CN108798786A - A kind of neutron radiation monitoring method for early warning of underground coal Instability of Rock Body dynamic disaster - Google Patents
A kind of neutron radiation monitoring method for early warning of underground coal Instability of Rock Body dynamic disaster Download PDFInfo
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- CN108798786A CN108798786A CN201810781629.2A CN201810781629A CN108798786A CN 108798786 A CN108798786 A CN 108798786A CN 201810781629 A CN201810781629 A CN 201810781629A CN 108798786 A CN108798786 A CN 108798786A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 104
- 239000003245 coal Substances 0.000 title claims abstract description 40
- 230000005855 radiation Effects 0.000 title claims abstract description 28
- 239000011435 rock Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000006854 communication Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000003094 perturbing effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
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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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Measurement Of Radiation (AREA)
Abstract
The present invention is intended to provide a kind of neutron radiation monitoring method for early warning of underground coal Instability of Rock Body dynamic disaster, its equipment composition includes neutron radiation monitoring instrument, underground monitoring substation, underground monitoring host, ground monitoring host, ground data handles host, neutron radiation monitoring instrument is arranged in the digging laneway of mine, headentry, on the monitoring point of tailentry and coal working face, underground monitoring substation is arranged in the adjacent assistant conveyance lane (air inlet) in monitoring point, underground monitoring host is mounted in shaft station, ground monitoring host and the installation of ground data processing host are on the ground, above equipment is connected by signal cable, it is operated according to the step of operational flowchart, it is finally reached and accurately coal and rock rupture unstability is carried out sentencing knowledge early warning, and it is fast to sentence knowledge early warning speed, the purpose of strong applicability.
Description
Technical field
The present invention relates in mine safety monitoring technical field more particularly to a kind of underground coal Instability of Rock Body dynamic disaster
Sub- Radiation monitoring method for early warning.
Background technology
In recent years, with the steady increase of demand for energy, mining depth is continuously increased, the coal petrographys such as rock burst, bump
Unstability dynamic disaster takes place frequently, and seriously constrains the safety and high-efficiency mining of underground engineering.The essence of coal petrography unstability dynamic disaster is
The rupture unstability of coal and rock medium.Currently, both at home and abroad mainly using geophysicses such as micro-seismic method, acoustic-emission and electromagnetic radiation methods
Method carries out the monitoring and warning of coal rock dynamic disaster, and has developed many relevant monitoring and warning systems.
However, in underground coal mine application, microseism and sound emission monitoring technology are since stress wave is in coal and rock communication process
In interference and decaying it is more serious, leading to its positioning accuracy, it is still necessary to further increase；Electromagnetic radiation monitoring technology is not due to having
Determining forecasting criterion makes its application be restricted.In view of the deficiency of above-mentioned monitoring technology, a kind of new monitoring and warning side is needed
Method not only accurately can carry out sentencing knowledge early warning to coal and rock rupture unstability, and sentence and know that early warning speed is fast, strong applicability.
Invention content
The present invention is intended to provide a kind of neutron radiation monitoring method for early warning of underground coal Instability of Rock Body dynamic disaster, reaches accurate
Really coal and rock rupture unstability is carried out sentencing knowledge early warning, and sentences and know that early warning speed is fast, purpose of strong applicability.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of neutron radiation monitoring early warning system of underground coal Instability of Rock Body dynamic disaster, including neutron radiation monitoring instrument,
Underground monitoring substation, underground monitoring host, ground monitoring host, ground data handle host.The neutron radiation monitoring instrument cloth
On the monitoring point for setting the digging laneway in mine, headentry, tailentry and coal working face, the underground prison
It surveys substation to be arranged in the adjacent assistant conveyance lane (air inlet) in monitoring point, the underground monitoring host is mounted on shaft station
Interior, the ground monitoring host and the installation of ground data processing host are on the ground.
Preferably, neutron radiation monitoring instrument is connect with underground monitoring substation, and underground monitoring substation connects with underground monitoring host
It connects, underground monitoring host is connect with ground monitoring host, and ground monitoring host is connect with ground data processing host, above equipment
It is connected by signal cable.
Preferably, neutron radiation monitoring instrument is made of neutron irradiation probe and neutron survey meter host.
Preferably, the phase arranged in the digging laneway of mine, headentry, tailentry and coal working face
The spacing of adjacent monitoring point is 20 meters.
The advantageous effect of the present invention compared to the prior art is：
(1) since neutron has stronger penetration power, traditional microseism (sound emission) and electromagnetism are replaced using neutron irradiation
Radiotechnology, monitoring range is wider, and applicability is stronger；
(2) digital monitoring is used, neutron irradiation dosage acquisition is carried out in real time by monitoring system terminal, avoids error
While accumulative, make monitoring safety higher；
(3) it dynamic acquisition can be gone forward side by side in real time by the coal petrography internal rupture precursor information within the scope of back production, driving disturbing influence
Row data processing and analysis, thin sight deformation behaviour macro to coal and rock are monitored judge, more comprehensively understand and grasp back production, driving
Coal and rock dynamic deformation process in perturbing area；
(4) it is compared, is divided to entirely monitoring region, and to danger area by monitoring data and the analysis of Alert Standard value
Domain carries out grading forewarning system, escorts from the coal petrographys unstability dynamic disaster such as rock burst, bump for Safety of Coal Mine Production.
In conclusion reasonable design of the present invention, operability is strong, can have in the case where considering various complicated geological environments
Effect realization underground coal Instability of Rock Body dynamic disaster sentences knowledge early warning, and more dynamic realtime, accurate safety, science is convenient.
Description of the drawings
Fig. 1 is the neutron radiation monitoring early warning system functional block diagram of underground coal Instability of Rock Body dynamic disaster of the present invention；
Fig. 2 be it is of the present invention and monitoring and pre-alarming method flow chart；
Fig. 3 is that an embodiment of the present invention arranges monitoring point (in digging laneway, headentry, working face return air
Lane and coal working face are respectively arranged for monitoring point) schematic diagram；
Fig. 4 is neutron irradiation dosage-time distribution curve exemplary plot of the present invention.
In figure：1-ground data handles host；2-ground monitoring hosts；3-underground monitoring hosts；4-underground monitorings
Substation；5-neutron survey meter hosts；6-neutron irradiations are popped one's head in；7-signal cables；8-neutron radiation monitoring instrument；9-work
Face transportation roadway；10-tailentries；11-coal working faces；12-digging laneways；13-assistant conveyance lanes (air inlet).
Specific implementation mode
The present invention is described further below, but protection scope of the present invention is not limited to specific reality discussed below
Apply the range of mode.
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of pre- police of neutron radiation monitoring of underground coal Instability of Rock Body dynamic disaster
Method includes the following steps：
(1) monitoring point is arranged：It is respectively arranged prison in headentry 9, tailentry 10 and coal working face 11
Measuring point, or monitoring point is arranged in digging laneway 12, wherein the spacing of monitoring point is 20 meters；
(2) monitoring device is installed：Neutron radiation monitoring instrument 8 is installed respectively in each monitoring point, neutron irradiation detector 8 by
6 composition of neutron survey meter host 5 and neutron irradiation probe, installs well in the adjacent assistant conveyance lane (air inlet) 13 in monitoring point
Lower Monitor Sub-Station of Less 4 installs underground monitoring host 3 in shaft station, at ground installation ground monitoring host 2 and ground data
Host 1 is managed, is connected by signal cable 7 between equipment；
(3) debugging monitoring：The neutron radiation monitoring instrument 8 connected is debugged, is monitored after determining normally, to it
In a monitoring point be monitored or all monitoring points be monitored respectively simultaneously；
(4) analysis and early warning：Summarize the monitoring knot of a monitoring point or multiple monitoring points that underground monitoring substation 4 is recorded
The result recorded is sent to underground monitoring host 3 by fruit, is retransmited to ground monitoring host 2.To the digging laneway monitored
12, the coal and rock preservation situation of headentry 9, tailentry 10 or coal working face 11 is analyzed, in
The stress state of coal and rock and its micro rupture activity of inside are analyzed in son radiation, are reference with Fig. 4, are returned in conjunction with real-time
Neutron irradiation dose value with compared before in the normal value of laboratory and field monitoring, by monitor value be less than normal value prison
Measuring point region is divided into general area, and the monitoring point region by monitor value higher than normal value is divided into danger zone；
Using neutron irradiation dose value as foundation, to danger zone carry out grading forewarning system, be followed successively by from high to low by danger classes it is red, orange,
Yellow prewarning area：Red early warning region is withdrawn into administrative staff and equipment, and in real time research and application as a result, reporting scheduling center,
It sends engineer to carry out situation investigation, is allowed for access after the area monitoring index is normal；Orange warning area people is withdrawn simultaneously
Real-time research and application after the area monitoring index is normal as a result, be allowed for access；Yellow prewarning area emphasis monitors, and increases monitoring
Point, and research and application result in real time.
It is finally reached and accurately coal and rock rupture unstability is carried out sentencing knowledge early warning, and it is fast, strong applicability to sentence knowledge early warning speed
Purpose.
The foregoing is merely presently preferred embodiments of the present invention, is not limited to the scope of the present invention.It should be noted that
Any technical person familiar with the field is under the introduction of this specification, all equivalent replacements, the apparent variant made,
It all falls within the essential scope of this specification, ought to be protected by the present invention.
Claims (4)
1. a kind of neutron radiation monitoring early warning system of underground coal Instability of Rock Body dynamic disaster, it is characterised in that：Underground coal and rock
The equipment of the neutron radiation monitoring early warning system of unstability dynamic disaster forms：
Neutron radiation monitoring instrument, underground monitoring substation, underground monitoring host, ground monitoring host, ground data handle host.Institute
It states neutron radiation monitoring instrument and is arranged in the digging laneway of mine, headentry, tailentry and coal working face
On monitoring point, the underground monitoring substation is arranged in the assistant conveyance lane (air inlet) adjacent with monitoring point, the underground prison
It surveys host to be mounted in shaft station, the ground monitoring host and the installation of ground data processing host are on the ground.
2. a kind of neutron radiation monitoring early warning system of underground coal Instability of Rock Body dynamic disaster according to claim 1,
It is characterized in that：
The neutron radiation monitoring instrument is connect with the underground monitoring substation, the underground monitoring substation and the underground monitoring master
Machine connects, and the underground monitoring host is connect with the ground monitoring host, the ground monitoring host and the ground data
Host connection is handled, above equipment is connected by signal cable.
3. a kind of neutron radiation monitoring early warning system of underground coal Instability of Rock Body dynamic disaster according to claim 1,
It is characterized in that：
The neutron radiation monitoring instrument is made of neutron irradiation probe and neutron survey meter host.
4. a kind of neutron radiation monitoring early warning system of underground coal Instability of Rock Body dynamic disaster according to claim 1,
It is characterized in that：
Institute is arranged on monitoring point in the digging laneway of mine, headentry, tailentry and coal working face
During stating neutron radiation monitoring instrument, the spacing of adjacent monitoring point is 20 meters.
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| CN201810781629.2A CN108798786A (en) | 2018-07-17 | 2018-07-17 | A kind of neutron radiation monitoring method for early warning of underground coal Instability of Rock Body dynamic disaster |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261220A (en) * | 2018-12-05 | 2019-09-20 | 田成林 | A kind of compound dynamic disaster simulation experiment method of mine for considering top plate and influencing |
| CN110985125A (en) * | 2019-11-26 | 2020-04-10 | 中原工学院 | Deep well soft coal rock burst disaster monitoring and early warning system and early warning method thereof |
| CN111272545A (en) * | 2018-12-05 | 2020-06-12 | 田成林 | Mine composite disaster simulation test system and method considering roof influence |
| CN111272544A (en) * | 2018-12-05 | 2020-06-12 | 山东科技大学 | Test method for inducing composite dynamic disaster based on coal mine deep mining |
| CN115434754A (en) * | 2022-10-17 | 2022-12-06 | 北京科技大学 | Dynamic disaster early warning method based on effective electromagnetic radiation intensity of coal rock |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261220A (en) * | 2018-12-05 | 2019-09-20 | 田成林 | A kind of compound dynamic disaster simulation experiment method of mine for considering top plate and influencing |
| CN111272545A (en) * | 2018-12-05 | 2020-06-12 | 田成林 | Mine composite disaster simulation test system and method considering roof influence |
| CN111272544A (en) * | 2018-12-05 | 2020-06-12 | 山东科技大学 | Test method for inducing composite dynamic disaster based on coal mine deep mining |
| CN110985125A (en) * | 2019-11-26 | 2020-04-10 | 中原工学院 | Deep well soft coal rock burst disaster monitoring and early warning system and early warning method thereof |
| CN115434754A (en) * | 2022-10-17 | 2022-12-06 | 北京科技大学 | Dynamic disaster early warning method based on effective electromagnetic radiation intensity of coal rock |
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Application publication date: 20181113 |