GB/T 23561.9-2009Methods for determining the physical and mechanical properties of coal and rock - Part 9: Methods for determining the triaxial strength and deformation parameters of coal and rock (English PDF)
煤和岩石物理力学性质测定方法 第9部分：煤和岩石三轴强度及变形参数测定方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
April 8, 2009
Implementation date
December 1, 2009
Scope
GB/T 23561.9-2009 is the English-translated version of 煤和岩石物理力学性质测定方法 第9部分：煤和岩石三轴强度及变形参数测定方法.
GB/T 23561.9-2009 is the Chinese standard "Methods for determining the physical and mechanical properties of coal and rock - Part 9: Methods for determining the triaxial strength and deformation parameters of coal and rock".
Its scope clause reads: This section GB/T 23561 specifies the terms and definitions of coal and triaxial compressive strength and deformation parameters involved in the determination of the main Equipment, specimen size, test procedures and data calculation.
This section applies under laboratory conditions, it can be processed into standard test pieces of coal and rock in the axis of symmetry three-dimensional stress (sigma1 > sigma2 = sigma3) Article Under parts, measuring coal and rock specimen strength and deformation parameters. Its clauses include terms and definitions; main equipment.
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Document preview — GB/T 23561.9-2009
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
- 4 Main equipment
1 Scope
This section GB/T 23561 specifies the terms and definitions of coal and triaxial compressive strength and deformation parameters involved in the determination of the main
Equipment, specimen size, test procedures and data calculation.
This section applies under laboratory conditions, it can be processed into standard test pieces of coal and rock in the axis of symmetry three-dimensional stress (sigma1 > sigma2 = sigma3) Article
Under parts, measuring coal and rock specimen strength and deformation parameters.
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 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
GB/T 23561.8-2009 physical and mechanical properties of coal and rock measuring method - Part 8. Determination of coal and rock deformation parameters
3 Terms and Definitions
The following terms and definitions apply to this part of the GB/T 23561 of.
3.1
Process until the axial compressive stress is applied to the destruction of the specimen constant confining pressure (ie, sigma2 = sigma3) below.
3.2
Coal or rock specimens under constant confining pressure, reaching damage can withstand the maximum compressive stress.
4 Main equipment
4.1 Specimen Processing Machinery
Diamond machine, sawing machine, grindstone or grinding machines.
4.2 inspection tool
Test tools test samples were as follows.
a) vernier caliper, minimum scale value 0.02mm;
b) Universal angle gauge, dial indicator holder and dial indicator;
c) the level of detection units.
4.3 Device
4.3.1 Testing Machine
Material testing machine accuracy should not be less than one. Load range should satisfy the formula (1).
......
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 23561.10-2010 — Methods for determining the physical and mechanical properties of coal and rock - Part 10: Methods for determining tensile strength of coal and rock
GB/T 23561.8-2009 — Physical and mechanical properties of coal and rock measuring methods - Part 8: Determination of coal and rock deformation parameters
GB/T 23561.11-2024 — Methods for determining the physical and mechanical properties of coal and rock - Part 11: Methods for determining shear strength of coal and rock
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