CN109373923A - A kind of monitoring system and method for mining tunnel surrouding rock deformation - Google Patents
A kind of monitoring system and method for mining tunnel surrouding rock deformation Download PDFInfo
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- CN109373923A CN109373923A CN201811449200.XA CN201811449200A CN109373923A CN 109373923 A CN109373923 A CN 109373923A CN 201811449200 A CN201811449200 A CN 201811449200A CN 109373923 A CN109373923 A CN 109373923A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The invention discloses a kind of monitoring system and method for mining tunnel surrouding rock deformation, which includes laser range finder, GUD500 is mining surrounding rock moving sensor, protractor, arm for direction indicator, three-legged support, workbench.Selection installs mining surrounding rock moving sensor in top plate and side of mining, monitors the situation of movement of mine side and top plate convenient for the drift section of placement monitoring device.Using ground monitoring device, it is horizontally directed to mine with arm for direction indicator and helps B point for 0 degree of benchmark, by a small margin direction of rotation pointer, and record angle and distance, be successively rotated by 360 ° to B point, that is, be measured.It can measure the total moving distance of roof and floor and two by ground monitoring device and help total moving distance, and due to being mounted with mining surrounding rock moving sensor in B, C two o'clock, top plate and bottom plate can be calculated, two help respective moving distance.Restore drift section pattern using CAD, periodically compare drift section deformation, provides technical support for colliery industry safe construction and efficient production.
Description
Technical field
The present invention relates to the monitorings of deformation of the surrounding rock in tunnel, more particularly to a kind of monitoring system of mining tunnel surrouding rock deformation
And method.
Background technique
With the promotion of scientific and technological level, the undergrounds such as coal mining, tunnel excavation geotechnical engineering is adequately developed.
Wherein coal mining turns to deep by superficial part, but due to the presence of high-ground stress under Deep Condition, the deformation of roadway surrounding rock
Compared to the complexity of superficial part coal seam more, and tunnel plays vital effect in coal mining and transport of materials, so implementing
The monitoring of deformation of the surrounding rock in tunnel is of great significance.Corresponding stress and the mensuration means of deformation also obtain in the geotechnical engineerings such as tunnel
Development is arrived, various experimental facilities emerge one after another, and experiment condition is also greatly improved, and carry out various scenes and interior is real
It tests also relatively convenient.And the deformation of the surrounding rock in tunnel about colliery scene under working face mining disturbance or tunnelling disturbing influence
Monitoring it is fewer and fewer, be on the one hand the limitation of experimental facilities, be on the other hand the missing of effective measuring method means.Carry out
The monitoring of deformation of the surrounding rock in tunnel is tested, and can be very good the stress condition in coal seam and the deformation of roadway surrounding rock during reflection is mined
Situation provides important technical support to explore the real change rule of roadway surrounding rock in underground engineering.Therefore it studies mining
The monitoring system and method for deformation of the surrounding rock in tunnel has remarkable effect to the safety in production for instructing underground engineering.
Summary of the invention
Effectively to show the ambient stress of mining tunnel by field experiment, and the deformation of roadway surrounding rock is measured,
The present invention provides a kind of monitoring system and methods of mining tunnel surrouding rock deformation, carry out periodic monitoring to deformation of the surrounding rock in tunnel.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of monitoring of mining tunnel surrouding rock deformation
System, the system include laser range finder, GUD500 is mining surrounding rock moving sensor, protractor, arm for direction indicator, three-legged support,
Workbench.
The measuring method is based on field experiment, using true tunnel as monitoring object, regularly carries out surrouding rock deformation
Monitoring.
The laser range finder is the instrument that Accurate Determining is carried out using the distance of some parameters on target of modulation laser.
Pulse type laser rangefinder is to project pulse laser beam a branch of or that a sequence is of short duration to target at work, is connect by photoelectric cell
The laser beam of target reflection is received, timer measures laser beam from the received time is emitted to, calculates from rangefinder to target
Distance.Measurement range: 0.05-150m, measurement accuracy ± 1.5mm, data store 20 groups.
The mining surrounding rock moving sensor of GUD500 is Mine-used I. S instrument, outer dimension 480mm*180mm*
70mm, range: 0-300mm, measurement range: 0.8-10m, resolution ratio 0.1mm, measurement accuracy 1%.Mining Surrounding Rock Movement sensing
When device works, anchor fluke gos deep into inside back, and the movement of roof strata drives the movement of monitor internal gear, passes through displacement
Displacive transformation is digital signal by the rotation displacement of sensor sensing internal gear, internal circuit board programing system, and rear substation is aobvious
Show that window is shown, then there is hand-held Acquisition Instrument to adopt back data.
The protractor be arm for direction indicator rotating angle measurement apparatus, 0-360 ° of range, 1 ° of measurement accuracy.
The arm for direction indicator is the auxiliary device of deformation of the surrounding rock in tunnel monitoring, outer dimension 200mm*20mm, main function
It is fixed laser rangefinder and rotates angle convenient for protractor measurement.
The three-legged support and workbench are the auxiliary device of deformation of the surrounding rock in tunnel monitoring, and need to set depending on the site environment
Meter production, rack leg are scalable.Three-legged support plays support fixed function, guarantees that device will not move in monitoring process；Workbench
The mainly devices such as fixed laser rangefinder, protractor and arm for direction indicator, lower section is connect with three-legged support.
Monitoring system and method based on mining tunnel surrouding rock deformation, includes the following steps:
A, selection is convenient for placing the drift section of monitoring device, it is desirable that roadway floor is smooth as far as possible.
B, choosing some number in the coal mining side of selected drift section is B point, and it is C point that top plate, which chooses some number,
It is punched using jumbolter in B, C two o'clock, aperture 30mm, hole depth 15m, hole depth need to be greater than wall rock loosening ring radius, after pore-forming
To prevent collapse hole, the mining surrounding rock moving sensor of GUD500 should be installed immediately, coal mining side and top plate can be monitored after being installed
Situation of movement.
C, will three-legged support and workbench assembling after be placed among drift section, and successively by laser range finder, protractor,
Arm for direction indicator is installed on the workbench, and forms complete ground monitoring device.
D, it is horizontally directed to mine side B point with arm for direction indicator as 0 degree of benchmark, measures ground monitoring device using laser range finder
To the distance of B point, and record angle and distance；Continue direction of rotation pointer by a small margin, and record angle and distance, successively rotates
360 degree to B point, that is, are measured, entire measurement process will at least have 20 measuring points.
E, the total of C, D two o'clock is helped by total moving distance and two that ground monitoring device can measure roof and floor A, B two o'clock
Moving distance, and due to being mounted with the mining surrounding rock moving sensor of GUD500 in B, C two o'clock can calculate top plate and bottom plate, two help
Respective moving distance.
F, ground monitoring device makes marks A point, B in same drift section in roadway's sides when to guarantee measurement every time
Point is pointed into B point by A point using laser range finder, if each monitoring device in the illumination path of laser range finder, Ji Kebao
Card is in same plane.
G, arrangement and research and application data, and restore drift section pattern using CAD, it periodically compares drift section and deforms feelings
Condition.
The advantages and effects of the present invention are:
Drift section DEFORMATION MONITORING SYSTEM of the present invention is passed by ground monitoring device and the mining Surrounding Rock Movement of GUD500
Sensor two parts composition, is monitored by field experiment, maximumlly realizes the validity of drift section deformation monitoring and true
Property.
The present invention is site monitoring system and monitoring method, can reflect lane under the environment such as different exploitation disturbances to the greatest extent
The deformation of road country rock, method simple possible, experiment effect is good, and avoids various mistakes brought by large-scale experiment equipment
Difference tests strong operability, rationally economical.
Assay device structures of the present invention are simple, easy to operate, can monitor roof and floor and two total situation of movement for helping simultaneously, again
Top plate and bottom plate can be monitored, two help respective deformation, can be produced for underground geotechnical engineering especially coal industry provide compared with
For accurate monitoring data.Its is compact-sized, and cost is relatively low, and data are accurate, and use scope is wide, has wide applicability.
Detailed description of the invention
Fig. 1 is the schematic diagram of the method for the present invention；
In figure: 1, laser range finder, 2, GUD500 is mining surrounding rock moving sensor, 3, arm for direction indicator, 4, three-legged support, 5,
Workbench, 6, protractor, 7, roadway surrounding rock profile.
Specific embodiment
Shown example elaborates to the present invention with reference to the accompanying drawing.
As shown in Figure 1, a kind of monitoring system of mining tunnel surrouding rock deformation, mainly by laser range finder 1, GUD500 is mining
Surrounding rock moving sensor 2, arm for direction indicator 3, three-legged support 4, workbench 5, protractor 6 form.
The measuring method is based on field experiment, using true tunnel as monitoring object, regularly carries out surrouding rock deformation
Monitoring.
The laser range finder 1 is the instrument that Accurate Determining is carried out using the distance of some parameters on target of modulation laser
Device.Pulse type laser rangefinder is to project pulse laser beam a branch of or that a sequence is of short duration to target at work, by photo elements
Part receives the laser beam of target reflection, and timer measures laser beam from the received time is emitted to, calculates from rangefinder to mesh
Target distance.Measurement range: 0.05-150m, measurement accuracy ± 1.5mm, data store 20 groups.
The mining surrounding rock moving sensor 2 of GUD500 is Mine-used I. S instrument, outer dimension 480mm*180mm*
70mm, range: 0-300mm, measurement range: 0.8-10m, resolution ratio 0.1mm, measurement accuracy 1%.Mining Surrounding Rock Movement sensing
When device 2 works, anchor fluke gos deep into inside back, and the movement of roof strata drives the movement of monitor internal gear, passes through position
Displacement sensor incudes the rotation displacement of internal gear, and displacive transformation is digital signal, rear substation by internal circuit board programing system
Display window is shown, then has hand-held Acquisition Instrument to adopt back data.
The protractor 6 be 3 rotating angle measurement apparatus of arm for direction indicator, 0-360 ° of range, 1 ° of measurement accuracy.
The arm for direction indicator 3 is the auxiliary device of deformation of the surrounding rock in tunnel monitoring, outer dimension 200mm*20mm, main function
It is fixed laser rangefinder 1 and rotates angle convenient for the measurement of protractor 6.
The three-legged support 4 and workbench 5 are the auxiliary device of deformation of the surrounding rock in tunnel monitoring, and need depending on the site environment
It designs and produces, rack leg is scalable.Three-legged support 4 plays support fixed function, guarantees that device will not move in monitoring process；Work
Platform 5 is mainly that devices, the lower sections such as fixed laser rangefinder 1, protractor 6 and arm for direction indicator 3 are connect with three-legged support 4.
Monitoring system and method based on mining tunnel surrouding rock deformation, includes the following steps:
A, selection is convenient for placing the drift section of monitoring device, it is desirable that roadway floor is smooth as far as possible.
B, choosing some number in the coal mining side of selected drift section is B point, and it is C point that top plate, which chooses some number,
It is punched using jumbolter in B, C two o'clock, aperture 30mm, hole depth 15m, hole depth need to be greater than wall rock loosening ring radius, after pore-forming
To prevent collapse hole, the mining surrounding rock moving sensor 2 of GUD500 should be installed immediately, coal mining side and top plate can be monitored after being installed
Situation of movement.
C, it is placed among drift section after assembling three-legged support 4 and workbench 5, and successively by laser range finder 1, angulation
Device 6, arm for direction indicator 3 are mounted on workbench 5, form complete ground monitoring device.
D, it is horizontally directed to mine side B point with arm for direction indicator 3 as 0 degree of benchmark, measures ground monitoring using laser range finder 1 and fill
The distance of B point is set, and records angle and distance；Continue direction of rotation pointer 3 by a small margin, and record angle and distance, successively
It is rotated by 360 ° to B point, that is, is measured, entire measurement process will at least have 20 measuring points.
E, the total of C, D two o'clock is helped by total moving distance and two that ground monitoring device can measure roof and floor A, B two o'clock
Moving distance, and due to being mounted with the mining surrounding rock moving sensor 2 of GUD500 in B, C two o'clock, top plate and bottom plate, two can be calculated
Help respective moving distance.
F, ground monitoring device makes marks A point, B in same drift section in roadway's sides when to guarantee measurement every time
Point is pointed into B point by A point using laser range finder 1, as long as each monitoring device is in the illumination path of laser range finder 1
Guarantee in same plane.
G, arrangement and research and application data, and restore drift section pattern using CAD, it periodically compares drift section and deforms feelings
Condition.
Claims (6)
1. a kind of monitoring system and method for mining tunnel surrouding rock deformation, it is characterised in that: by laser range finder 1, GUD500 mine
With surrounding rock moving sensor 2, arm for direction indicator 3, three-legged support 4, workbench 5, protractor 6 formed, wherein laser range finder 1, side
It is mounted on workbench 5 to pointer 3 and protractor 6, and workbench 5 and three-legged support 4 are connected to form complete ground monitoring device,
GUD500 is mining, and surrounding rock moving sensor 2 is installed in the drilling of top plate and side of mining, the movement of monitoring top plate and side of mining
With deformation, composition mining tunnel deformation is combined with the mining surrounding rock moving sensor 2 of GUD500 by ground monitoring device
Monitoring system, realize the periodic monitoring of deformation of the surrounding rock in tunnel under different stress and bumpy weather.
2. a kind of monitoring system of mining tunnel surrouding rock deformation according to claim 1, it is characterised in that: arm for direction indicator 2
Design, including with laser range finder 1, the work of workbench 5 and protractor 6 and installation space.
3. a kind of monitoring system of mining tunnel surrouding rock deformation according to claim 1, it is characterised in that: three-legged support 4
Design, to guarantee to adapt to the monitoring requirements in different tunnels, the height of three-legged support is adjustable, and guarantees in monitoring process
Workbench 5 stability, structure includes and the installation space of workbench 5 and telescopic rack leg.
4. a kind of monitoring system of mining tunnel surrouding rock deformation according to claim 1, it is characterised in that: workbench 5
Design, including with laser range finder 1, the work of arm for direction indicator 3 and protractor 6 and installation space.
5. a kind of monitoring system of mining tunnel surrouding rock deformation according to claim 1, it is characterised in that: use laser ranging
The ground monitoring device that instrument 1, arm for direction indicator 3, three-legged support 4, workbench 5 and protractor 6 form, can pass through direction of rotation pointer
3, the distance of different angle is recorded, and then monitor tunnel overall deformation.
6. utilizing a kind of mining lane described in claim 1 to 5 based on a kind of monitoring method of mining tunnel surrouding rock deformation
The monitoring system of road deformation, characterized by the following steps:
A, selection is convenient for placing the drift section of monitoring device, it is desirable that roadway floor is smooth as far as possible.
B, choosing some number in the coal mining side of selected drift section is B point, and it is C point that top plate, which chooses some number, is utilized
Jumbolter is punched in B, C two o'clock, aperture 30mm, hole depth 15m, and it is anti-after pore-forming that hole depth, which needs to be greater than wall rock loosening ring radius,
Only collapse hole should install the mining surrounding rock moving sensor 2 of GUD500 immediately, and the shifting of mine side and top plate can be monitored after being installed
Emotionally condition.
C, will three-legged support 4 and workbench 5 assemble after be placed among drift section, and successively by laser range finder 1, protractor 6,
Arm for direction indicator 3 is mounted on workbench 5, forms complete ground monitoring device.
D, it is horizontally directed to mine side B point with arm for direction indicator 3 as 0 degree of benchmark, measures ground monitoring device using laser range finder 1 and arrive
The distance of B point, and record angle and distance；Continue direction of rotation pointer 3 by a small margin, and record angle and distance, successively rotates
360 degree to B point, that is, are measured, entire measurement process will at least have 20 measuring points.
E, total moving distance of roof and floor A, B two o'clock out and two can measure by ground monitoring device and helps total movement of C, D two o'clock
Distance, and due to being mounted with the mining surrounding rock moving sensor 2 of GUD500 in B, C two o'clock, can calculate top plate and bottom plate, two help it is each
From moving distance.
F, ground monitoring device makes marks A point, B point in same drift section in roadway's sides when to guarantee measurement every time, benefit
B point is pointed by A point with laser range finder 1, as long as each monitoring device in the illumination path of laser range finder 1, that is, can guarantee
In same plane.
G, arrangement and research and application data, and restore drift section pattern using CAD, periodically compare drift section deformation.
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| CN110017824A (en) * | 2019-05-10 | 2019-07-16 | 安徽送变电工程有限公司 | A kind of device and its measurement method of portable subsidiary hidden point plane coordinates |
| CN110056344A (en) * | 2019-04-18 | 2019-07-26 | 中国矿业大学 | A kind of measurement device and its application method of coal seam punching shape |
| CN110374584A (en) * | 2019-06-19 | 2019-10-25 | 中国矿业大学 | A kind of tunnel relaxation zone and the area visualization detection method that leaks out that drills |
| CN111272093A (en) * | 2020-03-20 | 2020-06-12 | 陕西煤业化工技术研究院有限责任公司 | Roadway deformation monitoring method |
| CN111271129A (en) * | 2020-01-31 | 2020-06-12 | 天地科技股份有限公司 | Method for acquiring deformation and fracture expansion rule of stoping roadway surrounding rock |
| CN111829441A (en) * | 2020-09-03 | 2020-10-27 | 东北大学 | Roadway surface displacement deformation monitoring method based on laser ranging principle |
| CN112302722A (en) * | 2020-11-17 | 2021-02-02 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal mine roadway multi-azimuth stress and deformation wireless monitoring and early warning method and system |
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| CN110056344B (en) * | 2019-04-18 | 2020-04-10 | 中国矿业大学 | Device for measuring shape of punched hole of coal seam and using method thereof |
| CN110017824B (en) * | 2019-05-10 | 2021-04-23 | 安徽送变电工程有限公司 | Portable device for auxiliary measurement of hidden point plane coordinates and measurement method thereof |
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| CN111829441A (en) * | 2020-09-03 | 2020-10-27 | 东北大学 | Roadway surface displacement deformation monitoring method based on laser ranging principle |
| CN112302722A (en) * | 2020-11-17 | 2021-02-02 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal mine roadway multi-azimuth stress and deformation wireless monitoring and early warning method and system |
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| CN113155048A (en) * | 2021-03-15 | 2021-07-23 | 中煤科工开采研究院有限公司 | Mine roadway deformation monitoring device and method |
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