Principle of analysis of brittle-plastic rock mass |
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| Institution: | 1. Department of Hydroelectric Engineering, College of Civil & Hydroelectric Engineering, China Three Gorges University, College Road 8, Yi Chang 443002, China;2. Department of Civil Engineering, The University of Hong Kong, Hong Kong;3. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;1. Univ. Grenoble Alpes/CNRS, UMR 5521 3SR, Grenoble, France;2. Université de Lorraine/CNRS/CREGU, GeoResources Lab, Vandoeuvre–lès–Nancy, France;3. CSIRO Energy Flagship, Pullenvale, QLD, Australia;4. IMSRN, Montbonnot, France;1. DICEA – University of Padua, via Ognissanti 39, 35129 Padua, Italy;2. DICA – Politecnico di Milano, Pz. L. da Vinci 32, 20133 Milano, Italy;1. Former PhD Candidate, The University of Newcastle, Callaghan, NSW 2308, Australia;2. School of Civil, Environmental & Mining Engineering, University of Adelaide, Adelaide, SA 5005, Australia;3. School of Engineering, RMIT University, Melbourne, VIC 3000, Australia;1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, 430071 Wuhan, PR China;2. Research Center of Geotechnical and Structural Engineering, Shandong University, 250061 Jinan, PR China |
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| Abstract: | Based upon Il’yushin’s postulate and the plastic potential theory, a procedure for calculating the abrupt change in stresses from the peak strength surface to the residual strength surface is proposed. The stability criterion for a brittle-plastic body loaded proportionally is presented. Finally, three examples have been solved analytically and numerically, including an engineering example of the steep rock slope of a shiplock system for the Three Gorges hydroelectric power project in China. |
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