尺寸效应在岩体相似材料模型试验中的应用

Application of size effect in rock mass similar material model test

定义了相似材料模型试验中原型和模型的概念,更合理的解释了模型试验中的相似关系,并在原型岩体和模型体中,分别引入了尺寸效应理论,提出一套修正的模型材料参数确定方法.运用准岩体强度和相似材料尺寸效应理论,对工程中相似材料模型试验中的力学参数进行了修正,结果说明了所提出修正方法的合理性.

The concepts of prototype and model were well defined in a similar material model test. The similarity relationship in model test was rationalized. By inducing the size effect theory into the deter- mination of the mechanics parameters of prototype rock mass and model rock mass, a modified deter- mination method of parameters was proposed. Using the theories of the quasi strength of rock mass and the size effect of similar material, the mechanics parameters of an example were modified, and the modified method, which taking size effect into account, was proved to be reasonable.