GB/T 23561.12-2010

Abolished

Methods for determining the physical and mechanical properties of coal and rock - Part 12: Method for determining coal hardiness coefficient

煤和岩石物理力学性质测定方法 第12部分：煤的坚固性系数测定方法

Standard Type
GBT
ICS
73.010
CCS
D04
Status
Abolished
Issue Date
2010-09-26
Implementation
2011-02-01
Centralized Committee
中国煤炭工业协会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the laboratory testing procedure for determining the coal hardiness coefficient (f value), which is a key parameter for assessing coal’s resistance to crushing and fragmentation. It is applied in the mining industry, particularly for coal mine design, roadway support, and selection of mining machinery, as well as for evaluating rockburst risk and coal seam stability. The method is used by geological survey teams, mining engineers, and safety inspectors to classify coal seams for excavation planning and hazard prevention.

Related Standards

GB/T 20104-2006 Method for identifying tendency of coal to spontaneous combustion by oxygen absorption with chromatograph GB/T 23561.9-2009 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 GB/T 23561.8-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 8: Methods for determining the deformation parameters of coal and rock GB/T 23561.7-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 7: Methods for determining the uniaxial compressive strength and counting softening coefficient GB/T 23561.6-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 6: Methods for determining the moisture content of coal and rock GB/T 23561.5-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 5: Methods for determining the water absorbability of coal and rock GB/T 23561.4-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 4: Methods for calculating the porosity of coal and rock GB/T 23561.3-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 3: Methods for determining the block density of coal and rock
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.