CN104074538A - Primary extraction working face high-level suction tunnel gas extraction method - Google Patents
Primary extraction working face high-level suction tunnel gas extraction method Download PDFInfo
- Publication number
- CN104074538A CN104074538A CN201410303219.9A CN201410303219A CN104074538A CN 104074538 A CN104074538 A CN 104074538A CN 201410303219 A CN201410303219 A CN 201410303219A CN 104074538 A CN104074538 A CN 104074538A
- Authority
- CN
- China
- Prior art keywords
- lane
- working face
- level suction
- coal seam
- gas pumping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention relates to the technical field of high-level suction tunnel extraction and particularly discloses a primary extraction working face high-level suction tunnel gas extraction method. The primary extraction working face high-level suction tunnel gas extraction method is characterized in that a primary caving step is confirmed as L meters; a position of high-level suction is adjusted from a coal layer fissure zone to a coal layer caving zone; a cross-layer borehole which is constructed downwards penetrates a working face coal layer from the high-level suction tunnel downwards to reach to a bottom plate; and manual forced caving is adopted immediately after the working face mining, and meanwhile a top plate during the first weighting period is effectively controlled. The primary extraction working face high-level suction tunnel gas extraction method solves the problem that primary working face high-level suction tunnel is difficult to play its role, effectively prevents gas of the working face from exceeding a limit, lays a foundation for safe production of the working face, effectively improves high-level suction tunnel gas extraction amount, and makes contribution to integrated utilization of the gas of a mine.
Description
(1) technical field
The present invention relates to Gao Chou lane extraction technical field, particularly a kind of just mining face Gao Chou lane gas pumping method.
(2) background technology
Gao Chou lane extraction technology: in the fissure zone destroying at face roof, cloth sets high and takes out lane, after roof caving, mash gas balancing in adjacent layer and country rock is damaged, mobile along crack to goaf by the gas of adjacent layer and country rock desorb, by Gao Chou lane, gas is extracted out.Facts have proved, gas emission is at 35m
3back production face more than/min, adopting Gao Chou lane to carry out extraction is the most effective governing measure.The extraction of Gao Chou lane has that section is little, supporting is simple, construction speed is fast, it is simple to safeguard, manage, expense is low, extraction amount large, the feature of effect stability.
But for first mining face, Gao Chou lane is but difficult to play a role, and reason is before periodic weighting, immediate roof is caving bashing, old top is still intactly supported on two and helps on rib, and fissure zone also splits and do not form, the passage that face gas does not have Yu Gaochou lane to be communicated with.
At the large stope of gas emission, if can not effectively solve gas exceeding limit problem, by having a strong impact on the production of work plane, even cause more serious gas accident.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides the first mining face Gao Chou lane gas pumping method of a kind of handling safety, raising gas pumping amount.
The present invention is achieved through the following technical solutions:
Just a mining face Gao Chou lane gas pumping method, comprises the steps:
(1) determine that breaking down for the first time step pitch is L rice;
(2) when construction Gao Chou lane is apart from open-off cut horizontal range residue L rice, start to become slope, the layer position in Jiang Gaochou lane is adjusted into coal seam caving zone by cracks in coal seam band;
(3) in front end L meter Gao Chou lane, every same distance, a drill site is set, in each drill site construction under to layer-through drilling, layer-through drilling Cong Gaochou lane penetrates work plane coal seam downwards and reaches base plate;
(4) artificial overhead caving at once after working face mining, destroys the integrality of top board in advance, forms the gas pumping passage between Yu Gaochou lane, reduces First Weighting Interval of Main simultaneously.
More excellent scheme of the present invention is:
In step (1), L is 10-70, preferably 10-30.
In step (2), the height of cracks in coal seam band and coal seam caving zone is determined according to coal seam and overlying rock character or with reference to contiguous work plane actual range.
In step (3), in front end L meter Gao Chou lane, every 10m, a drill site is set, under the 3-5 of constructing in each drill site to layer-through drilling, and penetrate work plane coal seam and reach base plate.
In step (4), caving mode is explosion or mechanical system.
The invention solves just mining face Gao Chou lane be difficult to performance should effective problem, effectively prevent that face gas from transfiniting, for the safety in production of work plane lays the foundation, effectively improve the gas pumping amount in Gao Chou lane, for the comprehensive gas utilization of mine contributes.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is construction layout plan of the present invention;
Fig. 2 is I-I section arrangement diagram of the present invention;
Fig. 3 is II-II section arrangement diagram of the present invention.
In figure, 1 Gao Chou lane, 2 air intake crossheadings, 3 air return way, 4 open-off cuts, 5 layer-through drillings.6 caving zones, 7 fissure zones.
(5) specific embodiment
This pumping method is achieved by the following technical solution:
(1) determine that the factors such as breaking down for the first time (pressure) step pitch L:L value and basic rimrock, thickness and geological structure are relevant, be generally 10～30m, minority reaches 50～70m.
(2) change position, 1 layer, Gao Chou lane: Wei Shigaochou lane can play a role at the working face extraction initial stage, while remaining Lm in construction Gao Chou lane apart from open-off cut 4 horizontal ranges, start to become slope.The layer position in Ba Gaochou lane is adjusted in coal seam caving zone 6 by original being arranged in cracks in coal seam band 7, is about to Gao Chou lane leading portion Lm and is arranged in inbreak 6.
(3) construction layer-through drilling 5: in front end LmGao Chou lane, every 10m, a drill site is set, under 3～5 of each constructions to layer-through drilling 5, boring Cong Gaochou lane 1 penetrates work plane coal seam downwards and reaches base plate.
(4) artificial overhead caving: at once artificial overhead caving after working face mining, destroy in advance the integrality of top board, make it produce crack, be caving as early as possible, form the gas pumping passage between Yu Gaochou lane; Top board during first weighting is implemented effectively to control simultaneously, to reduce First Weighting Interval of Main, make work plane at stoping period, no longer be subject to the serious threat of tight roof.
Claims (6)
1. a mining face Gao Chou lane gas pumping method at the beginning of, is characterized by: comprise the steps: that (1) determine that breaking down for the first time step pitch is L rice; (2) when construction Gao Chou lane is apart from open-off cut horizontal range residue L rice, start to become slope, the layer position in Jiang Gaochou lane is adjusted into coal seam caving zone by cracks in coal seam band; (3) in front end L meter Gao Chou lane, every same distance, a drill site is set, in each drill site construction under to layer-through drilling, layer-through drilling Cong Gaochou lane penetrates work plane coal seam downwards and reaches base plate; (4) artificial overhead caving at once after working face mining, destroys the integrality of top board in advance, forms the gas pumping passage between Yu Gaochou lane, reduces First Weighting Interval of Main simultaneously.
2. just mining face Gao Chou lane according to claim 1 gas pumping method, is characterized in that: in step (1), L is 10-70.
3. just mining face Gao Chou according to claim 1 lane gas pumping method, is characterized in that: in step (2), the height of cracks in coal seam band and coal seam caving zone is according to coal seam and overlying rock character or determine with reference to contiguous work plane actual range.
4. just mining face Gao Chou according to claim 1 lane gas pumping method, it is characterized in that: in step (3), in front end L meter Gao Chou lane, every 10m, a drill site is set, under the 3-5 of constructing in each drill site to layer-through drilling, and penetrate work plane coal seam and reach base plate.
5. just mining face Gao Chou lane according to claim 1 gas pumping method, is characterized in that: in step (4), caving mode is explosion or mechanical system.
6. just mining face Gao Chou lane according to claim 2 gas pumping method, is characterized in that: in step (1), L is 10-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303219.9A CN104074538B (en) | 2014-06-30 | 2014-06-30 | A kind of just mining face suction road gas pumping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303219.9A CN104074538B (en) | 2014-06-30 | 2014-06-30 | A kind of just mining face suction road gas pumping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074538A true CN104074538A (en) | 2014-10-01 |
| CN104074538B CN104074538B (en) | 2016-10-05 |
Family
ID=51596104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410303219.9A Active CN104074538B (en) | 2014-06-30 | 2014-06-30 | A kind of just mining face suction road gas pumping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074538B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481578A (en) * | 2014-11-27 | 2015-04-01 | 辽宁工程技术大学 | Gas control method for large-mining-height working face of high gas coal seam |
| CN105697054A (en) * | 2016-04-12 | 2016-06-22 | 安徽理工大学 | Mode of arranging high-gas coal seam high dip tunnel for drawing out gas and gas extraction method |
| CN107120137A (en) * | 2017-07-12 | 2017-09-01 | 安徽理工大学 | A kind of coal roadway tunneling is along seat earth Deephole pre-splitting blasting pumping method |
| CN108104815A (en) * | 2017-12-27 | 2018-06-01 | 孟思思 | Huge thickness hard coal seam unloading pressure by blasting draws out methane Sub-Level Caving coal-mining method |
| CN109973140A (en) * | 2019-04-11 | 2019-07-05 | 河南理工大学 | A kind of first mining height effect gas pumping method of high prominent mine large-mining-height working surface |
| CN111287787A (en) * | 2020-03-20 | 2020-06-16 | 华北科技学院 | Method for efficiently pumping and discharging gas through top plate crack expansion |
| CN111828083A (en) * | 2020-07-31 | 2020-10-27 | 中国矿业大学(北京) | Gas extraction method for single coal seam |
| CN112127939A (en) * | 2020-08-28 | 2020-12-25 | 晋城蓝焰煤业股份有限公司 | Gas control method during initial mining period of coal face |
| CN114575791A (en) * | 2022-03-02 | 2022-06-03 | 淮南矿业(集团)有限责任公司 | Structure and process for extracting gas of lower protective layer through high-position high-extraction roadway and downward drilling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117894A (en) * | 2007-08-24 | 2008-02-06 | 阳泉煤业（集团）有限责任公司 | Fully mechanized coal face high suction tunnel lower-returning drilling primary mining gas drainage method |
| CN101182783A (en) * | 2007-10-25 | 2008-05-21 | 阳泉煤业（集团）有限责任公司 | Method of combined mining caving face using false dipping after high drainage roadway treating gas in beginning mining |
| CN101275469A (en) * | 2008-05-12 | 2008-10-01 | 淮南矿业(集团)有限责任公司 | Yolk coal rock formation downward hole pumping and mining pressure relief mash gas construction method |
| CN102635395A (en) * | 2012-05-10 | 2012-08-15 | 中国矿业大学 | Method for governing gas ultralimit during initial mining stage of coal mine working face |
| CN103016047A (en) * | 2012-12-20 | 2013-04-03 | 大同煤矿集团有限责任公司 | Method of draining gas in gob through long drill hole in roof trend on fully mechanized caving face |
-
2014
- 2014-06-30 CN CN201410303219.9A patent/CN104074538B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117894A (en) * | 2007-08-24 | 2008-02-06 | 阳泉煤业（集团）有限责任公司 | Fully mechanized coal face high suction tunnel lower-returning drilling primary mining gas drainage method |
| CN101182783A (en) * | 2007-10-25 | 2008-05-21 | 阳泉煤业（集团）有限责任公司 | Method of combined mining caving face using false dipping after high drainage roadway treating gas in beginning mining |
| CN101275469A (en) * | 2008-05-12 | 2008-10-01 | 淮南矿业(集团)有限责任公司 | Yolk coal rock formation downward hole pumping and mining pressure relief mash gas construction method |
| CN102635395A (en) * | 2012-05-10 | 2012-08-15 | 中国矿业大学 | Method for governing gas ultralimit during initial mining stage of coal mine working face |
| CN103016047A (en) * | 2012-12-20 | 2013-04-03 | 大同煤矿集团有限责任公司 | Method of draining gas in gob through long drill hole in roof trend on fully mechanized caving face |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481578A (en) * | 2014-11-27 | 2015-04-01 | 辽宁工程技术大学 | Gas control method for large-mining-height working face of high gas coal seam |
| CN105697054A (en) * | 2016-04-12 | 2016-06-22 | 安徽理工大学 | Mode of arranging high-gas coal seam high dip tunnel for drawing out gas and gas extraction method |
| CN107120137A (en) * | 2017-07-12 | 2017-09-01 | 安徽理工大学 | A kind of coal roadway tunneling is along seat earth Deephole pre-splitting blasting pumping method |
| CN107120137B (en) * | 2017-07-12 | 2019-03-15 | 安徽理工大学 | A kind of coal roadway tunneling is along seat earth Deephole pre-splitting blasting pumping method |
| CN108104815A (en) * | 2017-12-27 | 2018-06-01 | 孟思思 | Huge thickness hard coal seam unloading pressure by blasting draws out methane Sub-Level Caving coal-mining method |
| CN109973140A (en) * | 2019-04-11 | 2019-07-05 | 河南理工大学 | A kind of first mining height effect gas pumping method of high prominent mine large-mining-height working surface |
| CN111287787A (en) * | 2020-03-20 | 2020-06-16 | 华北科技学院 | Method for efficiently pumping and discharging gas through top plate crack expansion |
| CN111828083A (en) * | 2020-07-31 | 2020-10-27 | 中国矿业大学(北京) | Gas extraction method for single coal seam |
| CN112127939A (en) * | 2020-08-28 | 2020-12-25 | 晋城蓝焰煤业股份有限公司 | Gas control method during initial mining period of coal face |
| CN112127939B (en) * | 2020-08-28 | 2023-12-05 | 晋城蓝焰煤业股份有限公司 | Gas control method for initial mining period of coal face |
| CN114575791A (en) * | 2022-03-02 | 2022-06-03 | 淮南矿业(集团)有限责任公司 | Structure and process for extracting gas of lower protective layer through high-position high-extraction roadway and downward drilling |
| CN114575791B (en) * | 2022-03-02 | 2024-04-16 | 淮南矿业(集团)有限责任公司 | Structure and process for extracting gas from lower protective layer of high-level high-drainage roadway and downward drilling hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104074538B (en) | 2016-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104074538B (en) | A kind of just mining face suction road gas pumping method | |
| WO2018201706A1 (en) | Method for efficient gas drainage in coal roadway strips and regional outburst elimination through staged fracturing with long borehole floor beddings | |
| CN111042791B (en) | Combined coal and coal bed gas co-production method for upper and lower wells of low-permeability coal bed group | |
| CN103016047B (en) | Method of draining gas in gob through long drill hole in roof trend on fully mechanized caving face | |
| CN102383828A (en) | Refection reducing and outburst eliminating method for deep-hole hydraulic fracture driving gas shallow hole extraction | |
| CN106869966B (en) | A kind of method for blocking of absciss layer water supply source | |
| CN113404535B (en) | Method for preventing rock burst by hydraulic fracturing of coal mine underground | |
| CN109519211B (en) | Method for extracting gas in mining area by using pre-extraction coal bed gas ground well | |
| CN104712358A (en) | Coal seam group with high gas content pressure relief and co-mining method based on gob-side entry retaining of working face of first mining total rock pressure relief | |
| CN103498680B (en) | Improve the method for fully mechanized coal face period of beginning mining top-coal recovery rate | |
| CN102644476B (en) | Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel | |
| CN112593936B (en) | Advanced comprehensive control method for multi-disaster area of deep mine | |
| CN109236297B (en) | Coal mining method for remaining coal seam in residual mining area of cracking and filling combined ascending re-mining cutter column | |
| CN108661641A (en) | A method of preventing crossheading goaf top outstanding over long distances based on top release is cut | |
| CN102409997A (en) | Curtain grouting anti-burst method for cutting through coal and gas bursting seam in shaft | |
| CN105134286B (en) | L-type well goaf gas pumping method | |
| CN105089493B (en) | Ground vertical well combines pressure released seam gas pumping method with underground layer-through drilling | |
| CN104763466B (en) | Method for detecting active diffusion radius of covered rock separation grouting filling slurry | |
| CN110067592B (en) | Roof gas cooperative control method based on hard roof ground fracturing | |
| CN105240046A (en) | Drill hole layout method for gas extraction during primary mining and stoping of large mining height fully-mechanized face | |
| CN104806285A (en) | Coal mine goaf gas control method based on ground horizontal well | |
| CN105927269A (en) | Gas control method of outburst coal seam | |
| AU2016370451A1 (en) | Method for determining length of filling section of fully mechanized coal mining-filling mixed mining working face | |
| CN109751075A (en) | Middle hard coal seam concordant drilling gas administering method | |
| CN111520183A (en) | Method for treating gas generated by mining, blasting, roof cutting, pressure relief and permeability improvement of coal seam group under thick-layer sandstone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250000 No. 141 Dikou Road, Tianqiao District, Jinan City, Shandong Province Patentee after: General Technology Group Engineering Design Co., Ltd. Address before: 250000 No. 141 Dikou Road, Tianqiao District, Jinan City, Shandong Province Patentee before: Coal Industry Jinan Design & Research Co., Ltd. |