CN102444402B - Method for regionally preventing coal and gas outburst - Google Patents
Method for regionally preventing coal and gas outburst Download PDFInfo
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- CN102444402B CN102444402B CN2011104522878A CN201110452287A CN102444402B CN 102444402 B CN102444402 B CN 102444402B CN 2011104522878 A CN2011104522878 A CN 2011104522878A CN 201110452287 A CN201110452287 A CN 201110452287A CN 102444402 B CN102444402 B CN 102444402B
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- 239000003245 coal Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003325 tomography Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000010998 test method Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- 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)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Ventilation (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides a method for regionally preventing coal and gas outburst. The method has the following beneficial effects that: by reasonably dividing a mining region, the horizontal maximum ground stress directions in the mining region are basically identical; and by adjusting the extraction direction of the working surface, the seam roadways are arranged and tunnelled in parallel to the horizontal maximum ground stress directions as far as possible to reduce the concentration of ground stress at the tip of the extracting working surface, reduce the coal and gas outburst hazards in the processes of roadway tunnelling and working surface extraction and reduce the coal and gas outburst hazards in the mines as a whole.
Description
Technical field
The present invention relates to a kind of method of regional control coal and Gas Outburst, be particularly useful for having coal and gas outburst risk coal seam regional control coal and Gas Outburst.
Background technology
China is large to energy demand, and wherein coal provides and surpassed 70% the energy, and the coal seam that has in a large number coal and gas outburst risk must adhere to that exploitation could meet the national product demand.Coal and Gas Outburst can cause huge casualties and property loss, in order to prevent and treat the generation of coal and gas burst accident, mainly contain at present exploitation topping and zone and take out in advance two kinds of regional anti-burst methods, although exploitation topping effect is remarkable, but be only applicable to the coal seam group condition, after topping and protected seam interlamellar spacing surpassed protection domain, the protected seam release was insufficient in addition, and the extinction effect is undesirable; Because China's gas permeability of coal seam is generally poor, it is often undesirable that effect is taken out in zone in advance, can not eliminate timely and effectively coal and gas outburst risk.When taking out in advance coal-bed gas in exploitation topping and zone and can not effectively eliminate coal and gas outburst risk fast, how by other feasible methods, to realize that the regional protrusion-dispelling of dangerous seam with potential is on-the-spot problem demanding prompt solution always.
Summary of the invention
Technical problem: the purpose of this invention is to provide that a kind of method is simple, extinction is effective, can reduce regionality control coal that getting working face stress concentrates and the method for Gas Outburst,
Technical scheme: the method for a kind of regional control coal of the present invention and Gas Outburst comprises the following steps:
A, press mine tomography and fold and distribute and divide exploiting field, make section boundary be the axial region of tomography or fold as far as possible;
B, according to the geostatic stress method of testing of routine, test out the maximum stress direction of along continuous straight runs in the scope of exploiting field;
When the angle of the maximum stress direction of survey along continuous straight runs and bearing during less than 45 °, arrange air intake lane, exploiting field and exploiting field return airway along coal seam tendency, and driving, then along bearing assign a work face intake and tailentry road, and driving, make the back production of work plane across pitch;
When the angle of the maximum stress direction of survey along continuous straight runs and bearing during greater than 45 °, arrange air intake lane, exploiting field and exploiting field return airway along bearing, and driving, then be inclined to assign a work face intake and tailentry road along coal seam, and driving, make the back production of work plane across strike.
Beneficial effect: research shows that geostatic stress is stable astable, on a large scale in stress field have larger difference, and certain more among a small circle in stress field relatively stable.The present invention is by the classifying rationally exploiting field, and tomography or fold axial region, as section boundary, are made and samely take to be in same geologic element, can make within the scope of same exploiting field stress field relatively stable, and the maximum stress field direction of level is basically identical.Due to the main across pitch of working face of coal seam back production or tendency, by optimizing the coal seam mining direction, make heading be parallel to the maximum stress direction of along continuous straight runs, can reduce termination, tunnel geostatic stress and concentrate, reduced on the whole coal and gas outburst risk in the tunnelling process.The present invention, from the angle of the optimal design of whole mine and exploiting field system, can reduce mine coal and gas outburst risk on the whole, wide accommodation, and effect is remarkable.
Description of drawings
Fig. 1 is the angle of the maximum stress direction of along continuous straight runs and bearing Mining Area arrangement diagram during less than 45 °;
Fig. 2 is the angle of the maximum stress direction of along continuous straight runs and bearing Mining Area arrangement diagram during greater than 45 °;
In figure: 1-work plane intake, 2-tailentry road, 3-exploiting field return airway, air intake lane, 4-exploiting field, 5-exploiting field, 6-work plane.
The specific embodiment
The invention will be further described below in conjunction with the embodiment in accompanying drawing:
The method of regional control coal of the present invention and Gas Outburst, at first according to the mine coal seam occurrence condition, press mine tomography and fold distribution division exploiting field 5, make 5 borders, exploiting field is the axial region of tomography or fold as far as possible, when a plurality of tomographies or fold are arranged, select the axial region of relatively large tomography and fold as section boundary, avoid in exploiting field that tomography and the fold that can seriously change stress field arranged, make same exploiting field be in same geologic element, guarantee in same exploiting field that the maximum geostatic stress of level in the same direction., according to the existing geostatic stress method of testing of routine,, as the relatively ripe geostatic stress measuring technology such as stress-relief method, hydrofracturing method or acoustic-emission, test out the maximum stress direction of along continuous straight runs in 5 scopes of exploiting field; Due to the exploiting field 5 main across pitch of inner working face mining direction or tendency exploitation, main heading when work plane 6 along which direction is exploited, as work plane intake 1 and tailentry road 2, also will be along that direction driving, to produce different geostatic stress in the termination, tunnel and concentrate when the maximum stress direction of along continuous straight runs is different from the axial angle in tunnel, and cause coal different from gas outburst risk.
In order to reduce coal and gas outburst risk, when the angle of the maximum stress direction of survey along continuous straight runs and bearing during less than 45 °, arrange air intake lane, exploiting field 4 and exploiting field return airway 3 along the coal seam tendency, and driving, again along bearing assign a work face intake 1 and tailentry road 2, and driving, make work plane 6 across pitch back production; When the angle of the maximum stress direction of survey along continuous straight runs and bearing during greater than 45 °, arrange air intake lane, exploiting field 4 and exploiting field return airway 3 along bearing, and driving, be inclined to again assign a work face intake 1 and tailentry road 2 along coal seam, and driving, make work plane 6 across strike back production.
Because air intake lane, exploiting field 4 and exploiting field return airway 3 are generally stone head, without coal and gas outburst risk; And work plane intake 1 and tailentry road 2 are generally heading, be parallel to the maximum stress direction of along continuous straight runs by making these headings be more prone to, thereby reach the purpose that reduces coal road driving and working face extraction Coal During and gas outburst risk.
Claims (1)
1. the method for a regional control coal and Gas Outburst is characterized in that comprising the following steps:
A, press mine tomography and fold and distribute and divide exploiting field (5), make border, exploiting field (5) be the axial region of tomography or fold as far as possible;
B, according to the geostatic stress method of testing of routine, test out the maximum stress direction of along continuous straight runs in the scope of exploiting field (5);
When the angle of the maximum stress direction of survey along continuous straight runs and bearing during less than 45 °, arrange air intake lane, exploiting field (4) and exploiting field return airway (3) along the coal seam tendency, and driving, again along bearing assign a work face intake (1) and tailentry road (2), and driving, make work plane (6) across pitch back production;
When the angle of the maximum stress direction of survey along continuous straight runs and bearing during greater than 45 °, arrange air intake lane, exploiting field (4) and exploiting field return airway (3) along bearing, and driving, be inclined to again assign a work face intake (1) and tailentry road (2) along coal seam, and driving, make work plane (6) across strike back production.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104522878A CN102444402B (en) | 2011-12-30 | 2011-12-30 | Method for regionally preventing coal and gas outburst |
| PCT/CN2012/073236 WO2013097370A1 (en) | 2011-12-30 | 2012-03-29 | Method for localised prevention of coal and firedamp outbursts |
| AU2012354005A AU2012354005B2 (en) | 2011-12-30 | 2012-03-29 | Method of prevention and control zonal coal and gas outburst |
| RU2013125335/03A RU2554605C9 (en) | 2011-12-30 | 2012-03-29 | Method for prevention and control of sudden zonal coal and gas emissions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104522878A CN102444402B (en) | 2011-12-30 | 2011-12-30 | Method for regionally preventing coal and gas outburst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102444402A CN102444402A (en) | 2012-05-09 |
| CN102444402B true CN102444402B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104522878A Active CN102444402B (en) | 2011-12-30 | 2011-12-30 | Method for regionally preventing coal and gas outburst |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102444402B (en) |
| AU (1) | AU2012354005B2 (en) |
| RU (1) | RU2554605C9 (en) |
| WO (1) | WO2013097370A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952448B (en) * | 2016-06-30 | 2017-12-12 | 太原理工大学 | High seam lamprophyre horizontal fragmentation hydrofracturing chemical modification method |
| CN106089174B (en) * | 2016-06-30 | 2019-05-14 | 太原理工大学 | The method in hydrofracturing chemically expansible agent filling speedy drivage tunnel |
| CN109711632B (en) * | 2018-12-29 | 2023-04-18 | 辽宁工程技术大学 | Coal and gas outburst prediction method based on gas emission abnormal sensitive index |
| CN110751337B (en) * | 2019-10-22 | 2022-09-09 | 中煤科工集团重庆研究院有限公司 | Method for predicting coal and gas outburst and secondary disaster danger area range thereof |
| CN111236940B (en) * | 2020-01-14 | 2021-06-01 | 山西晋城无烟煤矿业集团有限责任公司 | Method for safely and efficiently passing reverse fault group on fully mechanized coal mining face |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1661451A1 (en) * | 1989-07-26 | 1991-07-07 | О.Г.Кременев и В.С.Маевский | Method and device for forecasting outburst hazard of coal seams in geological failure zones |
| CN1207155A (en) * | 1995-11-13 | 1999-02-03 | 鲁阿科勒股份公司 | Process for ensuring optimal orientation of face working operations, in particular in a bard coal deposit |
| CN101105138A (en) * | 2007-08-15 | 2008-01-16 | 湖南科技大学 | Method for suppressing coal and gas outburst |
| CN102061918A (en) * | 2009-11-12 | 2011-05-18 | 中国矿业大学 | Coal mining method for co-mining gas in mine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1209894A1 (en) * | 1984-08-16 | 1986-02-07 | Украинский Филиал Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Института Горной Геомеханики И Маркшейдерского Дела | Method of preventing spontaneous outbursts in elevated rock pressure zones |
| SU1470972A1 (en) * | 1986-07-28 | 1989-04-07 | Донецкий политехнический институт | Method of preventing coal and gas outbursts in development workings |
| SU1601393A1 (en) * | 1988-06-08 | 1990-10-23 | Коммунарский горно-металлургический институт | Method of preventing spontaneous outbursts of coal and gas in development workings |
| SU1645553A1 (en) * | 1989-05-15 | 1991-04-30 | Донецкий политехнический институт | Method of mining outburst-prone coal seams |
| RU1789732C (en) * | 1990-02-19 | 1993-01-23 | Днепропетровский химико-технологический институт | Method for prevention of coal and gas outburst in driving mine working |
| CN101280688B (en) * | 2008-05-27 | 2011-05-04 | 河南理工大学 | Reagional eliminating method for drilling along the top at prominent coal heading face |
| CN101424181B (en) * | 2008-12-05 | 2012-10-03 | 新奥科技发展有限公司 | Method and system for determining and penetrating underground coal gasification passage |
| CN102094669B (en) * | 2010-12-24 | 2012-11-28 | 中国矿业大学 | Three-dimensional source separated pressure-releasing gas treatment method |
-
2011
- 2011-12-30 CN CN2011104522878A patent/CN102444402B/en active Active
-
2012
- 2012-03-29 WO PCT/CN2012/073236 patent/WO2013097370A1/en active Application Filing
- 2012-03-29 RU RU2013125335/03A patent/RU2554605C9/en active
- 2012-03-29 AU AU2012354005A patent/AU2012354005B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1661451A1 (en) * | 1989-07-26 | 1991-07-07 | О.Г.Кременев и В.С.Маевский | Method and device for forecasting outburst hazard of coal seams in geological failure zones |
| CN1207155A (en) * | 1995-11-13 | 1999-02-03 | 鲁阿科勒股份公司 | Process for ensuring optimal orientation of face working operations, in particular in a bard coal deposit |
| CN101105138A (en) * | 2007-08-15 | 2008-01-16 | 湖南科技大学 | Method for suppressing coal and gas outburst |
| CN102061918A (en) * | 2009-11-12 | 2011-05-18 | 中国矿业大学 | Coal mining method for co-mining gas in mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102444402A (en) | 2012-05-09 |
| RU2554605C2 (en) | 2015-06-27 |
| AU2012354005A1 (en) | 2013-07-18 |
| WO2013097370A1 (en) | 2013-07-04 |
| RU2554605C9 (en) | 2015-11-27 |
| AU2012354005B2 (en) | 2015-08-27 |
| RU2013125335A (en) | 2015-03-10 |
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