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GB/T 25217.3-2019: Methods for test, monitoring and prevention of rock burst -- Part 3: Classification and laboratory test method on bursting liability of coal-rock combinations sample
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Methods for test, monitoring and prevention of rock burst -- Part 3: Classification and laboratory test method on bursting liability of coal-rock combinations sample
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GB/T 25217.3-2019
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Basic data | Standard ID | GB/T 25217.3-2019 (GB/T25217.3-2019) | | Description (Translated English) | Methods for test, monitoring and prevention of rock burst -- Part 3: Classification and laboratory test method on bursting liability of coal-rock combinations sample | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D20 | | Classification of International Standard | 73.010 | | Word Count Estimation | 14,147 | | 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 25217.3-2019: Methods for test, monitoring and prevention of rock burst -- Part 3: Classification and laboratory test method on bursting liability of coal-rock combinations sample
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Methods for test, monitoring and prevention of rock burst--Part 3. Classification and laboratory test method on bursting responsibility of coal-rock combinations sample
ICS 73.010
D20
National Standards of People's Republic of China
Impact ground pressure measurement, monitoring and prevention methods
Part 3. Impact tendency of coal and rock composite test pieces
Classification and index determination method
Methodsfortest, monitoringandpreventionofrockburst-
Part 3. Classification andlaboratorytestmethodonbursting
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 third 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. Tiandi Technology Co., Ltd., Coal Science and Technology Research Institute Co., Ltd., Liaoning University of Engineering and Technology, Liaoning
University, Shandong University of Science and Technology, China University of Mining and Technology (Beijing).
The main drafters of this section. Pan Junfeng, Qi Qingxin, Yang Lei, Pan Yishan, Tan Yunliang, Zhao Yixin, Xia Yongxue, Liu Shaohong, Zhang Chenyang,
Jiang Junjun.
Impact ground pressure measurement, monitoring and prevention methods
Part 3. Impact tendency of coal and rock composite test pieces
Classification and index determination method
1 Scope
This part of GB/T 25217 specifies the terms and definitions of the impact tendency classification and index measurement of coal and rock composite test pieces.
Classification of impact tendency and index measurement of coal and rock composite test pieces, specification requirements of instrument equipment, combined test pieces and impact tendency of combined test pieces
determination.
This section applies to the determination of the impact tendency of coal and rock composite test pieces.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 23561.1-2009 Determination of physical and mechanical properties of coal and rock - Part 1
Methods of determination of physico-mechanical properties of coal and rock - Part 7. Determination of uniaxial compressive strength and softening systems
Number calculation method
GB/T 25217.2-2010 Methods of measurement, monitoring and control of impacts - Part 2. Classification and index of impact of coal
Measuring method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Coal and rock combination test piece coal-rockcombinationssample
Laboratory standard test piece formed by coal and rock combination.
3.2
Impact tendency of coal and rock composite test pieces burstingliabilityofcoal-rockcombinationssample
The coal-rock combination test piece has the property of accumulating deformation energy and generating instantaneous impact damage.
Note. Rewrite GB/T 16414-2008, definition 4.12.
3.3
Residual energy index residualenergyindex
WRE
The ratio of the peak elastic energy density to the post-peak failure energy density of the coal-rock composite specimen under uniaxial compression.
4 Classification and index of impact tendency of coal and rock composite specimens
The strength of the impact tendency of the coal-rock composite test piece is measured according to the measured residual energy index. Coal rock combination test piece impact tendency
Sex is classified into three categories according to the size of its index value, as shown in Table 1.
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