CN100593630C - Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer - Google Patents
Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer Download PDFInfo
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- CN100593630C CN100593630C CN200710158477A CN200710158477A CN100593630C CN 100593630 C CN100593630 C CN 100593630C CN 200710158477 A CN200710158477 A CN 200710158477A CN 200710158477 A CN200710158477 A CN 200710158477A CN 100593630 C CN100593630 C CN 100593630C
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Abstract
The invention discloses a gas drainage method for the stoped out area and neighboring layers by obliquely boring along the caving zone edge to embed thimbles. A plurality of oblique drainage bores aredrilled at certain interspaces in the stoped out area coal seam roof cranny zone along the caving zone edge in the return-air tunnel, and the bores are sealed after the pre-embedded thimbles and theshock tubes are inserted in the oblique bores. An armoured rubber hose is connected with the main drainage pipeline, the gas in the coal seam is pre-drained before the working face is mined, the oblique bores are communicated with the coal seam roof cranny zone after the working face is mined, and the gas in the stoped out area and the neighboring layers can be drained through the cranny. When conditions for directly drilling a plurality of oblique drainage bores in the stoped out area coal seam roof cranny zone along the caving zone edge in the return-air tunnel are not provided, and then boring fields are cut at certain interspaces on the side of the return-air tunnel departing the working face for drilling a plurality of oblique drainage bores in the stoped out area coal seam roof cranny zone along the caving zone edge in the return-air tunnel. The invention has the advantages that the process of digging roof drainage tunnel is dispensed; and the outlay, the labor power, the material resources, and the financial power are saved.
Description
Technical field
The present invention relates to the gas drainage method of colliery coal containing methane gas layer, particularly goaf, the next layer gas drainage method.
Background technology
At present, known goaf, the next layer gas drainage method are at first to beat independent gas drainage under suction tunnel, i.e. top board extraction lane, the hole of drilling in goaf fissure zone from top board extraction lane, extraction goaf or the next layer gas.It is the patent of invention of " method of working seam top board gas drainage under suction " of 03113021.6 application by Huainan Mining's application number that representative method has on March 18th, 2003.The serve as reasons boring or the tunnel that are arranged in " annular fissure circle " of technological core draws out methane.Need to beat independent top board extraction lane, by top board extraction lane or by the top board extraction lane hole extraction working seam top board gas of drilling.In addition, on March 28th, 2003 being arranged is " the long-range gas pressure relief extraction of the soft high seam of the high gas of the gas permeability method " of 03113094.1 application by Huainan Mining's application number.Technological core is the release crack that forms in pressure released seam along layer separation fracture, get to the gridding type layer-through extraction by pressure released seam base plate gas drainage under suction lane pressure released seam in pressure released seam base plate gas drainage under suction lane in advance and hole, gas pressure relief compiles along holing to extraction along layer separation fracture, and is able to extraction by extraction pipeline.Wherein all need to beat independently gas drainage under suction tunnel at roof or base plate.Increase process procedure, and need a large amount of funds, consume great amount of manpower and material resources, financial resources; That's how things stand in present technical development.
Summary of the invention
Need to beat independent gas drainage under suction tunnel, i.e. top board extraction lane in existing goaf, the next layer gas drainage method in order to overcome.Carry out gas drainage under suction from top board extraction lane to the goaf fissure zone hole of drilling, simplify the technology link, reduction of expenditure, human and material resources, financial resources.The invention provides a kind of caving zone edge inclined drill hole bushing burying goaf, the next layer gas drainage method, this method can not only be carried out extraction to goaf, the next layer gas effectively, has deducted the plate extraction lane technology of pinching simultaneously.
The technical scheme that technical solution problem of the present invention is adopted is: play some inclination extraction borings in return airway at a certain distance in the roof fissure zone of goaf along the caving zone edge, service sleeve and floral tube are inserted inclination extraction boring back sealing of hole, armored hose connects the extraction main line, do not adopt at work plane and preceding gas to be taken out in advance, work plane is adopted the extraction boring of tilting later and then is communicated with the roof fissure zone, and by this fissure zone extraction goaf, the next layer gas.
In return airway, do not have when directly in goaf fissure zone, beating some inclination extraction borehole conditions, deviate from work plane one side at the place ahead of work plane direction return airway and spud at a certain distance and in the roof fissure zone of goaf, play some inclination extractions along the caving zone edge and hole along the caving zone edge.
Inclination extraction boring is consistent with the inclination angle of working face mining caving zone along the inclination angle of work plane direction.
It is four～five times of mining heights apart from the vertical height of roof that inclination extraction drillhole height is got to the roof fissure zone.
Service sleeve and floral tube are inserted inclination extraction boring back hole-sealing technology for service sleeve and floral tube insertion inclination extraction boring are passed 3.0～5.0 meters in coal seam, obturaged in the annular space bottom that forms between service sleeve and the inclination extraction boring and insert Grouting Pipe with quick cement or fixing agent for anchor poles, when treating that quick cement or fixing agent for anchor poles reach desired strength, with high pressure slurry pump cement is injected annular space between inclination extraction boring and the sleeve pipe, stop slip casting behind the anti-slurry of service sleeve and finish sealing of hole.
The invention has the beneficial effects as follows to have deducted the plate extraction lane technology of pinching, saved funds, human and material resources, financial resources.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an embodiment of the invention principle schematic
Fig. 2 is the C-C generalized section of embodiment of the invention principle schematic 1
1. drill sites among the figure, 2. inclination extraction boring, 3. roof fissure zone, 4. work plane, 5. erecting dense individual props band, 6. return airway, 7. work plane direction, 10. extraction main line, 11. sleeve pipes, 12. floral tubes, 14. coal seams.
The specific embodiment
Referring to Fig. 1, Fig. 2, deviate from work plane one side at the place ahead of work plane direction 7 return airway, spud in every 30.0 meters distances and 1 to roof fissure zone 3 in, play four inclination extractions along erecting dense individual props band 5 edges and hole 2.Inclination extraction boring perforate height is identical with drill site 1 top board height, and inclination extraction boring 2 is consistent with the inclination angle of work plane 4 caving zones along the inclination angle of work plane direction 7.It is four times of mining heights apart from the vertical height of roof that inclination extraction drillhole height is got to roof fissure zone 3.Service sleeve 11 and floral tube 12 insertion inclination extraction borings are passed 4.0 meters in coal seam, obturaged in annular space bottom between service sleeve 11 and the inclination extraction boring 2 and insert Grouting Pipe with quick cement or fixing agent for anchor poles, when treating that quick cement or fixing agent for anchor poles reach desired strength, with high pressure slurry pump cement is injected annular space between inclination extraction boring 2 and the sleeve pipe, stop slip casting behind the service sleeve 11 anti-slurries and finish sealing of hole.Armored hose connects extraction main line 10, does not adopt at work plane 4 and preceding gas is taken out in advance, and work plane 4 is adopted out-of-date inclination extraction boring 2 by roof fissure zone 3 extraction erecting dense individual props bands 5, the next layer gas.
Claims (10)
1. a caving zone edge inclined drill hole bushing burying goaf, the next layer gas drainage method, it is characterized in that in return airway, beating in the roof fissure zone of goaf along the caving zone edge at a certain distance some inclination extraction borings, service sleeve and floral tube are inserted inclination extraction boring back sealing of hole, armored hose connects the extraction main line, do not adopt at work plane and preceding gas to be taken out in advance, work plane is adopted the extraction boring of tilting later and then is communicated with the roof fissure zone, and by this fissure zone extraction goaf, the next layer gas.
2. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 1 goaf, the next layer gas drainage method, being characterised in that in return airway does not have when directly beating some inclination extraction borehole conditions in goaf fissure zone along the caving zone edge, deviates from work plane one side at the place ahead of work plane direction return airway and spuds at a certain distance and play some inclination extractions along the caving zone edge in the roof fissure zone of goaf and hole.
3. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 1 goaf, the next layer gas drainage method are characterised in that inclination extraction boring is consistent with the inclination angle of working face mining caving zone along the inclination angle of work plane direction.
4. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 2 goaf, the next layer gas drainage method are characterised in that inclination extraction boring is consistent with the inclination angle of working face mining caving zone along the inclination angle of work plane direction.
5. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 3 goaf, the next layer gas drainage method are characterised in that it is four～five times of mining heights apart from the vertical height of roof that inclination extraction drillhole height is got to the roof fissure zone.
6. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 4 goaf, the next layer gas drainage method are characterised in that it is four～five times of mining heights apart from the vertical height of roof that inclination extraction drillhole height is got to the roof fissure zone.
7. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 5 goaf, the next layer gas drainage method, be characterised in that service sleeve and floral tube are inserted inclination extraction boring back hole-sealing technology for service sleeve and floral tube insertion inclination extraction boring are passed 3.0～5.0 meters in coal seam, obturaged in the annular space bottom that forms between service sleeve and the inclination extraction boring and insert Grouting Pipe with quick cement or fixing agent for anchor poles, when treating that quick cement or fixing agent for anchor poles reach desired strength, with high pressure slurry pump cement is injected annular space between inclination extraction boring and the sleeve pipe, stop slip casting behind the anti-slurry of service sleeve and finish sealing of hole.
8. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 6 goaf, the next layer gas drainage method, be characterised in that service sleeve and floral tube are inserted inclination extraction boring back hole-sealing technology for service sleeve and floral tube insertion inclination extraction boring are passed 3.0～5.0 meters in coal seam, obturaged in the annular space bottom that forms between service sleeve and the inclination extraction boring and insert Grouting Pipe with quick cement or fixing agent for anchor poles, when treating that quick cement or fixing agent for anchor poles reach desired strength, with high pressure slurry pump cement is injected annular space between inclination extraction boring and the sleeve pipe, stop slip casting behind the anti-slurry of service sleeve and finish sealing of hole.
9. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 1 goaf, the next layer gas drainage method are characterised in that it is four～five times of mining heights apart from the vertical height of roof that inclination extraction drillhole height is got to the roof fissure zone.
10. a kind of caving zone edge inclined drill hole bushing burying as claimed in claim 2 goaf, the next layer gas drainage method are characterised in that it is four～five times of mining heights apart from the vertical height of roof that inclination extraction drillhole height is got to the roof fissure zone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710158477A CN100593630C (en) | 2007-11-23 | 2007-11-23 | Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710158477A CN100593630C (en) | 2007-11-23 | 2007-11-23 | Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer |
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| CN100593630C true CN100593630C (en) | 2010-03-10 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121369B (en) * | 2010-12-15 | 2013-04-24 | 中国神华能源股份有限公司 | Method for separating gas |
| CN102003201B (en) * | 2010-12-21 | 2013-01-02 | 山西晋城无烟煤矿业集团有限责任公司 | Gas drainage method in gob of coal mine |
| CN102094669B (en) * | 2010-12-24 | 2012-11-28 | 中国矿业大学 | Three-dimensional source separated pressure-releasing gas treatment method |
| CN102146794B (en) * | 2011-03-04 | 2013-02-13 | 河南理工大学 | Grouting, consolidating and gob-side tunneling process method |
| CN102162367A (en) * | 2011-03-23 | 2011-08-24 | 彬县水帘洞煤炭有限责任公司 | Arrangement method for gas drainage drill sites of highly-gassy fully-mechanized top-coal caving surface |
| CN103616293B (en) * | 2013-12-02 | 2015-10-28 | 安徽理工大学 | Colliery old gob caving band fragmented rock body secondary deformation compaction simulation experimental provision |
| CN105003295A (en) * | 2015-08-04 | 2015-10-28 | 山西晋城无烟煤矿业集团有限责任公司 | Corner gas control method on adjacent roadway working faces |
| CN105401973A (en) * | 2015-10-24 | 2016-03-16 | 山西晋城无烟煤矿业集团有限责任公司 | Method for performing extraction treatment on corner gas on work faces of adjacent roadways |
| CN109469503B (en) * | 2018-11-07 | 2021-03-23 | 兖矿新疆矿业有限公司 | Fire prevention and extinguishing method for fully mechanized caving face stoping line by using high-position drill site |
| CN109899106B (en) * | 2019-05-05 | 2020-09-11 | 辽宁工程技术大学 | Gas extraction method for adjacent layer of turning long drill hole for avoiding caving zone |
| CN113339056A (en) * | 2021-06-24 | 2021-09-03 | 中国矿业大学 | Fluidized gangue layer surface subsequent filling system and method |
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