The Permeability-Strain Equations Relating to Complete Stress-strain Path of the Rock

Based on the latest test results the paper has verified that the coefficient of permeability or the pormeabili-ty of the rock is a function of the stress and strain under a complete stress-strain path,and the premeability-strainequations of the rock have been found.The equation can be applied to the numerical analysis of the coupled stresfield and the fluid flow field,and the calculated results agree well with those observed.