基于均匀化方法的斜交节理岩体复合本构关系研究

Homogenization-based investigation on constitutive relationship of oblique joint rock

将斜交节理岩体作为一种广义复合材料,选取恰当的代表元,采用均匀化技术,建立复合等效本构关系,可预测斜交节理岩体的宏观力学性能。将岩体和节理按两种材料考虑,对地下开洞节理岩体结构进行有限元分析,并与采用复合本构关系的计算进行了比对,得到了令人满意的结果。

It was suggested to employ asymptotic expansion-based homogenization method to establish the equivalent homogenized model of oblique joint rock. Macroscopic equivalent constitutive parameters of the model were predicted and compared with those given by other equivalent models. The numerical simulation of displacement of an underground cave was presented to verify the model in comparison with the results obtained by Goodman joint element-based FE analysis, and good accordance could be observed.