THERMOMECHANICAL CONSOLIDATION COUPLING ANALYSIS ON JOINTED ROCK MASSBY THE FINITE-ELEMENT METHOD

Describes the thermo-mechanical consolidation coupling analysis and it s discretization method for the simulations of nuclear waste storage o n jointed rock mass using the finite element method. An anisotropic st ress-strain and permeable constitutive laws are employed for combining arbitrary oriented joint sets using compliance matrices. Evaluates th e influence of non-linear permeability of joint by cubic-law assuming parallel plate flow caused by excavation and the local change of perme ability around the excavated cavern in different joint angles. The res ults of the two-dimensional rock mass models with combining arbitrary oriented joint sets show that the fluid flow direction followed along the direction of the joint sets, and this seemed to be clearly explain ed from the influence of joint orientations.