering and returning air in gallery |
| 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 |
| CN117027921A (en) * | 2023-09-28 | 2023-11-10 | 太原理工大学 | Method for preventing influence of high-gas goaf on nearby working surface |
| 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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