抄録
The method to quantitatively understand discontinuities in the rock mass is studied based on the stereological theory. Modelling these discontinuities, distributing with orientation and frequency in the rock mass, is primarily important in estimating the mechanical behavior of the discontinuous rock mass. In this paper, proposed method is applied to the in-situ geological survey at the underground cavern for the Akaishi hydroelectric power plant. The 3-dimensional distribution of discontinuities is modeled using the geological survey data. The results demonstrates that the density of distribution and orientation of discontinuities in the rock mass are successfully modeled by the method.