CN109188507A - One kind being based on CO2The mine earthquake forward probe method of big gun - Google Patents
One kind being based on CO2The mine earthquake forward probe method of big gun Download PDFInfo
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- CN109188507A CN109188507A CN201811062871.0A CN201811062871A CN109188507A CN 109188507 A CN109188507 A CN 109188507A CN 201811062871 A CN201811062871 A CN 201811062871A CN 109188507 A CN109188507 A CN 109188507A
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- big gun
- host
- acquisition
- forward probe
- earthquake forward
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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
- G01V1/104—Generating seismic energy using explosive charges
- G01V1/13—Arrangements or disposition of charges to produce a desired pattern in space or time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
Abstract
The invention discloses one kind to be based on CO2The mine earthquake forward probe method of big gun, using CO2Focus of the big gun as mine earthquake forward probe；Drilling is set in tunnel middle position of meeting head on, then by CO2Big gun is placed into predetermined position and is oriented installation；In tunnel, one lateral wall successively lays multiple six components wave detectors side by side；Acquisition host is opened, CO is made2Big gun emits a vibration signal to pre- digging direction, and the vibration signal that multiple six components wave detectors will test at this time passes to acquisition host, and acquisition host is recorded；Collected each 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 in front of coal road.The present invention has the advantages that low pressure detonation, focus orientation, energy-controllable and reusable, can be in CO2Big gun carries out carrying out mine earthquake forward probe during coal mass fracture operation, and mine earthquake forward probe is carried out in the case where not influencing work surface construction to realize.
Description
Technical field
It is specifically a kind of to be based on CO the present invention relates to a kind of mine earthquake forward probe method2The mine earthquake of big gun is advanced
Detection method.
Background technique
Due to the national condition of China " rich coal, few gas, oil-poor ", determine coal in China will production of energy with disappear
Leading position is occupied in expense and a very long time will not change.Along with the sustainable development of coal industry, mine safety is asked
Very severe is inscribed, such as roof collapse, coal and gas prominent, water bursting in mine all seriously affect the life security of mine worker and ask
Topic, 85% or more safety problem is generated in mine laneway driving production in numerous accidents according to statistics.
There is provided first hand geological technique data using earthquake forward probe method for mine laneway driving production is deep
The important leverage of safely mining of coalbed.Mine working surface installs meter and roadway opening is badly in need of finely finding out geological structure distribution rule
Rule, meeting head on, hidden geological tectonic is unknown that inbreak, coal and gas prominent, water bursting in mine etc. are easily led in subsequent recovery process in front
A series of major accidents.The forward probe of mine earthquake at present focus mainly using hammering and blows out two ways, though hammering focus
It is so easy to implement, but the energy that there is sending is weak, the low disadvantage of seismic signal resolution ratio；Although and blowing out the energy of focus sending
Stronger, seismic signal high resolution is measured, but needs to stop site operation in its detonation, and high voltage is needed to detonate, because
This needs corresponding potential device, and blows out detonation and have great security risk, a lot of serious accidents once occurs,
Examination and approval procedures needed for forcing detonation under the conditions of this are very complicated, and efficiency is very low.It is advanced to earthquake based on the above situation
The focus of detection carries out 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 to be based on CO2The mine earthquake forward probe of big gun
Method has the advantages that low pressure detonation, focus orientation, energy-controllable and reusable, can be in CO2Big gun carries out coal mass fracture work
Mine earthquake forward probe is carried out during industry, and mine earthquake is carried out in the case where not influencing work surface construction to realize
Forward probe.
To achieve the goals above, the technical solution adopted by the present invention is that: one kind be based on CO2The mine earthquake of big gun is visited in advance
Survey method, specific steps are as follows:
A, using multiple fumaroles towards identical CO2Big gun, the focus as mine earthquake forward probe；
B, comprehensively consider lithology, excitation energy and investigation depth feature, determine liquid CO2Dose Q, specific formula are；
Wherein, Q is liquid CO2Dose, A are excitation wavelet amplitude (i.e. excitation energy), and n is according to lithology and investigation depth
The numerical value that situation is selected in 0.2~1 range, c is constant；
C, along pre- digging direction drilling is set in tunnel middle position of meeting head on, is equally spacedly determined in drilling multiple predetermined
Position, then by CO2Big gun is placed into the predetermined position nearest apart from drilling orifice and is oriented installation, after the completion by CO2Big gun rises
Quick-fried line leads to drilling orifice；
D, in tunnel one lateral wall distance meet head on 100 meters in the range of, successively lay multiple six components wave detectors side by side, it is 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 earthquake forward probe 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, CO is made by low pressure initiator2Big gun emits a vibration signal to pre- digging direction, simultaneously
Signal triggering box feeds back to acquisition one trigger signal of host, makes to acquire the number that six component wave detector of host real-time reception transmits
According to；The vibration signal that multiple six components wave detectors will test at this time passes to acquisition host, and acquisition host is recorded；Then will
CO2After big gun is advanced to next predetermined position into drilling, CO is made by low pressure initiator2Big gun emits to pre- digging direction again
Vibration signal, synchronous signal triggering box feed back to acquisition one trigger signal of host, and acquisition host is recorded, so followed
Ring, until CO2After big gun completes transmitting in each predetermined position, collecting work is completed；
G, collected each vibration signal is passed to computer by acquisition host, computer combination field geology data into
Row comprehensive analysis finally predicts the geologic anomaly construction in front of coal road.
Further, the distance between multiple six components wave detectors are 5 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 earthquake forward probe, due to CO2The detonation of big gun low pressure
Safety, orientation installation detonation, focus orientation, energy-controllable and reusable feature, are able to solve existing mine and visit in advance
Plummet hits the problems such as seismic source energy is weak, resolution ratio is low, dynamite source is many and diverse and there are security risks, in addition CO2Big gun has been made at present
For under mine to the antireflective main tool of coal bed fracturing, therefore use CO2Big gun is not necessarily to as the focus mode of earthquake forward probe
It is additional to increase focus equipment, its working principle is that being detonated by low pressure from liquid becomes gaseous CO2, by its impact force to coal
Original crack expand anti-reflection or carries out pressure break and generate new crack inside rock mass, consequently facilitating to intracorporal watt of coal petrography
This is extracted, and the present invention exactly utilizes CO2Coal and rock is impacted after big gun transmitting, impact energy can make coal and rock produce
Raw vibration signal, obtains the vibration signal by six component wave detectors, therefore can be in CO2Big gun carries out coal mass fracture operation
During carry out vibration forward probe, in the mode for not influencing site operation carry out geological structure forward probe to realize.
Detailed description of the invention
Fig. 1 is position artwork of the invention.
In figure: 1, coal seam, 2, CO2Big gun, 3, drilling, 4, tunnel, 5, top plate, 6, bottom plate, 7, acquisition host, the inspection of 8, six components
Wave device, 9, meet head on, 10, detonating cord.
Specific embodiment
The present invention will be further described below.
As shown, specific steps of the invention are as follows:
A, using multiple fumaroles towards identical CO2Big gun 2, the focus as mine earthquake forward probe；
B, comprehensively consider lithology, excitation energy and investigation depth feature, determine liquid CO2Dose Q, specific formula are；
Wherein, Q is liquid CO2Dose, A are excitation wavelet amplitude (i.e. excitation energy), and n is according to lithology and investigation depth
(forward probe is generally chosen to be the numerical value that situation is selected in 0.2~1 range in coal seam), c is constant；
C, along pre- digging direction drilling 3 is set in tunnel 9 middle positions of meeting head on, is equally spacedly determined in drilling 3 multiple
Predetermined position, then by CO2Big gun 2 is placed into the predetermined position nearest apart from drilling orifice and is oriented installation, after the completion by CO2
The detonating cord of big gun 2 leads to drilling orifice；
D, in tunnel 4 one lateral wall distance meet head on 100 meters in the range of, successively lay multiple six components wave detectors 8 side by side, it is more
A six components wave detector 8 is connect by connection main line with acquisition base station and acquisition host 7, and six component wave detectors 8, acquisition base are made
It stands and acquires host 7 and form earthquake forward probe observation system；
E, by the CO in step C2Big gun 2 triggers box by detonating cord and signal and is connected in parallel on low pressure initiator, signal triggering
Box is connect with acquisition host 7；
F, acquisition host 7 is opened, CO is made by low pressure initiator2Big gun 2 emits a vibration signal to pre- digging direction, together
When signal triggering box feed back to acquisition 7 one trigger signals of host, make acquire 7 real-time reception of host, six component wave detector 8 transmit
Data；The vibration signal that multiple six components wave detectors 8 will test at this time passes to acquisition host 7, and acquisition host 7 is remembered
Record；Then by CO2After big gun 2 is advanced to next predetermined position into drilling 3, CO is made by low pressure initiator2Big gun 2 is again to pre-
Digging direction emits a vibration signal, and synchronous signal triggering box feeds back to acquisition 7 one trigger signals of host, acquires host 7
It is recorded, is so recycled, until CO2After big gun 2 completes transmitting in each predetermined position, collecting work is completed；
G, collected each vibration signal is passed to computer, computer combination field geology data by acquisition host 7
Comprehensive analysis is carried out, finally the geologic anomaly construction in front of coal road is predicted.
Further, the distance between multiple six components wave detectors 8 are 5 meters in the step D.
Further, the CO2Big gun 2 is CO2The vibration big gun excited in gas phase pressure break pipe.
Claims (3)
1. one kind is based on CO2The mine earthquake forward probe method of big gun, which is characterized in that specific steps are as follows:
A, using multiple fumaroles towards identical CO2Big gun, the focus as mine earthquake forward probe；
B, comprehensively consider lithology, excitation energy and investigation depth feature, determine liquid CO2Dose Q, specific formula are；
Wherein, Q is liquid CO2Dose, A are excitation wavelet amplitude, and n is according to lithology and investigation depth situation in 0.2~1 range
Interior selected numerical value, c are constant；
C, along pre- digging direction drilling is set in tunnel middle position of meeting head on, equally spacedly determines multiple pre-determined bits in drilling
It sets, then by CO2Big gun is placed into the predetermined position nearest apart from drilling orifice and is oriented installation, after the completion by CO2The detonation of big gun
Line leads to drilling orifice；
D, in tunnel one lateral wall distance meet head on 100 meters in the range of, successively lay multiple six components wave detectors side by side, 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 earthquake forward probe 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, CO is made by low pressure initiator2Big gun emits a vibration signal, synchronous signal to pre- digging direction
Triggering box feeds back to acquisition one trigger signal of host, makes to acquire the data that six component wave detector of host real-time reception transmits；This
When the vibration signal that will test of multiple six components wave detectors pass to acquisition host, acquisition host is recorded；Then by CO2Big gun
After being advanced to next predetermined position into drilling, CO is made by low pressure initiator2Big gun is primary to the transmitting of pre- digging direction again
Vibration signal, synchronous signal triggering box feed back to acquisition one trigger signal of host, and acquisition host is recorded, so recycled,
Until CO2After big gun completes transmitting in each predetermined position, collecting work is completed；
G, collected each 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 in front of coal road is predicted.
2. according to claim 1 a kind of based on CO2The mine earthquake forward probe method of big gun, which is characterized in that the step
The distance between multiple six components wave detectors are 5 meters in rapid D.
3. according to claim 1 a kind of based on CO2The mine earthquake forward probe method of big gun, which is characterized in that described
CO2Big gun is CO2The vibration big gun excited in gas phase pressure break pipe.
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| CN201811062871.0A CN109188507B (en) | 2018-09-12 | 2018-09-12 | Based on CO2Mine earthquake advanced detection method of cannon |
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| CN201811062871.0A CN109188507B (en) | 2018-09-12 | 2018-09-12 | Based on CO2Mine earthquake advanced detection method of cannon |
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| CN109188507B CN109188507B (en) | 2020-02-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748341A (en) * | 2019-09-24 | 2020-02-04 | 河南理工大学 | Method for detecting influence radius of controllable seismic source based on carbon dioxide blasting |
| 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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| WO2014209141A2 (en) * | 2014-10-30 | 2014-12-31 | Instytut Technik Innowacyjnych Emag | Method and system for assessing a risk of high-energy earth bursts generated by underground mining |
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2018
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| WO2014209141A2 (en) * | 2014-10-30 | 2014-12-31 | Instytut Technik Innowacyjnych Emag | Method and system for assessing a risk of high-energy earth bursts generated by underground mining |
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Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748341A (en) * | 2019-09-24 | 2020-02-04 | 河南理工大学 | Method for detecting influence radius of controllable seismic source based on carbon dioxide blasting |
| 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 |
| 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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| CN109188507B (en) | 2020-02-07 |
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