CN101550841A - Coal and gas outburst hazard early warning system and early warning method - Google Patents
Coal and gas outburst hazard early warning system and early warning method Download PDFInfo
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Abstract
The invention relates to the field of coal mine safety technique, specifically to a down-hole coal and gas outburst hazard early warning system and early warning method. The coal and gas outburst synthesized early-warning system, uses the existing local area network to connect a synthesized early-warning data server, an early-warning data management system and the existing coal mine safety monitoring system; analyzes the coal and gas outburst early-warning data in the synthesized early-warning data server by an outburst early-warning module; and emits early-warning information based on the analyzed result. The inventive coal and gas outburst synthesized early warning system and early warning method can perform centralized management and comprehensive analysis of the geological structure, coal seam occurrence, gas occurrence, mining production, daily forecast indicators, outburst forecast, gas emission and other security information that originally scatter in various functional sections of coal mine on the geographical information system GIS platform, integrates the existing resources, improves the accuracy of early warning, so that the early warning is both real-time and forward-looking, and can effectively prevent the occurrence of coal and gas outburst in coal mine.
Description
Technical field
The present invention relates to the safety of coal mines technical field, be specifically related to the early warning system and the method for early warning of the outstanding disaster of a kind of down-hole coal and gas.
Background technology
Coal and gas outstanding (hereinafter to be referred as " giving prominence to ") are a kind of extremely complicated dynamic phenomenons that occurs under the coal mine; it can be in a short period of time; by coal and rock to tunnel or stope dish out a large amount of coal petrographys and gas; produce as push over mine car, destroy support, cause dynamic effect such as the distinguished and admirable reverse in tunnel; destroy down-hole facilities and equipment and ventilation system through regular meeting; and cause coal to bury casualty accidents such as personnel, gas asphyxiation, gas explosion easily, bring serious threat to the colliery safety in production.China is one of the most serious country of outstanding in the world disaster, projecting mine is many, the distribution region is wide, outstanding accident is many, intensity is big, the number of casualties is many, so the control of outstanding disaster is coal industry scientific worker and safety management person's a primary study content always.Research and practice through decades, China has formed a cover collection outburst hazard prediction, outburst prevention measures, outburst prevention measures validity check, safety prevention measure in interior " quaternity " comprehensive outburst control measure technical system, implementation by this cover protrusion-dispelling system, instructed the control of outstanding disaster effectively, but, because a variety of causes still can not block up the generation of giving prominence to disaster extremely at present fully.
The outburst hazard prediction is the important step of outstanding integrated control system, at present, each projecting mine of China is the mode by drilling mainly, measures the outburst hazard of zone, coal seam or work plane, takes outburst prevention measures to eliminate outburst danger at adventurous zone or work plane then.But present outburst prediction method and index exist following main not enough: 1. Chang Yong outburst prediction method be in time static, spatially be discontinuous, still can not predict outburst hazard in real-time continuous ground; 2. outburst hazard is to determine according to the item forecast desired value of measuring, but, mostly prediction index commonly used is to influence with the reflection of part indirectly the three big factors (physico-mechanical properties of stress, gas bearing situation and coal that coal body is suffered) of outburst hazard, and objectively also there is certain limitation in index; 3. mostly common forecasting method is the state of prediction outburst hazard, and does not consider to be unfavorable for dangerous development trend taking measures in advance; 4. common forecasting method is general only simple definite according to the size of testing index, and dynamically do not take all factors into consideration the gush out situation of change etc. of situation, outstanding omen situation, daily outburst hazard prediction index of coalbed gas geology situation around the work plane, exploitation deployment scenarios, protrusion-dispelling technical measures implementation status, face gas, the outburst prediction accuracy rate is still waiting to improve; 5. predicting the outcome, it is dangerous and be safe from danger two kinds generally to be divided into, and when danger, still can not provide danger classes.
At present, the most coal and gas outburst mines of China have all been installed coal mine safety monitoring system (producing comprehensive monitoring system etc. as KJ90 moulded coal ore deposit safety comprehensive monitoring system, KJ101 type Mine Monitoring and Control System, KJ95 Coalmine's Monitoring and Controlling System, KJF2000 mine safety), but, outburst prediction is not nearly all analysed in depth, realized to monitor data, and the effect of monitoring system also is not fully exerted.Development along with informationization technology, the colliery LAN of oneself has all been set up in most collieries, can realize sharing of part security information, but, what realization was shared is the managerial information of colliery routine safety mostly, unusual shortcoming also aspect specialized informations such as coal and gas outburst prevention treatment shared is unfavorable for analysis-by-synthesis and the early warning given prominence to.Aspect the figure drafting of ore deposit, most mines have all adopted the CAD drawing, but, the ore deposit figure of this electronization can't satisfy digitized needs, at present, some software companys have developed based on the ore deposit figure drawing system of geographical information system (GIS) and at the part mine and have applied, and for the digitlization and the information work of mine are laid a good foundation, also provide condition for the outstanding early warning technology research and development of coal and gas.
At present, China does not still set up the outstanding pre-alarming system of coal and gas, and the research of giving prominence to method for early warning has also just been begun starting.
Summary of the invention
In view of this, in order to address the above problem, for this reason, the present invention proposes a kind of existing coal mine safety monitoring system, mine LAN, digitlization mine map of utilizing and gives prominence to early warning system for the coal and the gas on basis, to relevant security information monitor in real time, analysis-by-synthesis and intelligent early-warning, thereby take outstanding accordingly prophylactico-therapeutic measures for mine, carrying out the outstanding diaster prevention and control of gas provides foundation.
The object of the present invention is achieved like this: coal and gas outburst hazard early warning system comprise
Geographical information system GIS is as the basic platform of realizing outstanding early warning Data Digital of coal and gas and coal and the outstanding disaster comprehensive pre-warning of gas;
The comprehensive pre-warning data server is used to store early warning integrated database and early warning rule;
The early warning integrated database is used to store the information data of the outstanding early warning of all coals and gas;
The early warning data management system is used for safeguarding coal and the outstanding early warning data of gas in the comprehensive pre-warning data server early warning integrated database;
The coal mine safety monitoring system data collecting system is used for reading in real time the real-time monitor data information of coal mine safety monitoring system gas density, and it is uploaded to early warning integrated database in the comprehensive pre-warning data server;
Outstanding pre-warning management system, the outstanding early warning information data of the coal of early warning integrated database and gas according to warning index, are carried out coal and gas outburst hazard early warning in the analysis integrated early warning data server, send early warning information.
Further, described early warning data management system comprises:
The geological survey management system is used for safeguarding the geological survey information data of comprehensive pre-warning data server early warning integrated database;
The coalbed gas geology analytical system is used for safeguarding the coalbed gas geology information data of comprehensive pre-warning data server early warning integrated database;
Digging dynamic information management system is used for safeguarding the digging multidate information data of comprehensive pre-warning data server early warning integrated database;
The monitor data intelligent analysis system is used for the maintenance monitoring system gas information data of gushing out, intelligence computation and the outstanding relevant gas dynamic indicator of gushing out;
The protrusion-dispelling dynamic management system is used for safeguarding the daily prediction index of comprehensive pre-warning data server early warning integrated database, the information data of outstanding omen, coal seam thickness and soft lift height;
Outstanding warning index management system is used for safeguarding comprehensive pre-warning data server warning index and threshold information thereof;
Further, outstanding pre-warning management system carries out digitized processing and integrated with coal and the outstanding early warning data of gas in the GIS geographical information system.
The present invention also provides a kind of coal and gas outburst hazard method for early warning, comprises following aspect:
1) the geological survey information manager is by the geological survey information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the geological survey information data, and geology metrical information data are safeguarded;
The coalbed gas geology information manager is by the coalbed gas geology information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the coalbed gas geology information data, and the coalbed gas geology information data is safeguarded;
The digging information manager is by digging dynamic information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the digging information data, and the digging information data is safeguarded;
Protrusion-dispelling administrative staff are by the protrusion-dispelling dynamic management system, and the early warning integrated database in the comprehensive pre-warning data server adds information datas such as daily prediction index, outstanding omen, coal seam thickness, soft lift height, and these data are safeguarded;
The coal mine safety monitoring system data collecting system reads the real-time monitor data information of coal mine safety monitoring system gas density in real time automatically, and it is uploaded to early warning integrated database in the comprehensive pre-warning data server;
Protrusion-dispelling administrative staff are by outstanding pre-warning management system, and the early warning integrated database in the comprehensive pre-warning data server adds warning index and threshold information data thereof, and warning index and threshold information data thereof are safeguarded.
2) outstanding pre-warning management system, the outstanding early warning information data of the coal of early warning integrated database and gas according to method for early warning and rule, are carried out coal and gas outburst hazard early warning in the analysis integrated early warning data server, send early warning information.
Further, described step 2) specifically comprise the steps:
21) outstanding early warning system is visited exploration line, the data of holes drilled in coal borer hole, the spatial information of seeing coal point, stratum, coal seam, construction data and tunnel survey data and the generation of their the attribute information mine digitlization mining engineering plan based on the GIS geographical information system according to geological prospecting borehole in the geology metrical information data and down-hole, provides basic platform for realizing coal and gas outburst hazard early warning;
22) outstanding early warning system is according to the actual measurement of the mine in the coalbed gas geology information data gas pressure, gas bearing capacity and coal sample gas parameter, generate gas pressure, gas bearing capacity and gas emission isopleth and coal-bed gas geological map, indicate ocurrence of coal seam exceptions area, soft layering and compose and deposit exceptions area, high gas district, outburst danger district, area of stress concentration and geological structure band, generate coal-bed gas geological map based on the GIS geographical information system;
23), digging unusual from coalbed gas geology produced at least one aspect that influence, gas gush out feature, daily prediction index and the outstanding omen and carried out the outburst hazard comprehensive pre-warning;
Further, described step 23) specifically comprise the steps:
231) outstanding early warning system is composed the actual range of depositing between exceptions area, high gas district, outburst danger district, area of stress concentration or the geological structure band according to real space position and ocurrence of coal seam exceptions area, the soft layering of the judgement of the daily digging drilling depth of the work plane data message in digging dynamic information management system evaluation work face, compose when depositing exceptions area, high gas district, outburst danger district, area of stress concentration or geological structure band near ocurrence of coal seam exceptions area, soft layering when getting working face, send the early warning alarm;
Further, described step 2) also comprise the steps:
232) gas that calculates automatically according to the monitor data intelligent analysis system of the outstanding early warning system dynamic indicator of gushing out, and send early warning information according to the gas dynamic indicator of gushing out;
233) outstanding early warning system is carried out coal and the outstanding early warning of gas according to outstanding omen information in the protrusion-dispelling information data and the daily prediction index of getting working face, sends early warning information; Described outstanding omen comprises stick of tool, crown drill and rings the coal big gun that the daily prediction index of described getting working face comprises drilling cuttings desorption of mash gas index and coal powder quantity of bore.
The present invention is with respect to prior art, has following advantage: utilize existing coal mine safety monitoring system (as KJ90, KJ66, KJ2000 etc.) and the LAN set up of mine, by coal of the present invention and gas outburst hazard early warning system and method for early warning, the geological structure of each functional department of colliery will be scattered in, ocurrence of coal seam, gas bearing, digging is produced, daily prediction index, outstanding omen, gas security information such as gush out is managed concentratedly and analysis-by-synthesis on geographical information system GIS platform, integrate the existing resources, reduce forecast cost, improve the accuracy rate of early warning, make early warning have real-time and perspective simultaneously, effectively prevent the generation of the outstanding disaster of colliery coal and gas.
Other advantages of the present invention, target, to set forth in the following description to a certain extent with feature, and to a certain extent,, perhaps can obtain instruction from the practice of the present invention based on being conspicuous to those skilled in the art to investigating hereinafter.Target of the present invention and other advantages can be passed through following manual, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing:
Fig. 1 shows the schematic network structure of coal and gas outburst hazard early warning system;
Fig. 2 shows relevant warning index and information in coal and the gas outburst hazard method for early warning.
The specific embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.
Referring to Fig. 1, the coal and the gas outburst hazard early warning system of present embodiment comprise:
Geographical information system GIS1 is as the basic platform of realizing outstanding early warning Data Digital of coal and gas and coal and the outstanding disaster comprehensive pre-warning of gas;
Comprehensive pre-warning data server 2 is used to store comprehensive pre-warning database and early warning rule;
Early warning integrated database 3 is used to store the information data of the outstanding early warning of all coals and gas;
Early warning data management system 4 is used for safeguarding the coal and the outstanding early warning data of gas of comprehensive pre-warning data server;
Coal mine safety monitoring system data collecting system 5 is used for reading in real time the real-time monitor data information of coal mine safety monitoring system gas density, and it is uploaded to the comprehensive pre-warning data server;
Outstanding pre-warning management system 6, coal in the analysis integrated early warning data server and gas are given prominence to the early warning information data, carry out digitized processing and integrated in geographical information system GIS1, according to method for early warning and rule, carry out coal and gas outburst hazard early warning, send early warning information;
Described early warning data management system 4 specifically comprises:.
Geological survey management system 41 is used for safeguarding the geological survey information data of comprehensive pre-warning data server early warning integrated database;
Coalbed gas geology analytical system 42 is used for safeguarding the coalbed gas geology information data of comprehensive pre-warning data server early warning integrated database;
Digging dynamic information management system 43 is used for safeguarding the digging multidate information data of comprehensive pre-warning data server early warning integrated database;
Monitor data intelligent analysis system 44 is used for the maintenance monitoring system gas information data of gushing out, the intelligence computation gas dynamic indicator of gushing out;
Protrusion-dispelling dynamic management system 45 is used for safeguarding information datas such as the daily prediction index of comprehensive pre-warning data server early warning integrated database, outstanding omen, coal seam thickness, soft lift height;
Outstanding warning index management system 46 is used for safeguarding comprehensive pre-warning data server warning index and threshold information thereof.
Coal and gas outburst hazard method for early warning are specially:
1) the geological survey information manager is by the geological survey information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the geological survey information data, and geology metrical information data are safeguarded;
The coalbed gas geology information manager is by the coalbed gas geology information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the coalbed gas geology information data, and the coalbed gas geology information data is safeguarded;
The digging information manager is by digging dynamic information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the digging information data, and the digging information data is safeguarded;
Protrusion-dispelling administrative staff are by the protrusion-dispelling dynamic management system, and the early warning integrated database in the comprehensive pre-warning data server adds information datas such as daily prediction index, outstanding omen, coal seam thickness, soft lift height, and these data are safeguarded;
The coal mine safety monitoring system data collecting system reads the real-time monitor data information of coal mine safety monitoring system gas density in real time automatically, and it is uploaded to the comprehensive pre-warning data server;
Protrusion-dispelling administrative staff are by outstanding pre-warning management system, and the early warning integrated database in the comprehensive pre-warning data server adds warning index and threshold information data thereof, and warning index and threshold information data thereof are safeguarded.
2) outstanding pre-warning management system, the outstanding early warning information data of the coal of early warning integrated database and gas according to method for early warning and rule, are carried out coal and gas outburst hazard early warning in the analysis integrated early warning data server, send early warning information; Specifically comprise the steps:
21) outstanding early warning system is visited exploration line, the data of holes drilled in coal borer hole, the spatial information of seeing coal point, stratum, coal seam, construction data and tunnel survey data and the generation of their the attribute information mine digitlization mining engineering plan based on the GIS geographical information system according to geological prospecting borehole in the geology metrical information data and down-hole, provides basic platform for realizing coal and gas outburst hazard early warning;
22) outstanding early warning system is according to the actual measurement of the mine in the coalbed gas geology information data gas pressure, gas bearing capacity and coal sample gas parameter, generate gas pressure, gas bearing capacity and gas emission isopleth and coal-bed gas geological map, indicate ocurrence of coal seam exceptions area, soft layering and compose and deposit exceptions area, high gas district, outburst danger district, area of stress concentration and geological structure band, generate coal-bed gas geological map based on the GIS geographical information system;
23), digging unusual from coalbed gas geology produced influence, the gas aspects such as feature, daily prediction index and outstanding omen that gush out and taken all factors into consideration and influence coal and gas and give prominence to every hazards and carry out the outburst hazard comprehensive pre-warning, specifically comprises the following aspects:
231) outstanding early warning system is composed the actual range of depositing between exceptions area, high gas district, outburst danger district or the geological structure band according to real space position and ocurrence of coal seam exceptions area, the soft layering of the judgement of the daily digging drilling depth of the work plane data message in digging dynamic information management system evaluation work face, when getting working face is composed coalbed gas geology exceptions area such as depositing exceptions area, high gas district, outburst danger district, area of stress concentration or geological structure band near ocurrence of coal seam exceptions area, soft layering, send the early warning alarm; Unusual main the referring to of coalbed gas geology influences coal and the outstanding various coalbed gas geology abnormal factorses of gas, composes as ocurrence of coal seam exceptions area, soft layering and deposits coalbed gas geology exceptions area such as exceptions area, high gas district, outburst danger district and geological structure band.
Method by the coalbed gas geology abnormity early warning is meant the gas parameter practical measurement numerical value according to mine geological structure development characteristics, ocurrence of coal seam information, coal seam, the actual mash gas dynamic phenomenon information that takes place, gas pumping parameter information, topping operational parameter information etc.; feature is deposited in the tax of coal seam, gas predict, the coal seam outburst hazard is carried out regional prediction, and generate the coal-bed gas geological map.According to the real space position of work plane and on every side the coalbed gas geology information in the certain limit carry out the outburst hazard advanced early warning, when the judgment task face near or when being positioned at ocurrence of coal seam exceptions area, soft layering and composing coalbed gas geology exceptions area such as depositing exceptions area, high gas district, outburst danger district and geological structure band, report to the police immediately.
The index of carrying out the early warning of work plane outburst hazard unusually by coalbed gas geology has specifically: the coal seam thickness coefficient of variation, soft lift height and work plane are apart from the distance in geological structure band, outburst danger district etc.As coal seam thickness coefficient of variation C
V〉=0.2 or soft lift height 〉=0.2m or work plane during apart from the distance in geological structure band, outburst danger district≤10m, carry out outburst hazard immediately and report to the police;
232) outstanding early warning system marks off because the scope of the area of stress concentration that the area of stress concentration of the generation that influences each other between the digging tunnel and reservation coal column produce on this basis according to the true spatial location information of tunnel, reservation coal column in the digging dynamic information management system.Judge the real space position and the actual range between above-mentioned these areas of stress concentration of evaluation work face again according to the daily digging drilling depth of work plane data message, when the close area of stress concentration of getting working face, send the early warning alarm.
Influencing the index of carrying out the early warning of work plane outburst hazard by digging production specifically is: work plane is apart from the distance of area of stress concentration.When work plane during, carry out outburst hazard immediately and report to the police apart from the distance of area of stress concentration≤10m;
233) gas that calculates automatically according to the monitor data intelligent analysis system of the outstanding early warning system dynamic indicator of gushing out is sent early warning information; Utilize the gas feature early warning of gushing out to refer to, calculate automatically and give prominence to the relevant gas dynamic indicator of gushing out, as 30min ton coal gas emission V behind the big gun by reading the Mine Monitoring and Control System face gas of the monitoring data of gushing out in real time in real time
30, the gas coefficient of variation K that gushes out
VDeng, that realizes the work plane outburst hazard reaches intelligent alarm in advance, in real time.Work as V
30〉=9 or K
V〉=0.7 o'clock, promptly carry out outburst hazard and report to the police.
234) outstanding early warning system is carried out coal and the outstanding early warning of gas according to outstanding omen information in the protrusion-dispelling information data and the daily prediction index of getting working face, sends early warning information; Whether utilizing outstanding omen information to carry out the outburst hazard early warning is meant: occur or various outstanding omen information such as stick of tool, crown drill, spray orifice, loud coal big gun take place according to work plane in the actual production process of mine, carry out the advanced early warning of work plane outburst hazard, when occurring or find one of various outstanding omen information such as stick of tool, crown drill, spray orifice, sound coal big gun, promptly carry out outburst hazard to report to the police; The daily prediction index of described getting working face comprises as drilling cuttings desorption of mash gas index K
1, Δ h
2, coal powder quantity of bore S etc.; On the one hand daily prediction index numerical value and its threshold according to current prediction loop practical measurement is analyzed, and the state of work plane outburst danger is carried out early warning, works as K
1〉=0.5 or Δ h
2When 〉=200Pa or S 〉=6.0Kg/m, promptly carry out outburst hazard and report to the police; Mensuration numerical value to the historical prediction loop of the daily prediction index of work plane carries out analysis-by-synthesis on the other hand, according to its variation tendency and amplitude the development trend of work plane outburst hazard is carried out advanced early warning.The continuous mensuration numerical value of the several historical prediction loop of statistics, when find its all above its index threshold 80% the time, promptly carry out the leading warning of work plane outburst hazard development trend.
The above is, digging unusual from coalbed gas geology of the present invention and produces influence, the gas aspects such as feature, daily prediction index and outstanding omen that gush out and take all factors into consideration and influence coal and gas is given prominence to coal and the gas outburst risk comprehensive pre-warning method that every hazards are carried out the outburst hazard comprehensive pre-warning.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. coal and gas outburst hazard early warning system is characterized in that: comprise
Geographical information system GIS is as the basic platform of realizing outstanding early warning Data Digital of coal and gas and coal and the outstanding disaster comprehensive pre-warning of gas;
The comprehensive pre-warning data server is used to store early warning integrated database and early warning rule;
The early warning integrated database is used to store the information data of the outstanding early warning of all coals and gas;
The early warning data management system is used for safeguarding coal and the outstanding early warning data of gas in the comprehensive pre-warning data server early warning integrated database;
The coal mine safety monitoring system data collecting system is used for reading in real time the real-time monitor data information of coal mine safety monitoring system gas density, and it is uploaded to early warning integrated database in the comprehensive pre-warning data server;
Outstanding pre-warning management system, the outstanding early warning information data of the coal of early warning integrated database and gas according to warning index, are carried out coal and gas outburst hazard early warning in the analysis integrated early warning data server, send early warning information.
2. coal according to claim 1 and gas outburst hazard early warning system is characterized in that: described early warning data management system comprises:
The geological survey management system is used for safeguarding the geological survey information data of comprehensive pre-warning data server early warning integrated database;
The coalbed gas geology analytical system is used for safeguarding the coalbed gas geology information data of comprehensive pre-warning data server early warning integrated database;
Digging dynamic information management system is used for safeguarding the digging multidate information data of comprehensive pre-warning data server early warning integrated database;
The monitor data intelligent analysis system is used for the maintenance monitoring system gas information data of gushing out, intelligence computation and the outstanding relevant gas dynamic indicator of gushing out;
The protrusion-dispelling dynamic management system is used for safeguarding the daily prediction index of comprehensive pre-warning data server early warning integrated database, the information data of outstanding omen, coal seam thickness and soft lift height;
Outstanding warning index management system is used for safeguarding comprehensive pre-warning data server warning index and threshold information thereof.
3. according to each described coal and gas outburst hazard early warning system in the claim 1 to 2, it is characterized in that: outstanding pre-warning management system carries out digitized processing and integrated with coal and the outstanding early warning data of gas in the GIS geographical information system.
4. coal and gas outburst hazard method for early warning is characterized in that may further comprise the steps:
1) the geological survey information manager is by the geological survey information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the geological survey information data, and geology metrical information data are safeguarded;
The coalbed gas geology information manager is by the coalbed gas geology information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the coalbed gas geology information data, and the coalbed gas geology information data is safeguarded;
The digging information manager is by digging dynamic information management system, and the early warning integrated database in the comprehensive pre-warning data server adds the digging information data, and the digging information data is safeguarded;
Protrusion-dispelling administrative staff are by the protrusion-dispelling dynamic management system, and the early warning integrated database in the comprehensive pre-warning data server adds information datas such as daily prediction index, outstanding omen, coal seam thickness, soft lift height, and these data are safeguarded;
The coal mine safety monitoring system data collecting system reads the real-time monitor data information of coal mine safety monitoring system gas density in real time automatically, and it is uploaded to early warning integrated database in the comprehensive pre-warning data server;
Protrusion-dispelling administrative staff are by outstanding pre-warning management system, and the early warning integrated database in the comprehensive pre-warning data server adds warning index and threshold information data thereof, and warning index and threshold information data thereof are safeguarded.
2) outstanding pre-warning management system, the outstanding early warning information data of the coal of early warning integrated database and gas according to method for early warning and rule, are carried out coal and gas outburst hazard early warning in the analysis integrated early warning data server, send early warning information.
5. coal as claimed in claim 4 and gas outburst hazard method for early warning is characterized in that: described step 2) specifically comprise the steps:
21) outstanding early warning system is visited exploration line, the data of holes drilled in coal borer hole, the spatial information of seeing coal point, stratum, coal seam, construction data and tunnel survey data and the generation of their the attribute information mine digitlization mining engineering plan based on the GIS geographical information system according to geological prospecting borehole in the geology metrical information data and down-hole, provides basic platform for realizing coal and gas outburst hazard early warning;
22) outstanding early warning system is according to the actual measurement of the mine in the coalbed gas geology information data gas pressure, gas bearing capacity and coal sample gas parameter, generate gas pressure, gas bearing capacity and gas emission isopleth and coal-bed gas geological map, indicate ocurrence of coal seam exceptions area, soft layering and compose and deposit exceptions area, high gas district, outburst danger district, area of stress concentration and geological structure band, generate coal-bed gas geological map based on the GIS geographical information system;
23), digging unusual from coalbed gas geology produced at least one aspect that influence, gas gush out feature, daily prediction index and the outstanding omen and carried out the outburst hazard comprehensive pre-warning.
6. coal as claimed in claim 5 and gas outburst hazard method for early warning is characterized in that: described step 23 specifically comprises the steps:
231) outstanding early warning system is composed the actual range of depositing between exceptions area, high gas district, outburst danger district, area of stress concentration or the geological structure band according to real space position and ocurrence of coal seam exceptions area, the soft layering of the judgement of the daily digging drilling depth of the work plane data message in digging dynamic information management system evaluation work face, compose when depositing exceptions area, high gas district, outburst danger district, area of stress concentration or geological structure band near ocurrence of coal seam exceptions area, soft layering when getting working face, send the early warning alarm.
7. coal as claimed in claim 6 and gas outburst hazard method for early warning is characterized in that: described step 2) also comprise the steps:
232) gas that calculates automatically according to the monitor data intelligent analysis system of the outstanding early warning system dynamic indicator of gushing out, and send early warning information according to the gas dynamic indicator of gushing out;
233) outstanding early warning system is carried out coal and the outstanding early warning of gas according to outstanding omen information in the protrusion-dispelling information data and the daily prediction index of getting working face, sends early warning information; Described outstanding omen comprises stick of tool, crown drill and rings the coal big gun that the daily prediction index of described getting working face comprises drilling cuttings desorption of mash gas index and coal powder quantity of bore.
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Cited By (50)
| Publication number | Priority date | Publication date | Assignee | Title |
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