CN202578785U - Stratum subsidence pre-warning system in coal mining process - Google Patents
Stratum subsidence pre-warning system in coal mining process Download PDFInfo
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- CN202578785U CN202578785U CN 201220037297 CN201220037297U CN202578785U CN 202578785 U CN202578785 U CN 202578785U CN 201220037297 CN201220037297 CN 201220037297 CN 201220037297 U CN201220037297 U CN 201220037297U CN 202578785 U CN202578785 U CN 202578785U
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Abstract
The utility model provides a stratum subsidence pre-warning system in a coal mining process. The stratum subsidence pre-warning system comprises a multi-parameter soil radon alpha energy spectrum measuring unit, a high-precision global position system (GPS) differential positioning device, an on-site multi-measuring-point data management device, a solar-based power management device, a ZigBee wireless network, a general packet radio service (GPRS) wireless network and a remote computer background monitoring system. The multi-parameter soil radon alpha energy spectrum measuring unit and the high-precision GPS differential positioning device are connected with the on-site multi-measuring-point data management device through the ZigBee wireless network. The on-site multi-measuring-point data management device is connected with the remote computer background monitoring system through the GPRS wireless network. The multi-parameter soil radon alpha energy spectrum measuring unit, the high-precision GPS differential positioning device and the on-site multi-measuring-point data management device are connected with the solar-based power management device. Through soil radon real-time measurement and high-precision GPS monitoring, the pre-warning purpose for stratum subsidence in the coal mining process is achieved.
Description
Technical field
The utility model relates to coal mining security monitoring field, is specifically related to ground subsidence early warning system in the progress of coal mining.
Background technology
Radon is the gaseous state radionuclide in the naturally radioactive decay series, and its decay constant is again a kind of not volatile radioactive substance.The zone of fracture that the ground subsidence process forms; For the migration of radon provides good passage, the radon in the stratum can be moved to the face of land under effects such as convection action, groundwater effect, microbubble effect, geothermal action, geostatic stress effect, tidal action, swabbing action, ground vapour effect, seepage effect.The development degree of zone of fracture can influence the migration level of radon to a certain extent in the stratum, specifically can be reflected at the earth radon information that measures in the surface soil.In progress of coal mining, collapsing the eve when the stratum, therefore inevitable energy measurement can use high-precision GPS difference location observation survey mark to the deformational displacement of gps coordinate position, can monitor the minor variations of settlement of stratum process.
One of energy that coal resources are extensively utilized by the mankind, there is a large amount of coal mining operations in the colliery in that China has over thousands of seat to differ in size.And in progress of coal mining, surface collapse is one of major Safety of present coal mining, and the rock stratum subsides in the progress of coal mining, badly influences the safety in production of coal mining industry.The colliery is the complication system of collection manual work, machinery, mining engineering, geological conditions and natural environment coexistence, and Fundamentals such as its catastrophe mechanism, approach are difficult to confirm that factor state ambiguity is strong, secure data is abundant inadequately, and accident rate is higher.The colliery that regular meeting the differs in size during China incident of caving in.Therefore, when carrying out coal mining, the work of surface collapse safe early warning seems particularly important.
At present, the coal mining safety evaluation is the basis with safety system engineering theory and method, according to corresponding program and method, the hazards, possibility of accident occurrence and the extent of injury that exist in the process of coal mining is discerned and is analyzed.Method commonly used such as fuzzy overall evaluation, grey clustering analysis, Matter Analysis, BP artificial neural network etc., but on processing method, have some defective respectively, for example, lose a large amount of raw informations because of adopting maximum-minimal operator; Because of adopting all power to handle each degree of association, and fail enough to embody the influence of weight in each index.These all can cause the safety of coal mining condition influenced by many X factors.Present existing safety evaluation mechanism can not be guaranteed the surface collapse early warning in the process of coal mining, and the method for early warning and the system that therefore set up surface collapse in the effective progress of coal mining of a cover are a kind of effective technological means of coal enterprise's production safety operation.Set up the cover method for early warning that comparatively effectively the rock stratum, ground subsides in the process of coal mining, will help to improve the level of security of coal enterprise, the loss that the reduction accident is brought, and technological means is provided for the safe construction of coal enterprise.
For many years; People forecast earthquake, survey the coalfield karst collapse col umn, detect field such as latent address architecture and carried out big quantity research using radon survey; But because coal mining causes in the process that the rock stratum caves in; The radon gas field receives in influence and the ground subsidence process of the damaged development degree in stratum the Evaluation Mechanism to earth radon ANOMALOUS VARIATIONS in the earth; Particularly earth radon alpha energy spectrum measuring method combined high precision GPS differential technique is applied to the rock stratum early warning of subsiding and is not reported, therefore method provided by the present invention is a kind of technological means of innovation.
Summary of the invention
The purpose of the utility model is to the collapse application demand of early warning of stratum in the present progress of coal mining; Adopt radon gas alpha energy spectrum real-time continuous measuring method combined high precision ground GPS difference locating measurement method in the earth; The stratum preceding stratum cranny development situation that collapses in the monitoring progress of coal mining; The earth radon measurement experimental data of contrast cranny development experimental model; Set up a cover and utilize the earth radon to estimate the damaged development degree in crack unusually, the earth radon anomaly evaluation mechanism in the experimental model is applied in the ground subsidence evaluation in the progress of coal mining goes, thereby reach the early warning purpose of ground subsidence in the progress of coal mining.Method that the utility model provides is reasonable, and theoretical foundation is abundant, the technical scheme mature and feasible of realization.Through the utility model device, can conveniently be used for estimating the purpose of ground subsidence early warning in the coal mining process.
For reaching the foregoing invention purpose; The technical scheme that is adopted provides ground subsidence early warning system in a kind of progress of coal mining; It is characterized in that: comprise multi-parameter earth radon alpha energy spectrum measuring unit, high-precision GPS difference positioner, on-the-spot multi-measuring point data administrator, the electric power controller based on solar energy, ZigBee wireless network, GPRS wireless network, remote computer background monitoring system, multi-parameter earth radon alpha energy spectrum measuring unit links to each other with on-the-spot multi-measuring point data administrator through the ZigBee wireless network with high-precision GPS difference positioner; On-the-spot multi-measuring point data administrator links to each other with the remote computer background monitoring system through the GPRS wireless network; Multi-parameter earth radon alpha energy spectrum measuring unit, high-precision GPS difference positioner, on-the-spot multi-measuring point data administrator link to each other with electric power controller based on solar energy.
Ground subsidence early warning system in a kind of progress of coal mining that provides according to the utility model is characterized in that: described multi-parameter earth radon alpha energy spectrum measuring unit comprises in the earth radon survey module, ambient parameter measurement module in radon gas sampler, the earth; Wherein said ambient parameter comprises temperature in the earth, humidity and air pressure.
Ground subsidence early warning system in a kind of progress of coal mining that provides according to the utility model is characterized in that: described high-precision GPS difference positioner comprises GPS and measures antenna, GPS receiver and gps data collecting unit; High-precision GPS difference positioner is sent to on-the-spot multi-measuring point data administrator through the ZigBee wireless network with the GPS locator data of gathering; On-the-spot multi-measuring point data administrator is transferred to the computer background monitoring system through the GRPS network with the GPS locator data, carries out data by the computer background monitoring system.
Ground subsidence early warning system in a kind of progress of coal mining that provides according to the utility model; It is characterized in that: described on-the-spot multi-measuring point data administrator mainly comprises data processing unit, data storage cell, data transmission unit and man-machine interface unit, and the multi-measuring point data administrator mainly is responsible for the field control to earth radon measurement data and high-precision GPS difference location observation data.
Ground subsidence early warning system in a kind of progress of coal mining that provides according to the utility model; It is characterized in that: described electric power controller based on solar energy; Mainly comprise solar panel, power charging circuit, battery electric quantity testing circuit and battery protecting circuit, accomplish power management multi-parameter earth radon alpha energy spectrum measuring unit, the on-the-spot multi-measuring point data administrator of high-precision GPS difference positioner.
Description of drawings
Accompanying drawing 1 is a ground subsidence method for early warning flow chart in a kind of progress of coal mining;
Multi-parameter earth radon alpha energy spectrum measuring unit and high-precision GPS difference coordinate detection point that accompanying drawing 2 is implemented for the utility model are arranged sketch map;
Accompanying drawing 3 is the structural representation of multi-parameter earth radon data collecting unit;
Accompanying drawing 4 is that the ground subsidence early warning system constitutes sketch map in a kind of progress of coal mining;
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is carried out detailed description.
Fig. 1 is a ground subsidence method for early warning flow chart in a kind of progress of coal mining.As shown in the figure, the technical scheme that the ground subsidence early warning system is adopted in a kind of progress of coal mining that the utility model provides is: in surface soil, arrange sensing point (S101) according to the coal mining scope; Go up employing multi-parameter earth radon alpha energy spectrum measuring system at each sensing point (S201) and carry out earth radon real-time continuous measurement (S102); Set therein on the sensing point of quantity (S202) and make high-precision GPS difference location survey (S103); According to high-precision GPS difference location survey, obtain the sedimentation information on stratum; According to radon anomalies distribution relation and Changing Pattern in the earth that obtains; Experimental data contrast with crack, breadboard progress of coal mining stratum evaluation experimental model; The stratum settlement information that combined high precision GPS difference location obtains; Confirm the development degree in crack, stratum, and then obtain the early warning information (S104) of ground subsidence in the progress of coal mining.
In surface soil, arrange sensing point S101 according to the coal mining scope.Fig. 2 arranges sketch map for multi-parameter earth radon alpha energy spectrum measuring unit and high-precision GPS difference coordinate detection point that the utility model is implemented.As shown in the figure, according to the coal mining scope in the respective range of the face of land (such as 10000m
2) soil in be provided with measuring point (S201, S202) and survey line (S203), make investigative range can mulched ground under the coal mining district, the distance between selected survey line and the measuring point is a setting value.Arrange that in the surface exploration scope sensing point can be evenly to arrange also inhomogeneous layout.For example; In the surface exploration scope, survey line is set; Said line direction is consistent with the coal mining tunneling direction, and the distance between the survey line is a setting value, and this setting value can (as requiring monitoring accuracy be 2.5m according to the desired precision set of monitoring; Then the distance between the survey line is made as 5m); Can evenly arrange sensing point (distance between the measuring point also is to confirm setting value according to the requirement of monitoring accuracy, is 2.5m such as requiring monitoring accuracy, and then the distance between the survey line is made as 5m) on the every survey line or arrange sensing point (S201) unevenly.Measuring point on survey line and the survey line constitutes survey grid (Fig. 2), and survey grid has covered the ground location scope in coal mining district.Setting quantity sensing point on the selection survey grid selects a static point beyond the survey grid to locate static reference points (S204) as the GPS difference simultaneously as high-precision GPS difference location survey point (S202).
On each sensing point of coal mining district, carry out multi-parameter earth radon alpha energy spectrum real-time continuous on-line monitoring S102.Specifically be included in sensing point and dig the detection hole of set depth;, each places multi-parameter earth radon alpha energy spectrum measuring unit in surveying the hole; Multi-parameter earth radon alpha energy spectrum measuring unit data measured is sent to on-the-spot multi-measuring point data administrator through the ZigBee wireless network, send to the remote computer background monitoring system through the GPRS wireless network by on-the-spot multi-measuring point data administrator.The method of radon survey is a lot of in the existing earth, and the earth radon measurement method that the utility model adopts is that Fig. 3 is the structural representation of multi-parameter earth radon data collecting unit based on the alpha energy spectrum measuring technique of the static diffusion of earth radon buildup of static electricity principle.As shown in the figure; The radon gas sampler is made up of the high-pressure chamber that has diffusion hole, when radon gets into radon gas gathering-device cavity inside through static diffusion motion, the daughter that alpha-decay produces radon takes place; Because the daughter positively charged of radon; Can under the effect of high voltage electric field, be adsorbed onto gold silicon surface detector surface, the alpha ray that is adsorbed on the radon daughter decay generation on the gold silicon face outputs to Circuits System by the detection of gold silicon surface detector and with signal, carries out alpha energy spectrum by Circuits System and measures.Contain the measurement module of measuring temperature, humidity, air pressure in the earth in the Circuits System simultaneously, Circuits System is connected the employing epoxy resin embedding of entire circuit system through radon gas sampler in insulation materials and the earth.
Fig. 4 is that the ground subsidence early warning system constitutes sketch map in a kind of progress of coal mining.Whole early warning system is made up of multi-parameter earth radon alpha energy spectrum measuring unit, high-precision GPS difference positioner, on-the-spot multi-measuring point data administrator, the electric power controller based on solar energy, ZigBee wireless network, GPRS wireless network, remote computer background monitoring system several sections; Multi-parameter earth radon alpha energy spectrum measuring unit links to each other with on-the-spot multi-measuring point data administrator through the ZigBee wireless network with high-precision GPS difference positioner; On-the-spot multi-measuring point data administrator links to each other with the remote computer background monitoring system through the GPRS wireless network; Multi-parameter earth radon alpha energy spectrum measuring unit, high-precision GPS difference positioner, on-the-spot multi-measuring point data administrator are connected with electric power controller based on solar energy.Wherein said multi-parameter earth radon alpha energy spectrum measuring unit comprises in the earth radon survey module, ambient parameter measurement module in radon gas sampler, the earth.Wherein said ambient parameter comprises temperature in the earth, humidity and air pressure.
Set therein on the sensing point of quantity and make high-precision GPS difference location survey; Refer to observation surface settlement high-precision GPS difference location survey point is set on the earth radon measurement point of setting quantity simultaneously, on a static position, set a high-precision GPS difference location static reference points; Described high-precision GPS difference location survey point and high-precision GPS difference location static reference points comprise GPS and measure antenna, GPS receiver and gps data collecting unit; High-precision GPS difference location survey point and high-precision GPS difference location static reference points are sent to on-the-spot multi-measuring point data administrator through the ZigBee wireless network with the GPS locator data; On-the-spot multi-measuring point data administrator is transferred to the computer background monitoring system through the GRPS network with the GPS locator data, carries out data by the computer background monitoring system.
On-the-spot multi-measuring point data administrator mainly comprises data processing unit, data storage cell, data transmission unit and man-machine interface unit, and the multi-measuring point data administrator mainly is responsible for the field control to earth radon measurement data and high-precision GPS difference location observation data.
Electric power controller based on solar energy; Mainly comprise solar panel, power charging circuit, battery electric quantity testing circuit and battery protecting circuit, accomplish power management multi-parameter earth radon alpha energy spectrum measuring unit, the on-the-spot multi-measuring point data administrator of high-precision GPS difference positioner.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching, the protection domain that these do not need various improvement that creative work just can make and retouching should be regarded as the utility model yet.
Claims (5)
1. ground subsidence early warning system in the progress of coal mining; It is characterized in that: comprise multi-parameter earth radon alpha energy spectrum measuring unit, high-precision GPS difference positioner, on-the-spot multi-measuring point data administrator, the electric power controller based on solar energy, ZigBee wireless network, GPRS wireless network, remote computer background monitoring system, multi-parameter earth radon alpha energy spectrum measuring unit links to each other with on-the-spot multi-measuring point data administrator through the ZigBee wireless network with high-precision GPS difference positioner; On-the-spot multi-measuring point data administrator links to each other with the remote computer background monitoring system through the GPRS wireless network; Multi-parameter earth radon alpha energy spectrum measuring unit, high-precision GPS difference positioner, on-the-spot multi-measuring point data administrator link to each other with electric power controller based on solar energy.
2. ground subsidence early warning system in a kind of progress of coal mining according to claim 1 is characterized in that: described multi-parameter earth radon alpha energy spectrum measuring unit comprises in the earth radon survey module, ambient parameter measurement module in radon gas sampler, the earth; Wherein said ambient parameter comprises temperature in the earth, humidity and air pressure.
3. ground subsidence early warning system in a kind of progress of coal mining according to claim 1 is characterized in that: described high-precision GPS difference positioner comprises GPS and measures antenna, GPS receiver and gps data collecting unit; High-precision GPS difference positioner is sent to on-the-spot multi-measuring point data administrator through the ZigBee wireless network with the GPS locator data of gathering; On-the-spot multi-measuring point data administrator is transferred to the computer background monitoring system through the GRPS network with the GPS locator data, carries out data by the computer background monitoring system.
4. ground subsidence early warning system in a kind of progress of coal mining according to claim 1; It is characterized in that: described on-the-spot multi-measuring point data administrator mainly comprises data processing unit, data storage cell, data transmission unit and man-machine interface unit, and the multi-measuring point data administrator mainly is responsible for the field control to earth radon measurement data and high-precision GPS difference location observation data.
5. ground subsidence early warning system in a kind of progress of coal mining according to claim 1; It is characterized in that: described electric power controller based on solar energy; Mainly comprise solar panel, power charging circuit, battery electric quantity testing circuit and battery protecting circuit, accomplish power management multi-parameter earth radon alpha energy spectrum measuring unit, the on-the-spot multi-measuring point data administrator of high-precision GPS difference positioner.
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| CN 201220037297 CN202578785U (en) | 2012-02-06 | 2012-02-06 | Stratum subsidence pre-warning system in coal mining process |
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| CN 201220037297 CN202578785U (en) | 2012-02-06 | 2012-02-06 | Stratum subsidence pre-warning system in coal mining process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832163A (en) * | 2015-05-20 | 2015-08-12 | 辽宁工程技术大学 | Method for monitoring rock burst dangerousness in coal underground mining process |
| US10921465B2 (en) | 2014-07-11 | 2021-02-16 | Airthings As | Radon monitor |
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2012
- 2012-02-06 CN CN 201220037297 patent/CN202578785U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10921465B2 (en) | 2014-07-11 | 2021-02-16 | Airthings As | Radon monitor |
| CN104832163A (en) * | 2015-05-20 | 2015-08-12 | 辽宁工程技术大学 | Method for monitoring rock burst dangerousness in coal underground mining process |
| CN104832163B (en) * | 2015-05-20 | 2017-05-31 | 辽宁工程技术大学 | The dangerous monitoring method of bump in a kind of coal mine underground exploitation |
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Granted publication date: 20121205 Termination date: 20140206 |