The Five Elastic Parameters for the Anisotropy of Slate under the Influence of Different Bedding Orientations


Liu Yun-si*1, Zhang Xiao2, Yin Quan1

1. School of Civil Engineering, Central South University, Changsha, Hunan 410075, China
2. Hunan Communications Research Institute, Changsha, Hunan 410075, China



According to electron microscopy experiments, it(s found out that slate has significant blasto-stratification structures and plate cleavages structure. Because of the impact of internal bedding structure on the slate, the apparent elastic modulus and Poisson's ratio of and  is increased from small to large, and  change faster than .The bedding angle has a slight influence on the elastic modulus and Poisson(s ratio perpendicular to the isotropic plane,and the former is slightly smaller than that of the isotropic plane.

Keywords: rock mechanics; slates; anisotropy; electron microscopy experiments; elastic parameters; strength

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