Valid

GB/T 25217.9-2020Methods for test, monitoring and prevention of rock burst—Part 9: Prevention method of water infusion on coal seam (English PDF)

冲击地压测定、监测与防治方法第9部分：煤层注水防治方法

Preview PDF

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 25217.9-2020 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

June 1, 2021

Scope

GB/T 25217.9-2020 is the English-translated version of 冲击地压测定、监测与防治方法第9部分：煤层注水防治方法.

GB/T 25217.9-2020 is the part of the Chinese series on the test, monitoring and prevention of rock burst that sets the prevention method of water infusion into the coal seam.

It gives the terms and definitions, the water injection parameters and the preparation of the equipment, the layout and construction of the water injection, and the method for inspecting its effect.

It applies to water injection into coal seams to prevent rock burst. Coal mines, mining engineers and mine safety authorities use it. Issued on 19 November 2020, it has applied since 1 June 2021.

Found what you need?

Document preview — GB/T 25217.9-2020

National Standard of the People's Republic of China

ICS: 73.040
Classification: D 20

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Water injection parameters and equipment
5 Water injection arrangement and construction method
6 Inspection method of coal seam water injection effect
Appendix A (Normative Appendix) Main technical parameters and application of steel wire braided high pressure hose for coal seam water injection

Foreword

GB/T 25217 "Measurement, Monitoring and Prevention of Rock Burst Pressure" is divided into 14 parts.

---Part 1: The method of measuring the impact tendency of roof rock formation and index;

---Part 2: Classification of impact tendency of coal and measurement method of index;

---Part 3: The method of measuring the impact tendency and index of coal-rock composite specimens;

---Part 4: Microseismic monitoring method;

---Part 5: Ground sound monitoring method;

---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: Prevention and treatment methods for coal seam borehole pressure relief;

---Part 11: Coal seam pressure relief blasting prevention method;

---Part 12: Prevention and control methods of mining protective layer;

---Part 13: Prevention methods of roof deep hole blasting;

---Part 14: Prevention and treatment methods of roof hydraulic fracturing.

This part is Part 9 of GB/T 25217.

This section was 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, water injection parameters and equipment preparation, water injection layout and construction method, and coal seam water injection effect inspection method involved in the method of coal seam water injection to prevent rock bursts.

This section is applicable to water injection in coal seams to prevent rock bursts.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document.

GB/T 482-2008 Method for taking coal samples from coal seams

MT/T 501-1996 Long borehole coal seam water injection method

MT/T 1023-2006 Coal seam water injection injectability identification method

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Coal seam water injection

Inject water in areas where the coal seam has impact risk, change the physical and mechanical properties such as the impact tendency of the coal seam, and reduce the impact risk method.

3.2 High pressure coal seam water injection

The use of high-pressure water injection pumps to inject water into the coal seams that are dangerous for mining, increase the seam cracks in the high-stress area, and release or transfer the coal Layer stress.

3.3 Hydrostatic coal seam water injection

Use the hydrostatic pressure in the water supply pipeline to inject water into the coal seam with impact risk, increase the water content of the coal body, reduce or release the coal body stress.

3.4 Original water content of coal seam

The ratio of the mass of water in the coal mass to the mass of the dry coal mass before water injection into the coal seam.

3.5 Water content after water injection

The ratio of the mass of water in the coal mass to the mass of the dry coal mass after water injection into the coal seam.

......
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

Normative references

MT/T 501-1996

Similar standards

GB/T 16658-2026|GB/T 15663.1-2025|GB/T 19560-2025|GB/T 24504-2025|GB/T 46288-2025|GB/T 46289-2025

How to Download GB/T 25217.9-2020

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.