GB/T 23561.13-2010 English PDF

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GB/T 23561.13-2010: Methods for determining the physical and mechanical properties of coal and rock -- Part 13: Methods for determining point load strength index of coal and rock
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23561.13-2010	209	Add to Cart	3 days	Methods for determining the physical and mechanical properties of coal and rock -- Part 13: Methods for determining point load strength index of coal and rock	Valid

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GB/T 2007.6   GB/T 2007.7   GB/T 23561.12   GB/T 23561.8   GB/T 23561.11   

Basic data

Standard ID: GB/T 23561.13-2010 (GB/T23561.13-2010)
Description (Translated English): Methods for determining the physical and mechanical properties of coal and rock -- Part 13: Methods for determining point load strength index of coal and rock
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D04
Classification of International Standard: 73-010
Word Count Estimation: 9,916
Date of Issue: 2010-09-26
Date of Implementation: 2011-02-01
Quoted Standard: GB/T 50266-1999; ASTM D5731-2008
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 terms and definitions of coal and rock point load strength index determination involved, rules specimen point load strength index determination, low intensity irregular point load strength index of the specimen was measured and calculated data. This section applies to the determination of coal and rock point load strength index is calculated on.

GB/T 23561.13-2010: Methods for determining the physical and mechanical properties of coal and rock -- Part 13: Methods for determining point load strength index of coal and rock

---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 determining the physical and mechanical properties of coal and rock Part 13. Methods for determining point load strength index of coal and rock ICS 73-010 D04 National Standards of People's Republic of China Physical and mechanical properties of coal and rock Determination Part 13. coal and rock point load strength INDEX OF Part 13. Methodsfordeterminingpointload 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 23561 "Determination of physical and mechanical properties of coal and rock" press release section is divided into 16 parts. --- Part 1. Sampling general provisions; --- Part 2. Determination of true density of coal and rock method; --- Part 3. coal and rock bulk density determination; --- Part 4. coal and rock porosity calculation method; --- Part 5. Determination of water absorption of coal and rock; --- Part 6. Methods for determination of moisture content of coal and rock; --- Part 7. Determination of uniaxial compressive strength and softening coefficient calculation method; --- Part 8. coal and rock deformation parameter determination method; --- Part 9. Coal and triaxial strength and deformation parameters determination method; --- Part 10. Determination of tensile strength of coal and rock; --- Part 11. coal and rock shear strength measurement method; --- Part 12. Coal consistent coefficient of determination; --- Part 13. coal and rock point load strength index measuring method; --- Part 14. Determination of swelling rock; --- Part 15. Determination of rock swelling stress; --- Part 16. Determination of rock resistant to disintegration index method. This part of GB /Part of 13 T 23561. This section of Appendix A normative appendix. 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, Zhang Xueliang. Physical and mechanical properties of coal and rock Determination Part 13. coal and rock point load strength INDEX OF

1 Scope

This section GB/T 23561 specifies the terms and definitions of coal and rock point load strength index determination involved, the rules contained in the specimen point Load strength index determination, low-intensity irregular specimen point load strength index was measured and calculated data. This section applies to the determination of coal and rock point load strength index.

2 Normative references

The following documents contain provisions which, through reference GB/T 23561 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 50266-1999 Standard Test Method of Engineering Rock Standard Test Method for Rock Point load strength index and determination of rock strength classification ASTMD5731-2008

3 Terms and Definitions

The following terms and definitions apply to this part of the GB/T 23561 of. 3.1 Point load strength index pointloadstrengthindex In point of loading coal and rock strength index. NOTE. See point load strength index calculation formula (1). Rule 4 specimen point load strength index determination 4.1 Equipment The main equipment are. a) point load tester, shown in Figure 1, or the material testing machine and loaded cone, shown in Figure 2; b) sawing machine, diamond machine; c) vernier caliper, minimum scale value 0.02mm. ......

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