标准号:IS 9221-1979
发布日期:1979/11/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard covers the method for determination of Young's modulus of elasticity and Poisson's ratio of cylindrical rock specimens in compression.1.2 This standard does not cover (a) the procedure necessary to obtain stress strain curve beyond the ultimate strength, and (b) the method for determining rock moduli in tension.