Comparison of Triaxial Compression Short-Term Strength Tests and Data Processing Methods for Rock Salt

Abstract

The strength and deformation characteristics of rock salt are extremely important parameters for the design, construction and operation of underground energy storage and waste repository. Obtaining the correct strength parameters for rock salt is of great significance to the design and safe operation of an underground repository. In this study, samples of rock salt from the Jintan site of Jiangsu Province and Jianghan site of Hubei Province were chosen for triaxial compression tests, to detect their short-term strength and deformation parameters. Comparing the two different test and data processing methods employed in this study, it is revealed that for rock salt with a large deformation, the strength data obtained by the Chinese test measurement is generally higher than the German test measurement. Thus it can be concluded that the German strength test and data processing method is more accurate.