Strength of Anisotropic Rocks under Axial Compression and Lateral Pressure
A. M. KOVRIZHNYKH, O. M. USOL’TSEVA, S. A. KOVRIZHNYKH, P. A. TSOI, V. N. SEMENOV
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: анизотропия, слоистость, трещиноватость, предел прочности, разрушение горных пород, anisotropy, bedding, jointing, ultimate strength, rock failure
Abstract
The article describes the theoretical and experimental research into the strength of cylindrical specimens made of layered and anisotropic geomaterials exposed to axial compression and lateral pressure. The tests used INSTRON 8802 versatile servohydraulic fatigue testing system. The experimental results are the relationships between the ultimate strength and bedding angle in specimens of an artificial material, meta-siltstone and shale. The experimental data agree well with the theoretical calculations.
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