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论文类型：期刊论文
发表时间：2015-04-17
发表刊物：PLOS ONE
收录刊物：SCIE、PubMed、Scopus
卷号：10
期号：4
页面范围：e0121850
ISSN号：1932-6203
摘要：A new elasto-plastic constitutive model for jointed rock mass, which can consider the persistence ratio in different visual angle and anisotropic increase of plastic strain, is proposed. The proposed the yield strength criterion, which is anisotropic, is not only related to friction angle and cohesion of jointed rock masses at the visual angle but also related to the intersection angle between the visual angle and the directions of the principal stresses. Some numerical examples are given to analyze and verify the proposed constitutive model. The results show the proposed constitutive model has high precision to calculate displacement, stress and plastic strain and can be applied in engineering analysis.