双场耦合条件下裂隙岩体的渗透张量

PERMEABILITY TENSOR FOR JOINTED ROCK MASSES IN COUPLED SEEPAGE AND STRESS FIELD

根据渗流能量迭加原理提出了确定裂隙岩体渗透张量的新模型。该模型采用多种变量描述岩体不连续面及其网络的地质特征，并考虑了渗流与变形的耦合效应。研究表明，新模型与其它模型相比更能全面地揭示裂隙岩体复杂的渗透特性，并适用于渗流场与应力场的耦合分析。

A new model determining the permeability tensor for jointed rock masses is proposed in this paper based on the superposition principle of liquid dissipation energy. Several parameters descrbing the geologic characteristics of discontinuities and their networks are adopted, and the coupling between fluid flow and deformation is considered in the model. Studies show that the new model can reveal the complicated permeability of jointed rock masses more comprehensively than the others, and can be applied to the coupling analysis of seepage and stress fields.