岩石尺寸效应研究现状

岩石材料存在尺寸效应,固定尺寸的岩石试样的力学参数并不能直接应用于工程设计和相关研究中。阅读大量文献并以其为参考,对现有的岩石尺寸效应研究现状进行总结,具体包括岩石的强度特性和变形特性试验研究现状,岩石尺寸效应数值模拟研究中2种较为常用的数值模拟方法,以及尺寸效应现象产生机理的解释。最后结合所学对岩石的尺寸效应研究提出一些思考和展望。

There is a size effect in rock materials,and the mechanical parameters of fixed-size rock samples can not be directly applied to engineering design and related research.Reading a large number of literatures and taking it as a reference,this paper summarizes the existing research status of rock size effect,including the experimental research status of strength and deformation characteristics of rock,two commonly used numerical simulation methods in the numerical simulation of rock size effect,and the explanation of the mechanism of size effect phenomenon.Finally,combined with the study of the size effect of rock,some thoughts and prospects are put forward.