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岩石试件在单轴匠缩条件下的应力-应变全过程曲线,在岩石力学研究与工程应用中有着重要意义。本文对“Ⅰ型”与“Ⅱ型”峰值后区曲线的形成条件进行了分析,并根据能量观点和最新的试验结果讨论了“Ⅱ型”曲线的不合理性,同时对峰值后区特性提出了新的见解。本文中的最新试验结果是在三位作者合作研制的自适应控制岩石力学试验机上作出的。
The stress-strain curve of rock specimens under uniaxial pressing conditions is of great significance in rock mechanics research and engineering application. In this paper, the formation conditions of the peak posterior region of “type I” and “type II” were analyzed, and the irrationality of the “type II” curve was discussed according to the energy viewpoint and the latest experimental results. At the same time, the characteristics of the peak posterior region New insights. The latest experimental results in this paper are made on an adaptive controlled rock mechanics testing machine jointly developed by three authors.