Failure criteria for rock models under controlled triaxial stress conditions.

Stanley, L. O. (1968). Failure criteria for rock models under controlled triaxial stress conditions. Master's Thesis, School of Engineering, The University of Queensland.

       
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Author Stanley, L. O.
Thesis Title Failure criteria for rock models under controlled triaxial stress conditions.
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 1968
Thesis type Master's Thesis
Total pages 202
Language eng
Subjects 09 Engineering
Formatted abstract This report describes the design and use of an apparatus for testing models of uniform solid and of block-jointed rock, the main feature of the apparatus being that it allows the three principal stresses to be applied and controlled independently. The results of a series of triaxial compression tests are presented and analysed, and it is shown that the Mohr-Coulomb criterion does not apply for the rock models tested, but rather that a non-linear relationship exists between normal stress and shear stress on the fracture surface. The influence of the intermediate principal stress upon the strength attained by the models is examined, and it is found that while this influence is significant for the uniform solid samples, it is apparently negligible in the case of the jointed samples.
Keyword Rock mechanics.
Engineering models.
Strains and stresses.

 
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