GB/T 25217.13-2019Methods for test, monitoring and prevention of rock burst—Part13: Prevention method of deep-hole blasting in roof (English PDF)
冲击地压测定、监测与防治方法 第13部分：顶板深孔爆破防治方法
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 25217.13-2019 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 30, 2019
Implementation date
March 1, 2020
Scope
GB/T 25217.13-2019 is the English-translated version of 冲击地压测定、监测与防治方法 第13部分：顶板深孔爆破防治方法.
GB/T 25217.13-2019 is the Chinese national method for using deep-hole blasting in a coal seam roof to prevent rock burst.
It sets out the terms and definitions, the equipment, tools and materials the work needs, how the prevention method is applied and how its parameters are chosen, the blasting procedure and its safety requirements, and how the effect of the pressure relief treatment is checked.
It defines roof blasting, the blasting hole and its depth, roof deep-hole blasting - a blast hole deeper than 10 m - the charging method and the coupling coefficient of the charge.
It cites GB 6722 on blasting safety and GB/T 16414 on coal mine rock mechanics terminology. Part 13 of GB/T 25217, it was issued on 30 August 2019 and has applied since 1 March 2020.
Found what you need?
Document preview — GB/T 25217.13-2019
National Standard of the People's Republic of China
- ICS
- 73.020
- Classification
- D 20
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
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.
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 document. 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
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
Used for drilling holes in blasting operations.
3.3 Blast hole depth
The linear distance from the blasthole opening position to the final hole position.
3.4 Roof deep hole blasting
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
The ratio of the diameter of the blasthole to the diameter of the charge. [MT/T 1036-2007, definition 3.5]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
How to Download GB/T 25217.13-2019
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB 6722-2014 — Safety regulations for blasting
GB/T 16414-2008 — Terms relating to coal mining - Rock mechanics
GB/T 25217.1-2010 — Methods for test, monitoring and prevention of rock burst - Part 1: Classification and laboratory test method on bursting liability of roof strata
Secure payment via Stripe
Payments accepted
GB/T 25217.13-2019
$205.00