CN106768510A - Rock mass stress develops long-term real-time monitoring and rock burst early warning visualization device and method - Google Patents
Rock mass stress develops long-term real-time monitoring and rock burst early warning visualization device and method Download PDFInfo
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- CN106768510A CN106768510A CN201611102033.2A CN201611102033A CN106768510A CN 106768510 A CN106768510 A CN 106768510A CN 201611102033 A CN201611102033 A CN 201611102033A CN 106768510 A CN106768510 A CN 106768510A
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- rock burst
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 105
- 239000011435 rock Substances 0.000 title claims abstract description 94
- 230000007774 longterm Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012800 visualization Methods 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000002893 slag Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000001936 parietal effect Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 2
- 238000012806 monitoring device Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000000747 cardiac effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
Abstract
Develop long-term real-time monitoring and rock burst early warning visualization device and method the invention discloses a kind of rock mass stress, device is made up of monitoring club head, monitoring club body, monitoring rod bar tail and power plant module；Monitoring club body is arranged between monitoring club head and monitoring rod bar tail, and pressure sensor, microlens and drill bit are provided with outer wall.Monitoring club body has rock mass bolt action concurrently simultaneously, and it advances to rock mass inside and is placed in rock mass for a long time, and rock mass stress evolution is measured by the pressure sensor arranged on monitoring club body outer wall；After the data that pressure sensor measurement is obtained are processed by data processing module, the circumference stress of monitoring device surrounding rock body is calculated, and rock burst grade is predicted, finally by result in data display screen display；Image procossing and display module can in real time show the image that microlens shoot, and the image can be passed on external device and shown in real time by wireless signal transmitter.
Description
Technical field
The invention belongs to rock mass monitoring technical field, and in particular to a kind of rock mass stress develops long-term real-time monitoring and rock burst
Early warning visualization device and method.
Background technology
The method to rock mass stress monitoring has at present：Flat jack method, drilling set cardiac stress overcoring method, hydraulic fracturing.
Flat jack method is a kind of one-dimensional stress measuring method, can only measure stress point of the measurement point perpendicular to flat jack direction
Amount；Drilling set cardiac stress overcoring method releases front and rear aperture to calculate stress intensity and direction by measuring unit cardiac stress, but
The measurement error in aperture is larger, causes last stress calculating results error larger；Hydraulic fracturing requirement rock be it is complete,
Impermeability, and principal direction of stress measurement is inaccurate；In addition, these methods can not be entered to the stress of rock mass and microstructure
The long-term real-time monitoring of row.
The prediction of rock burst mainly uses field measurement method, but needs special monitoring device, such as Acoustic radiating instrument or micro seismic monitoring
System, is influenceed by measurement equipment precision and cost, is developed relatively slow.
The content of the invention
In order to solve the above-mentioned technical problem, develop long-term real-time monitoring the invention provides a kind of rock mass stress and rock burst is pre-
Alert visualization device and method.
The technical scheme that device of the invention is used is：A kind of rock mass stress develops long-term real-time monitoring and rock burst early warning
Visualization device, it is characterised in that：It is made up of monitoring club head, monitoring club body, monitoring rod bar tail and power plant module；The prison
Measuring staff head, monitoring club body, monitoring rod bar tail are removably joined together by connecting node；
The monitoring club head is internally provided with image procossing and display module, the first power supply, second source, signal amplify
Device, wireless signal transmitter, data display screen, data processing module；
The monitoring club body is internally provided with signal transmssion line, and microlens, first pressure sensing are provided with the wall of side
Device, small drill bit；
The monitoring rod bar tail is provided with big drill bit；Connecting node is internally provided with second pressure sensor；
The power plant module is made up of hydraulic control system and mechanical arm；The mechanical arm is fastened on the monitoring club head
On, for the power for applying to advance to described device；The hydraulic control system is used for the flexible of the mechanical arm；
First power supply, image procossing and display module, signal amplifier pass through signal transmssion line and microlens string
Then connection connection, the image that the microlens shoot shows by enhanced processing on image procossing and display module；It is described
First power supply, lighting mechanism adjuster, lighting mechanism are connected in series；
The second source, data display screen, data processing module by signal transmssion line and first pressure sensor and
Second pressure sensor series are connected, and the data that the first pressure sensor and second pressure sensor are measured are by the number
After being processed according to processing module, stress and rock burst grade are shown in the data display screen；
The wireless signal transmitter is connected with image procossing and display module, the image that microlens shoot is passed to outer
Shown in real time in boundary's equipment.
Preferably, described device is also configured with lighting mechanism adjuster, lighting mechanism, described image treatment and display mould
Block, lighting mechanism adjuster, lighting mechanism are connected in series；The lighting mechanism is arranged on the wall of the monitoring club body side.
Preferably, the monitoring club body is made up of central hollow layer, winding displacement layer, outer wall layer from the inside to surface；It is described outer
Big groove and little groove are provided with parietal layer；The microlens are arranged in big groove, and the lighting mechanism is arranged on small recessed
In groove.
Preferably, the connecting portion of the outer wall layer and big drill bit is provided with ball, second source, switch and motor；Institute
Second source, switch and motor is stated to be connected in series.
Preferably, the connecting node passes through threaded engagement together, that is, monitor the two ends external screw thread difference of club body
Internal thread with monitoring club head, monitoring rod bar tail is interlocked.
Preferably, the small drill bit and big drill bit are constituted by nozzle, scraper, center cutter, cutting knife, slag chute；It is described to scrape
Knife, center cutter and cutting knife cut to rock mass, and the rubble for getting out enters slag chute；The nozzle spray, so as to reduce dust, makes
Rock stratum is apparent in camera；The small drill bit internal is additionally provided with row's rubble passage.
Preferably, the outer wall of the monitoring club head, monitoring club body, monitoring rod bar tail is by high-strength steel making
Into.
Preferably, first pressure sensor and second pressure sensor are made by piezoelectric sensitivity material.
Preferably, the monitoring depth that can drill as needed of club body is extended, i.e., monitoring club head with
Extension rod is set between monitoring club body；There are internal thread and external screw thread in the two ends of the extension rod respectively, respectively with monitoring rod bar
The external screw thread of head and the internal thread of monitoring club body are attached；The side wall of the extension rod is provided with microlens, the first pressure
Force snesor and small drill bit.
The technical scheme that the method for the present invention is used is：A kind of rock mass stress develops long-term real-time monitoring and rock burst early warning
Method for visualizing, it is characterised in that comprise the following steps：
Step 1：The rock mass stress size for measuring as needed, selection have suitable voltage range first pressure sensor and
Second pressure sensor；
Step 2：A small drill bit on the wall of monitoring club body side is a apart from the distance of the shaft centre of form, now first pressure
The power that sensor is measured is q1；Another the small drill bit installed side by side with it is to a segment distance is pierced in rock mass after, apart from bar
The distance of the figure heart is b, and the power that now first pressure sensor is measured is q2；
Step 3：According to the stressing conditions and boundary condition of Elasticity thick cylinder, calculate at shaft centre of form r
Circumference stress is：
Step 4：Uniaxial compressive strength σ according to the local rock massc, then using σθ/σcRatio prediction rock burst grade：
Work as σθ/σc<When 0.3, without rock burst；When 0.3<σθ/σc<When 0.5, weak rock burst；When 0.5<σθ/σc<When 0.7, medium rock burst；Work as σθ/σc
>When 0.7, strong rock burst；
Step 5：The stress σ that second pressure sensor is measured carries out the prediction of rock burst also according to step 4.
It is an advantage of the invention that：
1st, due to monitoring device used shaft used by steel there is high intensity, therefore the monitoring device has anchor pole work concurrently
With, can to drilling play anchoring support effect.
2nd, it is respectively provided with the monitoring rod shaft part and monitoring rod tail portion junction of the monitoring device and shaft side wall
Force sensor, can carry out accurate measurement to the resistance that the drill bit of monitoring rod tail portion and shaft side wall are subject to.Data show
Display screen can in real time show the stress intensity and rock burst grade of rock mass.
3rd, the interior of the monitoring device is embedded with microlens, the image that image display panel can observe the camera lens
Show, because the power performance of unlike material rock stratum is different with picture characteristics, we can be very good to rock using the method
The material of layer is identified.
4th, image procossing and display module can in real time show the image that microlens shoot；Wireless signal transmitter and figure
As treatment and display module are connected, the image that microlens shoot is passed on mobile device, the mobile device equipped with receiver
The image can in real time be shown.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the monitoring rod head portion vertical section of the embodiment of the present invention；
Fig. 3 is the monitoring shaft partial longitudinal section of the embodiment of the present invention；
Fig. 4 is the vertical section of the extension rod of the monitoring shaft part of the embodiment of the present invention；
Fig. 5 is the monitoring rod tail portion vertical section of the embodiment of the present invention；
Fig. 6 is drawing in side sectional elevation of the embodiment of the present invention along A-A axles；
Fig. 7 is the connecting node of the embodiment of the present invention near the FS profilograph in monitoring device shaft part；
Fig. 8 is the connecting node of the embodiment of the present invention near monitoring device monitoring rod head portion or monitoring rod tail portion
FS profilograph；
Fig. 9 is the enlarged drawing in the monitoring rod tail portion vertical section of the embodiment of the present invention；
Figure 10 is the enlarged drawing in dotted line frame in embodiment of the present invention Fig. 5；
Figure 11 is the structure chart of drill bit used by the embodiment of the present invention；
Figure 12 is the calculation diagram of calculating rock mass stress in present invention method.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with the accompanying drawings and embodiment is to this hair
It is bright to be described in further detail, it will be appreciated that implementation example described herein is merely to illustrate and explain the present invention, not
For limiting the present invention.
See Fig. 1-Figure 11, a kind of rock mass stress that the present invention is provided develops long-term real-time monitoring and rock burst early warning visualization
Device, is made up of monitoring club head, monitoring club body, monitoring rod bar tail and power plant module；Monitoring club head, monitoring club body,
Monitoring rod bar tail is removably joined together by connecting node 12；Connecting node 12 has inside and outside two-layer, is divided into winding displacement layer
20 and outer wall layer 21, second pressure sensor 23 is provided between this two-layer；Monitoring club head be internally provided with image procossing and
Display module 1, the first power supply 201, second source 202, signal amplifier 3, lighting mechanism adjuster 4, wireless signal transmitter
5th, data display screen 6, data processing module 7；Monitoring club body is internally provided with signal transmssion line 9, is provided with the wall of side micro-
Camera lens 8, first pressure sensor 10, small drill bit 11, lighting mechanism 16；Monitoring rod bar tail is provided with big drill bit 13；Power plant module
It is made up of hydraulic control system 14 and mechanical arm 15；Mechanical arm 15 is fastened on monitoring club head, for applying to advance to device
Power；Hydraulic control system 14 is used for the flexible of mechanical arm 15；
First power supply 201, image procossing and display module 1, signal amplifier 3 are by signal transmssion line 9 and microlens 8
It is connected in series, then the image that microlens 8 shoot shows by enhanced processing on image procossing and display module 1；First
Power supply 201, lighting mechanism adjuster 4, lighting mechanism 16 are connected in series；
Second source 202, data display screen 6, data processing module 7 are by signal transmssion line 9 and first pressure sensor
10 and second pressure sensor 23 be connected in series, data that first pressure sensor 10 and second pressure sensor 23 are measured are passed through
After the treatment of data processing module 7, show stress and rock burst grade (without rock burst, weak rock burst, middle isolith in data display screen 6
Quick-fried, strong rock burst)；Wireless signal transmitter 5 is connected with image procossing and display module 1, and the image that microlens 8 shoot is passed to
Shown in real time on external device.
If monitoring club body is shorter, extension rod 34 can be set between monitoring club head and monitoring club body；Extension
The side wall of bar 34 is provided with microlens 8, first pressure sensor 10 and small drill bit 11.Monitoring rod as needed can be by more piece
The connection of extension rod 34 forms monitoring rod more long, gos deep into rock mass.
Connecting node 12 is interlocked by screw thread 22, that is, monitor club body two ends external screw thread respectively with head portion,
The internal thread of tail portion is interlocked；The end of monitoring rod bar tail is provided with big drill bit 13；Outer wall layer 21 and big drill bit 13
Connecting portion be provided with ball 25, second source 26, switch 27 and motor 28.
2 first pressure sensors 10 and 3 small drill bits 11 placed side by side are provided with the wall of monitoring club body side, they
Apparent height protrude sidewall surfaces 0.2~0.5mm；The row of the being internally provided with rubble passage 24 of small drill bit 11.Monitoring club head,
Monitoring club body, the outer wall of monitoring rod bar tail are made by high-strength steel；First pressure sensor 10 and second pressure are sensed
Device 23 is made by piezoelectric ceramics or piezoelectric sensitivity material.Small drill bit 11 and big drill bit 13 are by nozzle 29, scraper 30, center cutter
31st, cutting knife 32, slag chute 33 are constituted；The scraper 30, center cutter 31 and cutting knife 32 cut to rock mass, and the rubble for getting out enters
Slag chute 33；The nozzle 29 is sprayed water, so as to reduce dust, makes rock stratum apparent in camera.
The lighting mechanism 16 of the present embodiment is LED white lights.
See Figure 12, a kind of rock mass stress that the present invention is provided develops long-term real-time monitoring and rock burst early warning visualization side
Method, comprises the following steps：
Step 1：According to the rock mass stress size to be measured, selection has the He of first pressure sensor 10 of suitable voltage range
Second pressure sensor 23；
Step 2：A small drill bit 11 on the wall of monitoring shaft side is a apart from the distance of the shaft centre of form, now first pressure
The power that sensor 10 is measured is q1；Another the small drill bit 11 installed side by side with it is to a segment distance is pierced in rock mass after, away from
It is b with a distance from the shaft centre of form, the power that now first pressure sensor 10 is measured is q2；
Step 3：According to the stressing conditions and boundary condition of Elasticity thick cylinder, can calculate apart from the shaft centre of form
Circumference stress is at r：
Step 4：Consult reference materials or measure the uniaxial compressive strength σ for obtaining the local rock massc, then using σθ/σcRatio
Prediction rock burst grade：Work as σθ/σc<When 0.3, without rock burst；When 0.3<σθ/σc<When 0.5, weak rock burst；When 0.5<σθ/σc<When 0.7, in
Deng rock burst；Work as σθ/σc>When 0.7, strong rock burst.
Step 5：The stress σ that second pressure sensor 23 is measured carries out the prediction of rock burst also according to step 4.
Although this specification more used image procossing and display module 1, the first power supply 201, second source 202,
Signal amplifier 3, lighting mechanism adjuster 4, wireless signal transmitter 5, data display screen 6, data processing module 7, microscope
First 8, signal transmssion line 9, first pressure sensor 10, small drill bit 11, connecting node 12, big drill bit 13, hydraulic control system 14,
Mechanical arm 15, lighting mechanism 16, big groove 17, little groove 18；Central hollow layer 19, winding displacement layer 20, outer wall layer 21, screw thread 22,
Second pressure sensor 23, row's rubble passage 24, ball 25, second source 26, switch 27 and motor 28, nozzle 29, scraper 30,
The terms such as center cutter 31, cutting knife 32, slag chute 33, but it is not precluded from using the possibility of other terms.Using these terms only
It is that, in order to more easily describe essence of the invention, being construed as any additional limitation is all and present invention spirit
Disagree.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
It should be appreciated that the above-mentioned description for preferred embodiment is more detailed, therefore can not be considered to this
The limitation of invention patent protection scope, one of ordinary skill in the art is not departing from power of the present invention under enlightenment of the invention
Profit requires under protected ambit, can also make replacement or deform, each falls within protection scope of the present invention, this hair
It is bright scope is claimed to be determined by the appended claims.
Claims (10)
1. a kind of rock mass stress develops long-term real-time monitoring and rock burst early warning visualization device, it is characterised in that：By monitoring rod bar
Head, monitoring club body, monitoring rod bar tail and power plant module composition；The monitoring club head, monitoring club body, monitoring rod bar tail are equal
It is removably joined together by connecting node (12)；
The monitoring club head is internally provided with image procossing and display module (1), the first power supply (201), second source
(202), signal amplifier (3), wireless signal transmitter (5), data display screen (6), data processing module (7)；
The monitoring club body is internally provided with signal transmssion line (9), microlens (8), first pressure is provided with the wall of side and is passed
Sensor (10), small drill bit (11)；
The monitoring rod bar tail is provided with big drill bit (13)；Connecting node (12) is internally provided with second pressure sensor (23)；
The power plant module is made up of hydraulic control system (14) and mechanical arm (15)；The mechanical arm (15) is fastened on the prison
In measuring staff head, for the power for applying to advance to described device；The hydraulic control system (14) is for the mechanical arm
(15) flexible；
First power supply (201), image procossing and display module (1), signal amplifier (3) by signal transmssion line (9) with
Microlens (8) are connected in series, the image that the microlens (8) shoot by enhanced processing, then in image procossing and aobvious
Show and shown in module (1)；First power supply (201), lighting mechanism adjuster (4), lighting mechanism (16) are connected in series；
The second source (202), data display screen (6), data processing module (7) are by signal transmssion line (9) and the first pressure
Force snesor (10) and second pressure sensor (23) are connected in series, and the first pressure sensor (10) and second pressure are sensed
The data that device (23) is measured by the data processing module (7) treatment after, the data display screen (6) show stress with
And rock burst grade；
The wireless signal transmitter (5) is connected with image procossing and display module (1), the image that microlens (8) are shot
Pass on external device and show in real time.
2. rock mass stress according to claim 1 develops long-term real-time monitoring and rock burst early warning visualization device, its feature
It is：The lighting mechanism (16) is arranged on the wall of the monitoring club body side.
3. rock mass stress according to claim 2 develops long-term real-time monitoring and rock burst early warning visualization device, its feature
It is：The monitoring club body is made up of central hollow layer (19), winding displacement layer (20), outer wall layer (21) from the inside to surface；It is described outer
Big groove (17) and little groove (18) are provided with parietal layer (21)；The microlens (8) are described in big groove (17)
Lighting mechanism (16) is in little groove (18).
4. rock mass stress according to claim 3 develops long-term real-time monitoring and rock burst early warning visualization device, its feature
It is：The connecting portion of the outer wall layer (21) and big drill bit (13) be provided with ball (25), second source (26), switch (27) and
Motor (28)；The second source (26), switch (27) and motor (28) are connected in series.
5. rock mass stress according to claim 1 develops long-term real-time monitoring and rock burst early warning visualization device, its feature
It is：The connecting node (12) is interlocked by screw thread (22), that is, monitor club body two ends external screw thread respectively with prison
Measuring staff head, the internal thread of monitoring rod bar tail are interlocked.
6. the rock mass stress according to claim 1-5 any one develops long-term real-time monitoring and rock burst early warning is visually disguised
Put, it is characterised in that：The small drill bit (11) and big drill bit (13) are by nozzle (29), scraper (30), center cutter (31), cutting knife
(32), slag chute (33) composition；The scraper (30), center cutter (31) and cutting knife (32) cut to rock mass, the rubble for getting out
Into slag chute (33)；Nozzle (29) water spray, so as to reduce dust, makes rock stratum apparent in camera；The small drill bit
(11) internal row's of being additionally provided with rubble passage (24).
7. the rock mass stress according to claim 1-5 any one develops long-term real-time monitoring and rock burst early warning is visually disguised
Put, it is characterised in that：The monitoring club head, monitoring club body, the outer wall of monitoring rod bar tail are made by high-strength steel.
8. the rock mass stress according to claim 1-5 any one develops long-term real-time monitoring and rock burst early warning is visually disguised
Put, it is characterised in that：First pressure sensor (10) and second pressure sensor (23) are made by piezoelectric sensitivity material.
9. the rock mass stress according to claim 1-5 any one develops long-term real-time monitoring and rock burst early warning is visually disguised
Put, it is characterised in that：The depth that the monitoring club body can be drilled as needed is extended, i.e., in monitoring club head and monitoring
Extension rod (34) is set between club body；There are internal thread and external screw thread in the two ends of the extension rod (34) respectively, respectively with monitoring
The external screw thread of club head and the internal thread of monitoring club body are attached；The side wall of the extension rod (34) is provided with microlens
(8), first pressure sensor (10) and small drill bit (11).
10. a kind of rock mass stress develops long-term real-time monitoring and rock burst early warning method for visualizing, it is characterised in that including following step
Suddenly：
Step 1：The rock mass stress size for measuring as needed, selection has the pressure sensor (10) and second of suitable voltage range
Pressure sensor (23)；
Step 2：A small drill bit (11) on the wall of monitoring club body side is a apart from the distance of the shaft centre of form, now first pressure
The power that sensor (10) is measured is q1；Another the small drill bit (11) installed side by side with it is to piercing a segment distance in rock mass
Afterwards, the distance apart from the shaft centre of form is b, and the power that now first pressure sensor (10) is measured is q2；
Step 3：According to the stressing conditions and boundary condition of Elasticity thick cylinder, the ring at shaft centre of form r is calculated
Stress is：
Step 4：Uniaxial compressive strength σ according to the local rock massc, then using σθ/σcRatio prediction rock burst grade：Work as σθ/
σc<When 0.3, without rock burst；When 0.3<σθ/σc<When 0.5, weak rock burst；When 0.5<σθ/σc<When 0.7, medium rock burst；Work as σθ/σc>0.7
When, strong rock burst；
Step 5：The stress σ that second pressure sensor (23) is measured carries out the prediction of rock burst also according to step 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102033.2A CN106768510B (en) | 2016-12-05 | 2016-12-05 | Rock mass stress develops long-term real-time monitoring and rock burst early warning visualization device and method |
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|---|---|---|---|
| CN201611102033.2A CN106768510B (en) | 2016-12-05 | 2016-12-05 | Rock mass stress develops long-term real-time monitoring and rock burst early warning visualization device and method |
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| CN106768510B CN106768510B (en) | 2019-03-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421588A (en) * | 2017-08-25 | 2017-12-01 | 吉林建筑大学 | Optical fiber grating sensing safety monitoring system in mine using novel anchor rod as sensing media |
| CN116973549A (en) * | 2023-09-20 | 2023-10-31 | 中铁四局集团有限公司 | Rock burst prediction method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421588A (en) * | 2017-08-25 | 2017-12-01 | 吉林建筑大学 | Optical fiber grating sensing safety monitoring system in mine using novel anchor rod as sensing media |
| CN107421588B (en) * | 2017-08-25 | 2020-03-31 | 吉林建筑大学 | Fiber bragg grating sensing mine safety monitoring system with anchor rod as sensing medium |
| CN116973549A (en) * | 2023-09-20 | 2023-10-31 | 中铁四局集团有限公司 | Rock burst prediction method and system |
| CN116973549B (en) * | 2023-09-20 | 2024-01-30 | 中铁四局集团有限公司 | Rock burst prediction method and system |
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