CN101344012A - Dynamic monitoring system of coal mine roof plate - Google Patents
Dynamic monitoring system of coal mine roof plate Download PDFInfo
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- CN101344012A CN101344012A CNA2008101387798A CN200810138779A CN101344012A CN 101344012 A CN101344012 A CN 101344012A CN A2008101387798 A CNA2008101387798 A CN A2008101387798A CN 200810138779 A CN200810138779 A CN 200810138779A CN 101344012 A CN101344012 A CN 101344012A
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Abstract
The invention discloses a dynamic monitoring system of a top plate of a coal mine; the data of four subsystems of a monitoring subsystem of a hydraulic bracket of the comprehensive mechanized mining face under the coal mine, a monitoring subsystem of wall rock delamination and a top plate of a laneway, a monitoring subsystem of super supporting stress of coal rock and a monitoring subsystem of supporting stress of an anchoring rod of the wall rock of the laneway is transmitted to a main monitoring station which is used for the coal mine and arranged under the mine by a data communication cable used for the coal mine; the main monitoring station used for the coal mine transmits the data to a data communication interface which is used for the coal mine and arranged on the mine by compatible telephone lines or an ethernet ring network exchanger; then the data is transmitted to a monitoring server which is provided with monitoring and analysis software by the data communication interface used for the coal mine; the data is transmitted to a network exchanger by the monitoring server, then to a local area network of the coal area by the network exchanger and to a GPRS transceiver and a GPRS common data network. The invention carries out stationing under the mine according to the occurrence characteristic and the physical and mechanical properties of the coal terrane, arranges sensors of the four subsystems and realizes the data share of the whole coal area.
Description
Technical field
The present invention relates to the top board dynamic monitoring system of colliery underworkings and work plane.
Background technology
In all kinds of coal mining accidents, the roof accident position of still ranking forefront.Shift along with the increase of the raising of production capacity, mining rate with to deep mining, the roof safety problem more and more shows especially, is mainly reflected in three aspects: the one, and be the stability of the roadway of principal mode with the bolt support.Does existing supporting parameter have much safety factor on earth? need monitoring means to assess and potential danger forecasting.The 2nd, is leading bearing pressure influence basin much? how high is the pressure intensity? is the high peak position of bearing pressure wherein? how many be bearing pressure speed of advancement? Deng, with other monitoring problems such as advance support and the closely related factors of bump; The 3rd, coal face support stability and safety.How is the scaffold working face duty? whether does supporting satisfy the requirement of control top board? be stope overlying rock first weighting and periodic weighting step pitch much? when pressing present support system there are much influences etc.At present, existing monitoring means all is independently on the colliery, comprises fully-mechanized mining working surface hydraulic support monitoring system under the coal mine, back and surrounding rock separation layer monitoring system, the leading bearing stress monitoring system of coal petrography, roadway surrounding rock bolt support stress monitoring system etc.Because each monitoring means is separate, so can not carry out comprehensive analysis processing to the data that monitor; Except monitoring means was independent, the independent monitoring of each mine main had also restricted the resource-sharing in whole mining area.Therefore, make full use of Internet resources, set up a cover " based on the mine roof safety monitoring system of ethernet technology ", safety of coal mines is on a new level to have a practical significance to impelling, and has important application value in national colliery.Summary of the invention
Purpose of the present invention proposes a kind of full mine ore deposit of setting up based on the Ethernet platform of realizing and is pressed in the comprehensive monitor system of line monitoring exactly for satisfying the coal mine downhole safety needs.The computer network platform that this system utilizes mining area or mine to set up is formed mineral bureau's level mining area monitoring network with each mine main top board dynamic monitoring system, realizes the automation and the information sharing of ore deposit pressure monitoring.
Technical scheme of the present invention is: it comprises four subsystems in down-hole, it is down-hole fully-mechanized mining working surface hydraulic support monitoring system, back and surrounding rock separation layer monitoring system, the leading bearing stress monitoring system of coal petrography, roadway surrounding rock bolt support stress monitoring system, the mining monitoring main website that the data that it is characterized in that above-mentioned four subsystems are sent to by the mine data communication cable that the down-hole is provided with, mining monitoring main website is sent to the mine data communication interface of aboveground setting by compatible telephone line or ethernet ring network switch, by the mine data communication interface to monitor server, monitor server is sent to the network switch again, to the mining area LAN, and be sent to the GPRS transceiver by the network switch to the GPRS public data network.Monitor server of the present invention adopts Industrial Personal Computer (IPC), and the system monitoring analysis software adopts SQL Server database, and the CS/BS structure is carried out multinomial integratedly, and concurrent mechanism supports the diversification parameter to analyze and warning function.
The treatment step of monitoring analysis software is: 1, according to the mine situation stope top board parameter and alarm threshold value are set earlier; 2, the real time data and the alarm threshold value that receive of monitor server compares, and comparative result exceeds threshold range, and software sends affair alarm information; 3, regularly deposit real time data in database simultaneously; 4, the data in the database are carried out trend analysis, multi-parameter association analysis and mining conditions comparative analysis; 5, above analysis situation is done following the processing according to the stope top board parameter of input again, the one, generate group financial statements, the 2nd, the integrated forecasting situation of the danger of output coal mine roof plate, the 3rd, output to the GPRS transceiver, authorized user is carried out the output of GPRS data.
Native system is layouted in the down-hole according to the occurrence characteristics and the physico-mechanical properties of coal rock layer, installs the sensor of four subsystems.Reflect the mathematics mechanical mode of adjoining rock stability state or prop duty according to dissimilar monitored data,, analyze and explain, reach following automatic identification decision: 1) roadway surrounding rock safety by Industrial Personal Computer (IPC) to the monitored data of four subsystems; 2) or the stability of end support and reliability; 3) or the duty of anchor pole and support; 4) or leading abutment pressure distributes and transfer characteristic etc.Four subsystems are adjacent in twos, cover the gamut of inside and outside stress field, and at one time, information is pressed in the ore deposit that can monitor the diverse location place; Along with roof strata moves to remarkable motion metastable, again in the overall process of roof weighting, the abutment pressure peak will experience earlier expansion forwards, the reciprocal process that shrink to the work plane direction back, above-mentioned four subsystems will experience pressure in succession and manifest peak phase, and people just can predict the information state of adjacent system (next subsystem) from the information state of last sub-system (a last subsystem) like this; In like manner, can be from the checking of the current information state of next subsystem before this in the correctness of a last sub-system prediction, thus improve the science and the accuracy of top board dynamic monitoring.
Native system has been realized following advantage: the present invention has realized the data sharing in full mining area.Its theoretical foundation is based on " the inside and outside stress field theory " that mine pressure distributes.Advance with stope, the distribution of overlying rock motion and mine pressure all is among the continuous variation, and wherein overlying rock (comprising top board) laws of motion have determined the regularity that mine pressure distributes and manifests.Disclosing that overlying rock motion, mine pressure distribute and the causal basis of strata behaviors on, the strata behaviors information that can obtain by actual measurement just, the situation of change of motion of prediction overlying rock and mine pressure distribution.
Coal mine roof plate dynamic monitoring key is the monitoring that stope mine pressing is manifested the roof strata motion that has a significant effect, and the roof strata motion has periodically, and monitoring roof strata cycle movement process is the core of monitoring.In roof strata cycle movement process, mine pressure distributes and to demonstrate fully with the regularity that manifests: same position is in the different time ore deposit and presses that to manifest rule different; In the different time, the ore deposit at diverse location place is pressed and is manifested the rule difference.The present invention has realized in the overall process of top board cycle movement that as far as possible in the larger context the multiple ore deposit of the omnidistance monitoring information of pressing is also carried out analysis-by-synthesis, thereby obtains prediction result accurately.
Characteristics of the present invention also are: four sub-system layout schemes according to above-mentioned top board dynamic monitoring theory carry out.Monitoring system adopts two-stage bus tree, and the underground monitoring network is the center with the stope, and layout draws near.The order that draws near is successively:
1, roadway surrounding rock bolt support stress monitoring subsystem.The position on abutment pressure peak in the main monitoring external carbuncle field, the roadway surrounding rock stress state is estimated anchor pole duty and roadway surrounding rock stability status, for bolt support and bump prevention etc. provides foundation.
2, the leading bearing stress monitoring subsystem of coal petrography.This system is arranged in the ahead work face tunnel, it is two parts of inside and outside stress field on boundary that sensor is distributed in roof strata end broken string, main monitoring roof strata is in relatively stable and remarkable motion overall process, abutment pressure is apparent in the change procedure in the inside and outside stress field, change the ore deposit pressure problem of making a strategic decision foundation is provided for the foundation abutment pressure distributes and shifts, as peak pressure distributing position, scope, roof weighting long term, mid-range forecast etc.
3, back and surrounding rock separation layer monitoring subsystem.This system is positioned at stope top roof strata, and main monitoring closes on the absciss layer situation in the top board rock pillar of stope, for the aggregate motion situation of overlying rock and directly the absciss layer on top and old top stride condition predicting foundation be provided.
4, fully-mechanized mining working surface hydraulic support monitoring subsystem under the coal mine.Native system is positioned at stope, advances monitoring support works resistance with stope, for studying rational support---and the design and the management of country rock relation, Roof Control provide foundation.
The position of above-mentioned four subsystems does not isolate, but is mutually related.From the space, four subsystems are adjacent in twos, cover the gamut of inside and outside stress field, and at one time, information is pressed in the ore deposit that can monitor the diverse location place.Go up from the time, along with roof strata moves to remarkable motion metastable, in the overall process of roof weighting, the abutment pressure peak will experience earlier expansion forwards again, and the back is to the reciprocal process of work plane direction contraction.Above-mentioned four subsystems will experience pressure in succession and manifest peak phase, and we just can predict the information state of adjacent system (next subsystem) from the information state of last sub-system (a last subsystem) like this; In like manner, can be from the checking of the current information state of next subsystem before this in the correctness of a last sub-system prediction, thus improve the science and the accuracy of top board dynamic monitoring.
With reference to Fig. 1, Fig. 2 embodiments of the invention are described.
Description of drawings
Fig. 1 is an integral arrangement structural representation of the present invention.
Fig. 2 is a data handling procedure schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes following four type families system:
1, the fully-mechanized mining working surface hydraulic support monitoring subsystem can be made up of a plurality of mining pressure monitoring substations (maximum 64) under the coal mine, mining pressure monitoring substation adopts the integrated monitoring sensor of multichannel, the sensor tracting pressuring hole directly is connected with the fully mechanized mining supporter hydraulic cavities by high-pressure oil pipe, sensor monitors to signal be converted to data signal through mining pressure monitoring substation, mining pressure monitoring substation is connected with upper mining monitoring main website by RS485 interface, mining communication cable, carries out transfer of data.
2, back and surrounding rock separation layer monitoring subsystem are made up of mine data communication substation and bus type delamination monitoring sensor, the delamination monitoring sensor monitors to coal mine roof plate roadway surrounding rock separation layer position, the signal of absciss layer velocity variations be transferred to mine data communication substation by mining communication cable, mine data communication substation is connected with upper mining monitoring main website by RS485 interface, mining communication cable, carries out transfer of data.
3, the leading bearing stress monitoring subsystem of coal petrography is made up of mine data communication substation and bus type drilling in coal and rock strain gauge, the stress actuating signal of the exercise induced of the coal petrography stope overlying rock that the drilling in coal and rock strain gauge monitors is transferred to mine data communication substation by mining communication cable, mine data communication substation is connected with upper mining monitoring main website by RS485 interface, mining communication cable, carries out transfer of data.
4, roadway surrounding rock bolt support stress monitoring subsystem is made up of mine data communication substation and bus type anchor stress sensor, the signal of initial anchored force of the anchor pole that anchor stress sensor monitors and the stressed variation of anchor pole is transferred to mine data communication substation by mining communication cable, mine data communication substation is connected with upper mining monitoring main website by RS485 interface, mining communication cable, carries out transfer of data.
Mining monitoring main website is transferred to aboveground monitor server (Industrial Personal Computer (IPC)) with the data of each above-mentioned four monitoring subsystem by compatible telephone line (or single-mode fiber) and mine data communication interface.Monitor server carries out comprehensive analysis processing (comprising ore deposit pressure rule analysis of trend, the statistical analysis of roof pressure monitored data, affair alarm analysis etc.) by monitoring analysis software to data.By the network switch transfer of data is arrived the mine LAN; By the GPRS transceiver data are sent to the GPRS public data network,, realize that the cellphone subscriber who authorizes receives different data messages and alert service according to the configuration information of software.
Fig. 2 shows data handling procedure of the present invention.1, according to actual measurement mine situation stope top board parameter and alarm parameters are set, set alarm threshold value and be input to monitor server; 2, monitor server receives real time data, compares with alarm threshold value, if exceed threshold range, sends affair alarm information; 3, real time data regularly deposits database in simultaneously, and deposits stope top board parameter in database; 4, monitoring analysis software carries out trend analysis to the data in the database, handles by the weighting of primary monitoring data being carried out different weights, and forming with time is the spectrum curve of coordinate, can reflect the action rule of roof pressure different time sections; 5, monitoring analysis software carries out the multi-parameter association analysis to the data in the database, the pressure parameter of top board and the displacement parameter of movement of roof are associated, connect analysis with the roadway support resistance again, can determine whether supporting parameter is suitable, whether the tunnel safety; 6, monitoring analysis software carries out the mining conditions comparative analysis to the data in the database, and different supporting conditions and coal-mining method are formed class, with the weights contrast of monitored data with the exploitation classification, determines whether to exist the supporting safety problem; 7, the analysis that goes on foot by above-mentioned 4-6, stope top board parameter one according to the input of the 3rd step is to generate group financial statements, the comprehensive pressure data that comprise every day, statistical analysis supporting acceptance value, the 2nd, export the deathtrap prediction case, give user's suggestion and measure etc., the 3rd, output to connection GPRS transceiver, the user who authorizes is carried out the output of GPRS data.
Claims (1)
1, a kind of dynamic monitoring system of coal mine roof plate, it comprises down-hole fully-mechanized mining working surface hydraulic support monitoring subsystem, back and surrounding rock separation layer monitoring subsystem, leading bearing stress monitoring subsystem of coal petrography and roadway surrounding rock bolt support stress monitoring subsystem, it is characterized in that, the mining monitoring main website that the data of above-mentioned four subsystems are sent to by the mine data communication cable that the down-hole is provided with, mining monitoring main website is sent to the mine data communication interface of aboveground setting by compatible telephone line or ethernet ring network switch, by the mine data communication interface to the monitor server that monitoring analysis software is housed, monitor server is sent to the network switch again, to the mining area LAN, and be sent to the GPRS transceiver by the network switch to the GPRS public data network;
The treatment step of monitoring analysis software is:
The first step: according to the mine situation stope top board parameter and alarm threshold value are set earlier;
Second step: real time data and alarm threshold value that monitor server receives compare, and comparative result exceeds threshold range, and software sends affair alarm information;
The 3rd step: regularly deposit real time data in database simultaneously;
The 4th step: the data in the database are carried out trend analysis, multi-parameter association analysis and mining conditions comparative analysis;
The 5th step: above analysis situation is done following the processing according to the stope top board parameter of input again, the one, generate group financial statements, the 2nd, the integrated forecasting situation of the danger of output coal mine roof plate, the 3rd, output to the GPRS transceiver, authorized user is carried out the output of GPRS data.
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| CN113323697B (en) * | 2021-05-31 | 2023-11-03 | 国能神东煤炭集团有限责任公司 | Bracket initial supporting force and working resistance recognition method, storage medium and electronic equipment |
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