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GB/T 25217.14-2020: Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25217.14-2020 | English | 209 |
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Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing
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GB/T 25217.14-2020
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Basic data
| Standard ID | GB/T 25217.14-2020 (GB/T25217.14-2020) |
| Description (Translated English) | Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | D04 |
| Classification of International Standard | 73.010 |
| Word Count Estimation | 11,110 |
| Date of Issue | 2020-11-19 |
| Date of Implementation | 2021-06-01 |
| Regulation (derived from) | National Standard Announcement No. 26 of 2020 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 25217.14-2020: Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing
---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 14.Prevention method of roof hydraulic fracturing
ICS 73.010
D04
National Standards of People's Republic of China
Rockburst measurement, monitoring and prevention methods
Part 14.Prevention and Control Methods of Roof Hydraulic Fracturing
2020-11-19 released
2021-06-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
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 unloading blasting prevention methods;
---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 14 of GB/T 25217.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part is proposed and managed by China Coal Industry Association.
Drafting organizations of this section. China University of Mining and Technology, Coal Science and Technology Research Institute Co., Ltd., Yankuang Group Co., Ltd., Shenhua Xinjiang Energy
Limited liability company, Tiandi Technology Co., Ltd.
The main drafters of this section. Dou Linming, He Hu, Qi Qingxin, Wang Fuqi, Cao Anye, Chen Jianqiang, Zhao Shankun, Du Taotao, Cai Wu.
Rockburst measurement, monitoring and prevention methods
Part 14.Prevention and Control Methods of Roof Hydraulic Fracturing
1 Scope
This part of GB/T 25217 specifies the terms and definitions, instruments and equipment, and roof water
Fracturing conditions, direct hydraulic fracturing method, directional hydraulic fracturing method, effect inspection, safety requirements.
This part is applicable to the prevention and control method of hydraulic fracturing of rock burst roof.
2 Normative references
The following documents are essential 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 23561.10-2010 Determination of physical and mechanical properties of coal and rock Part 10.Determination of tensile strength of coal and rock
GB/T 25217.1-2010 Methods for the determination, monitoring and prevention of rock bursts. Part 1.Classification and classification of rock bursts
Index method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Roof hydraulic fracturing
Inject high-pressure liquid into the roof rock layer to create new or expand original cracks in the roof rock layer to control roof fracture and energy release
The anti-shock technology.
3.2
Direct hydraulic fracturing
Construct fracturing holes in the roof rock layer, and inject high-pressure liquid after sealing the holes to fracture the roof rock mass to achieve the prevention of roof fracture and energy release.
Chong technology.
3.3
Directional hydraulic fracturing
Artificially cut a directional pre-fracture in the roof rock layer, and then inject high-pressure liquid to crack the rock mass along the directional pre-fracture to achieve control
Anti-impact technology for roof fracture and energy release.
3.4
Directional pre-crack
The slit cut in the fracturing hole has a shape similar to that of a wedge.
3.5
Slotting tool
A drill tool capable of directional pre-slit cutting.
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