Construction method for rock freeze-thaw damage constitutive model under action of constant confining pressure
A technology of constitutive model and construction method, applied in the field of rock damage constitutive model, which can solve the problems of not involving temperature effect, freeze-thaw cycle effect, not considering the effect of confining pressure, and less research on damage mechanical properties.
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[0050] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.
[0051] The failure of rock mass structure is often caused by the interaction of various physical, mechanical and environmental reasons and other influencing factors. For the study of rock mass stability in cold regions, the influence of factors such as freeze-thaw cycle and load action should be considered first. Such as figure 1 As shown in the flow chart of the steps of the invention, the embodiment of the invention provides a method for constructing a constitutive model of rock freeze-thaw damage under constant confining pressure, which considers the joint action of two damage factors, freeze-thaw cycle and load. The method of the invention is a combination of theoretical derivation and experimental verification. The ...
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