CN115095389A - Rock burst monitoring and early warning system based on coal rock charge signals - Google Patents
Rock burst monitoring and early warning system based on coal rock charge signals Download PDFInfo
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- CN115095389A CN115095389A CN202210660745.5A CN202210660745A CN115095389A CN 115095389 A CN115095389 A CN 115095389A CN 202210660745 A CN202210660745 A CN 202210660745A CN 115095389 A CN115095389 A CN 115095389A
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- 239000011435 rock Substances 0.000 title claims abstract description 66
- 238000012544 monitoring process Methods 0.000 title claims abstract description 57
- 239000003245 coal Substances 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims description 8
- 238000005065 mining Methods 0.000 claims description 4
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- 238000004458 analytical method Methods 0.000 abstract description 4
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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Abstract
The invention discloses a rock burst monitoring and early warning system based on coal rock charge signals, which is used for intelligently monitoring and early warning the rock burst of a coal mine, and firstly determining a roadway needing important monitoring; then installing a data acquisition module, a data monitoring module and a data transmission module in the determined roadway area; and a data processing module, a data prediction module and a data early warning module are installed on the ground. And integrating the data acquisition module, the data monitoring module, the data transmission module, the data processing module, the data prediction module and the data early warning module into the rock burst monitoring and early warning system. At present, the method adopts multivariate automatic analysis to judge the danger level of rock burst, has the capability of automatic analysis without manual intervention, has wide application range, is suitable for the development of geological structure areas in deep mines or the preparation of the prediction of rock burst in main roadways, can accurately predict the rock burst and efficiently send out early warning information, takes pressure relief measures in advance, reduces safety accidents caused by mine dynamic disasters, and has great significance in improving the safety of stoping roadways.
Description
Technical Field
The invention belongs to the technical field of mine safety, and particularly relates to a rock burst monitoring and early warning system based on a coal rock charge signal.
Background
The rock burst refers to the mine dynamic phenomenon which is characterized by violent vibration and explosive damage caused by releasing a large amount of elastic energy when the coal rock mass is instantaneously destabilized and damaged by external disturbance, and is a dynamic disaster accident in the coal mining process. As the depth, strength, and conditions of coal mining increase, the production safety challenges are more acute and urgent.
Accurate prediction of rock burst is an important technical means for guaranteeing safe exploitation of deep coal resources. The coal rock destruction process is accompanied by physical information such as sound, light, heat, electromagnetism and the like, and based on different physical information of the coal rock destruction process, experts and scholars at home and abroad propose a plurality of methods such as acoustic emission, microseismic, electromagnetic radiation and the like for monitoring and early warning of coal mine rock burst. The methods play a positive role in predicting coal mine dynamic disasters under certain conditions, but the coal mine geological conditions are complex, environmental noise signals are difficult to remove, and the prediction accuracy is not high. In addition, the early warning is not intelligent enough. The electromagnetic radiation technology has become an important prediction method for coal rock dynamic disasters such as coal mine rock burst, coal and gas outburst and the like. The premise and the basis of the electromagnetic radiation of the coal rock are the separation of charges, but the separation of the charges does not necessarily have the electromagnetic radiation, which shows that the relationship between a charge signal and the deformation and the fracture of the coal rock is more direct.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rock burst monitoring and early warning system based on a coal rock charge signal. The method can automatically evaluate the disaster risk of the rock burst and can automatically perform early warning according to the monitoring result.
A rock burst monitoring and early warning system based on coal rock charge signals comprises a data acquisition module, a data monitoring module, a data transmission module, a data processing module, a data prediction module, an early warning module and the like. The data acquisition module consists of a plurality of coal rock charge sensors, and the data monitoring module consists of a plurality of monitoring extension sets. The output end of the coal rock charge sensor of the data acquisition module is connected with the monitoring extension of the data monitoring module: the monitoring charge data of the data monitoring module is transmitted to the data processing module through the data transmission module; the data processing module analyzes the data and transmits the data to the data prediction module; the data prediction module makes a judgment by combining the coal rock charge critical early warning indexes corresponding to the preset rock burst grade: and the early warning module sends early warning information to the mobile phone terminal according to the grade predicted by the data prediction module.
The invention has the advantages that:
the rock burst monitoring and early warning system based on the coal rock charge signals can predict the rock burst grade, can evaluate the danger relieving effect of prevention measures, achieves the aim of effectively preventing dynamic disasters of mines, and has great significance for reducing safety accidents caused by the dynamic disasters of the mines and improving the safety of stoping roadways.
And the risk level of the rock burst is judged by adopting multivariate automatic analysis, and the automatic analysis capability is realized without manual intervention. The early warning information can be sent out efficiently.
Drawings
Fig. 1 is an overall architecture diagram of a rock burst monitoring and early warning system based on a coal rock charge signal.
Fig. 2 is a schematic structural diagram of a rock burst monitoring and early warning system based on a coal rock charge signal.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Referring to fig. 1 and 2, the rock burst monitoring and early warning system based on the coal and rock charge signal specifically comprises a data acquisition module, a data monitoring module, a data transmission module, a data processing module, a data prediction module and a data early warning module, wherein the data acquisition module, the data monitoring module and the data transmission module are installed in a key monitoring area in the well and connected to the ground, and the data monitoring module is connected with a power supply module and the data early warning module and sends early warning information to a mobile phone.
Furthermore, the data acquisition module adopts a coal rock charge sensor YCD5-T probe, the downhole data transmission module adopts a fiber optic cable, the power supply module adopts a downhole 127V power supply for power supply, and the uphole data transmission adopts Ethernet for data transmission.
The method is implemented by the following steps:
step 2, installing a data acquisition module, a data monitoring module, a data transmission module and a power supply module in the roadway area determined in the step 1, and installing a data processing module, a data prediction module and a data early warning module on the ground;
and step 3, impact prediction is carried out through an impact ground pressure monitoring and early warning system.
Further, the specific content of step 1 includes: and determining the monitoring position of the roadway impact dangerous area according to the actual geological structure, the dynamic display characteristics, the danger degree and the like of the mine.
Further, the specific content of step 2 includes:
step 2.1, installing not less than 4 data acquisition module coal rock charge sensor YCD5-T probes near a monitoring area, wherein the distance between the probes is not more than 20m, the distance between the probes is not more than 10m between the left and the right of the area with obvious power display and high danger degree, the depth of each monitoring hole is not less than 2m, and the aperture is not less than 42 mm:
and 2.2, monitoring the charge change in the coal bed in the key area through a data acquisition module and a data monitoring module, sending the measurement data to a data processing module by adopting a data transmission module, analyzing the data by the data processing module and then transmitting the data to a data prediction module, judging by the data prediction module by combining with a coal rock charge critical early warning index corresponding to a preset rock burst level, and sending early warning information to a mobile phone terminal by the early warning module according to the level predicted by the data prediction module to complete the real-time monitoring of the charge change in the coal rock.
Further, step 3 specifically includes: and according to the early warning information, adopting corresponding different pressure relief measures, then comprehensively analyzing geological conditions, mining factors and the like of the area, determining the cause of rock burst, and adopting corresponding measures. Safety is ensured by the rock burst monitoring and early warning system.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are within the spirit of the invention and the scope of the claims.
Claims (6)
1. The rock burst monitoring and early warning system based on the coal rock charge signal is characterized by specifically comprising a data acquisition module, a data monitoring module and a data transmission module which are installed in an underground key monitoring area, wherein the data acquisition module, the data monitoring module and the data transmission module are connected to a data processing module, a data prediction module and a data early warning module which are installed on the ground, and the data monitoring module is connected with a power supply module and the data early warning module and sends early warning information to a mobile phone.
2. The system of claim 1, wherein the data acquisition module adopts a coal rock charge sensor YCD5-T probe, the downhole data transmission module adopts a fiber optic cable, the power supply module adopts a downhole 127V power supply for power supply, and the uphole data transmission adopts ethernet for data transmission.
3. A rock burst monitoring and early warning system based on a coal rock charge signal is characterized by being implemented according to the following steps:
step 1, determining a roadway needing important monitoring;
step 2, installing a data acquisition module, a data monitoring module, a data transmission module and a power supply module in the roadway area determined in the step 1, and installing a data processing module, a data prediction module and a data early warning module on the ground;
and step 3, impact prediction is carried out through an impact ground pressure monitoring and early warning system.
4. The system for monitoring and warning rock burst based on coal rock charge signals according to claim 3, wherein the concrete content of the step 1 comprises: and determining the monitoring position of the roadway impact dangerous area according to the actual geological structure, the dynamic display characteristics, the danger degree and the like of the mine.
5. The system for monitoring and early warning rock burst based on coal rock charge signals as claimed in claim 3, wherein the step 2 comprises:
step 2.1, installing not less than 4 data acquisition module coal rock charge sensor YCD5-T probes near a monitoring area, wherein the distance between the probes is not more than 20m, the distance between the probes is not more than 10m between the left and the right of the area with obvious power display and high risk degree, the depth of each monitoring hole is not less than 2m, and the aperture is not less than 42 mm;
and 2.2, monitoring the charge change in the coal bed in the key area through a data acquisition module and a data monitoring module, sending the measured data to a data processing module by adopting a data transmission module, analyzing the data by the data processing module and transmitting the data to a data prediction module, judging by the data prediction module by combining with a coal rock charge critical early warning index corresponding to a preset rock burst level, and sending early warning information to a mobile phone terminal by the early warning module according to the level predicted by the data prediction module to complete the real-time monitoring of the charge change in the coal rock.
6. The system for monitoring and early warning rock burst based on coal rock charge signals according to claim 3, wherein the step 3 specifically comprises: according to the early warning information, corresponding different pressure relief measures are taken, then geological conditions, mining factors and the like of the area are comprehensively analyzed, the cause of rock burst is determined, and safety is ensured through a rock burst monitoring and early warning system.
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| CN202210660745.5A CN115095389A (en) | 2022-05-06 | 2022-05-06 | Rock burst monitoring and early warning system based on coal rock charge signals |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220816A (en) * | 2023-04-17 | 2023-06-06 | 兖煤菏泽能化有限公司赵楼煤矿 | Colliery rock burst monitoring early warning device |
| CN118133131A (en) * | 2024-05-08 | 2024-06-04 | 煤炭科学研究总院有限公司 | Multi-scene general coal mine stope face impact presentation intelligent prediction method and system |
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- 2022-05-06 CN CN202210660745.5A patent/CN115095389A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220816A (en) * | 2023-04-17 | 2023-06-06 | 兖煤菏泽能化有限公司赵楼煤矿 | Colliery rock burst monitoring early warning device |
| CN116220816B (en) * | 2023-04-17 | 2023-08-15 | 兖煤菏泽能化有限公司赵楼煤矿 | Colliery rock burst monitoring early warning device |
| CN118133131A (en) * | 2024-05-08 | 2024-06-04 | 煤炭科学研究总院有限公司 | Multi-scene general coal mine stope face impact presentation intelligent prediction method and system |
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