CN105781620A - Power disaster early warning method based on roadway surrounding rock fracture auxiliary hole monitoring - Google Patents
Power disaster early warning method based on roadway surrounding rock fracture auxiliary hole monitoring Download PDFInfo
- Publication number
- CN105781620A CN105781620A CN201610266198.7A CN201610266198A CN105781620A CN 105781620 A CN105781620 A CN 105781620A CN 201610266198 A CN201610266198 A CN 201610266198A CN 105781620 A CN105781620 A CN 105781620A
- Authority
- CN
- China
- Prior art keywords
- monitoring
- via hole
- holes
- acoustic emission
- 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 92
- 239000011435 rock Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000003245 coal Substances 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 5
- 230000006378 damage Effects 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000005065 mining Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000011081 inoculation Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 6
- 230000010429 evolutionary process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention provides a power disaster early warning method based on roadway surrounding rock fracture auxiliary hole monitoring, and belongs to the technical field of mining engineering and geotechnical engineering power disaster monitoring and early warning. According to the method, through the arrangement and distribution of auxiliary holes, the roadway surrounding rock fracturing process in the power disaster inoculation and evolution process is shown on the periphery of the auxiliary holes; by using a mode of forming monitoring holes and installing sensors in the monitoring holes, the effective signal attenuation and the construction noise interference are reduced; the hole wall surrounding rock micro fracturing state of the auxiliary holes is directly monitored; the power disaster is monitored in real time. The method overcomes the defect of low accuracy of the monitoring result caused by complicated operation and real-time monitoring incapability of a chip drilling method (performing early warning by aiming at coal mine impact ground pressure) and weak effective signal and strong noise interference of a sound emitting method. The safety and the effectiveness of the mining engineering and geotechnical engineering power disaster monitoring are improved.
Description
Technical field
The present invention relates to mining engineering, the monitoring of Geotechnical Engineering dynamic disaster and early warning technology field, particularly relate to the dynamic disaster method for early warning of a kind of via hole monitoring of breaking based on roadway surrounding rock.
Background technology
In dynamic disaster (coal mine rock burst, hard rock rock burst etc.) monitoring and warning field, for coal mine rock burst, forecast when participating in the cintest both domestic and external is main based on drilling cuttings method at present, is only that the warning index used by each mine is different.Coal powder quantity of bore is the reflection of rock masses fracturing state in drilling cuttings hole, is the aggregative indicator comprising the factors such as mining induced stress, coal properties, prominent environment.
The outstanding advantages of drilling cuttings method is the reliability of its practicality and method, its prominent shortcoming is the complexity of operating process in implementation process, the operating error varied with each individual and can not monitor continuously and real-time early warning, thus causing useful information to be omitted and occurring to carry out early warning to pressing with impacting accurately and efficiently.
The methods such as country rock near field state of rupture all commonly used acoustic emissions of coal and rock and hard rock rock mass are monitored, acoustic emission monitor(ing) is the important technical in brittle rock mass dynamic disaster monitoring and warning, directly reflection rock rupture state, relatively accurately, and it is capable of real-time monitoring, give warning in advance.
Dou Lin distinguished professor is equal within 2011, having delivered " the sound emission monitoring technology research of impulsion pressure " paper in " rock-soil mechanics ", discuss the feasibility utilizing Acoustic Emission Evaluation Hazards of Rock Burst, it is proposed that the division etc. of the expression way of acoustic emission index, the determination of critical indicator and danger classes that Hazards of Rock Burst is evaluated.Peng Qi is equal within 2009, having delivered " based on AE seasonal effect in time series model for predicting rock burst " paper in " rock-soil mechanics ", according to acoustic emission (AE) seasonal effect in time series feature in on-the-spot rock-burst monitoring, adopt 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 is directly accurately, can monitor in real time, its prominent shortcoming is that destruction signals intensity is weak, sensor is serious by noise jamming simultaneously, and result owes reliable, acoustic emission useful signal extracts mistake, acoustic emission is sentenced the series of problems such as knowledge method inefficacy and happened occasionally to cause acoustic emission signal data inversion to be analyzed.
Summary of the invention
The technical problem to be solved in the present invention is to provide the dynamic disaster method for early warning of a kind of via hole monitoring of breaking based on roadway surrounding rock, in conjunction with drilling cuttings method early warning ultimate principle and acoustic emission monitor(ing) means, and overcome the deficiency of the two, the country rock rupture process bred by dynamic disaster in evolutionary process is revealed in via hole periphery, directly monitoring via hole hole wall country rock micro rupture state, and reduce useful signal decay and construction noise interference by the mode being installed in monitoring holes by sensor.
The method comprises the steps:
One, arrange at roadway's sides that the acoustic emission sensor that the distance of monitoring holes and via hole, monitoring holes and via hole meets in all monitored holes of energy of the destruction signals within the scope of via hole receives；
Two, in monitoring holes, lay acoustic emission sensor, each monitoring holes is laid 1-5 acoustic emission sensor, after having laid, monitoring holes aperture is closed；
Three, breeding evolution different phase acoustie emission event correspondence threshold value according to disaster, adopt acoustic emission Real-time Collection monitoring system, the via hole hole wall coal petrography Surface Rupture Events that the change of country rock internal stress is caused carries out dynamic monitoring, it is achieved dynamic disaster dynamic early-warning.
Wherein, taking supporting measure to avoid cell wall rupture in the monitoring holes of step one, via hole hole wall does not carry out supporting process, keeps open-hole state, when surrouding rock stress increases, the change of via hole hole wall country rock micro rupture state development, is that dynamic disaster breeds the most directly reflecting of evolutionary process.
In step one, the degree of depth of via hole is determined according to monitoring country rock area size, and the monitoring holes degree of depth is smaller than the via hole degree of depth.Via hole is determined depending on lithology, operating condition etc. with monitoring holes spacing and relative position.The hole depth of via hole and monitoring holes and cloth hole site basic design principles are that the sensor ensured in the destruction signals all monitored holes of energy within the scope of via hole receives.One group of monitoring holes and via hole can be adopted, may be used without many group monitoring holes and via hole, adjacent via hole spacing is depending on rock power disaster tendentiousness, dynamic disaster danger upper zone should be laid closeer, form the real-time monitoring net of roadway's sides, but via hole spacing is no less than acoustic emission signal propagation distance, it is to avoid the monitor signal of adjacent via hole interferes.
Rational choice wall of hole and sensor installation method in monitoring holes, aperture sealing of hole after installation, it is ensured that sensor signal reception.
The monitoring holes acoustic emission signal reception at on-the-spot test different depth place, it is determined that the parameter such as via hole and the monitoring holes degree of depth, via hole and monitoring holes spacing, adjacent via hole spacing, acoustic emission sensor installation position.
Determine that monitored area dynamic disaster breeds evolution different phase and corresponding threshold value crucial thereof according to historical record, on-the-spot test with theory analysis.
In step 3, acoustic emission Real-time Collection monitoring system includes monitoring main frame, data transmission system, power supply, Acquisition Instrument, rosette and acoustic emission sensor, rosette is connected between acoustic emission sensor and Acquisition Instrument, power supply is powered to Acquisition Instrument by supply lines, the signal that acoustic emission sensor receives is through rosette and holding wire transmission to Acquisition Instrument, and the signal that Acquisition Instrument is collected transmits to monitoring main frame then through data transmission system.Monitoring main frame is used for processing, showing Real-time Monitoring Data, according to threshold value crucial set in advance, shows the probability that dynamic disaster occurs continuously, intuitively, thus dynamic disaster breeding evolution different phase carry out dynamic early-warning.
Having the beneficial effect that of the technique scheme of the present invention:
The roadway surrounding rock rupture process that dynamic disaster is bred in evolutionary process by the method by laying via hole is revealed in via hole periphery, useful signal decay and on-site noise interference is reduced by laying monitoring holes the mode that is installed in monitoring holes by sensor, directly monitoring via hole hole wall country rock micro rupture state, overcome the deficiency of drilling cuttings method and existing acoustic emission method, dynamic disaster is monitored in real time.Instant invention overcomes drilling cuttings method (for coal mine rock burst early warning) complex operation, can not monitor in real time and acoustic-emission useful signal is weak, noise jamming causes that by force monitoring result owes defect accurately, improve safety and the effectiveness of bump monitoring.
Accompanying drawing explanation
Fig. 1 is cloth hole, the tunnel schematic diagram of dynamic disaster method for early warning of the via hole monitoring of breaking based on roadway surrounding rock of the present invention；
Fig. 2 is the acoustic emission Real-time Collection monitoring system structure schematic diagram of the present invention；
Fig. 3 is the bump dynamic early-warning threshold value schematic diagram of the present invention.
Wherein: 1-monitoring holes；2-via hole；3-acoustic emission sensor；4-rosette；5-holding wire；6-power supply；7-supply lines；8-Acquisition Instrument；9-data transmission system；10-monitors main frame.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention based on roadway surrounding rock break via hole monitoring dynamic disaster method for early warning, utilize the mode laying via hole, the roadway surrounding rock rupture process bred by dynamic disaster in evolutionary process is revealed in via hole periphery, and monitored in real time by sound emission monitoring technology means, dynamic early-warning, and reduce useful signal decay and construction noise interference by the mode being installed in monitoring holes by sensor.
The method specifically comprises the following steps that
One, as shown in Figure 1, monitoring holes 1 and via hole 2 is arranged at roadway's sides, the acoustic emission sensor 3 that the distance of monitoring holes 1 and via hole 2 meets in all monitored holes 1 of energy of the destruction signals in via hole 2 scope receives, monitoring holes 1 take supporting measure to avoid cell wall rupture, via hole 2 hole wall does not carry out supporting process, keeping open-hole state, when surrouding rock stress increases, the change of hole wall country rock micro rupture state development, is that dynamic disaster breeds the most directly reflecting of evolutionary process；The degree of depth of via hole 2 is determined according to monitoring country rock area size, and monitoring holes 1 degree of depth is smaller than via hole 2 degree of depth, and via hole 2 is determined depending on lithology, operating condition etc. with monitoring holes 1 spacing and relative position；One group of monitoring holes 1 and via hole 2 can be adopted, may be used without many group monitoring holes 1 and via hole 2, the spacing of adjacent via hole 2 is depending on rock power disaster tendentiousness, deathtrap should be laid closeer, form the real-time monitoring net of roadway's sides, but spacing is no less than acoustic emission signal propagation distance, it is to avoid the monitor signal of adjacent via hole 2 interferes.
Two, in monitoring holes 1, lay acoustic emission sensor 3, each monitoring holes 1 is laid 3 acoustic emission sensors 3, after having laid, monitoring holes 1 aperture is closed；
Three, evolution different phase acoustie emission event correspondence threshold value (Fig. 3) is bred according to disaster, adopt acoustic emission Real-time Collection monitoring system, the via hole 2 hole wall coal petrography Surface Rupture Events that the change of country rock internal stress is caused carries out dynamic monitoring, it is achieved bump dynamic early-warning.Wherein, as shown in Figure 2, acoustic emission is implemented to gather in monitoring system, rosette 4 is connected between acoustic emission sensor 3 and Acquisition Instrument 8, power supply 6 powers to Acquisition Instrument 8 by supply lines 7, the signal that acoustic emission sensor 3 receives transmits to Acquisition Instrument 8 through rosette 4 and holding wire 5, and the signal that Acquisition Instrument 8 is collected is then through data transmission system 9 transmission to monitoring main frame 10.
In actual mechanical process, the monitoring holes 1 acoustic emission signal reception at on-the-spot test different depth place, it is determined that the parameter such as via hole 2 and the degree of depth of monitoring holes 1, via hole 2 and the spacing of monitoring holes 1, the spacing of adjacent via hole 2, acoustic emission sensor 3 installation position.
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. one kind based on roadway surrounding rock break via hole monitoring dynamic disaster method for early warning, it is characterised in that: comprise the steps:
One, arrange that the acoustic emission sensor (3) that the distance of monitoring holes (1) and via hole (2), monitoring holes (1) and via hole (2) meets in all monitored hole of the energy (1) of the destruction signals in via hole (2) scope receives at roadway's sides；
Two, in monitoring holes (1), lay acoustic emission sensor (3), each monitoring holes (1) is laid 1-5 acoustic emission sensor (3), after having laid, monitoring holes (1) aperture is closed；
Three, evolution different phase acoustie emission event correspondence threshold value is bred according to disaster, adopt acoustic emission Real-time Collection monitoring system, via hole (2) the hole wall coal petrography Surface Rupture Events that the change of country rock internal stress is caused carries out dynamic monitoring, it is achieved dynamic disaster dynamic early-warning.
2. the dynamic disaster method for early warning of via hole monitoring of breaking based on roadway surrounding rock according to claim 1, it is characterized in that: the monitoring holes (1) of described step one takes supporting measure to avoid cell wall rupture, via hole (2) hole wall does not carry out supporting process, keeps open-hole state.
3. the dynamic disaster method for early warning of via hole monitoring of breaking based on roadway surrounding rock according to claim 1, it is characterized in that: in described step one, the degree of depth of via hole (2) is determined according to monitoring country rock area size, and monitoring holes (1) degree of depth is less than via hole (2) degree of depth.
4. the dynamic disaster method for early warning of via hole monitoring of breaking based on roadway surrounding rock according to claim 1, it is characterised in that: described step one adopts a group or more monitoring holes (1) and via hole (2).
5. the dynamic disaster method for early warning of via hole monitoring of breaking based on roadway surrounding rock according to claim 1, it is characterized in that: in described step 3, acoustic emission Real-time Collection monitoring system includes monitoring main frame (10), data transmission system (9), power supply (6), Acquisition Instrument (8), rosette (4) and acoustic emission sensor (3), rosette (4) is connected between acoustic emission sensor (3) and Acquisition Instrument (8), power supply (6) is powered to Acquisition Instrument (8) by supply lines (7), the signal that acoustic emission sensor (3) receives is through rosette (4) and holding wire (5) transmission to Acquisition Instrument (8), the signal that Acquisition Instrument (8) is collected transmits to monitoring main frame (10) then through data transmission system (9).
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 true CN105781620A (en) | 2016-07-20 |
| CN105781620B 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) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437853A (en) * | 2016-09-27 | 2017-02-22 | 西安科技大学 | Method for early warning against coal rock burst dynamic disasters |
| CN106640194A (en) * | 2016-09-27 | 2017-05-10 | 西安科技大学 | Forewarning method for composite type coal rock gas dynamical disasters |
| 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 |
| CN109991313A (en) * | 2019-03-11 | 2019-07-09 | 北京安科兴业科技股份有限公司 | Acoustic emission monitor(ing) device and the acoustic emission monitor(ing) method for utilizing the device |
| 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 |
| CN111322116A (en) * | 2020-04-07 | 2020-06-23 | 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 |
| CN116448883A (en) * | 2023-06-13 | 2023-07-18 | 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267977A (en) * | 2013-04-24 | 2013-08-28 | 山东理工大学 | Underground construction surrounding 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 |
| CN104989456A (en) * | 2015-07-24 | 2015-10-21 | 青岛理工大学 | Large-span underground engineering surrounding rock excavation stability monitoring and early warning method |
| CN105484802A (en) * | 2016-01-15 | 2016-04-13 | 西安科技大学 | Coal mine rock burst united monitoring and early warning system and monitoring and early warning method thereof |
-
2016
- 2016-04-26 CN CN201610266198.7A patent/CN105781620B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267977A (en) * | 2013-04-24 | 2013-08-28 | 山东理工大学 | Underground construction surrounding 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 |
| CN104989456A (en) * | 2015-07-24 | 2015-10-21 | 青岛理工大学 | Large-span underground engineering surrounding rock excavation stability monitoring and early warning method |
| CN105484802A (en) * | 2016-01-15 | 2016-04-13 | 西安科技大学 | Coal mine rock burst united monitoring and early warning system and monitoring and early warning method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘志刚: "基于声发射原理的冲击地压监测装备研究及应用", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437853A (en) * | 2016-09-27 | 2017-02-22 | 西安科技大学 | Method for early warning against coal rock burst dynamic disasters |
| CN106640194A (en) * | 2016-09-27 | 2017-05-10 | 西安科技大学 | Forewarning method for composite type coal rock gas dynamical disasters |
| 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 |
| CN109991313A (en) * | 2019-03-11 | 2019-07-09 | 北京安科兴业科技股份有限公司 | Acoustic emission monitor(ing) device and the acoustic emission monitor(ing) method for utilizing the device |
| CN109991313B (en) * | 2019-03-11 | 2024-04-19 | 北京安科兴业科技股份有限公司 | Acoustic emission monitoring device and acoustic emission monitoring method using same |
| 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 |
| CN111322116A (en) * | 2020-04-07 | 2020-06-23 | 北京科技大学 | Method and device for monitoring mining surrounding rock ground pressure disaster in real time |
| 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 |
| CN116448883A (en) * | 2023-06-13 | 2023-07-18 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105781620B (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105781620A (en) | Power disaster early warning method based on roadway surrounding rock fracture auxiliary hole monitoring | |
| CN107476822B (en) | Coal Seam Outburst Hazard measuring while drilling method and device | |
| CN113050159B (en) | Coal rock hydraulic fracturing crack micro-seismic positioning and propagation mechanism monitoring method | |
| WO2019161593A1 (en) | Monitoring and early warning method for electromagnetic radiation and underground sound of coal and rock dynamic disaster hazard | |
| CN107387166B (en) | Real-time monitoring and early warning system and method for failure depth of coal seam floor of stope face | |
| CN204462405U (en) | A kind of rock burst omen early warning system based on acoustic emission | |
| CN111648826B (en) | Coal mine rock burst prediction early warning system and method | |
| CN105484802B (en) | A kind of coal mine rock burst combined monitoring early warning system and its monitoring and pre-alarming method | |
| CN106437854B (en) | Distributed coal rock dynamic disaster acoustic-electric synchronous monitoring system and method | |
| CN103410568B (en) | Dynamic mine disaster integral early warning method and device | |
| CN202300529U (en) | Slight shock monitoring sensor arrangement structure in deeply buried long tunnel boring machine (TBM) tunneling process | |
| Zhang et al. | A new monitoring-while-drilling method of large diameter drilling in underground coal mine and their application | |
| CN114412573B (en) | Mine wall breakage monitoring and early warning system and method | |
| CN102997886A (en) | Monitoring method for remotely measuring and controlling damage depths of floor strata | |
| CN111042866A (en) | Multi-physical-field cooperative water inrush monitoring method | |
| CN205743991U (en) | A kind of coal mine rock burst combined monitoring early warning system | |
| Zhao et al. | Multi-sensing investigation of crack problems for concrete dams based on detection and monitoring data: a case study | |
| Ma et al. | Microseismic monitoring, positioning principle, and sensor layout strategy of rock mass engineering | |
| Zhang et al. | Vibration events in underground heading face and useful index for rock burst monitoring | |
| CN205714288U (en) | The dynamic disaster early warning system of via hole monitoring is ruptured based on roadway surrounding rock | |
| CN211577443U (en) | Microseism sensor for tracking and acquiring concentrated stress change of mine in real time | |
| Zhang et al. | A multi-channel verification index to improve distinguish accuracy of target signals in rock burst monitoring of heading face | |
| CN204705721U (en) | Tunnel geological prediction seismic event excitation apparatus | |
| CN203452852U (en) | Mine dynamic disaster integrated early warning device | |
| CN203239395U (en) | Intelligent anchor rod early warning and monitoring system for roadway surrounding rock disaster |
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 |