Contact Friction Included in the Problem on Rock Failure under Compression
a:2:{s:4:"TEXT";s:30:"L. M. VASIL’EV, D. L. VASIL’EV";s:4:"TYPE";s:4:"text";}
a:2:{s:4:"TEXT";s:141:"Polyakov Institute of Geotechnical Mechanics, National Academy of Sciences of Ukraine, ul. Simferopol’skaya 2a, Dnepropetrovsk, 49005 Ukraine";s:4:"TYPE";s:4:"text";}
Keywords: rock, ultimate strength, failure, fracture, stress-strain curve
Abstract
The authors have developed the analytical method for estimating ultimate compression strength and plotting normal stress-axial strain curves using experimentally obtained indexes of rock properties-ultimate shearing strength and coefficients of internal and external friction. The values of the listed properties are readily found in mine experiments. The method is advantageous for simple and efficient acquisition of source data for stress-strain plots and estimation of ultimate strength of rocks immediately in mines.
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