Experimental Study on Volumetric Strain of Rocks in Full Stress-Strain Process

摘要

Based on the experimental results in the full stress-strain process of sandstone, mudstone, coal, marble by using the advanced experimental equipment .This paper studies the characteristics of volumetric strain in the full stress-strain process. The results give out some new knowledge and conclusions and are helpful to the study on rock mechanical properties, constitutive law and strength theory.