CN105765409B - For measuring the method and system for the opposite variation that the stress in front of longwell is concentrated - Google Patents
For measuring the method and system for the opposite variation that the stress in front of longwell is concentrated Download PDFInfo
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- 238000005065 mining Methods 0.000 claims abstract description 26
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- 238000010586 diagram Methods 0.000 description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/003—Seismic data acquisition in general, e.g. survey design
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/303—Analysis for determining velocity profiles or travel times
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/10—Aspects of acoustic signal generation or detection
- G01V2210/12—Signal generation
- G01V2210/123—Passive source, e.g. microseismics
- G01V2210/1236—Acoustic daylight, e.g. cultural noise
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/612—Previously recorded data, e.g. time-lapse or 4D
- G01V2210/6122—Tracking reservoir changes over time, e.g. due to production
- G01V2210/6124—Subsidence, i.e. upwards or downwards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/622—Velocity, density or impedance
- G01V2210/6222—Velocity; travel time
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Abstract
A method of for measuring the opposite variation of the stress in front of longwell, it is characterized in that, capturing control server (6), spatially synchronous orientation and the operation of the coalcutter (15) with synchronized time interval and with informing in workspace (B) and the signal of position are closely related in all channels, to record the vibration measuring signal for coming from three axis geophones (19) being mounted in longwell tunnel (A), and on this basis, the capture control server is cooperated with processing server (10) to determine the position of seismism.After terminating each excavation of the coalcutter (15), the capture control server analyzes the opposite variation of the stress in the coal body (C) in front of the longwell using decaying damping tomography, including the analysis to seismic wave (FK).After terminating the excavation during the coalcutter (15) stop, the capture control server realizes active speed or decaying tomography using seismic wave (FS) by the seismic imaging of the rock mass between the longwell tunnel (A), and analyzes the stress using seismic wave (FP) followed by passive speed and/or decaying tomography.Then periodically, preferably during an exploitation shift several times, the average accumulated tomography figure of the opposite variation of stress and/or the figure of specific tomography are drawn.The system comprises at least six generally startings being arranged in each of described longwell tunnel (A) and vibration measurement modules (1), the module is connected to local measurement data concentrator (3) via the digital transmission line (2) of essential safety, the concentrator is connected to electric power buffering feeding mechanism (4) of essential safety and is connected to the capture control server (6) via optics Ethernet (5), the capture control server is connected to mining site scheduling system (7), global positioning satellite module (8), internal time module (9) and the processing server (10).The processing server (10) is connected to accumulation chromatography imaging visual panel (14) and is preferably connected to active attenuation damping chromatography imaging visual panel (11), active speed or decaying chromatography imaging visual panel (12) and passive speed or decaying chromatography imaging visual panel (13).
Description
Technical field
Proposed invention is related to detecting and supervising to be used for for measuring the opposite variation that the stress in front of longwell is concentrated
Depending on the method and system of the rock burst harm in the long wall region of deep mine.
Background technique
State of the art
Poland Patent PL207323 (B1) discloses a kind of method, the method using with away from the intersection point of the wall known to
Distance be mounted on the standard longwell network of the seismoacoustics geophone in the longwell tunnel in front of longwell.Absorption coefficient
Value according to by these geophones at regular intervals (the primary full excavation for preferably including the wall) record
The cumlative energy of seismoacoustics event determines.It is assumed that distance of the geophone away from the intersection point is it away from seismoacoustics pulse
Source distance.According to make the energy of observed wave at a distance from away from source and known physics equations relevant with absorption factor come
Calculate effective attenuation factor.
Another Poland Patent PL202149 (B1) describes for continuously monitoring the stress phase in the rock mass in front of longwell
To the system of variation.The system is characterized in that, is accordingly mounted in the top of mining site workspace and side wall or bottom
In the transmitter equipped with geophone the interface of logger computer is connected to via transmission line.This is utilized by these lines
The electric current of matter safety is powered to transmitter.Using the vibration generated by the excavation head of coalcutter by determining on controlled bottom or top
Vibration damping isopleth in portion estimates the state of relative stress.Computer executes the ruler of the opposite variation to the attenuation of seismic wave
Very little and distribution calculating, the approximate variation relatively with stress of the opposite variation are inversely proportional.This allows with the phase containing stress
The opposite variation is presented to the form of the tomography figure of the isopleth of variation.
The system of the multi-channel portable earthquake equipment known to Poland Patent PL152339 (B1) is designed to control and exists
The state of rock mass in the region of mining site workspace, with the determining stress distribution on time and space and to pass through actively
The inhomogeneities of seismic velocity tomography identification deposition.The system is by internal stationary random access memory ram and can
The microprocessor block of programmable memory EPROM is constituted, and the microprocessor block is connected to via accumulating system bus with standby
With the block of the expanded RAM memory of battery, real-time clock, by inertia relay actuating control module and thereon connect
It is connected to the control measurement of geophone and the block of both multichannel analog input blocks.Analogue measurement control block and simulation
Input block is connected by internal bus.Control unit with LCD indicator and the serial transmission with bidirectional linked list output
Block is attached to bus system.
Be imaged using initiatively Seismic Tomography and passively the method for the seismic imaging of seismic wave tomography from following public affairs
It opens known in case: the " method (Methods that the rock burst for assessing mining site workspace within coal mines endangers
forevaluation of rockburst hazards of the mine workings in the coal mines)”
(2010), Joseph Kai Bici (JozefKabiesz) editor, Katowice center mining industry association, page 165 to 320.
Chinese patent document CN101762830 (B) and CN102279410 (A) are disclosed for by via Ethernet
It is connected to the earthquake of base computer and the network monitoring rock mass of seismoacoustics sensor and in the mining site monitored
The prominent positioning for splitting source of earthquake in workspace through integration system and method, the system and method are recorded in space for analyzing
Signal in distribution.
In another Chinese patent literature CN101581789 (A), the side for detecting the interference in the rock mass of mining site is described
Method.The method is by using the seismoscope imaging of the rock mass between longwell tunnel of active chromatography imaging method to constitute.This
Method uses three axis (three-dimensional) geophone placed along longwell tunnel, and the explosion of the explosive charge in opposite tunnel
It is the source of elastic wave.The method is by point to the elastic wave induced by demolition point of the three axis geophones in coal bed
The record of cloth is constituted.Geology in rock mass is determined based on the analysis to these measured values extremely.
Russ P application case RU2011112877 (A) discloses the stress for monitoring rock mass during exploiting work
And the method for the state of deformation.The process for measuring the feature of the elastic wave field in rock mass is shaken along three reference axis using three axis
Dynamic sensor continuously performs, and three axis vibration sensor is according to the number of direct wave and back wave from different polarization
According to recording the variation of the parameter of wave field and the quantitative variation of stress and the state of deformation.During exploiting work, the vibration of three axis
Dynamic sensor is arranged in two sides along the area that organizes work (that is, the monitoring for wherein executing the state to stress and deformation).By adopting
The vibration that the excavation head of coal machine generates is the source of elastic wave.During measuring the feature of the elastic wave in rock mass, by earthquake
The method of tomography is used to position stress in coal body along the extent length through exploiting longwell.
Other patent application case EP1085347 (A2), EP0333363 (A2) and RU2011142893 (A) are related to being used for
Equipment of the artificial excitation for the seismic wave of the seismic wave tomography of rock mass.In these devices, mechanical shock element is dynamic
It can be discharged by pneumatic media.
K. Europe Saite (K.Oset), Z. Le Sakefu (Z.lsakow) and S. Te Lanciaike (S.Trenczek)
" state (the Recognition of the state of therock of rock mass is identified using modern surveying equipment PASAT M
Mass using modern measuring equipment PASAT M) " (the 15th anniversary world geotechnical engineering seminar
Minutes " geotechnical engineering 2012 ", MaterialyNaukowe, Gleiwitz-Wu Sitelong, October 23 to 26 in 2012
Day) describe the portable earthquake equipment of essential safety, the equipment be designed between workspace and hole it
Between earthquake screening, for the longitudinal earthquake profile survey in gallery and for being hidden to methane and other gases
The rock mass seismic survey of the appearance of reservoir and test.The equipment, which is designed for periodically executing, uses active wavepath layer
Analyse the seismic survey of imaging method.This allows by determining that earth shock is jeopardized to the screening of rock mass using wood based panel
Region range.
The equipment is by the measurement that is connected by the shielded cable for the analog data transmissions popped one's head in for two wave detectors
And transmission module MPT composition, described two wave detector probes are made of three geophones oriented in 3 dimension spaces.
MPT module is filtered equipped with the microcontroller with FRAM memory, the instrument amplifier with variable gain, with antialiasing
24 buck converters and Transmission system CAN of device.Each module is powered by the battery of built-in essential safety.MWP module
Control the configuration and transmission of the signal from MPT module.The MWP module is powered also by the battery of its own.The MWP
Module, which has, triggers input, allows to light a fire with microburst or starts to measure to tap the mechanically activated of realization by iron hammer.In addition,
The MWP module has the blue tooth interface for communicating with PDA module, and the PDA module includes for measuring session (that is, surveying
Measure time, frequency, gain and measurement data acquisition) configuration software.These data are also sent to peace via blue tooth interface
PC computer on mining site surface is with for further processing.
Measuring principle is motivated using generating while closing or opening trigger signal obtained by current loop
Seismic wave.Allow the synchronization of all MPT modules by MWP module received signal.Then, start seismic record.Measure number
According to being stored in PDA module.Special-purpose software is based on recorded data and generates seismogram.It can be determined from these seismograms specific
The time of occurrence of the wave of type, its amplitude, frequency calculate the speed or acceleration of such as media vibration.Equipment and measurement
The execution when earthquake is calmed down is constructed, this needs interrupts at least one exploitation shift in broadwall.
The discussion of the prior art
Monitoring is not allowed to continue in longwell with measurement with the special of seismic wave chromatography imaging execution with larger time interval so far
The state of the stress variation in front and the further validity of the assessment preventative alleviation of stress.Known essential safety it is portable
For the primary operational of formula earthquake electrical equipment the disadvantage is that must measure when earthquake is calmed down, this needs to make the work of longwell to stop
At least one exploitation shift is to install sensor, the component for connecting measuring system and use by hammering or exploding produce on a small quantity
Raw seismic wave measures.This is simultaneously not always possible and need persistently to monitor methane concentration.
However, being implemented from the perspective of measurement quality and reliability using known portable earthquake electrical equipment
Individual speed active seismic tomographies major defect be " blind area " appearance, in the blind area, about terrane stress
Information be incomplete.First blind area is the blind area SY of the seismic ray in longwell gallery, because usually blowing charge exists
It is not ignited at this.In turn, the confidence level for the passive tomography individually applied depends on the located earthquake in wall
The number and distribution of event.Similarly, since the formation of another blind area SX, the reality by source of the coalcutter exploitation head as seismic wave
An other embodiment for existing decaying damping tomography is not provided about the stress collection inside the coal body in front of longwell
In information.When sensor is distributed in longwell tunnel, this region does not pass through seismic imaging.
Summary of the invention
Target of the invention
It is an object of the present invention to provide implement to become the opposite of stress present in the coal bed in front of the longwell in deep mine
The method and system of the measurement of change.This by realize to the stress variation during broadwall continue and be free of blind area survey
Amount, and widen the range of the identification for the state concentrated to stress simultaneously and increase the accuracy of the measurement of the opposite variation to stress
And reliability is to ensure that rapid and more effective rock burst prevents.
General introduction of the invention
In the new method of the opposite variation of stress of the measurement proposed in front of longwell, control server is captured in institute
Have in Measurement channel synchronously and with synchronized time interval and with inform the coal winning machine position in wall workspace and operate mould
The signal of formula is closely related, to record the vibration signal from three axis geophones being mounted in longwell tunnel.In this base
On plinth, the capture control server cooperates to determine the position of seismism with processing server, and is terminating coalcutter
Every time after excavation, the capture control server uses what is recorded to be induced by quarrying apparatus using decaying damping tomography
The energy of wave analyze the opposite variation of the stress in the coal body in front of longwell.
During coalcutter stops, speed or decay active layers of the capture control server using the rock mass between tunnel
Analysis imaging is continued to operate using the driver by vibration by the seismic wave that server is remotely triggered from mining site surface.It connects
, the server use by exploitation induction by the method for speed and/or the passive tomography of decaying as shock wave
Stress is analyzed in the vibration in source.Then periodically, preferably during an exploitation shift several times, the phase of stress is drawn
Average accumulated tomography figure to the concentration of variation and/or the figure for drawing specific tomography.Finally, it has been tied in excavation head
It is automatic to execute the excitation used using the active tomography of the rock mass between tunnel by vibrating in state after its work of beam
The stress analysis of seismic wave caused by device.
If coalcutter makes to resume work in execution tomography, the latter is interrupted until detecting in coalcutter work
Next disconnection in work.The sampling of signal from three axis geophones and analog-to-digital conversion are with certain sample frequency and clock
Reference node beating-in step, and preferably have to being compensated while time delay caused by the different length as transmission line.Most preferably, it surveys
The internal time for measuring data local hub is fixed via capture control server and global satellite using IEEE 1588PTP agreement
Position module GPS is synchronous.
In addition, the average accumulated tomography figure and/or specific tomography of the concentration of variation relatively of gained stress
Figure damps on accumulation chromatography imaging visual panel and in active attenuation on chromatography imaging visual panel, in active speed
And/or it is visualized on decaying chromatography imaging visual panel and in passive speed and/or decaying visualization panel.
Impulse exciter through compressed media from Qi Yuan by that will be introduced into the sky above the piston of the impulse exciter
Between in carry out Remote triggering.It is located at mining site table by coming from via transmitter module and digit receiver by opening through compressed media
The electropneumatic distributor of the pulse starting of capture control server on face provides.It is corresponding with longwell advance, starting with
And vibration measurement module arrangement in the side wall in tunnel and is attached to pre-installation anchor.
For measuring the opposite system changed of the concentration of the stress in long wall surface by being arranged in one of longwell tunnel
In at least six generally startings and vibration measurement module and at least six vibration measurement moulds being arranged in longwell tunnel
Block composition, or at least 12 generally startings and vibration measurement module by symmetrically installing are (that is, in two longwell tunnels
Each in there are six) composition.The generally starting and vibration measurement module are connected by the digital transmission line of essential safety
It is connected to measurement data local concentrator, the concentrator is connected to the electric power buffering feeding mechanism of essential safety, and via optics
Ethernet is connected to capture control server.Capture control server be connected to mining site scheduling system, HA Global Positioning Satellite module,
Internal time module and processing server, the processing server are connected to accumulation chromatography imaging visual panel, and preferably
Ground be connected to active attenuation damping chromatography imaging visual panel, active speed and/or decaying chromatography imaging visual panel, with
And passive chromatography imaging visual panel.
Mining site dispatches system and is connected to coalcutter by the position and operation control system of coalcutter, and the coalcutter is equipped with
Position sensor.Generally starting and vibration measurement module are popped one's head in equipped with impulse oscillation driver and three-axis measurement, and
It is mechanically attached to the anchor being embedded in side wall, top or the bottom of the wall workspace.Three axis geophones
It is connected to transmitter module and digit receiver.Impulse oscillation driver is equipped with electropneumatic distributor, the electronic gas
Dynamic distributor has the control unit for being coupled to transmitter and digit receiver module.The outlet of electropneumatic distributor connects
The space equipped with compressed spring on piston above to the piston in the explosive element of impulse oscillation driver.Electropneumatic point
The entrance of orchestration is connected to local provisioning module by pipeline, and the local provisioning module is the source of pneumatic media, most preferably
It is through compressed nitrogen.Vibration measurement module is embedded in side wall, top or the bottom of the wall workspace by being mechanically attached to
The three-axis measurement of anchor in portion, which is popped one's head in, to be constituted.Three axis geophones are connected to transmitter and digit receiver module.
Effect of the invention
The present invention is three kinds of methods based on seismic wave tomography, first method be active speed or decaying chromatography at
Picture is manually lured including the use of the pulse controlled by using impulse oscillation driver 18 from mining site surface D in mining site under ground portion E
The seismic sweep that the seismic wave FS of hair carries out the coal body between tunnel.Second of method used simultaneously is active attenuation resistance
Buddhist nun's tomography is swept using the earthquake that the seismic wave FK using the exploitation head induction by coalcutter 15 carries out long wall region
It retouches, wherein the same phase of signal of the operation and position of the coalcutter 15 of these measured values and informing in the wall workspace B
It closes.The vibration induced by exploitation is used as the source of seismic wave FP by the third passive speed or decaying chromatography imaging method.
The speed of seismic wave and the opposite variation of decaying are determined by using new integrated approach, and are determined indirectly
The opposite variation that the stress in front of longwell that is approximate directly proportional to speed and being inversely proportional with decaying is concentrated, the phase of resulting stress
The average accumulated tomographic map of variation is drawn several times during each exploitation shift, without stopping broadwall, and is disappeared
Except the limitation by individually taking each of these methods to generate.The present invention is increased by writing speed or is subtracted with speed
Rock mass in the region of few seismic wave damages to obtain the current observations of the variation to seimic wave velocity, the observation knot
Fruit is the image of the position of the increased concentration of stress.Use is scanned from mine by the current seismic executed between the A of longwell tunnel
The impulse oscillation driver 18 of field granule surface contral, present invention also eliminates sweep using the wave generated by the exploitation head of coalcutter 15
Retouch the blind area SX of the form triangular in shape presented in the method for wall region.
In addition, being deployed in the side wall of longwell tunnel A and being attached to new generally starting and the vibration of pre-installation anchor 20
The use of dynamic measurement module 1 and its mobile permission advanced with longwell is free and process of measurement appropriate designs, and make
With the scanning that is carried out by manual-induced seismic wave FS to the rock mass between the A of tunnel to using active seismic tomography
The control of measurement.It is executed during the normal operating of longwall systems with system according to the method for the present invention and currently measures and allow to connect
The variation that continuous monitoring stress is concentrated, the monitoring are necessary to the safety of exploitation personnel, because it allows in rock burst
Preventative reduction rapid evacuation exploitation personnel in the case where harm and allow to endanger using rock burst.
Detailed description of the invention
It is shown in the exemplary embodiment of the present invention in the drawings, wherein Fig. 1-is shown with the two in longwell tunnel
In generally starting and measurement module measuring system block diagram, Fig. 2-shows generally starting and vibration measurement module
Block diagram, Fig. 3-show the measuring system with the generally starting and measurement module being arranged in one of longwell tunnel
Block diagram and Fig. 4-show the block diagram of vibration measurement module.
Specific embodiment
Example I (method)
Method of the invention is based on the current measurement and analysis for using new accumulation seismic tomography, the new accumulation
Seismic tomography application uses for this purpose from mining site granule surface contral and excites the mechanical pulsing vibration of wood based panel FS
The active speed or decaying tomography and active attenuation of driver 18 damp tomography, and including to by coalcutter 15
Exploitation head excitation seismic wave FK analysis supplement decaying damp tomography, position of the coalcutter relative to longwell
It sets through coal winning machine position and operation control system 17 and records.In addition, method of the variation of stress using passive tomography
Impact W1, W2...Wi for positioning in the region of controlled longwell by processing server 10 are used as the source of scanning wave to identify
Out.Effective distribution using the seismic activity and vibration that depend in the region of the longwell monitored of the method.
Starting and vibration measurement module 1 are arranged in the side wall of two longwell tunnel A, or according to current needs, arrangement
In only one of longwell tunnel A, and vibration measurement module 28 is distributed in the A of longwell tunnel.Starting and vibration measurement
Module 1 and vibration measurement module 28 are according to before longwell and then mobile.Using the method for active tomography by using by arteries and veins
The opposite change to stress rushing the seismic wave that vibration exciter 18 the induces rock mass scanning carried out between the A of longwell tunnel and carrying out
The analysis of change has been completed to excavate and exploit in the state that part terminates its work to execute automatically in wherein coalcutter 15.If
Coalcutter 15 is restoring exploitation between imaging phase using actively chromatograph for impulse oscillation driver 18, then suspend measurement process until
Detect the stopping next time of coalcutter 15.
Coal body C in front of longwell is repeatedly scanned by the seismic wave FK that the exploitation head of coalcutter 15 generates and allows this area
The decaying in domain damps tomography.(wherein seismic ray cannot be swept the blind area SX of the form triangular in shape occurred in this method
Retouch far from the bottom or top in front of longwell) it is analyzed by the additional survey of active speed or tomography of decaying, wherein right
It is generated in the A of longwell tunnel and the seismic wave FS by triggering from the impulse oscillation driver 18 of mining site granule surface contral is analyzed.
For using wood based panel FS starting active impulse speed or decaying tomography use special blind area
SY is supplemented by decaying damping tomography using the seismic wave FK of the exploitation head generation by coalcutter 15.With preferably
The sample frequency of 10KHz it is synchronous with beat reference clock signal execute the signal from three axis geophones 19 sampling and
Conversion of the analog signal carried out by module 21 to digital signal.
The internal time of measurement data local concentrator 3 is using IEEE 1588PTP agreement via capture control server 6
It is synchronous with satellite clock 8.The numerical data from three axis geophones 19 that is recorded in record server 6 and vibration
Continuous record and selected record using by coalcutter position and the operating system 17 coal winning machine position information that sends supplement.
This system is a part of mining site scheduling system 7.It captures control server 6 and sends these data to processing server 10, it is described
Processing server analyzes recorded data, calculates and damps the active attenuation on chromatography imaging visual panel 11 in active attenuation
Damp the figure of tomography, active speed or damping layer in active speed and/or decaying chromatography imaging visual panel 12
The figure of imaging is analysed, the figure of the passive tomography on panel 13 is visualized in passive speed and/or decaying and is chromatographed in accumulation
The figure of accumulation tomography on imaging visual panel 14 and make these figures visualize.
The each generally starting and vibration measurement module 1 shown on Fig. 2 is attached to anchor 20, and the anchor is secured
Ground is embedded in rock mass, that is, is embedded in side wall, top or the bottom in tunnel.Starting and vibration measurement module 1 include and three
The impulse oscillation driver 18 that axis geophone 19 is integrated.Transmitter and digit receiver are sent by analog output signal
The input terminal of module 21.Local measurement is sent via the transmission digital circuit 2 of essential safety in digital form by the signal
Data hub 3 and further via optics Ethernet 5 be sent to capture control server 6.Transmitter receiver module 21 connects
The signal 27 for activating motor driven distributor 22 is received and sends, the signal is sent by processing server 10 with periodically
Lead to the single actuating to the impulse oscillation driver 18 for starting manual-induced seismic wave FS.Impulse oscillation driver 18 opens
The dynamic space by above the piston to the explosive element 23 of impulse oscillation driver 18 is provided pressurizes in fluid provider 26
25 amount of media, the amount of media make hammer element 23 hit anchor 20.It is artificial as caused by impulse oscillation driver 18
It is identified at the time of the generation of the seismic wave FS of induction by three axis geophones 19.System pressure be reduced to allowable value it
One bottle of periodic replacement is through compressed nitrogen after lower, and described through compressed nitrogen is pneumatic media provision module 26.Impulse oscillation swashs
Three axis geophones 19 of vibration of the improper starting of device 18 by being recorded in its excitation when are encouraged to identify.
Example II (system)
The system according to the present invention schematically shown in Fig. 1 is placed in the longwell for being longer than 120m by symmetrically every 15 meters
16 generally starting vibration measurement modules 1 in the A of tunnel are constituted.Generally starting and vibration measurement module 1 pass through essence peace
Full digital transmission line 2 is connected to local measurement data hub 3, and the electric power buffering that the hub is connected to essential safety supplies
Device 4 is answered, and is connected to the capture control server 6 on the surface D of mining site via optics Ethernet 5.Capture control clothes
Business device 6 is connected to mining site scheduler system 7, global positioning satellite module 8, internal time module 9 and processing server 10.
The latter is connected to active attenuation damping chromatography imaging visual panel 11, active speed and/or decaying chromatography imaging visual face
Plate 12, passive speed and/or decaying visualization panel 13 and accumulation chromatography imaging visual panel 14.Mining site dispatches system 7
It is connected to coalcutter 15, the coalcutter is further equipped with apart from the others sends coal winning machine position for the position data of coalcutter
With the shearer position transducer 16 of operation control system 17, the coal winning machine position and operation control system are mining site scheduling systems
One of the component of system 7.
Each of generally starting and vibration measurement module 1 (Fig. 2) are provided with impulse oscillation driver 18 and three
Axis geophone 19, and it is mechanically attached to anchor 20, the anchor is embedded in longwell tunnel A's as needed
In in side wall or bottom or top.Three axis geophones 19 are connected to transmitter and receiver digital module 21, the transmitting
The input terminal and output end of the Digital Transmission of device and receiver digital module connect via the Digital Transmission supply line 2 of essential safety
The number for being connected to the channel for the measurement data local concentrator 3 powered by the electric power buffering feeding mechanism 4 of essential safety connects
Receive device.Impulse oscillation driver 18 is coupled equipped with electropneumatic distributor 22, the control unit of the electropneumatic distributor
To transmitter and receiver digital module 21.Through compressed nitrogen from the export supply of electropneumatic distributor 22 in impulse oscillation
The space equipped with compressed spring 24 on piston above the piston of the impact components 23 of driver 18.From supply unit 26
Pass through supply through the pneumatic media 25 in the form of compressed nitrogen in being stored in the portable pressure bottle with adjuster
Entrance of the pipeline supply to electropneumatic distributor 22.
Example III (system)
Another embodiment of the present invention is shown in FIG. 3, and it by be arranged in one of longwell tunnel A at least six
A generally starting and vibration measurement module 1 and at least six vibration measurement modules 28 being located in the A of longwell tunnel are constituted.
Generally starting and vibration measurement module 1 and vibration measurement module 28 are matched with such as the same system described in example II above
Set connection.Vibration measurement module 28 (Fig. 4) is made of the three axis geophones 19 for being mechanically attached to anchor 20, institute
Anchor is stated to be embedded in as needed in side wall, bottom or the top of longwell tunnel A.Three axis geophones 19 are connected to transmitting
Device and receiver digital module 21.
Claims (12)
1. a kind of method for measuring the opposite variation that the stress in front of longwell is concentrated comprising it is passive and/or main to utilize
It moves seismic tomography and is determined using the vibration measurements obtained using three axis geophones being mounted in tunnel
The opposite variation that stress is concentrated, the method are characterized in that capture control server (6) is spatially same in all channels
Step orientation and the operation of the coalcutter (15) with synchronized time interval and with informing in workspace (B) and the signal of position
It is closely related, to record the vibration measuring signal for coming from the three axis geophone (19) being mounted in longwell tunnel (A),
And on this basis, the capture control server is cooperated with processing server (10) to determine the position of seismism, and
After terminating each excavation of the coalcutter (15), the capture control server is divided using decaying damping tomography
The opposite variation for analysing the stress in the coal body (C) in front of the longwell, including swashing to by the exploitation head of the coalcutter (15)
The analysis for the seismic wave (FK) encouraged, and be after terminating the excavation during the coalcutter (15) stopping, the capture control
Control server is used by the seismic imaging of the rock mass between the longwell tunnel (A) by the impulse oscillation from mining site surface
The seismic wave (FS) that driver (18) is remotely triggered by processing server (10) come realize active speed or decaying chromatography at
Picture, and the capture control server followed by passive speed and/or decaying tomography use by exploitation it is caused as
The stress is analyzed in the vibration in the source of seismic wave (FP), then periodically, during an exploitation shift several times, is drawn
The average accumulated tomography figure of the opposite variation of stress out, and draw the figure of specific tomography.
2. the method according to claim 1, wherein being passed through using the active tomography in the longwell lane
The seismic imaging of the rock mass between road (A) utilizes the manual-induced ground triggered by the impulse oscillation driver (18)
The analysis that seismic wave (FS) carries out the opposite variation of stress, the coalcutter (15) terminates the excavation and the exploitation wherein
It is executed automatically in the state of head power cut-off, and when the coalcutter (15) restores exploitation during tomography measurement, after
Person, which is interrupted, exploits head until terminating next excavation and stopping the coalcutter (15) and close it.
3. method according to claim 1 or 2, which is characterized in that synchronous with clock reference beat with preset sample frequency
Sampling and analog-to-digital conversion from the signal to the three axis geophone (19) are executed, measurement data local concentrator is made
(3) internal time is same via capture control server (6) and global positioning satellite module (8) using IEEE 1588PTP agreement
Step.
4. the method according to claim 1, wherein the average accumulated tomography of the opposite variation of the stress
The figure of figure and/or specific tomography is on accumulation chromatography imaging visual panel (14) and in addition in active attenuation damping layer
It analyses on imaging visual panel (11), in active speed and/or decaying chromatography imaging visual panel (12) and passive
It is visualized in speed and/or decaying visualization panel (13).
5. the method according to claim 1, wherein the long-range starting of the impulse oscillation driver (18) passes through
Pressurized media are provided from supply module (26) to the space above the piston in explosive element (23) to realize, described provide is led to
It crosses and utilizes being sent from the processing server (10) on the surface for being located at the mining site and be transmitted through the capture
The signal (27) of control server (6) and transmitter and receiver digital module (21) opens electropneumatic distributor (22)
To realize.
6. the method according to claim 1, wherein generally starting and vibration measurement module (1) are as needed
It is arranged in the side wall of the longwell tunnel (A) or in bottom or in top, and is attached to pre-installation anchor (20) and root
According to before the longwell and then mobile.
7. a kind of system for measuring the opposite variation that the stress in front of longwell is concentrated comprising three be mounted in tunnel
Axis geophone, the system are characterized in that it includes recording from three axis being mounted in longwell tunnel (A)
Shake wave detector (19) vibration measuring signal capture control server (6), in workspace (B) coalcutter (15) operation with
And position sensor (16), determine seismism position processing server (10) and by the processing server
(10) the impulse oscillation driver (18) remotely controlled from mining site surface；The system, which has, is arranged in the longwell tunnel (A)
One of at least six generally startings and vibration measurement module (1) and be arranged in the longwell tunnel (A)
At least six vibration measurement modules (28), or be arranged as in each of described longwell tunnel (A) six at least 12
A generally starting and vibration measurement module (1), the generally starting and vibration measurement module via essential safety number
Transmission line (2) is connected to measurement data local concentrator (3), and the concentrator is connected to the electric power buffering supply dress of essential safety
It sets (4) and is connected to the capture control server (6) via optics Ethernet (5), the capture control server is connected to
Mining site dispatches system (7), global positioning satellite module (8), internal time module (9) and the processing server (10).
8. system according to claim 7, which is characterized in that mining site scheduling system (7) via coal winning machine position and
Operation control system (17) is connected to the coalcutter (15), and the coalcutter is equipped with shearer position transducer (16).
9. system according to claim 7, which is characterized in that the generally starting and vibration measurement module (1) setting
There are the impulse oscillation driver (18) and the three axis geophone (19), and is mechanically attached to be embedded in institute
The anchor (20) in the side wall of longwell tunnel (A), in bottom or top is stated, and is the three axis geophone (19)
It is connected to transmitter and receiver digital module (21).
10. system according to claim 9, which is characterized in that the impulse oscillation driver (18) is provided with electronic gas
Dynamic distributor (22), the control unit of the electropneumatic distributor are coupled to the transmitter and receiver digital module
(21), space above the piston of the impact components (23) and in the impulse oscillation driver (18) on piston equipped with compressing
Spring (24) and the outlet for being connected to the electropneumatic distributor (22), and the entrance of the electropneumatic distributor (22) is logical
Piping (25) is connected to the supply module (26) using the form through compressed nitrogen.
11. system according to claim 9, which is characterized in that it includes being mechanically attached to institute that the system, which has,
The vibration measurement module (28) of the three axis geophone (19) of anchor (20) is stated, the anchor is embedded in as needed
In the side wall of the longwell tunnel (A), bottom or top, wherein the three axis geophone (19) is connected to the transmitting
Device and receiver digital module (21).
12. system according to claim 7, which is characterized in that the processing server (10) be connected to accumulation chromatography at
As visualization panel (14) and it is connected to active attenuation damping chromatography imaging visual panel (11), active speed and/or decaying
Tomography visualizes panel (12) and passive speed and/or decaying visualization panel (13).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL409987A PL230218B1 (en) | 2014-10-30 | 2014-10-30 | Method and the system for measurements of relative changes in concentration of stresses in front of the mining longwall face |
| PLP.409987 | 2014-10-30 | ||
| PCT/PL2014/000124 WO2015002557A2 (en) | 2014-10-30 | 2014-10-31 | Method and system for measuring relative changes in stress concentration in front of a longwall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105765409A CN105765409A (en) | 2016-07-13 |
| CN105765409B true CN105765409B (en) | 2019-07-12 |
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| CN201480002445.1A Expired - Fee Related CN105765409B (en) | 2014-10-30 | 2014-10-31 | For measuring the method and system for the opposite variation that the stress in front of longwell is concentrated |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN105765409B (en) |
| PL (1) | PL230218B1 (en) |
| RU (1) | RU2604532C2 (en) |
| UA (1) | UA118088C2 (en) |
| WO (1) | WO2015002557A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291702A (en) * | 2016-10-17 | 2017-01-04 | 中国矿业大学 | A kind of Time-lapse Seismic Monitoring method of mining areas of mine area of stress concentration |
| CN107091089B (en) * | 2017-07-04 | 2019-01-11 | 中国矿业大学 | Automatic lifting of shearer device and method based on coalcutter focus forward probe |
| CN108956933B (en) * | 2017-08-25 | 2023-07-14 | 山东科技大学 | Method and device for simulating reverse fault formation in laboratory |
| CN110261901B (en) * | 2019-06-10 | 2020-06-23 | 武汉大学 | Deep rock mass rockburst intensity evaluation method based on induced vibration |
| CN111413735B (en) * | 2020-05-11 | 2022-08-26 | 安徽理工大学 | Coal face rapid earthquake transmission chromatography method capable of simultaneously exciting multiple seismic sources |
| CN111812714B (en) * | 2020-06-08 | 2022-11-15 | 中煤科工集团西安研究院有限公司 | Coal seam longitudinal and transverse wave velocity obtaining method based on refracted longitudinal waves and high-frequency trough waves |
| RU2768768C1 (en) * | 2021-06-02 | 2022-03-24 | Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") | Method for determining the stress state of rock formations |
| CN113779789B (en) * | 2021-09-06 | 2022-06-21 | 重庆大学 | Intelligent working face overlying rock stress sensing method based on support dynamic pressure difference index |
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Also Published As
| Publication number | Publication date |
|---|---|
| PL409987A1 (en) | 2016-05-09 |
| UA118088C2 (en) | 2018-11-26 |
| RU2604532C2 (en) | 2016-12-10 |
| CN105765409A (en) | 2016-07-13 |
| RU2015101765A (en) | 2016-08-27 |
| WO2015002557A3 (en) | 2015-09-11 |
| PL230218B1 (en) | 2018-10-31 |
| WO2015002557A2 (en) | 2015-01-08 |
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