岩石蠕变本构关系及改进的西原正夫模型

RHEOLOGIC CONSTITUTIVE RELATIONSHIP OF ROCKS AND A MODIFICAL MODEL

通过对岩石的全应力-应变曲线和蠕变曲线的分析,将粘滞性体模型中的粘滞系数修正为非线性,提出了一种组合模型:H-(H||N)-(M||St.V)(M为修正的牛顿体模型),能较好地反映岩石的非衰减蠕变特性。

The adhesion factors in adhesion model of rocks are changed with the non-linear relations through analyzing the mechanical experiment curves of rocks. Therefore, a new ahead model of rocks is proposed through the change: H-(H || N)-(M || St.V), where M is a modified model about the I. Newton's model. The model is of the feature of the non-linear accelerative creep of rocks.