CN103603673B - Stope face parallel dual-U-type roadway - Google Patents
Stope face parallel dual-U-type roadway Download PDFInfo
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- CN103603673B CN103603673B CN201310591773.7A CN201310591773A CN103603673B CN 103603673 B CN103603673 B CN 103603673B CN 201310591773 A CN201310591773 A CN 201310591773A CN 103603673 B CN103603673 B CN 103603673B
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Abstract
The present invention is specially a kind of stope face parallel dual-U-type roadway, solve existing support in gateway of coal mining face arrange unreasonable cause gas at upper corner difficulty of governance large, administer not thorough and many lanes and arrange the problem that the rate of extraction is low.Comprise set gradually from top to bottom track lane, equipment lane, return airway, auxiliary return airway, auxiliary air inlet lane; Track lane and equipment lane are positioned at the top of stope, return airway, auxiliary return airway and auxiliary air inlet lane are positioned at the below of stope, track lane, equipment lane and the right-hand member of return airway are provided with the Qie Yan lane be communicated with three, auxiliary return airway is communicated with the right-hand member in auxiliary air inlet lane, and auxiliary between return airway and auxiliary air inlet lane, be arranged at intervals with some air connections, be provided with the gas drainage pipe be communicated with goaf in auxiliary return airway.The present invention has environmental protection and energy saving, economizes on resources and effective advantage improving the rate of extraction.
Description
Technical field
The present invention relates to underground coal mine support in gateway of coal mining face arrangement, be specially a kind of stope face parallel dual-U-type roadway.
Background technology
Longwell process for stoping is generally adopted in current China's coal-mine down-hole coal excavation process, stope according to entering, return aircourse arrangement is different, " U " type, " U+L " type, " three enter twice " etc. can be divided into, but there is the drawback being difficult to overcome in these gateway layout method self at present, be when stope back production, gas at upper corner difficulty of governance is large, improvement is not thorough; Shi Duo lane is arranged, arranges coal column many, reduces the rate of extraction.
Summary of the invention
In order to solve, existing support in gateway of coal mining face layout is unreasonable causes the problem that gas at upper corner difficulty of governance is large, improvement is thorough and many lanes layout rate of extraction is low in the present invention, provides a kind of stope face parallel dual-U-type roadway.
The present invention adopts following technical scheme to realize: stope face parallel dual-U-type roadway, comprise set gradually from top to bottom track lane, equipment lane, return airway, auxiliary return airway, auxiliary air inlet lane; Track lane and equipment lane are positioned at the top of stope, return airway, auxiliary return airway and auxiliary air inlet lane are positioned at the below of stope, track lane, equipment lane and the right-hand member of return airway are provided with the Qie Yan lane be communicated with three, auxiliary return airway is communicated with the right-hand member in auxiliary air inlet lane, and auxiliary between return airway and auxiliary air inlet lane, be arranged at intervals with some air connections, be provided with the gas drainage pipe be communicated with goaf in auxiliary return airway.
After coal mine down-hole tunnel has been arranged, carry out back production, stoping period, equipment lane and the track lane coal column of work plane inlet side can carry out back production, simultaneously along with the advance of the face, equipment lane, track lane, working face open-off cut eye and return airway are caving thereupon, and auxiliary air inlet lane and auxiliary return airway can successfully remain, and are this work plane and Adjacent Working Face service; Equipment lane, track lane, auxiliary air inlet lane are three air intake lanes, after air intake flows through work plane, and a part of distinguished and admirable inflow return airway, distinguished and admirable the flowing through after upper corner of a part flows into auxiliary return airway by air connection, solves gas at upper corner overrun issues; And form whole wind pressure ventilation system after setting up auxiliary air inlet lane, with the fresh distinguished and admirable high concentration gas by the auxiliary return airway of air connection dilution, ensure that the gas density of auxiliary return airway does not exceed standard; Gas drainage pipe can to the goaf at shutoff air connection place by high negative pressure pump drainage simultaneously, force goaf gas to discharge mine through gas pipeline, overcome existing support in gateway of coal mining face arrange unreasonable cause gas at upper corner difficulty of governance large, administer not thorough and many lanes and arrange the problem that the rate of extraction is low.
Reasonable in design of the present invention is reliable, and ensure that the gas density of return airway is no more than 1.0%, increase the air quantity of work plane, wind resource assessment ability effectively improves; And make goaf gas discharge mine by releasing pipe, improve stope extracting result; Between equipment lane and track lane, coal column can carry out back production simultaneously, decreases goaf drop coal column, has environmental protection and energy saving, economizes on resources and effective advantage improving the rate of extraction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-track lane, 2-equipment lane, 3-return airway, 4-assists return airway, 5-auxiliary air inlet lane, 6-Qie Yan lane, 7-air connection.
Detailed description of the invention
Stope face parallel dual-U-type roadway, comprise set gradually from top to bottom track lane 1, equipment lane 2, return airway 3, auxiliary return airway 4, auxiliary air inlet lane 5; Track lane 1 and equipment lane 2 are positioned at the top of stope, return airway 3, auxiliary return airway 4 and auxiliary air inlet lane 5 are positioned at the below of stope, track lane 1, equipment lane 2 and the right-hand member of return airway 3 are provided with the Qie Yan lane 6 be communicated with three, auxiliary return airway 4 is communicated with the right-hand member in auxiliary air inlet lane 5, and auxiliary between return airway 4 and auxiliary air inlet lane 5, be arranged at intervals with some air connections 7, be provided with the gas drainage pipe be communicated with goaf in auxiliary return airway 4.
In specific implementation process, first U-shaped tunnel is formed by track lane 1, equipment lane 2 and return airway 3, second U-shaped tunnel is formed by auxiliary return airway 4 and auxiliary air inlet lane 5, construct one at interval of 300m between equipment lane 2 and air intake lane, 1 two, track lane and get in touch with horizontal river, to construct an air connection 7 at interval of 50-70m between return airway 3 and auxiliary return airway 4, meet the requirement that gas at upper corner is administered; Auxiliary air inlet lane 5 and auxiliary return airway 4 constructs one and are got in touch with horizontal river and carry out whole wind pressure ventilation, the gas density of dilution ventilation connection roadway 7 blowout on the right side of tunnel.
Claims (1)
1. a stope face parallel dual-U-type roadway, is characterized in that: comprise set gradually from top to bottom track lane (1), equipment lane (2), return airway (3), auxiliary return airway (4), auxiliary air inlet lane (5); Track lane (1) and equipment lane (2) are positioned at the top of stope, return airway (3), auxiliary return airway (4) and auxiliary air inlet lane (5) are positioned at the below of stope, track lane (1), equipment lane (2) and the right-hand member of return airway (3) are provided with the Qie Yan lane (6) be communicated with three, auxiliary return airway (4) is communicated with the right-hand member of auxiliary air inlet lane (5), and auxiliary between return airway (4) and auxiliary air inlet lane (5), be arranged at intervals with some air connections (7), assist in return airway (4) and be provided with the gas drainage pipe be communicated with goaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591773.7A CN103603673B (en) | 2013-11-22 | 2013-11-22 | Stope face parallel dual-U-type roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591773.7A CN103603673B (en) | 2013-11-22 | 2013-11-22 | Stope face parallel dual-U-type roadway |
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| Publication Number | Publication Date |
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| CN103603673A CN103603673A (en) | 2014-02-26 |
| CN103603673B true CN103603673B (en) | 2015-11-04 |
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| CN201310591773.7A Active CN103603673B (en) | 2013-11-22 | 2013-11-22 | Stope face parallel dual-U-type roadway |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134214B (en) * | 2015-09-24 | 2017-12-19 | 中国矿业大学 | A kind of coal mining later stage secondary ventilation roadway layout and adjoining rock stability control method |
| CN108952716B (en) * | 2018-06-22 | 2020-06-09 | 太原理工大学 | Thick coal seam longwall working face multi-lane arrangement method |
| CN109057794A (en) * | 2018-08-13 | 2018-12-21 | 中煤能源研究院有限责任公司 | A kind of big coal-mining method of the coal column driving without coal pillar mining |
| 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 |
| 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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| CN103603673A (en) | 2014-02-26 |
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