CN105863638A - Method for controlling abnormal gushing of rock burst inclination coal bed gas - Google Patents
Method for controlling abnormal gushing of rock burst inclination coal bed gas Download PDFInfo
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- CN105863638A CN105863638A CN201610290182.XA CN201610290182A CN105863638A CN 105863638 A CN105863638 A CN 105863638A CN 201610290182 A CN201610290182 A CN 201610290182A CN 105863638 A CN105863638 A CN 105863638A
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000003245 coal Substances 0.000 title claims abstract description 35
- 239000011435 rock Substances 0.000 title claims abstract description 24
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 31
- 238000005553 drilling Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 42
- 238000005086 pumping Methods 0.000 claims description 35
- 238000005065 mining Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000012549 training Methods 0.000 claims description 3
- 230000010415 tropism Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000003795 desorption Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 231100001261 hazardous Toxicity 0.000 description 5
- 230000035939 shock Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010454 slate Substances 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- 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)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a method for controlling abnormal gushing of rock burst inclination coal bed gas. The method comprises the steps of conducting seismic exploration, conducting geologic survey to predict a burst inclination area and conducting gas extraction when no rock burst inclination exists; the method is characterized in that when rock burst inclination exists, rock burst dangerous areas are further predicted through a drilling cutting method and micro-seismic monitoring, dangerousness of rock burst is determined, when the standard is not reached, rock burst control is conducted, after the standard is reached, gas extraction is conducted, effect verification is conducted through gas extraction, when it is verified that the standard is not reached, gas extraction is continued to be conducted, after the standard is reached, safety protection measures are implemented, then normal production is conducted, and a next cycle process is started. Comprehensive control over rock burst and gas is conducted, the situation that the rock burst critical condition is reduced by coal bed gas desorption and expansion is prevented, the occurrence times and energy of power phenomena in the extraction process are reduced, and compound disasters are controlled.
Description
Technical field
The present invention relates to coal mine rock burst and coal-bed gas administering method, gush particularly to bump tendency coal-bed gas is abnormal
Go out administering method.
Background technology
Adopting of recent year colliery increases with the speed of annual 20～25m deeply, by crustal stress, coal seam character, gas bearing spy
The impact levied, Rock Burst tendentiousness and outburst coal mass danger are also being gradually increased, and bump meets certain
Often induce outburst coal mass during condition, even cause Gas Outburst, have a strong impact on mine safety production.
Both at home and abroad bump is administered and mine gas prevention and control has all carried out substantial amounts of research, propose multiple by reducing coal seam
Elastic can and stress transfer peak value administer the measure of bump, such as coal-bed flooding, large diameter borehole release, presplit blasting etc.,
More theoretical result and technical measures be also form for gas control.And rock burst coal seam outburst coal mass returns with normal
Mash gas is gushed out and is compared, and due to affected by many factors, bump and gas form compound disaster, individually enter one of them
Row is administered, and effect is poor, it is necessary to carry out comprehensive control in the case of grasping two-way interaction's rule.
Summary of the invention
It is an object of the invention to for the bump gaseous mine difficulty of governance gradually increased big, single administering method can not play
A well difficult problem for effect, it is provided that a kind of by research bump and outburst coal mass pests occurrence rule, and then administer impact
The comprehensive treatment scheme of coal-bed gas Abnormal Methane Emission under the conditions of ground pressure.
The technical solution used in the present invention is: a kind of bump tendency coal-bed gas Abnormal Methane Emission administering method, surveys including earthquake
Visit, burst trend region is predicted in geological survey, carries out gas pumping without bump when being inclined to, and feature is: have bump
Further with drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap during tendency, determine that bump is dangerous, during without danger,
Carry out gas pumping, time dangerous, carry out bump improvement, bump is administered and carries out validity check, time the most up to standard again
Carry out bump improvement, up to standard after carry out gas pumping, gas pumping is carried out validity check, continue when checking the most up to standard into
Row gas pumping, up to standard after, implement after safety prevention measure, normally produce, enter subsequent cycle process.
Wherein: seismic prospecting, geological survey prediction burst trend region for prepare construction area carry out, find out big fold or
Fault tectonic, assert that this region has bump to be inclined to, with entering coal seam, Roof rock feature are tested, according to coal seam, top
Slate layer Burst Tendency index determine tendentious with or without, strong and weak.
Wherein: drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap are carried out for work surface, and drilling cuttings method unit length is bored
Hole ickings amount marginal value M determines, micro seismic monitoring method microseism threshold amount of energy determines, may also include stress monitoring method, with setting
The initial early warning value of work surface determine.
Wherein: determine when having bump danger, carry out bump improvement, both used coal-bed flooding, large diameter borehole to unload
Pressure, drillhole blasting pressure relief method, control risk factor administer, also include optimize production distribution, Mining Protective Seam release,
Select suitable support pattern, when determining without bump danger, carry out gas pumping, both used Gas Drainage With High Position Drilling,
And draw out methane at goaf pipe laying.
Wherein: bump administer after by drilling cuttings method, micro seismic monitoring method, that stress monitoring method carries out validity check is the most up to standard the most again
Carry out bump improvement, until after up to standard, carrying out gas pumping, and gas pumping is carried out validity check, i.e. to work surface
Gas, return air gas density are monitored, and gas exceeds standard, the most up to standard, and continuation gas pumping, until gas does not exceeds standard, i.e. reaches
After mark, carry out safety prevention measure enforcement, i.e. follow the tracks of Bumping Pressure in Coal Layers index, strengthening supporting, gas-monitoring, individual protection,
Safety training.
The beneficial effects of the present invention is: define premised on prediction, solving danger damping is means, and mash gas extraction is basic,
Validity check is crucial, and security protection is low concentration gas Treatment process system under the conditions of " six one " bump ensured,
Achieve bump improvement integrated with comprehensive gas, reduce coal-bed gas pressure, it is therefore prevented that coal-bed gas desorbing expands and liquidates
Press the reduction of critical condition with hitting, make the dynamic phenomenon frequency in exploitation process and energy reduce, control bump with
The compound disaster that gas is formed.
Accompanying drawing explanation
Fig. 1 FB(flow block) of the present invention.
Detailed description of the invention
First embodiment
See Fig. 1, a kind of bump tendency coal-bed gas Abnormal Methane Emission administering method, pre-including seismic prospecting, geological survey
Surveying burst trend region, carry out gas pumping when being inclined to without bump, feature is: have bump to use further when being inclined to
Drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap, determine that bump is dangerous, without, time dangerous, carrying out gas pumping,
Time dangerous, carry out bump improvement, bump is administered and carries out validity check, carry out bump time the most up to standard again and control
Reason, up to standard after carry out gas pumping, gas pumping is carried out validity check, proceeds gas pumping when checking the most up to standard, reach
After mark, after implementing safety prevention measure, normally produce, enter subsequent cycle process.
Second embodiment
See Fig. 1, for certain ore deposit 5304 working face extraction utilizes a kind of bump tendency coal-bed gas Abnormal Methane Emission improvement side
Method, including seismic prospecting, geological survey prediction burst trend region, carries out gas pumping without bump when being inclined to, feature exists
In: further with drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap when having bump to be inclined to, determine that bump is endangered
Dangerous, without, time dangerous, carrying out gas pumping, time dangerous, carry out bump improvement, bump is administered and carries out effect
Inspection, carries out bump improvement again time the most up to standard, up to standard after carry out gas pumping, gas pumping is carried out validity check, inspection
Proceed gas pumping when testing the most up to standard, up to standard after, after implementing safety prevention measure, normally produce, enter subsequent cycle mistake
Journey.
Wherein: seismic prospecting, geological survey prediction burst trend region for prepare construction area carry out, find out big fold or
Fault tectonic, assert that this region has bump to be inclined to, coal seam, Roof rock feature are tested simultaneously, according to coal seam, top
Slate layer Burst Tendency index determines tendentiousness classification and the presence or absence of burst trend, power.Specifically coal seam, roof strata are entered
Row test, according to table 1 coal, roof strata Burst Tendency index and classification, determines the presence or absence of burst trend, power, index
Acquisition be measured obtaining rock sample, coal sample by electro-hydraulic servo testing machine, for and index contrast in table 1, for coal
When 4 measured values of index conflict, use fuzzy comprehensive evaluation method, the weight of 4 indexes in order be respectively 0.3,0.2,
0.2、0.3。
Table 1 coal, roof strata Burst Tendency index and classification
Finding after investigating certain ore deposit geological structure, this ore deposit fold, tomography are multiple, and near its 5304 work surface, tomography has 15
Bar, when near Faults carries out operation, easily causes bump.The mining coal seam test of 5304 work surface institutes is shown that uniaxial compressive is strong
Spend higher, average out to 19.25MPa；The meansigma methods of dynamic destruction time is 72ms；Elastic energy index test average out to 13.17；
Impact energy index testing mean is 2.39.According to 4 index each characteristics, it is determined that this coal seam belongs to Group III, there is strong punching
Hit tendentious coal seam.Top board be respectively layered flexional index and for 24.25kJ, this top board has weak burst trend, the most really
Fixed 5304 work surfaces are for having burst trend region.Drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap should be carried out.
Wherein: drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap are carried out for work surface, and drilling cuttings method unit length is bored
Hole ickings amount marginal value M determines, micro seismic monitoring method microseism threshold amount of energy determines, may also include stress monitoring method, with setting
The initial early warning value of work surface determine.When concrete drilling cuttings method determines shock hazard, unit length boring ickings amount marginal value is by formula
(1) determine, think more than M value and have bump dangerous, actual measurement unit length boring ickings amount > M value, there is bump to endanger
Danger.
In formula: the density of γ coal；A boring radius；σcThe uniaxial compressive strength of coal；E coal body elastic modelling quantity；
Modulus drops in λ；β effecive porosity； Internal friction angle；PiGas pressure at hole wall.
Micro seismic monitoring method determines that shock hazard standard is whether microseism energy is more than 1 × 104J.Measured value > 1 × 104J, has impact ground
Pressure danger.
Stress monitoring method determines that shock hazard standard is with reference to table 2:
The initial early warning value of table 2 work surface is arranged
In exploitation process, 5304 work surfaces are carried out bump deathtrap and are predicted, coal powder quantity of bore exceed standard situation occur 5 times；
Microseismic event energy magnitude concentrates on 102～103J, primary energy high value is 2.8 × 104J；Stress monitoring value is in 10MPa more
Below.Comprehensive monitoring result, 5304 stopes are marked off general danger of burst district at 2, moderate blow hazardous area at 8,
Height Impact hazardous area at 8.Bump hazardous area should be administered.
Wherein: determine when having bump danger, carry out bump improvement, both used coal-bed flooding, large diameter borehole,
Drillhole blasting pressure relief method, control risk factor are administered, and also include optimizing production distribution, Mining Protective Seam release, selection
Suitably support pattern, when determining without bump danger, carries out gas pumping, had both used Gas Drainage With High Position Drilling, and
In goaf, pipe laying draws out methane.Specifically bump hazardous area should be administered, bore including using coal-bed flooding, major diameter
Work surface bump is administered by hole, drillhole blasting release mode.
Coal-bed flooding boring aperture 76mm, spacing of wells 30m, water injection pressure 10～15MPa, single hole water injection rate 600m3。
Deathtrap is pressed to use the large diameter borehole unloading pressure means in 150mm aperture, the area of stress concentration spacing of wells normal impact
0.8m, hole depth 20m；Height Impact hazardous area spacing of wells 1.6m, hole depth 20m；General danger of burst district spacing of wells 2.4m,
Hole depth 18m.
HI high impact fatalness region in local is carried out drillhole blasting unloading pressure means, the single layout of borehole, spacing 5m, hole depth 8～10m,
Explosive uses three grades of emulsions of allowed for use in coal mines, powder stick specification φ 27mm × 300mm × 200g, uses forward continuous charging quick-fried
Broken, fill volume 13 explosives, loaded length 3.9m altogether.
Wherein: bump carries out validity check by drilling cuttings method, micro seismic monitoring method, stress monitoring method after administering, the most up to standard, weighs
Newly carry out bump improvement, until after up to standard, carrying out gas pumping, and gas pumping is carried out validity check, i.e. to work
Face gas, return air gas density are monitored, and gas exceeds standard, the most up to standard, and continuation gas pumping is not until gas exceeds standard, i.e.
After up to standard, carrying out safety prevention measure enforcement, i.e. follow the tracks of Bumping Pressure in Coal Layers index, strengthening supporting, gas-monitoring, individuality are anti-
Protect, safety training.Pressing governance for reaching standard region the most over the ground and without bump deathtrap, mining in advance work surface 100m enters
Row Gas Drainage With High Position Drilling, and draw out methane at goaf pipe laying.High Position Drilling hole at end point height is 6 times of work surface mining heights,
Whole hole spot projection falls at 3 times of mining heights of front row hole drilling, and boring is arranged in sector, and covering maximum magnitude is the 1/3 of face length.
The most specifically being monitored Bumping Pressure in Coal Layers index and work surface, return air gas density, ensure safety back production, by the end of 2015 simultaneously
On May 11, in, work surface safety coal extraction 1112m.
Claims (9)
1. a bump tendency coal-bed gas Abnormal Methane Emission administering method, inclines including seismic prospecting, geological survey prediction impact
To region, carry out gas pumping when being inclined to without bump, be characterised by: when having bump to be inclined to further with drilling cuttings method,
Micro seismic monitoring predicting rock burst deathtrap, determines that bump is dangerous, without, time dangerous, carrying out gas pumping, dangerous
Time, carry out bump improvement, bump is administered and carries out validity check, carry out bump improvement time the most up to standard again, reach
Carry out gas pumping after mark, gas pumping carried out validity check, when checking the most up to standard, proceed gas pumping, up to standard after,
After implementing safety prevention measure, normally produce, enter subsequent cycle process.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 1, it is characterised in that:
Seismic prospecting, geological survey prediction burst trend region are carried out for preparing construction area, find out big fold or fault tectonic,
Assert that this region has bump to be inclined to, with entering coal seam, Roof rock feature are tested, incline according to coal seam, roof strata impact
Tropism index determine tendentious with or without, strong and weak.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 1, it is characterised in that:
Drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap are carried out for work surface, and drilling cuttings method unit length boring ickings amount is faced
Dividing value M determines, micro seismic monitoring method microseism threshold amount of energy determines, may also include stress monitoring method, at the beginning of the work surface arranged
Beginning early warning value determines.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 1, it is characterised in that:
Determine when having bump danger, carry out bump improvement, both used coal-bed flooding, large diameter borehole release, hole quick-fried
Broken pressure relief method, control risk factor are administered, and also include optimizing production distribution, Mining Protective Seam release, selecting suitably
Support pattern, when determining without bump danger, carries out gas pumping, had both used Gas Drainage With High Position Drilling, and mined out
District's pipe laying draws out methane.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 2, it is characterised in that:
Drilling cuttings method, micro seismic monitoring predicting rock burst deathtrap are carried out for work surface, and drilling cuttings method unit length boring ickings amount is faced
Dividing value M determines, micro seismic monitoring method microseism threshold amount of energy determines, may also include stress monitoring method, at the beginning of the work surface arranged
Beginning early warning value determines.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 2, it is characterised in that:
Determine when having bump danger, carry out bump improvement, both used coal-bed flooding, large diameter borehole release, hole quick-fried
Broken pressure relief method, control risk factor are administered, and also include optimizing production distribution, Mining Protective Seam release, selecting suitably
Support pattern, when determining without bump danger, carries out gas pumping, had both used Gas Drainage With High Position Drilling, and mined out
District's pipe laying draws out methane.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 3, it is characterised in that:
Determine when having bump danger, carry out bump improvement, both used coal-bed flooding, large diameter borehole release, hole quick-fried
Broken pressure relief method, control risk factor are administered, and also include optimizing production distribution, Mining Protective Seam release, selecting suitably
Support pattern, when determining without bump danger, carries out gas pumping, had both used Gas Drainage With High Position Drilling, and mined out
District's pipe laying draws out methane.
A kind of bump tendency coal-bed gas Abnormal Methane Emission administering method the most according to claim 5, it is characterised in that:
Determine when having bump danger, carry out bump improvement, both used coal-bed flooding, large diameter borehole release, hole quick-fried
Broken pressure relief method, control risk factor are administered, and also include optimizing production distribution, Mining Protective Seam release, selecting suitably
Support pattern, when determining without bump danger, carries out gas pumping, had both used Gas Drainage With High Position Drilling, and mined out
District's pipe laying draws out methane.
9. according to the arbitrary described a kind of bump tendency coal-bed gas Abnormal Methane Emission administering method of claim 1-8, its feature
Be: bump administer after by drilling cuttings method, micro seismic monitoring method, that stress monitoring method carries out validity check is the most up to standard, re-start
Bump administer, until after up to standard, carrying out gas pumping, and gas pumping carried out validity check, i.e. to face gas,
Return air gas density is monitored, and gas exceeds standard, the most up to standard, continue gas pumping until gas does not exceeds standard, the most up to standard after,
Carry out safety prevention measure enforcement, i.e. follow the tracks of Bumping Pressure in Coal Layers index, strengthening supporting, gas-monitoring, individual protection, safety
Training.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401588A (en) * | 2016-10-20 | 2017-02-15 | 山东科技大学 | Method for preventing and treating rock burst during exploiting of working face in fault zone |
| CN108594295A (en) * | 2018-05-31 | 2018-09-28 | 天地科技股份有限公司 | A kind of coal seam unloading pressure by blasting effect evaluation method |
| CN110005413A (en) * | 2019-04-16 | 2019-07-12 | 中国矿业大学 | Driving face coal combines control method with gas protrusion and dynamic impact problem disaster |
| CN110645039A (en) * | 2019-10-29 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Comprehensive control method for rock burst and gas composite disaster of thick and hard roof |
| CN110821550A (en) * | 2019-10-09 | 2020-02-21 | 山西潞安环保能源开发股份有限公司 | Coal roadway gas drainage method |
| CN110836114A (en) * | 2019-11-21 | 2020-02-25 | 中煤科工集团重庆研究院有限公司 | Method for treating coal mine rock burst and gas composite disaster |
| CN110905508A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Roadway anti-scour method for artificially manufacturing differential medium laminar flow |
| CN110905596A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Hard roof type rock burst prevention and treatment method based on change of medium properties |
| CN112483090A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | Method for preventing and controlling rock burst under three-dimensional coal pillar |
| CN113847093A (en) * | 2021-10-22 | 2021-12-28 | 江苏徐矿能源股份有限公司张双楼煤矿 | Rock burst prevention and control method |
| CN114320459A (en) * | 2022-03-14 | 2022-04-12 | 中国矿业大学(北京) | Mine dynamic disaster classification control method |
| CN114352277A (en) * | 2022-01-18 | 2022-04-15 | 辽宁工程技术大学 | Coal mine composite power disaster prevention and control method based on controllable shock waves |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401588B (en) * | 2016-10-20 | 2019-05-17 | 山东科技大学 | Bump preventing control method during fault zone inner working face is exploited |
| CN106401588A (en) * | 2016-10-20 | 2017-02-15 | 山东科技大学 | Method for preventing and treating rock burst during exploiting of working face in fault zone |
| CN108594295A (en) * | 2018-05-31 | 2018-09-28 | 天地科技股份有限公司 | A kind of coal seam unloading pressure by blasting effect evaluation method |
| CN108594295B (en) * | 2018-05-31 | 2019-12-17 | 天地科技股份有限公司 | Method for evaluating coal bed blasting pressure relief effect |
| CN110005413B (en) * | 2019-04-16 | 2020-07-31 | 中国矿业大学 | Combined prevention and control method for coal and gas outburst and impact power disaster of driving face |
| CN110005413A (en) * | 2019-04-16 | 2019-07-12 | 中国矿业大学 | Driving face coal combines control method with gas protrusion and dynamic impact problem disaster |
| CN110821550A (en) * | 2019-10-09 | 2020-02-21 | 山西潞安环保能源开发股份有限公司 | Coal roadway gas drainage method |
| CN110645039A (en) * | 2019-10-29 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Comprehensive control method for rock burst and gas composite disaster of thick and hard roof |
| CN110836114A (en) * | 2019-11-21 | 2020-02-25 | 中煤科工集团重庆研究院有限公司 | Method for treating coal mine rock burst and gas composite disaster |
| CN110905508A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Roadway anti-scour method for artificially manufacturing differential medium laminar flow |
| CN110905596A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Hard roof type rock burst prevention and treatment method based on change of medium properties |
| CN112483090A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | Method for preventing and controlling rock burst under three-dimensional coal pillar |
| CN113847093A (en) * | 2021-10-22 | 2021-12-28 | 江苏徐矿能源股份有限公司张双楼煤矿 | Rock burst prevention and control method |
| CN114352277A (en) * | 2022-01-18 | 2022-04-15 | 辽宁工程技术大学 | Coal mine composite power disaster prevention and control method based on controllable shock waves |
| CN114352277B (en) * | 2022-01-18 | 2024-02-13 | 辽宁工程技术大学 | Coal mine composite dynamic disaster prevention and control method based on controllable shock waves |
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