CN109188361A - It is a kind of to be accurately positioned CO2The working face seismic detection method that emplacement is set - Google Patents
It is a kind of to be accurately positioned CO2The working face seismic detection method that emplacement is set Download PDFInfo
- Publication number
- CN109188361A CN109188361A CN201811066584.7A CN201811066584A CN109188361A CN 109188361 A CN109188361 A CN 109188361A CN 201811066584 A CN201811066584 A CN 201811066584A CN 109188361 A CN109188361 A CN 109188361A
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- big gun
- gun
- stope
- working face
- seismic
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 230000005284 excitation Effects 0.000 claims abstract description 26
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract 2
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 5
- 238000005474 detonation Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
-
- G01V1/01—
Abstract
CO can be accurately positioned the invention discloses a kind of2The working face seismic detection method that emplacement is set, using CO2Focus of the big gun as working face seismic survey；CO is laid in a lateral wall of stope2Gun excitation drilling, by CO2Big gun is laid in CO2In gun excitation drilling；At least four wave detectors are laid in the same lateral wall of stope, wave detector is connect with acquisition host；Collected multiple seismic signal is passed to computer by acquisition host, and computer is by process to CO2Big gun is in CO2Position in gun excitation drilling is positioned, and field geology data is combined to carry out comprehensive analysis, is finally predicted the geologic anomaly construction of stope.The present invention can be accurately positioned CO2Emplacement is set convenient for the subsequent processing to seismic signal, so that the accuracy of working face seismic survey be effectively ensured.
Description
Technical field
It is specifically a kind of to be accurately positioned CO the present invention relates to a kind of working face seismic detection method2The work that emplacement is set
Face seismic detection method.
Background technique
Currently, coal accounts for the 63% of China's energy-consuming, and in the case where continuing to optimize energy resource structure situation, the energy-consuming of coal
Dominance be still difficult to shake whithin a period of time.Coal mining accident, which takes place frequently, seriously threatens mine safety of workers and to coal mine band
Carrying out huge economic losses, the hidden geological tectonic (such as tomography, karst collapse col umn) in working face seriously affects mine safety production,
It is likely to become the channel of water and Gas Outburst, easily causes the serious accidents such as water bursting in mine, Gas Outburst.
Working face lateral wall geological structure detection method is mainly mine seismic reflection exploration.Meter is installed for mine working surface
And roadway opening is badly in need of finely finding out the geological structure regularity of distribution.The focus of mine seismic reflection exploration is mainly using hammering at present
And two ways is blown out, hammering focus is although easy to implement, but the energy that there is sending is weak, and seismic signal resolution ratio is low to be lacked
Point；Although and the energy that dynamite source issues is stronger, seismic signal high resolution, needs stopping scene applying in its detonation
Work, and high voltage is needed to detonate, it is therefore desirable to corresponding potential device, and explosive initiation has great security risk, once
There are a lot of serious accidents, examination and approval procedures needed for forcing detonation under these conditions are very complicated, and efficiency is very low
Under.It in addition is the distance between hypocentral location determining first and wave detector in existing working face seismic survey focal process, so
It is received afterwards according to the distance after determination and obtains detection result after vibration signal is calculated, therefore accurate determining hypocentral location is to visit
One of whether accurate key factor of result is surveyed, existing hammering focus and dynamite source are all by directly measuring acquisition, base
Carrying out innovation to the focus of working face seismic survey and the positioning of hypocentral location in above situation is the current urgent need to resolve of the industry
The problem of.
Summary of the invention
CO can be accurately positioned in view of the above existing problems in the prior art, the present invention provides a kind of2The working face that emplacement is set
Seismic detection method has the advantages that low pressure detonation, focus orientation, energy-controllable and reusable, in addition can be accurately positioned
CO2Emplacement is set convenient for the subsequent processing to seismic signal, so that the accuracy of working face seismic survey be effectively ensured.
To achieve the goals above, the technical solution adopted by the present invention is that: it is a kind of to be accurately positioned CO2The work that emplacement is set
Face seismic detection method, specific steps are as follows:
A, using CO2Focus of the big gun as working face seismic survey；
B, CO is laid in a lateral wall of stope2Gun excitation drilling, by CO2Big gun is laid in CO2In gun excitation drilling,
Then by CO2The detonating cord of big gun leads to drilling orifice；
C, stope same lateral wall lay at least four wave detectors, multiple wave detectors pass through connection main line with
Base station and acquisition host connection are acquired, wave detector, acquisition base station and acquisition host is made to form stope lateral wall seismological observation
System；
D, to CO2Big gun is in CO2Position in gun excitation drilling is positioned:
A, entire stope three dimensional network is formatted, be divided into N number of grid node altogether and determine each grid node
Three-dimensional coordinate；
B, acquisition host is opened, the same CO is made2Big gun is along CO2Gun excitation drills to actual mining surface launching repeat impact energy
Amount, acquisition host receive the multiple earthquake feedback signal data that wave detector transmits and carry out shake record in multiple times, then will be any
Twice earthquake record is combined, total M kind combination；
C, it is combined according to the different earthquake record of M kind, calculates the slot wave that goes directly in corresponding two earthquake records of each combination
The time difference of phase in angstrom, and seek its absolute value delta ri(i=1,2 ... M)；
D, with all grid nodes for virtual focus, N number of grid node is calculated to the through of each wave detector spatial position
Phase time in slot wave angstrom calculates each time difference of M kind combination and seeks its absolute value delta ti(i=1,2 ... M), obtain as follows
Time difference matrix:
E, it enablesIt constructs and solves following matrix equation value；
F, it is derived from by the above matrix, the corresponding grid node of element that matrix φ intermediate value is 0 is focal point, the net
The three-dimensional coordinate of lattice node is CO2The space coordinate of big gun；
E, CO is then adjusted2Big gun is in CO2Step D is repeated after depth in gun excitation drilling, acquires host record in the depth
The multiple seismic signal of position so recycles, until CO2Big gun is in CO2Different depth in gun excitation drilling completes acquisition host
After seismic recording process, collecting work is completed；
F, collected multiple seismic signal is passed to computer by acquisition host, and computer is by process to CO2Big gun is in CO2
Position in gun excitation hole position and field geology data is combined to carry out comprehensive analysis, finally to the geology of stope
Anomalous structure is predicted.
Further, the CO2Big gun is CO2The vibration big gun excited in gas phase pressure break pipe.
Compared with prior art, the present invention uses CO2Focus of the big gun as working face seismic survey, due to CO2Big gun has low
The controllable and reusable advantage of pressure detonation safety, orientation installation detonation, seismic source energy, is able to solve the earthquake of work on hand face
The problems such as seismic source energy is weak, resolution ratio is low, dynamite source is many and diverse and there are security risks is hammered in detection, the CO in detection2Big gun
Protrude into CO2Gun excitation drill in different depth launching shock energy, due in push due to the bending of excitation drilling script and
Manually-operated error, cause push after both horizontally and vertically on there are certain angle and depth error, make CO2Big gun shake
The physical location in source and worker push both estimated positions, and there are large errors.In addition, due to CO2The delay of big gun epicenter excitation is made
With, so that received signal and actual signal is there is certain error in time, it cannot be using the method acquisition CO2 for calculating direct wave
The physical location of big gun focus；The present invention is formatted working face of coal seam by three dimensional network, is then gone directly in slot wave angstrom in seismic signal
Phase is calculated, and by matrix equation to be accurately positioned CO2Work has finally been effectively ensured in three-dimensional coordinate locating for big gun
The accuracy of face seismic survey.
Detailed description of the invention
Fig. 1 is CO in the present invention2The position artwork of big gun and wave detector.
Fig. 2 is the enlarged diagram in Fig. 1 after dotted portion gridding.
In figure: 1, stope, 2, CO2Big gun, 3, CO2Gun excitation drilling, 4, wave detector, 5, grid node.
Specific embodiment
The present invention will be further described below.
As shown, specific steps of the invention are as follows:
A, using CO2Focus of the big gun 2 as working face seismic survey；
B, CO is laid in a lateral wall of stope 12Gun excitation drilling 3, by CO2Big gun 2 is laid in CO2Gun excitation drilling 3
It is interior, then by CO2The detonating cord of big gun 2 leads to drilling orifice；
C, at least four wave detectors 4 are laid in the same lateral wall of stope 1, multiple wave detectors 4 pass through connection master
Line is connect with acquisition base station and acquisition host, and wave detector 4, acquisition base station and acquisition host is made to form the earthquake of stope lateral wall
Observation system；
D, to CO2Big gun 2 is in CO2Position in gun excitation drilling 3 is positioned:
A, entire 1 three dimensional network of stope is formatted, be divided into N number of grid node altogether and determine each grid node
Three-dimensional coordinate；
B, acquisition host is opened, the same CO is made2Big gun 2 is along CO2Gun excitation drilling 3 emits repeat impact to stope 1
Energy, acquisition host receive the multiple earthquake feedback signal data that wave detector 4 transmits and carry out shake record in multiple times, then will appoint
Meaning twice earthquake record is combined, total M kind combination；
C, it is combined according to the different earthquake record of M kind, calculates the slot wave that goes directly in corresponding two earthquake records of each combination
The time difference of phase in angstrom, and seek its absolute value delta ri(i=1,2 ... M)；
D, with all grid nodes for virtual focus, N number of grid node is calculated to the through of each 4 spatial position of wave detector
Phase time in slot wave angstrom calculates each time difference of M kind combination and seeks its absolute value delta ti(i=1,2 ... M), obtain as follows
Time difference matrix:
E, it enablesIt constructs and solves following matrix equation value；
F, it is derived from by the above matrix, the corresponding grid node of element that matrix φ intermediate value is 0 is focal point, the net
The three-dimensional coordinate of lattice node is CO2The space coordinate of big gun 2；
E, CO is then adjusted2Big gun 2 is in CO2Step D is repeated after depth in gun excitation drilling 3, acquires host record in the depth
The multiple seismic signal of position is spent, is so recycled, until CO2Big gun 2 is in CO2Different depth in gun excitation drilling 3 is completed to acquire
After host seismic recording process, collecting work is completed；
F, collected multiple seismic signal is passed to computer, computer combination CO by acquisition host2Big gun is in CO2Big gun swashs
In hair engaging aperture position positioning and field geology data carry out comprehensive analysis, finally to the geologic anomaly of stope 1 construct into
Row prediction.
Further, the CO2Big gun is CO2The vibration big gun excited in gas phase pressure break pipe.
Claims (2)
1. a kind of can be accurately positioned CO2The working face seismic detection method that emplacement is set, which is characterized in that specific steps are as follows:
A, using CO2Focus of the big gun as working face seismic survey；
B, CO is laid in a lateral wall of stope2Gun excitation drilling, by CO2Big gun is laid in CO2In gun excitation drilling, then
By CO2The detonating cord of big gun leads to drilling orifice；
C, at least four wave detectors are laid in the same lateral wall of stope, multiple wave detectors pass through connection main line and acquisition
Base station and acquisition host connection, make wave detector, acquisition base station and acquisition host form stope lateral wall seismic observation system；
D, to CO2Big gun is in CO2Position in gun excitation drilling is positioned:
A, entire stope three dimensional network is formatted, be divided into N number of grid node altogether and determine the three-dimensional of each grid node
Coordinate；
B, acquisition host is opened, the same CO is made2Big gun is along CO2Gun excitation drills to actual mining surface launching repeat impact energy, adopts
Collection host receives the multiple earthquake feedback signal data that wave detector transmits and carries out shake record in multiple times, then genuine by any two
Shake record is combined, total M kind combination；
C, it is combined according to the different earthquake record of M kind, calculates and go directly in slot wave angstrom in corresponding two earthquake records of each combination
The time difference of phase, and seek its absolute value delta ri(i=1,2 ... M)；
D, with all grid nodes be virtual focus, calculate N number of grid node to each wave detector spatial position through slot wave
Phase time in angstrom calculates each time difference of M kind combination and seeks its absolute value delta ti(i=1,2 ... M), obtain the following time difference
Matrix:
E, it enablesIt constructs and solves following matrix equation value；
F, it is derived from by the above matrix, the corresponding grid node of element that matrix φ intermediate value is 0 is focal point, the grid section
The three-dimensional coordinate of point is CO2The space coordinate of big gun；
E, CO is then adjusted2Big gun is in CO2Step D is repeated after depth in gun excitation drilling, acquires host record in the depth location
Multiple seismic signal, so recycle, until CO2Big gun is in CO2Different depth in gun excitation drilling completes acquisition host earthquake
After recording process, collecting work is completed；
F, collected multiple seismic signal is passed to computer by acquisition host, and computer is by process to CO2Big gun is in CO2Big gun swashs
Position in hair engaging aperture position and field geology data is combined to carry out comprehensive analysis, finally to the geologic anomaly of stope
Construction is predicted.
2. a kind of CO can be accurately positioned according to claim 12The working face seismic detection method that emplacement is set, feature exist
In the CO2Big gun is CO2The vibration big gun excited in gas phase pressure break pipe.
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| CN201811066584.7A CN109188361B (en) | 2018-09-12 | 2018-09-12 | CO can pinpoint2Working face seismic exploration method for shot position |
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|---|---|---|---|
| CN201811066584.7A CN109188361B (en) | 2018-09-12 | 2018-09-12 | CO can pinpoint2Working face seismic exploration method for shot position |
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| Publication Number | Publication Date |
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| CN109188361A true CN109188361A (en) | 2019-01-11 |
| CN109188361B CN109188361B (en) | 2021-07-16 |
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