CN105971627B - A kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle - Google Patents

A kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle Download PDF

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Publication number
CN105971627B
CN105971627B CN201610491688.7A CN201610491688A CN105971627B CN 105971627 B CN105971627 B CN 105971627B CN 201610491688 A CN201610491688 A CN 201610491688A CN 105971627 B CN105971627 B CN 105971627B
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development
odd
numbers
under suction
gas drainage
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CN105971627A (en
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辛亚军
安定超
李梦远
姬红英
贠东风
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Henan University of Technology
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Henan University of Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/14Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Abstract

The present invention discloses a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle, comprises the following steps:Stope drift active workings are arranged along rock stratum roof plate in the projecting coal bed trend of high inclination-angle, the bottom plate gas drainage under suction tunnel parallel with stope drift active workings is arranged in same level floor strata;Single even numbers connection roadway is designed in bottom plate gas drainage under suction tunnel to coal mining roadway, driving odd number connection roadway to coal mining roadway;At odd number fork, two development ends of stope drift active workings carry out gas drainage under suction;Even numbers connection roadway is tunneled to coal mining roadway, two development ends of coal mining roadway carry out gas drainage under suction at even numbers fork;To the odd number fork coal mining roadway driving after gas drainage under suction, and carry out gas drainage under suction;To the even numbers fork coal mining roadway driving after gas drainage under suction, and carry out gas drainage under suction;Odd number, even numbers fork coal mining roadway development end carry out the circulation of gas drainage under suction and tunnelling and synchronous, the completion projecting coal bed stope drift active workings protrusion-dispelling speedy drivage of high inclination-angle successively.

Description

A kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle
Technical field
The present invention relates to a kind of stope drift active workings driving method, belongs to mine down-hole tunnel driving technology field, more particularly to To the projecting coal bed stope drift active workings speedy drivage method of mine down-hole high inclination-angle.
Background technology
It is large-inclination-angle coal bed to refer to seam inclination in 35~55 ° of coal seams, because large-inclination-angle coal bed inclination angle is big so that stope drift active workings Arrangement is complicated, and tunnelling is difficult.If coal seam is projecting coal bed, it is necessary to this coal bed gas drainage is carried out, to reduce This coal seam gas-bearing capacity, it is ensured that stope drift active workings do not produce Gas Outburst during tunneling supporting and working face mining.Generally, Driving is conventional projecting coal bed stope drift active workings pick after the projecting coal bed stope drift active workings driving face of high inclination-angle carries out gas drainage under suction Enter method.At present, the projecting coal bed stope drift active workings driving of most of high inclination-angles is using driving method is blown out, i.e.,:Stope drift active workings are dug Enter working face and carry out Gas Drainage Hole Construction Along, install gas drainage under suction equipment and carry out gas drainage under suction, while gas density is supervised Survey, when gas density reaches setting value, remove gas drainage under suction equipment progress stope drift active workings and tunnel to gas drilling depth, digging Enter working face and carry out gas drainage under suction and tunnelling again, circulation construction, complete the projecting coal bed stope drift active workings driving of high inclination-angle.But should See, carry out gas drainage under suction in the projecting coal bed stope drift active workings driving face of high inclination-angle, stope drift active workings driving cannot be carried out, this The driving speed of stope drift active workings is undoubtedly slow down, causes excavation replacement nervous, seriously constrains the high-yield and high-efficiency of mine.Therefore, Seek the projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of new high inclination-angle to be particularly important.
The present invention arrangement and prominent coal along the projecting coal bed floor strata for moving towards stope drift active workings same level of high inclination-angle The parallel bottom plate gas drainage under suction lane of layer stope drift active workings, multiple level connecting tunnels are opened up to coal seam back production in bottom plate gas drainage under suction tunnel Tunnel, circulation and synchronous, the realization to be drawn out methane using odd number with even numbers fork stope drift active workings driving face with tunnelling The projecting coal bed stope drift active workings protrusion-dispelling speedy drivage of high inclination-angle, alleviate the nervous situation of the projecting coal bed excavation replacement of high inclination-angle.
The content of the invention
The present invention brings digging based on the projecting coal bed roadway head gas drainage under suction of high inclination-angle with tunnelling contradiction The problem of anxiety is taken over, proposes a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle, it is intended to solve high inclination-angle Efficiency between projecting coal bed roadway head gas drainage under suction and tunnelling, in the projecting coal bed back production lane of high inclination-angle Road horizontal plane bottom plate opens up the bottom plate gas drainage under suction tunnel parallel with stope drift active workings, and multiple water are opened up along bottom plate gas drainage under suction tunnel For flat connection roadway to coal mining roadway, each fork stope drift active workings are interior to form former and later two stope drift active workings driving faces, shape The circulation of singularization and driving face gas drainage under suction in the stope drift active workings of even numbers fork and tunnelling and synchronous, realizes high inclination-angle The purpose of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage.
To solve the above problems, a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle of the present invention, it is adopted The technical scheme taken is:Stope drift active workings are arranged along rock stratum roof plate in the projecting coal bed trend of high inclination-angle, in stope drift active workings same level Face floor strata arranges the bottom plate gas drainage under suction tunnel parallel with stope drift active workings;In bottom plate gas drainage under suction tunnel design odd number with it is double Connection roadway is counted to coal mining roadway, driving odd number level connecting tunnel to coal mining roadway, before making fork coal mining roadway Rear to formed two development ends;Two driving faces lay firedamp taking-out discharging drilling, installation in the stope drift active workings of odd number fork Gas drainage under suction equipment draws out methane;Even numbers connection roadway is tunneled to coal mining roadway, the coal mining roadway two at even numbers fork Development end arranges firedamp taking-out discharging drilling;Odd number fork coal mining roadway former and later two development ends progress lane after gas drainage under suction Road is tunneled, and gas drainage under suction is carried out after the completion of driving;Former and later two drivings of even numbers fork coal mining roadway after gas drainage under suction Face carries out tunnelling, and gas drainage under suction is carried out after the completion of driving;Odd number enters successively with even numbers fork coal mining roadway development end Row gas drainage under suction is carried out with the circulation of tunnelling with synchronous, and the protrusion-dispelling for completing the projecting coal bed stope drift active workings of high inclination-angle is quickly dug Enter.
This method mainly includes the following steps that:
Step 1, the design projecting coal bed stope drift active workings section of high inclination-angle is regular pentagonal, and protrudes coal along high inclination-angle Layer moves towards direction rock stratum roof plate arrangement, and the bottom plate watt parallel with stope drift active workings is arranged in stope drift active workings same level floor strata This drainage roadway, and excavate bottom plate gas drainage under suction tunnel;
Step 2, in bottom plate gas drainage under suction tunnel design odd number connection roadway, even numbers connection roadway and projecting coal bed time of high inclination-angle Adopt tunnel to communicate, tunnel horizontal odd number connection roadway to coal mining roadway, make odd number fork coal mining roadway axial direction shape Development end after development end and odd number before singularization;
Step 3, development end is laid gas drainage under suction and bored after development end and odd number before odd number in the stope drift active workings of odd number fork Hole, gas drainage under suction equipment is installed, carries out gas drainage under suction;
Step 4, horizontal even numbers connection roadway is tunneled to coal mining roadway, in even numbers fork coal mining roadway axial direction side Development end arrangement firedamp taking-out discharging drilling after development end and even numbers, installs gas drainage under suction equipment, carries out gas drainage under suction before to even numbers;
Step 5, development end gas density is 1% after development end before odd number in the coal mining roadway of odd number fork and odd number When following, the driving of development end after development end and odd number before odd number is carried out, digging footage is firedamp taking-out discharging drilling depth, is being tunneled After the completion of odd number before development end arrangement firedamp taking-out discharging drilling after development end and odd number, gas drainage under suction equipment is installed, carries out gas Extraction;
Step 6, development end gas drainage under suction concentration is small after development end is with even numbers before the coal mining roadway even numbers of even numbers fork When 1%, the driving of development end after development end and even numbers before even numbers is carried out, digging footage is firedamp taking-out discharging drilling depth, is being tunneled After the completion of even numbers before development end arrangement firedamp taking-out discharging drilling after development end and even numbers, gas drainage under suction equipment is installed, carries out gas Extraction;
Step 7, repeat step five and step 6, and circulate successively, it is fast to complete the projecting coal bed stope drift active workings protrusion-dispelling of high inclination-angle Speed driving.
Further, in step 1, bottom plate gas drainage under suction drift section is three-core arch.
Further, in step 2, odd number connection roadway, even numbers connection roadway arranged crosswise successively.
Further, in step 3, the drilling machine of firedamp taking-out discharging drilling is ZDY-750 rigs against outburst.
Further, in step 7, odd number fork stope drift active workings, even numbers fork stope drift active workings development end tunnelling with Gas drainage under suction is carried out for circulation synchronous.
The advantages of the present invention are:The present invention opens up in the projecting coal bed stope drift active workings horizontal plane bottom plate of high inclination-angle The bottom plate gas drainage under suction tunnel parallel with stope drift active workings, multiple level connecting tunnel roads are opened up to inclining greatly along bottom plate gas drainage under suction tunnel Cornicult coal output layer stope drift active workings, former and later two stope drift active workings development ends are formed in each fork stope drift active workings, formed odd number with it is double Fork stope drift active workings development end gas drainage under suction and the situation of tunnelling circulation synchronous, realize the projecting coal bed stope drift active workings of high inclination-angle The purpose of protrusion-dispelling speedy drivage, effectively alleviate the nervous situation of the projecting coal bed excavation replacement of high inclination-angle.
Brief description of the drawings
Fig. 1 is to realize a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method plan of high inclination-angle of the present invention.
Fig. 2 is Fig. 1 stope drift active workings, odd number connection roadway and bottom plate drainage roadway profile.
In figure:1 is gas drainage under suction tunnel;2 be stope drift active workings;3 be coal seam;4 be development end before even numbers;5 be even numbers fork; 6 be even numbers connection roadway;7 be development end after even numbers;8 be development end before odd number;9 be odd number fork;10 be odd number connection roadway;11 are Development end after odd number.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings with example to this Invention is described in further detail.
The invention provides a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle.
As shown in Fig. 1~2, embodiment of the invention comprises the following steps:
Step 1, the design projecting coal bed section of stope drift active workings 2 of high inclination-angle is regular pentagonal, and protrudes coal along high inclination-angle Layer 3 moves towards direction rock stratum roof plate arrangement, and the bottom parallel with stope drift active workings 2 is arranged in the same level floor strata of stope drift active workings 2 This drainage roadway 1 of pan tile, and excavate bottom plate gas drainage under suction tunnel 1;
Step 2, odd number connection roadway 10, even numbers connection roadway 6 and high inclination-angle are designed in bottom plate gas drainage under suction tunnel 1 and protrudes coal 3 stope drift active workings 2 of layer communicate, and tunnel horizontal odd number connection roadway 10 to coal mining roadway 2, make the stope drift active workings of 9 coal seam of odd number fork 3 2 axial directions form before odd number development end 11 after development end 8 and odd number;
Step 3, development end 11 is laid gas and taken out after development end 8 and odd number before odd number in the stope drift active workings 2 of odd number fork 9 Drilling is put, gas drainage under suction equipment is installed, carries out gas drainage under suction;
Step 4, horizontal even numbers connection roadway 6 is tunneled to the stope drift active workings 2 of coal seam 3, in the stope drift active workings 2 of 5 coal seam of even numbers fork 3 Development end 7 arranges firedamp taking-out discharging drilling after development end 4 and even numbers before axial direction even numbers, installs gas drainage under suction equipment, carries out watt This extraction;
Step 5, the gas of development end 11 is dense after development end 8 before odd number in the stope drift active workings 2 of 9 coal seam of odd number fork 3 and odd number When degree is below 1%, the driving of development end 11 after development end 8 and odd number before odd number is carried out, digging footage is that firedamp taking-out discharging drilling is deep Degree, development end 8 arranges firedamp taking-out discharging drilling with development end 11 after odd number before the odd number after the completion of driving, and installation gas drainage under suction is set It is standby, carry out gas drainage under suction;
Step 6, the gas drainage under suction of development end 7 after development end 4 is with even numbers before the even numbers of 5 coal seam of even numbers fork, 3 stope drift active workings 2 When concentration is less than 1%, the driving of development end 7 after development end 4 and even numbers before even numbers is carried out, digging footage is that firedamp taking-out discharging drilling is deep Degree, development end 4 arranges firedamp taking-out discharging drilling with development end 7 after even numbers before the even numbers after the completion of driving, and installation gas drainage under suction is set It is standby, carry out gas drainage under suction;
Step 7, repeat step five and step 6, and circulate successively, complete the projecting coal bed protrusion-dispelling of 3 stope drift active workings 2 of high inclination-angle Speedy drivage.
Further, in step 1, the section of bottom plate gas drainage under suction tunnel 1 is three-core arch.
Further, in step 2, odd number connection roadway 10, even numbers connection roadway 6 arranged crosswise successively.
Further, in step 3, the drilling machine of firedamp taking-out discharging drilling is ZDY-750 rigs against outburst.
Further, in step 7, the development end tunnel pick of the stope drift active workings 2 of odd number fork 9, the stope drift active workings 2 of even numbers fork 5 Enter and carried out with gas drainage under suction for circulation synchronous.
The present invention is not limited solely to the description of present embodiment, and that is made within the spirit and principles of the invention appoints What modifications, equivalent substitutions and improvements etc., all should be contained within protection scope of the present invention.

Claims (4)

  1. A kind of 1. projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle, it is characterised in that comprise the following steps:
    Step 1, design the projecting coal bed stope drift active workings section of high inclination-angle be regular pentagonal, and along high inclination-angle it is projecting coal bed walk Arranged to direction rock stratum roof plate, arrange that the bottom plate gas parallel with stope drift active workings is taken out in stope drift active workings same level floor strata Tunnel is put, and excavates bottom plate gas drainage under suction tunnel;
    Step 2, design odd number connection roadway, even numbers connection roadway and the projecting coal bed back production lane of high inclination-angle in bottom plate gas drainage under suction tunnel Road communicates, and tunnels horizontal odd number connection roadway to coal mining roadway, odd number fork coal mining roadway axial direction is formed list Development end after development end and odd number before number;
    Step 3, development end lays firedamp taking-out discharging drilling, peace after development end and odd number before odd number in the stope drift active workings of odd number fork Gas drainage under suction equipment is filled, carries out gas drainage under suction;
    Step 4, horizontal even numbers connection roadway is tunneled to coal mining roadway, coal mining roadway axial direction is double at even numbers fork Development end arrangement firedamp taking-out discharging drilling after development end and even numbers, installs gas drainage under suction equipment, carries out gas drainage under suction before number;
    Step 5, after development end before odd number in the coal mining roadway of odd number fork and odd number development end gas density 1% with When lower, the driving of development end after development end and odd number before odd number is carried out, digging footage is firedamp taking-out discharging drilling depth, is being tunneled Development end and development end arrangement firedamp taking-out discharging drilling after odd number, install gas drainage under suction equipment, carry out gas and take out before odd number after Put;
    Step 6, development end gas drainage under suction concentration is less than after development end is with even numbers before the coal mining roadway even numbers of even numbers fork When 1%, the driving of development end after development end and even numbers before even numbers is carried out, digging footage is firedamp taking-out discharging drilling depth, is being tunneled After the completion of even numbers before development end arrangement firedamp taking-out discharging drilling after development end and even numbers, gas drainage under suction equipment is installed, carries out gas Extraction;
    Step 7, repeat step five and step 6, and circulate successively, complete the projecting coal bed stope drift active workings protrusion-dispelling of high inclination-angle and quickly dig Enter.
  2. 2. a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle according to claim 1, its feature exist In in step 1, bottom plate drainage roadway section is three-core arch.
  3. 3. a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle according to claim 1, its feature exist In, in step 2, odd number connection roadway, even numbers connection roadway arranged crosswise successively.
  4. 4. a kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle according to claim 1, its feature exist In in step 3, the drilling machine of firedamp taking-out discharging drilling is ZDY-750 rigs against outburst.
CN201610491688.7A 2016-06-29 2016-06-29 A kind of projecting coal bed stope drift active workings protrusion-dispelling speedy drivage method of high inclination-angle Active CN105971627B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695714A (en) * 1970-10-16 1972-10-03 Shell Oil Co Mining ventilation method
CN1676877A (en) * 2005-04-26 2005-10-05 淮南矿业(集团)有限责任公司 Adjacent coal face alternating layout coal-mining method
CN101915118A (en) * 2010-08-13 2010-12-15 山西晋城无烟煤矿业集团有限责任公司 Method for progressive gas drainage in high gas medium-hard coal seam
CN104047629A (en) * 2014-06-25 2014-09-17 中国矿业大学 Method for extracting gas close to lower coal layer through directional drilling in thin coal seam fully-mechanized coal mining gob-side entry
CN204327172U (en) * 2014-10-17 2015-05-13 山西晋城无烟煤矿业集团有限责任公司 Formula boring goaf extraction structure before and after high-rise position
CN105240046A (en) * 2015-11-02 2016-01-13 山西晋煤集团技术研究院有限责任公司 Drill hole layout method for gas extraction during primary mining and stoping of large mining height fully-mechanized face

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695714A (en) * 1970-10-16 1972-10-03 Shell Oil Co Mining ventilation method
CN1676877A (en) * 2005-04-26 2005-10-05 淮南矿业(集团)有限责任公司 Adjacent coal face alternating layout coal-mining method
CN101915118A (en) * 2010-08-13 2010-12-15 山西晋城无烟煤矿业集团有限责任公司 Method for progressive gas drainage in high gas medium-hard coal seam
CN104047629A (en) * 2014-06-25 2014-09-17 中国矿业大学 Method for extracting gas close to lower coal layer through directional drilling in thin coal seam fully-mechanized coal mining gob-side entry
CN204327172U (en) * 2014-10-17 2015-05-13 山西晋城无烟煤矿业集团有限责任公司 Formula boring goaf extraction structure before and after high-rise position
CN105240046A (en) * 2015-11-02 2016-01-13 山西晋煤集团技术研究院有限责任公司 Drill hole layout method for gas extraction during primary mining and stoping of large mining height fully-mechanized face

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