CN109239770A - One kind is with CO2Big gun is the working face lateral wall seismic detection method of focus - Google Patents
One kind is with CO2Big gun is the working face lateral wall seismic detection method of focus Download PDFInfo
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- CN109239770A CN109239770A CN201811061994.2A CN201811061994A CN109239770A CN 109239770 A CN109239770 A CN 109239770A CN 201811061994 A CN201811061994 A CN 201811061994A CN 109239770 A CN109239770 A CN 109239770A
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- gun
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/133—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion
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Abstract
The invention discloses one kind with CO2Big gun is the working face lateral wall seismic detection method of focus, using CO2Focus of the big gun as working face lateral wall seismic survey；Side is spaced apart from each other certain distance and lays multiple CO in the air inlet of stope2Gun excitation drilling, by multiple CO2Big gun one-to-one correspondence is laid in each CO2In gun excitation drilling；In CO2The wall helped in gun excitation drilling is locating, equidistantly lays multiple six components wave detectors side by side；Opening acquisition host makes CO2Big gun is along CO2Gun excitation drills to stope launching shock energy, acquires host and is recorded；Collected multiple vibration signal is passed to computer by acquisition host, and computer combination field geology data carries out comprehensive analysis, is finally predicted the geologic anomaly construction of stope lateral wall.The present invention can be in CO2Big gun carries out carrying out working face lateral wall seismic survey during coal mass fracture operation, and working face lateral wall seismic survey is carried out in the case where not influencing work surface construction to realize.
Description
Technical field
It is specifically a kind of with CO the present invention relates to a kind of working face lateral wall seismic detection method2Big gun is the working face of focus
Lateral wall 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 for blowing out focus sending 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 blow out detonation and have 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.Based on the above situation is carried out to the focus of working face lateral wall seismic prospecting the problem of innovating urgent need to resolve current for the industry.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides one kind with CO2Big gun is the working face lateral wall of focus
Shake detection method, have the advantages that low pressure detonation, focus orient, energy-controllable and reusable, can be in CO2Big gun carries out coal body
Working face lateral wall seismic survey is carried out during fracturing work, is carried out to realize in the case where not influencing work surface construction
Working face lateral wall seismic survey.
To achieve the goals above, the technical solution adopted by the present invention is that: this kind is with CO2Big gun is the working face lateral wall of focus
Seismic detection method, specific steps are as follows:
A, using CO2Focus of the big gun as working face lateral wall seismic survey；
B, first in the working face lateral wall construction test hole of required detection, by CO2Big gun is placed into test hole, CO2Big gun transmitting punching
Energy is hit until working face coal and rock cracking determines required CO2Gun excitation critical pressure value, then determines according to the following formula
CO2The excitation wavelet amplitude of big gun；
A=mPn
Wherein, A is excitation wavelet amplitude, and P is prompt critical pressure value, and m and n are constant, and the value of m, n pass through largely existing
Field experimental data obtains；
C, side is spaced apart from each other certain distance and lays multiple CO in the air inlet of stope2Gun excitation drilling, will be more
A CO2Big gun one-to-one correspondence is laid in each CO2In gun excitation drilling, then by each CO2The detonating cord of big gun leads to drilling hole
Mouthful；
D, in CO2The wall helped in gun excitation drilling is locating, equidistantly lays multiple six components wave detectors side by side, multiple
Six component wave detectors pass through connection main line with acquisition base station and acquisition host connect, make six component wave detectors, acquire base station and
It acquires host and forms stope lateral wall seismic observation system；
E, by the CO in step C2Big gun triggers box by detonating cord and signal and is connected in parallel on low pressure initiator, and signal triggers box
It is connect with acquisition host；
F, acquisition host is opened, each CO is made by low pressure initiator2Big gun is along CO2Gun excitation drill to stope with
The excitation wavelet amplitude that step B is determined emits one-shot energy, and synchronous signal triggering box feeds back to acquisition host trigger signal,
Acquisition host is set to start to receive the vibrational feedback signal data that six component wave detectors transmit, acquisition host is recorded；Then it adjusts
Whole CO2Big gun is in CO2Emit one-shot energy after depth in gun excitation drilling again, acquisition host is recorded again, so followed
Ring, until each CO2Big gun is in CO2After different depth in gun excitation drilling completes transmitting, collecting work is completed；
G, collected multiple vibration signal is passed to computer by acquisition host, computer combination field geology data into
Row comprehensive analysis finally predicts the geologic anomaly construction of stope lateral wall.
Further, the multiple CO2The distance between gun excitation drilling is 10 meters.
Further, the distance between multiple six components wave detectors are 10 meters in the step D.
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 lateral wall seismic survey, due to CO2Big gun tool
There are low pressure detonation safety, orientation installation detonation, energy-controllable and reusable, is able to solve work on hand surface side side
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 seismic survey, in addition CO2Big gun
It has been used as under mine to the antireflective main tool of working face of coal seam pressure break at present, therefore has used CO2Big gun is as working face lateral wall
The focus mode of shake detection increases focus equipment without additional, its working principle is that being detonated by low pressure from liquid becomes gaseous
CO2, expand anti-reflection to the original crack in coal and rock inside by its impact force or carries out pressure break and generate new crack, from
And convenient for being extracted to the intracorporal gas of coal petrography, the present invention exactly utilizes CO2Coal and rock is impacted after big gun transmitting, is rushed
Hitting energy can make coal and rock generate vibration signal, be obtained by six component wave detectors to the vibration signal, therefore can be
CO2Big gun carries out carrying out working face lateral wall seismic survey during coal mass fracture operation, applies to realize not influencing working face
Working face lateral wall seismic survey is carried out in the case where work.
Detailed description of the invention
Fig. 1 is position artwork of the invention.
In figure: 1, six component wave detector, 2, air inlet, 3, CO2Big gun, 4, CO2Gun excitation drilling, 5, stope, 6, return
Air way.
Specific embodiment
The present invention will be further described below.
As shown in Figure 1, specific steps of the invention are as follows:
A, using CO2Focus of the big gun 3 as working face lateral wall seismic survey；
B, first in the working face lateral wall construction test hole of required detection, by CO2Big gun 3 is placed into test hole, CO2Big gun hair 3 is penetrated
Impact energy is until working face coal and rock cracking determines required CO2Gun excitation critical pressure value, then according to the following formula really
Determine CO2The excitation wavelet amplitude of big gun；
A=mPn
Wherein, A is excitation wavelet amplitude, and P is prompt critical pressure value, and m and n are constant, and the value of m, n pass through largely existing
Field experimental data obtains；
C, side is spaced apart from each other certain distance and lays multiple CO in the air inlet 2 of stope 52Gun excitation drilling 4, will
Multiple CO2The one-to-one correspondence of big gun 3 is laid in each CO2In gun excitation drilling 4, then by each CO2The detonating cord of big gun 3 leads to brill
Hole aperture；
D, in CO2The wall of interior side locating for gun excitation drilling 4, equidistantly lays multiple six components wave detectors 1 side by side, more
A six components wave detector 1 is connect by connection main line with acquisition base station and acquisition host, and six component wave detectors 1, acquisition base are made
It stands and acquires host and form stope lateral wall seismic observation system；
E, by the CO in step C2Big gun 3 triggers box by detonating cord and signal and is connected in parallel on low pressure initiator, signal triggering
Box is connect with acquisition host；
F, acquisition host is opened, each CO is made by low pressure initiator2Big gun 3 is along CO2Gun excitation drilling 4 is to stope 5
Emit one-shot energy with the excitation wavelet amplitude that step B is determined, synchronous signal triggering box feeds back to acquisition host triggering letter
Number, make acquisition host start to receive the vibrational feedback signal data that six component wave detectors 1 transmit, acquisition host is recorded；So
After adjust CO2Big gun 3 is in CO2Emitting one-shot energy after depth in gun excitation drilling 4 again, acquisition host is recorded again,
So circulation, until each CO2Big gun 3 is in CO2After different depth in gun excitation drilling 4 completes transmitting, collecting work is completed；
G, collected multiple vibration signal is passed to computer by acquisition host, computer combination field geology data into
Row comprehensive analysis finally predicts the geologic anomaly construction of stope lateral wall.
Further, the multiple CO2The distance between gun excitation drilling 4 is 10 meters.
Further, the distance between multiple six components wave detectors 1 are 10 meters in the step D.
Further, the CO2Big gun 3 is CO2The vibration big gun excited in gas phase pressure break pipe.
Claims (4)
1. one kind is with CO2Big gun is the working face lateral wall seismic detection method of focus, which is characterized in that specific steps are as follows:
A, using CO2Focus of the big gun as working face lateral wall seismic survey；
B, first in the working face lateral wall construction test hole of required detection, by CO2Big gun is placed into test hole, CO2Big gun launching shock energy
Amount is until working face coal and rock cracking determines required CO2Then gun excitation critical pressure value determines CO according to the following formula2Big gun
Excitation wavelet amplitude；
A=mPn
Wherein, A is excitation wavelet amplitude, and P is prompt critical pressure value, and m and n are constant；
C, side is spaced apart from each other certain distance and lays multiple CO in the air inlet of stope2Gun excitation drilling, by multiple CO2
Big gun one-to-one correspondence is laid in each CO2In gun excitation drilling, then by each CO2The detonating cord of big gun leads to drilling orifice；
D, in CO2The wall helped in gun excitation drilling is locating, equidistantly lays multiple six components wave detectors side by side, and multiple six points
Amount wave detector passes through connection main line and connect with acquisition base station and acquisition host, makes six component wave detectors, acquisition base station and acquisition
Host forms stope lateral wall seismic observation system；
E, by the CO in step C2Big gun triggers box by detonating cord and signal and is connected in parallel on low pressure initiator, and signal triggers box and adopts
Collect host connection；
F, acquisition host is opened, each CO is made by low pressure initiator2Big gun is along CO2Gun excitation drills to stope with step B
Determining excitation wavelet amplitude emits one-shot energy, and synchronous signal triggering box feeds back to acquisition host trigger signal, makes to adopt
Collection host starts to receive the vibrational feedback signal data that six component wave detectors transmit, and acquisition host is recorded；Then CO is adjusted2
Big gun is in CO2Emitting one-shot energy after depth in gun excitation drilling again, acquisition host is recorded again, is so recycled,
Until each CO2Big gun is in CO2After different depth in gun excitation drilling completes transmitting, collecting work is completed；
G, collected multiple vibration signal is passed to computer by acquisition host, and computer combination field geology data carries out comprehensive
Analysis is closed, finally the geologic anomaly construction of stope lateral wall is predicted.
2. one kind according to claim 1 is with CO2Big gun is the working face lateral wall seismic detection method of focus, which is characterized in that
The multiple CO2The distance between gun excitation drilling is 10 meters.
3. according to claim 1 a kind of using CO2 big gun as the working face lateral wall seismic detection method of focus, feature exists
In the distance between multiple six components wave detectors are 10 meters in the step D.
4. one kind according to claim 1 is with CO2Big gun is the working face lateral wall seismic detection method of focus, which is characterized in that
The CO2Big gun is CO2The vibration big gun excited in gas phase pressure break pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811061994.2A CN109239770A (en) | 2018-09-12 | 2018-09-12 | One kind is with CO2Big gun is the working face lateral wall seismic detection method of focus |
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| CN201811061994.2A CN109239770A (en) | 2018-09-12 | 2018-09-12 | One kind is with CO2Big gun is the working face lateral wall seismic detection method of focus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988982A (en) * | 2019-12-20 | 2020-04-10 | 山东唐口煤业有限公司 | Earthquake CT detection arrangement method for coal mine tunneling roadway |
| CN111413735A (en) * | 2020-05-11 | 2020-07-14 | 安徽理工大学 | Coal face rapid earthquake transmission chromatography method capable of simultaneously exciting multiple seismic sources |
| CN111413736A (en) * | 2020-05-11 | 2020-07-14 | 安徽理工大学 | Roadway seismic reflection advanced detection method capable of realizing simultaneous excitation of multiple seismic sources |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988982A (en) * | 2019-12-20 | 2020-04-10 | 山东唐口煤业有限公司 | Earthquake CT detection arrangement method for coal mine tunneling roadway |
| CN111413735A (en) * | 2020-05-11 | 2020-07-14 | 安徽理工大学 | Coal face rapid earthquake transmission chromatography method capable of simultaneously exciting multiple seismic sources |
| CN111413736A (en) * | 2020-05-11 | 2020-07-14 | 安徽理工大学 | Roadway seismic reflection advanced detection method capable of realizing simultaneous excitation of multiple seismic sources |
| CN111413735B (en) * | 2020-05-11 | 2022-08-26 | 安徽理工大学 | Coal face rapid earthquake transmission chromatography method capable of simultaneously exciting multiple seismic sources |
| CN111413736B (en) * | 2020-05-11 | 2022-08-26 | 安徽理工大学 | Roadway seismic reflection advanced detection method capable of realizing simultaneous excitation of multiple seismic sources |
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Application publication date: 20190118 |