CN106768510B - 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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- CN106768510B CN106768510B CN201611102033.2A CN201611102033A CN106768510B CN 106768510 B CN106768510 B CN 106768510B CN 201611102033 A CN201611102033 A CN 201611102033A CN 106768510 B CN106768510 B CN 106768510B
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- monitoring
- rock
- pressure sensor
- drill bit
- rock mass
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 94
- 239000011435 rock Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007774 longterm Effects 0.000 title claims abstract description 12
- 238000012800 visualization Methods 0.000 title claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 17
- 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
- 239000000428 dust Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 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
- 238000011161 development Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000747 cardiac effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001936 parietal effect Effects 0.000 description 1
- 239000012925 reference material Substances 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
The invention discloses a kind of rock mass stresses to develop long-term real-time monitoring and rock burst early warning visualization device and method, and device is made of monitoring club head, monitoring club body, monitoring rod bar tail and power plant module；Club body setting is monitored between monitoring club head and monitoring rod bar tail, and is provided with pressure sensor, microlens and drill bit on outer wall.Monitoring club body has both rock mass bolt action simultaneously, advances to inside rock mass and is placed in rock mass for a long time, and rock mass stress development process is measured by the pressure sensor arranged on monitoring club body outer wall；After the data that pressure sensor measurement obtains are handled by data processing module, the circumference stress of monitoring device surrounding rock body is calculated, and rock burst grade is predicted, finally shows result on data display screen；The image that image procossing and display module can be shot with real-time display microlens, and the image can be passed to real-time display on external device by wireless signal transmitter.
Description
Technical field
The invention belongs to rock mass monitoring technical fields, 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 technique
Have at present to the method for rock mass stress monitoring: flat jack method, drilling set cardiac stress overcoring method, hydraulic fracturing.
Flat jack method is a kind of one-dimensional stress measurement method, can only measure measurement point perpendicular to the stress point in flat jack direction
Amount；Drilling set cardiac stress overcoring method releases the aperture of front and back by measuring unit cardiac stress, to calculate stress intensity and direction, still
The measurement error in aperture is larger, causes last stress calculating results error larger；Hydraulic fracturing require rock be it is complete,
Impermeability, and principal direction of stress measurement inaccuracy；In addition, these methods cannot stress to rock mass and microstructure into
The long-term real-time monitoring of row.
The prediction of rock burst mainly uses field measurement method, but needs dedicated monitoring device, such as Acoustic radiating instrument or micro seismic monitoring
System is influenced by measurement equipment precision and cost, is developed relatively slow.
Summary of the invention
Develop long-term real-time monitoring in order to solve the above-mentioned technical problems, the present invention provides a kind of rock mass stress and rock burst is pre-
Alert visualization device and method.
Technical solution used by the device of the invention 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: be made 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 amplification
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 on side wall
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 of hydraulic control system and mechanical arm；The mechanical arm is fastened on the monitoring club head
On, for applying the power to advance to described device；The hydraulic control system is 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
The image of connection connection, the microlens shooting passes through enhanced processing, then shows 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
The data that the connection of second pressure sensor series, the first pressure sensor and second pressure sensor measure are by the number
After handling 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 are shot is passed to outer
Real-time display in boundary's equipment.
Preferably, described device is also configured with lighting mechanism adjuster, lighting mechanism, described image processing and display mould
Block, lighting mechanism adjuster, lighting mechanism are connected in series；The lighting mechanism is arranged on the monitoring club body side wall.
Preferably, the monitoring club body is made 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 on parietal layer；The microlens are mounted in big groove, and the lighting mechanism is mounted on small recessed
In slot.
Preferably, the interconnecting piece 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, i.e. the both ends external screw thread of monitoring club body is distinguished
It is interlocked with the internal screw thread of monitoring club head, monitoring rod bar tail.
Preferably, the small drill bit and big drill bit are made of nozzle, scraper, center cutter, cutter, slag chute；It is described to scrape
Knife, center cutter and cutter cut rock mass, and the rubble drilled out enters slag chute；The nozzle spray makes to reduce dust
Rock stratum is apparent in camera；The small drill bit internal is additionally provided with row rubble channel.
Preferably, it is described monitoring club head, monitoring club body, monitoring rod bar tail outer wall by high-strength steel make and
At.
Preferably, first pressure sensor and second pressure sensor are made by piezoelectric sensitivity material.
Preferably, the depth that can drill as needed of monitoring club body is extended, i.e., monitoring club head with
Extension rod is set between monitoring club body；There are internal screw thread and external screw thread in the both ends of the extension rod respectively, respectively with monitoring rod bar
The external screw thread of head and the internal screw 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.
Technical solution used by method of the invention is: a kind of rock mass stress develops long-term real-time monitoring and rock burst early warning
Method for visualizing, which comprises the following steps:
Step 1: the rock mass stress size measured as needed, selection have suitable voltage range first pressure sensor and
Second pressure sensor；
Step 2: distance of the small drill bit apart from shaft centroid on monitoring club body side wall is a, at this time first pressure
The power that sensor measures is q1；After another the small drill bit installed side by side with it pierces a distance into rock mass, apart from bar
The distance of the figure heart is b, and the power that first pressure sensor measures at this time is q2；
Step 3: according to the stress condition and boundary condition of Elasticity thick cylinder, being calculated at shaft centroid r
Circumference stress are as follows:
Step 4: according to the uniaxial compressive strength σ of the place rock massc, then utilize σθ/σcRatio predict rock burst grade:
Work as σθ/σcWhen < 0.3, no rock burst；As 0.3 < σθ/σcWhen < 0.5, weak rock burst；As 0.5 < σθ/σcWhen < 0.7, medium rock burst；Work as σθ/σc
When > 0.7, strong rock burst；
Step 5: the stress σ that second pressure sensor measures carries out the prediction of rock burst also according to step 4.
The invention has the advantages that
1, the steel as used in the shaft of monitoring device used have high intensity, therefore the monitoring device has both anchor pole work
With anchoring support can be played the role of to drilling.
2, it is respectively provided on the monitoring rod shaft part and monitoring rod tail portion junction of the monitoring device and shaft side wall
Force sensor, can the resistance that is subject to of drill bit to monitoring rod tail portion and shaft side wall carry out precise measurement.Data are aobvious
Display screen can be with the stress intensity of real-time display rock mass and rock burst grade.
3, the interior of the monitoring device is embedded with microlens, the image that image display panel can observe the camera lens
It shows, since the power performance of unlike material rock stratum is different with picture characteristics, we be can be very good using the method to rock
The material of layer is identified.
4, the image that image procossing and display module can be shot with real-time display microlens；Wireless signal transmitter and figure
Picture processing and display module are connected, and the image that microlens are shot are passed in mobile device, the mobile device equipped with receiver
The image can be subjected to real-time display.
Detailed description of the invention
Fig. 1 is the structural schematic diagram 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 axis；
Fig. 7 is the connecting node of the embodiment of the present invention close to monitoring device shaft part that side profilograph；
Fig. 8 is the connecting node of the embodiment of the present invention close to monitoring device monitoring rod head portion or monitoring rod tail portion
That side 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 Fig. 5 of the embodiment of the present invention in dotted line frame；
Figure 11 is the structure chart of drill bit used in the embodiment of the present invention；
Figure 12 is the calculation diagram that rock mass stress is calculated in present invention method.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, with reference to the accompanying drawings and embodiments to this hair
It is bright to be described in further detail, it should be understood 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 provided by the invention develops long-term real-time monitoring and rock burst early warning visualization
Device is made of monitoring club head, monitoring club body, monitoring rod bar tail and power plant module；Monitor club head, monitoring club body,
Monitoring rod bar tail passes through connecting node 12 and is removably joined together；Connecting node 12 has two layers inside and outside, is divided into winding displacement layer
20 and outer wall layer 21, second pressure sensor 23 is provided between this two layers；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
5, data display screen 6, data processing module 7；Monitoring club body is internally provided with signal transmssion line 9, is provided on side wall 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 of hydraulic control system 14 and mechanical arm 15；Mechanical arm 15 is fastened on monitoring club head, is advanced for applying to device
Power；Hydraulic control system 14 is for the flexible of mechanical arm 15；
First power supply 201, image procossing and display module 1, signal amplifier 3 pass through signal transmssion line 9 and microlens 8
It is connected in series, the image that microlens 8 are shot passes through enhanced processing, then shows 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 pass through signal transmssion line 9 and first pressure sensor
10 and second pressure sensor 23 be connected in series, the data that first pressure sensor 10 and second pressure sensor 23 measure are passed through
After the processing of data processing module 7, stress and rock burst grade (no rock burst, weak rock burst, middle isolith are shown 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 are shot is passed to
Real-time display on external device.
If it is shorter to monitor club body, extension rod 34 can be set between monitoring club head and monitoring club body；Extend
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 longer monitoring rod, gos deep into rock mass.
Connecting node 12 is interlocked by screw thread 22, i.e., the both ends external screw thread of monitoring club body respectively with head portion,
The internal screw 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.
It is provided with 2 first pressure sensors 10 and 3 small drill bit 11 placed side by side on monitoring club body side wall, they
The prominent 0.2~0.5mm of sidewall surfaces of apparent height；Small 11 row's of being internally provided with rubble channel 24 of drill bit.Monitoring club head,
Monitor club body, the outer wall of monitoring rod bar tail is made by high-strength steel；First pressure sensor 10 and second pressure sensing
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
31, cutter 32, slag chute 33 form；The scraper 30, center cutter 31 and cutter 32 cut rock mass, and the rubble drilled out enters
Slag chute 33；The nozzle 29 is sprayed water, to reduce dust, keeps rock stratum apparent in camera.
The lighting mechanism 16 of the present embodiment is LED white light.
See Figure 12, a kind of rock mass stress provided by the invention develops long-term real-time monitoring and rock burst early warning visualization side
Method, comprising the following steps:
Step 1: according to the rock mass stress size to be measured, selection has 10 He of first pressure sensor of suitable voltage range
Second pressure sensor 23；
Step 2: distance of the one small drill bit 11 apart from shaft centroid on monitoring shaft side wall is a, at this time first pressure
The power that sensor 10 measures is q1；After another the small drill bit 11 installed side by side with it pierces a distance into rock mass, away from
It is b with a distance from shaft centroid, the power that first pressure sensor 10 measures at this time is q2；
Step 3: according to the stress condition and boundary condition of Elasticity thick cylinder, can be calculated apart from shaft centroid
Circumference stress at r are as follows:
Step 4: consulting reference materials or measure and obtain the uniaxial compressive strength σ of the place rock massc, then utilize σθ/σcRatio
Prediction rock burst grade: work as σθ/σcWhen < 0.3, no rock burst；As 0.3 < σθ/σcWhen < 0.5, weak rock burst；As 0.5 < σθ/σcWhen < 0.7, in
Equal rock bursts；Work as σθ/σcWhen > 0.7, strong rock burst.
Step 5: the stress σ that second pressure sensor 23 measures 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 rubble channel 24, ball 25, second source 26, switch 27 and motor 28, nozzle 29, scraper 30,
The terms such as center cutter 31, cutter 32, slag chute 33, but a possibility that be not precluded using other terms.Only using these terms
It is to be construed as any additional limitation in order to more easily describe essence of the invention all and be and spirit of that invention
It disagrees.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
It should be understood that the above-mentioned description for preferred embodiment is more detailed, can not therefore be considered to this
The limitation of invention patent protection range, those skilled in the art under the inspiration of the present invention, are not departing from power of the present invention
Benefit requires to make replacement or deformation under protected ambit, fall within the scope of protection of the present invention, this hair
It is bright range is claimed to be determined by the appended claims.
Claims (3)
1. a kind of rock mass stress develops long-term real-time monitoring and rock burst early warning method for visualizing, developed using rock mass stress long-term real
When monitoring and rock burst early warning visualization device；Described device is by monitoring club head, monitoring club body, monitoring rod bar tail and power mould
Block composition；The monitoring club head, monitoring club body, monitoring rod bar tail pass through connecting node (12) and are detachably connected to one
It rises；
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) is provided on side wall, first pressure passes
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 of hydraulic control system (14) and mechanical arm (15)；The mechanical arm (15) is fastened on the prison
In measuring staff head, for applying the power to advance to described device；The hydraulic control system (14) is used 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, and the image of the microlens (8) shooting passes through enhanced processing, then in image procossing and aobvious
Show and is shown on 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) pass through signal transmssion line (9) and the first pressure
Force snesor (10) and second pressure sensor (23) are connected in series, the first pressure sensor (10) and second pressure sensing
The data that device (23) measures by the data processing module (7) handle 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 to real-time display on external device；
The lighting mechanism (16) is arranged on the monitoring club body side wall；The monitoring club body is from the inside to surface by intermediate empty
Central layer (19), winding displacement layer (20), outer wall layer (21) composition；Big groove (17) and little groove are provided on the outer wall layer (21)
(18)；The microlens (8) are mounted in big groove (17), and the lighting mechanism (16) is mounted in little groove (18)；Institute
The interconnecting piece for stating outer wall layer (21) and big drill bit (13) is 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；
The small drill bit (11) and big drill bit (13) are by nozzle (29), scraper (30), center cutter (31), cutter (32), slag chute
(33) it forms；The scraper (30), center cutter (31) and cutter (32) cut rock mass, and the rubble drilled out enters slag chute
(33)；Nozzle (29) water spray, to reduce dust, keeps rock stratum apparent in camera；The small drill bit (11) is internal
The row's of being additionally provided with rubble channel (24)；
The depth that the monitoring club body can be drilled as needed is extended, i.e., between monitoring club head and monitoring club body
It is arranged extension rod (34)；There are internal screw thread and external screw thread in the both ends of the extension rod (34) respectively, outer with monitoring club head respectively
The internal screw thread of screw thread and monitoring club body is attached；The side wall of the extension rod (34) is provided with microlens (8), the first pressure
Force snesor (10) and small drill bit (11)；
It is characterized in that, the described method comprises the following steps:
Step 1: the rock mass stress size measured as needed, selection have the pressure sensor (10) and second of suitable voltage range
Pressure sensor (23)；
Step 2: distance of the one small drill bit (11) apart from shaft centroid on monitoring club body side wall is a, at this time first pressure
The power that sensor (10) measures is q1；Another the small drill bit (11) installed side by side with it pierces a distance into rock mass
Afterwards, the distance apart from shaft centroid is b, and the power that first pressure sensor (10) measures at this time is q2；
Step 3: according to the stress condition and boundary condition of Elasticity thick cylinder, being calculated at shaft centroid r circumferential
Stress are as follows:
Step 4: according to the uniaxial compressive strength σ of the place rock massc, then utilize σθ/σcRatio predict rock burst grade: work as σθ/
σcWhen < 0.3, no rock burst；As 0.3 < σθ/σcWhen < 0.5, weak rock burst；As 0.5 < σθ/σcWhen < 0.7, medium rock burst；Work as σθ/
σcWhen > 0.7, strong rock burst；
Step 5: the stress σ that second pressure sensor (23) measures carries out the prediction of rock burst also according to step 4.
2. according to the method described in claim 1, it is characterized by: the connecting node (12) is engaged in one by screw thread (22)
It rises, i.e. internal screw thread of the both ends external screw thread of monitoring club body respectively with monitoring club head, monitoring rod bar tail is interlocked.
3. method described in -2 any one according to claim 1, it is characterised in that: first pressure sensor (10) and the second pressure
Force snesor (23) is made by piezoelectric sensitivity material.
Priority Applications (1)
| 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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| 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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| CN106768510A CN106768510A (en) | 2017-05-31 |
| CN106768510B true CN106768510B (en) | 2019-03-19 |
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| CN201611102033.2A Expired - Fee Related 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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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| CN101446193A (en) * | 2008-12-12 | 2009-06-03 | 中国矿业大学 | Device and method for detecting coal seam gas pressure and coal wall stress |
| CN103195456A (en) * | 2013-04-26 | 2013-07-10 | 湖南科技大学 | Intelligent anchor rod early-warning and monitoring system for surrounding rock disasters of roadway |
| CN104180853A (en) * | 2014-09-01 | 2014-12-03 | 黑龙江科技大学 | Mine surrounding rock multi-parameter coupling measuring device |
| CN204591321U (en) * | 2014-10-10 | 2015-08-26 | 安徽理工大学 | A kind of novel stress measurement anchor pole being applied to supporting roadway surrounding rock |
| WO2015133720A1 (en) * | 2014-03-05 | 2015-09-11 | (주)센구조연구소 | Pile driving device and pile driving method |
| CN105863612A (en) * | 2016-05-26 | 2016-08-17 | 山东科技大学 | Roadway surrounding rock crack propagation and evolution process observation device |
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2016
- 2016-12-05 CN CN201611102033.2A patent/CN106768510B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446193A (en) * | 2008-12-12 | 2009-06-03 | 中国矿业大学 | Device and method for detecting coal seam gas pressure and coal wall stress |
| CN103195456A (en) * | 2013-04-26 | 2013-07-10 | 湖南科技大学 | Intelligent anchor rod early-warning and monitoring system for surrounding rock disasters of roadway |
| WO2015133720A1 (en) * | 2014-03-05 | 2015-09-11 | (주)센구조연구소 | Pile driving device and pile driving method |
| CN104180853A (en) * | 2014-09-01 | 2014-12-03 | 黑龙江科技大学 | Mine surrounding rock multi-parameter coupling measuring device |
| CN204591321U (en) * | 2014-10-10 | 2015-08-26 | 安徽理工大学 | A kind of novel stress measurement anchor pole being applied to supporting roadway surrounding rock |
| CN105863612A (en) * | 2016-05-26 | 2016-08-17 | 山东科技大学 | Roadway surrounding rock crack propagation and evolution process observation device |
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