GB/T 25217.11-2019 PDF English
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Methods for test, monitoring and prevention of rock burst -- Part 11: Prevention method of destress blasting in coal seam
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GB/T 25217.11-2019: Methods for test, monitoring and prevention of rock burst -- Part 11: Prevention method of destress blasting in coal seam
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT25217.11-2019
Methods for test, monitoring and prevention of rock burst - Part 11. Prevention method of destress blasting in coal seam
ICS 73.040
D20
National Standards of People's Republic of China
Impact ground pressure measurement, monitoring and prevention methods
Part 11. Coal seam pressure relief blasting prevention method
Methodsfortest, monitoringandpreventionofrockburst-
Part 11.Preventionmethodofdestressblastingincoalseam
Published on.2019-08-30
2020-03-01 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 11th 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. Liaoning University of Engineering and Technology, Coal Science and Technology Research Institute Co., Ltd., Datong Coal Mining Group Co., Ltd.,
Shenhua Xinjiang Energy Co., Ltd., North China Institute of Science and Technology, China Coal Energy Group Co., Ltd., Liaoning University.
The main drafters of this section. Zhang Hongwei, Qi Qingxin, Yu Bin, Han Jun, Pan Yishan, Chen Jianqiang, Ouyang Zhenhua, Li Sheng, Wang Lijing, Zhao Shankun.
Impact ground pressure measurement, monitoring and prevention methods
Part 11. Coal seam pressure relief blasting prevention method
1 Scope
This part of GB/T 25217 specifies the terms and definitions, equipment and tools involved in the method of preventing and controlling blasting of coal seams.
With materials, blasting parameters and safety requirements.
This section applies to the blasting pressure relief in the coal seam to prevent impact ground pressure.
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 6722 blasting safety regulations
GB/T 16414 Coal Mine Science and Technology Terms Rock Mechanics
3 Terms and definitions
The following terms and definitions as defined in GB 6722 and GB/T 16414 apply to this document.
3.1
Coal seam pressure relief blasting destressblastingincoalseam
A method of preventing and controlling the impact of ground pressure to reduce the impact risk by blasting the dangerous area of the coal seam impact.
3.2
Loose blasting damagedblasting
Pressure relief blasting performed in areas where impact risk is assessed.
3.3
Explosion blasting reliefblasting
Pressure relief blasting performed in the impact hazard area identified by monitoring and analysis.
4 Equipment, tools and materials
4.1 Drilling equipment
Drills and matching drill bits and drill pipes with corresponding construction capabilities.
4.2 Medicine roll fixation
Bundle the medicine roll with a non-metallic material.
4.3 Charger
Guns made of wood, bamboo or hard insulators.
GB/T 25217.11-2019
Methods for test, monitoring and prevention of rock burst - Part 11. Prevention method of destress blasting in coal seam
ICS 73.040
D20
National Standards of People's Republic of China
Impact ground pressure measurement, monitoring and prevention methods
Part 11. Coal seam pressure relief blasting prevention method
Methodsfortest, monitoringandpreventionofrockburst-
Part 11.Preventionmethodofdestressblastingincoalseam
Published on.2019-08-30
2020-03-01 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 11th 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. Liaoning University of Engineering and Technology, Coal Science and Technology Research Institute Co., Ltd., Datong Coal Mining Group Co., Ltd.,
Shenhua Xinjiang Energy Co., Ltd., North China Institute of Science and Technology, China Coal Energy Group Co., Ltd., Liaoning University.
The main drafters of this section. Zhang Hongwei, Qi Qingxin, Yu Bin, Han Jun, Pan Yishan, Chen Jianqiang, Ouyang Zhenhua, Li Sheng, Wang Lijing, Zhao Shankun.
Impact ground pressure measurement, monitoring and prevention methods
Part 11. Coal seam pressure relief blasting prevention method
1 Scope
This part of GB/T 25217 specifies the terms and definitions, equipment and tools involved in the method of preventing and controlling blasting of coal seams.
With materials, blasting parameters and safety requirements.
This section applies to the blasting pressure relief in the coal seam to prevent impact ground pressure.
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 6722 blasting safety regulations
GB/T 16414 Coal Mine Science and Technology Terms Rock Mechanics
3 Terms and definitions
The following terms and definitions as defined in GB 6722 and GB/T 16414 apply to this document.
3.1
Coal seam pressure relief blasting destressblastingincoalseam
A method of preventing and controlling the impact of ground pressure to reduce the impact risk by blasting the dangerous area of the coal seam impact.
3.2
Loose blasting damagedblasting
Pressure relief blasting performed in areas where impact risk is assessed.
3.3
Explosion blasting reliefblasting
Pressure relief blasting performed in the impact hazard area identified by monitoring and analysis.
4 Equipment, tools and materials
4.1 Drilling equipment
Drills and matching drill bits and drill pipes with corresponding construction capabilities.
4.2 Medicine roll fixation
Bundle the medicine roll with a non-metallic material.
4.3 Charger
Guns made of wood, bamboo or hard insulators.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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