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GB/T 25217.4-2019: Methods for test, monitoring and prevention of rock burst -- Part 4: Monitoring method of micro-seismicity
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| GB/T 25217.4-2019 | English | 199 |
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Methods for test, monitoring and prevention of rock burst -- Part 4: Monitoring method of micro-seismicity
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GB/T 25217.4-2019
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Basic data | Standard ID | GB/T 25217.4-2019 (GB/T25217.4-2019) | | Description (Translated English) | Methods for test, monitoring and prevention of rock burst -- Part 4: Monitoring method of micro-seismicity | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D20 | | Classification of International Standard | 73.010 | | Word Count Estimation | 10,169 | | Date of Issue | 2019-10-18 | | Date of Implementation | 2020-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25217.4-2019: Methods for test, monitoring and prevention of rock burst -- Part 4: Monitoring method of micro-seismicity
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Methods for test, monitoring and prevention of rock burst--Part 4. Monitoring method of microseismicity
ICS 73.010
D20
National Standards of People's Republic of China
Impact ground pressure measurement, monitoring and prevention methods
Part 4. Microseismic monitoring methods
Methodsfortest, monitoringandpreventionofrockburst-
Part 4. Monitoringmethodofmicroseismicity
Published on.2019-10-17
2020-05-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
GB/T 25217 "Method for measuring, monitoring and controlling impact ground pressure" is divided into 14 parts.
--- Part 1. Determination of impact tendency classification and index of roof rock formation;
--- Part 2. Determination of the impact tendency of coal and the method of determining the index;
--- Part 3. Determination of the impact tendency classification and index of coal and rock composite test pieces;
--- Part 4. Microseismic monitoring methods;
--- Part 5. Geophone monitoring methods;
---Part 6. Drill cuttings monitoring method;
---Part 7. Mining stress monitoring method;
--- Part 8. Electromagnetic radiation monitoring methods;
---Part 9. Coal seam water injection prevention methods;
--- Part 10. Coal seam drilling pressure relief method;
--- Part 11. Coal seam pressure relief blasting prevention methods;
--- Part 12. Prevention and control methods for mining protective layers;
--- Part 13. Prevention and treatment of roof deep hole blasting;
--- Part 14. Roof hydraulic pressure cracking prevention methods.
This part is the fourth part of GB/T 25217.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part is proposed and managed by the China Coal Industry Association.
This section drafted by. Coal Science and Technology Research Institute Co., Ltd., Shandong Energy Group Co., Ltd., China University of Mining and Technology, North China Science and Technology
College, Tiandi Technology Co., Ltd.
The main drafters of this section. Qi Qingxin, Yan Minghua, Kong Linghai, Cao Anye, Ouyang Zhenhua, He Hu, Gao Le, Pan Junfeng, Deng Zhigang,
Gongsiyuan.
Impact ground pressure measurement, monitoring and prevention methods
Part 4. Microseismic monitoring methods
1 Scope
This part of GB/T 25217 specifies the terms and definitions, equipment and technology involved in the monitoring method of mine ground pressure microseism
Parameters, microseismic monitoring system layout scheme, impact ground pressure hazard identification method.
This section applies to coal mine impact ground pressure microseismic monitoring.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Microseismicity
Coal (rock) body rupture phenomenon with vibration energy greater than 100J and frequency of 0.1Hz~150Hz around the roadway or working face.
2.2
Microseismic monitoring system microseismicmonitoringsystem
System for monitoring, recording, and analyzing microseisms, consisting of microseismic sensors, signal acquisition systems, data transmission systems, time synchronization systems, and numbers
According to the analysis system and other components.
2.3
Microseismic sensor microseismicsensor
A sensor that monitors the microseismic signal and converts the microseismic signal into an electrical signal.
Note. Rewrite GB/T 7665-2005, definition 3.1.1.
2.4
Microseismic energy microseismicenergy
The elastic wave energy of the microseismic source radiation.
2.5
Microseismic total energy totalmicroseismicenergy
The sum of the energy of the microseismic events per unit time.
2.6
Microseismic frequency microseismicnumber
The number of microseismic events occurring in a unit of time.
3 instruments and technical parameters
3.1 Basic requirements for the use of equipment
Equipment and equipment should meet the following requirements.
a) The configuration and technical parameters of the shock and pressure microseismic monitoring equipment shall meet the requirements of 4.2~4.4.
b) The microseismic monitoring system shall ensure 24 hours of uninterrupted operation. When the mine power grid is out of power, the backup power supply shall keep the system working normally.
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