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 (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 23561.7-2009
Scope
This part of GB/T 23561 specifies the terms and definitions involved in the determination of coal and rock uniaxial compressive strength and the calculation of softening coefficient, instruments and equipment, specimen specifications, test procedures and data calculation. This part applies to the determination of the uniaxial compressive strength and the calculation of the softening coefficient of the coal that can be processed into standard test pieces and the rocks in the rocks related to the coal seam under laboratory conditions.
GB/T 23561.7-2009 Referenced Document
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 23561.7-2009 history
2009GB/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