Abstract
The characteristics of probability distributions and geometries on discontinuities such as fractures and faults in rock mass generally dominate mechanical and hydrogical features of geosphere. In this paper, the authors construtcted Discrete Fracture Network (DFN) models for a fractured rock mass based on the probability and statistical methods which were focused on relationships among obtainable fracture data from results from in-situ investigation. Additionally, the authors conducted a comparative study focusing on the fracture intensities which were obtained from DFN model based on the method and theoretical relationships among fracture data. The results of this comparative study shows that the fracture intensities and even their standard diviations from both methods have high-consistency.