GB/T 23561.13-2010Methods for determining the physical and mechanical properties of coal and rock - Part 13: Methods for determining point load strength index of coal and rock (English PDF)
煤和岩石物理力学性质测定方法 第13部分：煤和岩石点载荷强度指数测定方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 26, 2010
Implementation date
February 1, 2011
Scope
GB/T 23561.13-2010 is the English-translated version of 煤和岩石物理力学性质测定方法 第13部分：煤和岩石点载荷强度指数测定方法.
GB/T 23561.13-2010 is the Chinese standard "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".
Its scope clause reads: 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. Its clauses include terms and definitions.
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Document preview — GB/T 23561.13-2010
National Standard of the People's Republic of China
- ICS
- 73.010
- Classification
- D 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 3.1 Point load strength index
- 4.1 Equipment
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
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.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 23561.14-2010 — Methods for determining the physical and mechanical properties of coal and rock - Part 14: Method for determining the swelling ratio of rock
GB/T 23561.12-2024 — Methods for determining the physical and mechanical properties of coal and rock - Part 12: Method for the determination of coal hardiness coefficients
GB/T 23561.15-2010 — Methods for determining the physical and mechanical properties of coal and rock - Part 15: Method for determining the swelling stress of rock
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