GB/T 23561.13-2010 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 (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 23561.13-2010
Scope
This part of GB/T 23561 specifies the terms and definitions involved in the determination of coal and rock point load strength index, the determination of regular specimen point load strength index, the determination and data calculation of low strength irregular specimen point load strength index. This section applies to the determination of coal and rock point load strength index.
GB/T 23561.13-2010 Referenced Document
ASTM D5731-08 Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications*, 2024-04-19 Update
GB/T 50266-1999 Standard for tests method of engineering rock massas
GB/T 23561.13-2010 history
2010GB/T 23561.13-2010 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