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GB/T 25217.2-2010 English PDF

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GB/T 25217.2-2010: Methods for test, monitoring and prevention of rock burst -- Part 2: Classification and laboratory test method on bursting liability of coal
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PDF similar to GB/T 25217.2-2010


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Basic data

Standard ID GB/T 25217.2-2010 (GB/T25217.2-2010)
Description (Translated English) Methods for test, monitoring and prevention of rock burst -- Part 2: Classification and laboratory test method on bursting liability of coal
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D04
Classification of International Standard 73-010
Word Count Estimation 20,286
Date of Issue 2010-09-26
Date of Implementation 2011-02-01
Quoted Standard GB/T 16414-2008; GB/T 23561.1-2009; GB/T 23561.7-2009
Regulation (derived from) National Standard Approval Announcement 2010 No.6 (Total No.161)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the tendency of coal classification and index measuring impact-Terminology and definitions, BURSTING coal classification and index, equipment, specimens specifications, uniaxial compressive strength determination, dynamic failure time measurement, elastic energy index determination and impact energy index determination. This section applies to the determination of the impact of coal tendency classification and under laboratory conditions, the standard test pieces can be processed coal BURSTING index.

GB/T 25217.2-2010: Methods for test, monitoring and prevention of rock burst -- Part 2: Classification and laboratory test method on bursting liability of coal


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Methods for test, monitoring and prevention of rock burst Part 2. Classification and laboratory test method on bursting liability of coal ICS 73-010 D04 National Standards of People's Republic of China ROCKBRUST measurement, monitoring and control methods Part 2. Classification and coal impact tendency Determination Index Methodsfortest, monitoringandpreventionofrockburst- Part 2. Classificationandlaboratorytestmethodonburstingliabilityofcoal Issued on. 2010-09-26 2011-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 25217 "burst pressure measurement, monitoring and control methods" as part of the release, to be divided into 14 parts. --- Part 1. roof strata classification and determination of the impact orientation index; --- Part 2. Classification of coal impact tendency and determination of the index; --- Part 3. Impact of coal composition specimen orientation classification and determination of the index; --- Part 4. Shock Hazard microseismic monitoring methods; --- Part 5. Impact dangerously sound monitoring methods; --- Part 6. Impact of electromagnetic radiation risk monitoring methods; --- Part 7. Shock Hazard cuttings method monitoring methods; --- Part 8. Shock Hazard mining pressure monitoring method; --- Part 9. rockburst injection control methods; --- Part 10. rockburst drilling relief control methods; --- Part 11. rockburst uninstall blasting control methods; --- Part 12. mining rock burst protective layer control methods; --- Part 13. Deep Hole Blasting rock burst fracture roof control methods; --- Part 14. Directional roof rock burst prevention method of hydraulic fracturing. This section is GB/T Part of 225,217. This section Appendix B, Appendix C, Appendix E, Appendix F are normative appendices, Appendix A, Appendix D is an informative annex. This section is proposed and managed by the China Coal Industry Association. This section is drafted. Coal Mining Research Institute Research Branch Design and Research Institute of Coal Research Branch detection. The main drafters of this section. Qi Qingxin, Li Jiqing, Maode Bing, Fu Jingyu, Pengyong Wei, Ren Yong, blue voyage. ROCKBRUST measurement, monitoring and control methods Part 2. Classification and coal impact tendency Determination Index

1 Scope

This section GB/T 25217 specifies the terms and definitions and classification index measuring the impact orientation of coal involved, the impact of dumping coal Classification and index anisotropy, equipment, specimen size, measured uniaxial compressive strength, dynamic failure time measurement, elastic energy index determination and punches Impact energy index determination. The impact of coal This section applies to coal impact tendency classification and under laboratory conditions, it can be processed on standard test piece of bias means Determination of the number.

2 Normative references

The following documents contain provisions which, through reference GB/T 25217 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 16414-2008 Mine scientific terms mechanics GB/T 23561.1-2009 physical and mechanical properties of coal and rock measuring method - Part 1. General requirements Sampling GB/T 23561.7-2009 physical and mechanical properties of coal and rock measuring methods - Part 7. Determination of uniaxial compressive strength and softening system Calculation method

3 Terms and Definitions

The following terms and definitions apply to this part of the GB/T 25217 of. 3.1 Coal impact tendency burstingliabilityofcoal The accumulation of deformation energy and coal have generated nature of impact damage. Note 1. Overrides GB/T 16414-2008, definitions 4.12. 3.2 Dynamic failure time durationofdynamicfracture DT Coal specimen in uniaxial compression state, from the ultimate strength to completely destroy the elapsed time. [GB/T 16414-2008, the definition 4.9] 3.3 Elastic energy index elasticstrainenergyindex WET Coal specimens under uniaxial compression state, when the force reaches a certain value (before failure) unloading the elastic deformation energy of plastic deformation (loss Energy) ratio distortion. [GB/T 16414-2008, the definition 4.11]

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