CN105781620B - Dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring - Google Patents
Dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring Download PDFInfo
- Publication number
- CN105781620B CN105781620B CN201610266198.7A CN201610266198A CN105781620B CN 105781620 B CN105781620 B CN 105781620B CN 201610266198 A CN201610266198 A CN 201610266198A CN 105781620 B CN105781620 B CN 105781620B
- Authority
- CN
- China
- Prior art keywords
- monitoring
- via hole
- hole
- dynamic disaster
- early warning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The present invention provides a kind of dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring, belongs to mining engineering, the monitoring of Geotechnical Engineering dynamic disaster and early warning technology field.Dynamic disaster is bred the roadway surrounding rock rupture process in evolutionary process by laying via hole and is revealed in via hole periphery by this method, useful signal decay is reduced by way of laying monitoring holes and sensor is installed in monitoring holes to disturb with construction noise, via hole hole wall country rock micro rupture state is directly monitored, dynamic disaster is monitored in real time.Instant invention overcomes drilling cuttings method (being directed to coal mine rock burst early warning) it is cumbersome, can not monitor in real time and acoustic-emission useful signal is weak, noise jamming causes monitoring result to owe the defects of accurate by force, improve mining engineering, the security and validity of the monitoring of Geotechnical Engineering dynamic disaster.
Description
Technical field
The present invention relates to mining engineering, the monitoring of Geotechnical Engineering dynamic disaster and early warning technology field, a kind of base is particularly related to
In the dynamic disaster method for early warning of roadway surrounding rock rupture via hole monitoring.
Background technology
In dynamic disaster (coal mine rock burst, hard rock rock burst etc.) monitoring and warning field, for coal mine rock burst, at present
Forecast when participating in the cintest both domestic and external is only mainly that the warning index used in each mine is different based on drilling cuttings method.Coal powder quantity of bore is to bore
Consider the reflection of rock masses fracturing state in hole to be worth doing, be the overall target for including the factors such as mining induced stress, coal properties, prominent environment.
The outstanding advantages of drilling cuttings method are the reliabilities of its practicality and method, and it, which protrudes shortcoming, was operated in implementation process
The complexity of journey, the operating error to vary with each individual and continuous monitoring and real-time early warning are unable to, so as to causing useful information to be omitted
Occur that accurately and efficiently carry out early warning can not be pressed to impact.
Coal and rock and the country rock near field state of rupture of hard rock rock mass are generally used the methods of sound emission and are monitored, sound hair
It is the important technical in brittle rock mass dynamic disaster monitoring and warning to penetrate monitoring, directly reflects rock rupture state, compares
It is relatively accurate, and real-time monitoring can be realized, give warning in advance.
Dou Lin distinguished professors be equal to 2011《Rock-soil mechanics》On delivered that " sound emission monitoring technology of impulsion pressure is ground
Study carefully " paper, discuss the feasibility using Acoustic Emission Evaluation Hazards of Rock Burst, it is proposed that the sound of Hazards of Rock Burst evaluation
The expression way of launching target, the determination of critical indicator and division of danger classes etc..Peng Qi be equal to 2009《Ground power
Learn》On delivered " model for predicting rock burst based on AE time serieses " paper, according in live rock-burst monitoring during sound emission (AE)
Between sequence the characteristics of, using wavelet neural network and catastrophe theory, establish a kind of new model for predicting rock burst.
The outstanding advantages of acoustic emission monitor(ing) method are directly accurate, can be monitored in real time, and it is that destruction signals are strong that it, which protrudes shortcoming,
Spend weak, while sensor is serious by noise jamming, causes acoustic emission signal data inversion analysis result to owe reliable, sound emission effective
Signal extraction mistake, sound emission are sentenced the series of problems such as knowledge method failure and happened occasionally.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of dynamic disaster based on roadway surrounding rock rupture via hole monitoring
Method for early warning, with reference to drilling cuttings method early warning general principle and acoustic emission monitor(ing) means, and overcome the shortcomings of the two, dynamic disaster is pregnant
The country rock rupture process educated in evolutionary process is revealed in via hole periphery, directly monitors via hole hole wall country rock micro rupture state,
And useful signal decay is reduced by way of sensor is installed in monitoring holes and is disturbed with construction noise.
This method comprises the following steps：
First, monitoring holes and via hole are arranged in roadway's sides, the distance of monitoring holes and via hole meets in the range of via hole
Destruction signals can be monitored in hole acoustic emission sensor reception；
2nd, acoustic emission sensor is laid in monitoring holes, 1-5 acoustic emission sensor is laid in each monitoring holes, lays
After the completion of by monitoring holes orifice closing；
3rd, evolution different phase acoustie emission event is bred according to disaster and corresponds to threshold value, gather monitoring in real time using sound emission
System, dynamic monitoring is carried out to via hole hole wall coal petrography Surface Rupture Events caused by the change of country rock internal stress, realizes dynamic disaster
Dynamic early-warning.
Wherein, take supporting measure to avoid cell wall rupture in the monitoring holes of step 1, via hole hole wall without supporting at
Reason, open-hole state is kept, via hole hole wall country rock micro rupture state continues to develop change during surrouding rock stress increase, is dynamic disaster
Breed the most directly reflection of evolutionary process.
For the depth of via hole depending on it need to monitor country rock area size, monitoring hole depth is smaller than via hole in step 1
Depth.Via hole regards lithology, operating condition etc. with monitoring pitch of holes and relative position and determined.The hole depth of via hole and monitoring holes and
The sensor that cloth hole Position Design basic principle can be monitored in hole to ensure the destruction signals in the range of via hole receives.Can
Using one group of monitoring holes and via hole, multigroup monitoring holes and via hole can be also used, adjacent auxiliary pitch of holes regards rock power calamity
Depending on evil tendentiousness, dynamic disaster danger upper zone should lay closeer, the formation real-time monitoring net of roadway's sides, but via hole
Spacing is no less than acoustic emission signal propagation distance, avoids the monitoring signals of adjacent via hole from interfering.
Rational choice wall of hole and sensor installation method in monitoring holes, aperture sealing of hole after installation, ensure sensor letter
Number reception.
Monitoring holes acoustic emission signal reception at field test different depth, determine via hole with monitoring hole depth,
Via hole is with monitoring the parameters such as pitch of holes, adjacent auxiliary pitch of holes, acoustic emission sensor installation position.
According to historical record, field test and theory analysis determine monitored area dynamic disaster breed evolution different phase and
Its corresponding threshold value crucial.
In step 3 sound emission gather in real time monitoring system include monitoring main frame, data transmission system, power supply, Acquisition Instrument,
Terminal box and acoustic emission sensor, terminal box are connected between acoustic emission sensor and Acquisition Instrument, and power supply is adopted by supply lines
Collect instrument power supply, the signal that acoustic emission sensor receives transmits the letter collected to Acquisition Instrument, Acquisition Instrument by terminal box and signal wire
Transmitted number again through data transmission system to monitoring main frame.Monitoring main frame is used to handle, show Real-time Monitoring Data, according to setting in advance
Fixed threshold value crucial, possibility that is continuous, intuitively showing dynamic disaster generation, so as to breed evolution not same order to dynamic disaster
Duan Jinhang dynamic early-warnings.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
Dynamic disaster is bred the roadway surrounding rock rupture process in evolutionary process by laying via hole and is revealed in by this method
Via hole periphery, useful signal decay and scene are reduced by way of laying monitoring holes and sensor is installed in monitoring holes
Noise jamming, via hole hole wall country rock micro rupture state is directly monitored, overcomes the deficiency of drilling cuttings method and existing sound emission method,
Dynamic disaster is monitored in real time.Instant invention overcomes drilling cuttings method (being directed to coal mine rock burst early warning) it is cumbersome, can not
Monitoring in real time and acoustic-emission useful signal is weak, noise jamming causes monitoring result to owe the defects of accurate by force, improves impact ground
Press the security and validity of monitoring.
Brief description of the drawings
Fig. 1 is that the tunnel cloth hole of the dynamic disaster method for early warning for rupturing via hole monitoring based on roadway surrounding rock of the present invention is shown
It is intended to；
The sound emission that Fig. 2 is the present invention gathers monitoring system structure diagram in real time；
Fig. 3 is the bump dynamic early-warning threshold value schematic diagram of the present invention.
Wherein：1- monitoring holes；2- via holes；3- acoustic emission sensors；4- terminal boxes；5- signal wires；6- power supplys；7- powers
Line；8- Acquisition Instruments；9- data transmission systems；10- monitors main frame.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Dynamic disaster method for early warning of the present invention based on roadway surrounding rock rupture via hole monitoring, utilizes the side for laying via hole
Formula, roadway surrounding rock rupture process dynamic disaster bred in evolutionary process is revealed in via hole periphery, and is supervised by sound emission
Survey technology means are monitored in real time, dynamic early-warning, and effective letter is reduced by way of sensor is installed in monitoring holes
Number decay with construction noise disturb.
This method comprises the following steps that：
First, as shown in figure 1, expiring in roadway's sides arrangement monitoring holes 1 with via hole 2, the distance of monitoring holes 1 and via hole 2
The acoustic emission sensor 3 that destruction signals in the range of sufficient via hole 2 can be monitored in hole 1 is received, and supporting is taken in monitoring holes 1
Measure avoids cell wall rupture, and the hole wall of via hole 2 is handled without supporting, keeps open-hole state, and hole wall encloses during surrouding rock stress increase
Rock micro rupture state continues to develop change, is the most directly reflection that dynamic disaster breeds evolutionary process；The depth of via hole 2 according to
Depending on country rock area size need to be monitored, the depth of monitoring holes 1 is smaller than the depth of via hole 2, via hole 2 and the spacing of monitoring holes 1 and phase
Lithology, operating condition etc. are regarded to position to determine；One group of monitoring holes 1 and via hole 2 can be used, can also use multigroup monitoring holes 1 with
Via hole 2, for the spacing of adjacent via hole 2 depending on rock power disaster tendentiousness, danger zone should lay closeer, formation tunnel
Two help real-time monitoring net, but spacing is no less than acoustic emission signal propagation distance, avoid the monitoring signals of adjacent via hole 2 mutual
Interference.
2nd, acoustic emission sensor 3 is laid in monitoring holes 1,3 acoustic emission sensors 3, cloth are laid in each monitoring holes 1
By the orifice closing of monitoring holes 1 after the completion of if；
3rd, evolution different phase acoustie emission event is bred according to disaster and corresponds to threshold value (Fig. 3), gathered in real time using sound emission
Monitoring system, dynamic monitoring is carried out to the hole wall coal petrography Surface Rupture Events of via hole 2 caused by the change of country rock internal stress, realizes impact
Press dynamic early-warning in ground.Wherein, as shown in Fig. 2 sound emission is implemented in collection monitoring system, terminal box 4 is connected to voice sending sensor
Between device 3 and Acquisition Instrument 8, power supply 6 is powered by supply lines 7 to Acquisition Instrument 8, and the signal that acoustic emission sensor 3 receives is by connecing
Line box 4 is transmitted to Acquisition Instrument 8 with signal wire 5, and the signal that Acquisition Instrument 8 is collected is transmitted to monitoring main frame through data transmission system 9 again
10。
In actual mechanical process, the acoustic emission signal reception of monitoring holes 1 at field test different depth, determine auxiliary
Help depth, via hole 2 and the spacing of monitoring holes 1, the spacing of adjacent via hole 2, the cloth of acoustic emission sensor 3 in hole 2 and monitoring holes 1
If the parameters such as position.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
- A kind of 1. dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring, it is characterised in that：Including following step Suddenly：First, auxiliary is met in roadway's sides arrangement monitoring holes (1) and via hole (2), the distance of monitoring holes (1) and via hole (2) The acoustic emission sensor (3) that destruction signals in the range of hole (2) can be monitored in hole (1) receives；2nd, acoustic emission sensor (3) is laid in monitoring holes (1), 1-5 acoustic emission sensor is laid in each monitoring holes (1) (3), by monitoring holes (1) orifice closing after the completion of laying；3rd, evolution different phase acoustie emission event is bred according to disaster and corresponds to threshold value, monitoring system is gathered using sound emission in real time, Dynamic monitoring is carried out to via hole (2) hole wall coal petrography Surface Rupture Events caused by the change of country rock internal stress, realizes that dynamic disaster moves State early warning；Take supporting measure to avoid cell wall rupture in the monitoring holes (1) of the step 1, via hole (2) hole wall without supporting at Reason, keep open-hole state；Depending on it need to monitor country rock area size, monitoring holes (1) depth is less than auxiliary the depth of via hole (2) in the step 1 Help hole (2) depth；Sound emission gathers monitoring system in real time in the step 3 includes monitoring main frame (10), data transmission system (9), power supply (6), Acquisition Instrument (8), terminal box (4) and acoustic emission sensor (3), terminal box (4) are connected to acoustic emission sensor (3) and collection Between instrument (8), power supply (6) is powered by supply lines (7) to Acquisition Instrument (8), and the signal that acoustic emission sensor (3) receives is by connecing Line box (4) is transmitted to Acquisition Instrument (8) with signal wire (5), and the signal that Acquisition Instrument (8) is collected transmits through data transmission system (9) again To monitoring main frame (10).
- 2. the dynamic disaster method for early warning according to claim 1 based on roadway surrounding rock rupture via hole monitoring, its feature It is：More than one group of monitoring holes (1) and via hole (2) are used in the step 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266198.7A CN105781620B (en) | 2016-04-26 | 2016-04-26 | Dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266198.7A CN105781620B (en) | 2016-04-26 | 2016-04-26 | Dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105781620A CN105781620A (en) | 2016-07-20 |
| CN105781620B true CN105781620B (en) | 2018-02-02 |
Family
ID=56398675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610266198.7A Active CN105781620B (en) | 2016-04-26 | 2016-04-26 | Dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781620B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640194B (en) * | 2016-09-27 | 2019-02-22 | 西安科技大学 | A kind of compound coal rock gas dynamic disaster method for early warning |
| CN106437853B (en) * | 2016-09-27 | 2019-02-15 | 西安科技大学 | A kind of coal petrography bump dynamic disaster method for early warning |
| CN107621417A (en) * | 2017-09-04 | 2018-01-23 | 中国电建集团华东勘测设计研究院有限公司 | Large scale brittle rock mass characteristic strength test device and method |
| CN110924945A (en) * | 2019-12-13 | 2020-03-27 | 山东科技大学 | Safe working method under condition of lateral suspended roof rock burst |
| CN111322116B (en) * | 2020-04-07 | 2020-12-15 | 北京科技大学 | Method and device for monitoring mining surrounding rock ground pressure disaster in real time |
| CN113187559A (en) * | 2021-05-31 | 2021-07-30 | 煤炭科学研究总院 | Mine safety early warning method and device |
| CN116448883B (en) * | 2023-06-13 | 2023-09-26 | 长江三峡勘测研究院有限公司（武汉） | Method, system, equipment and terminal for monitoring and early warning high-level dangerous rock body of scarp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267977B (en) * | 2013-04-24 | 2015-12-02 | 山东理工大学 | Underground engineering wall rock disaster whole time interval induced polarization monitoring method |
| CN104763453A (en) * | 2015-02-11 | 2015-07-08 | 中国安全生产科学研究院 | Surrounding rock anchor bolt stress wave positioning monitoring system |
| CN104989456B (en) * | 2015-07-24 | 2017-04-05 | 青岛理工大学 | A kind of Large Span Underground engineering excavation surrounding rock stability monitoring and pre-alarming method |
| CN105484802B (en) * | 2016-01-15 | 2018-05-15 | 神华集团有限责任公司 | A kind of coal mine rock burst combined monitoring early warning system and its monitoring and pre-alarming method |
-
2016
- 2016-04-26 CN CN201610266198.7A patent/CN105781620B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105781620A (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105781620B (en) | Dynamic disaster method for early warning based on roadway surrounding rock rupture via hole monitoring | |
| CN106437854B (en) | Distributed coal rock dynamic disaster acoustic-electric synchronous monitoring system and method | |
| CN104747184B (en) | Measurement-while-drilling method and device for three-dimensional wave velocity imaging of rock mass in front of tunnel face | |
| CN103018788B (en) | Profound tunnel unfavorable geology and Mechanical property forward probe device and method | |
| CN101762830B (en) | Distributed coal mine rock burst monitoring method | |
| CN204462405U (en) | A kind of rock burst omen early warning system based on acoustic emission | |
| CN105116440B (en) | A kind of slope rock mass monitoring system and monitoring method | |
| CN103016063B (en) | Monitoring system for construction safety | |
| CN111648826B (en) | Coal mine rock burst prediction early warning system and method | |
| CN105676267A (en) | Strain type rockburst early warning method based on acoustic signal spectral analysis | |
| CN101526010A (en) | Mine water bursting disaster monitoring and early-warning system and control method thereof | |
| CN108802825A (en) | A kind of monitored by infrasonic wave coal rock dynamic disaster localization method and positioning system | |
| CN106089304A (en) | A kind of based on stratum construction multifunctional electric control early warning communication system | |
| CN202300529U (en) | Slight shock monitoring sensor arrangement structure in deeply buried long tunnel boring machine (TBM) tunneling process | |
| CN202975361U (en) | Advance detection apparatus for unfavorable geology and rock mass mechanical property of deep and long tunnel | |
| CN202230595U (en) | Multichannel data acquisition system used for vibrating wire transducers | |
| CN103017822A (en) | Surrounding rock deformation fracture evolution test method and structure for underground powerhouse in high ground stress region | |
| CN102997886A (en) | Monitoring method for remotely measuring and controlling damage depths of floor strata | |
| CN103728374A (en) | Underground engineering wall surrounding rock disaster non-drilling ultrasonic wave lossless real-time monitoring method | |
| CN108226288A (en) | A kind of subway tunnel railway roadbed comes to nothing quantity monitoring method | |
| CN104834012B (en) | Electromagnetic radiation monitoring early warning method of mine roof water inrush | |
| Zhang et al. | A new monitoring-while-drilling method of large diameter drilling in underground coal mine and their application | |
| CN103542893A (en) | Integrated landslide monitoring sensor | |
| CN103673940B (en) | Roof delamination and detrusion detection method and device | |
| CN201386558Y (en) | Seismic while drilling quality monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |