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GB/T 25217.13-2019: Methods for test, monitoring and prevention of rock burst -- Part 13: Prevention method of deep-hole blasting in roof
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25217.13-2019 | English | 279 |
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Methods for test, monitoring and prevention of rock burst -- Part 13: Prevention method of deep-hole blasting in roof
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GB/T 25217.13-2019
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Basic data | Standard ID | GB/T 25217.13-2019 (GB/T25217.13-2019) | | Description (Translated English) | Methods for test, monitoring and prevention of rock burst -- Part 13: Prevention method of deep-hole blasting in roof | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D20 | | Classification of International Standard | 73.020 | | Word Count Estimation | 14,191 | | Date of Issue | 2019-08-30 | | Date of Implementation | 2020-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25217.13-2019: Methods for test, monitoring and prevention of rock burst -- Part 13: Prevention method of deep-hole blasting in roof
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for test, monitoring and prevention of rock burst - Part 13. Prevention method of deep-hole blasting in roof
ICS 73.020
D20
National Standards of People's Republic of China
Impact ground pressure measurement, monitoring and prevention methods
Part 13. Prevention and cure method of roof deep hole blasting
Methodsfortest, monitoringandpreventionofrockburst-
Part 13.Preventionmethodofdeep-holeblastinginroof
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 13th 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., Beijing Yuhua Energy Co., Ltd., China Coal Energy Group
Ltd., Liaoning University of Engineering and Technology, China University of Mining and Technology (Beijing).
The main drafters of this section. Deng Zhigang, Qi Qingxin, Ma Zhisheng, Chen Liwu, Zhao Shankun, Su Zhenguo, Han Jun, Wang Chunlai, Li Haitao,
Wang Aiwen.
Impact ground pressure measurement, monitoring and prevention methods
Part 13. Prevention and cure method of roof deep hole blasting
1 Scope
This part of GB/T 25217 specifies the terms and definitions, equipment, tools and materials for the prevention and control of deep hole blasting in impact roof.
Application of control methods and parameters, blasting process and safety requirements, and inspection of pressure relief treatment effects.
This section is applicable to the application of deep hole blasting in the roof of 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
Roof blasting roofblasting
Blasting in the roof to increase cracks in the roof rock mass, to destroy the integrity and continuity of the roof, and to release the elastic energy stored in the roof
operation.
3.2
Blasting hole blastinghole
Used for drilling holes in blasting operations.
3.3
Blast hole depth blastingholedepth
The linear distance from the blasthole opening position to the final hole position.
3.4
Roof deep hole blasting deep-holeblastinginroof
The blasting hole depth is greater than 10m.
3.5
Charging method
The arrangement of explosives, detonators, etc. in the blasthole.
3.6
Coupling coefficient coefficientofdecouplingcharge
The ratio of the diameter of the blasthole to the diameter of the charge.
[MT/T 1036-2007, definition 3.5]
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