GB/T 23561.7-2009

Active

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

煤和岩石物理力学性质测定方法 第7部分：单轴抗压强度测定及软化系数计算方法

Standard Type
GBT
ICS
73.010
CCS
D04
Status
Active
Issue Date
2009-04-08
Implementation
2009-12-01
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 test procedures for measuring the uniaxial compressive strength of coal and rock samples and the method for calculating the softening coefficient. It is applied in the mining industry, particularly for evaluating the mechanical stability of coal seams and surrounding rock under dry and water-saturated conditions. The results guide mine design, support selection, and safety assessments in underground coal mining operations.

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 23561.6-2009 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 GB/T 23561.2-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 2: Methods for determining the true density of coal and rock
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