The parameters sensibility analysis of mining-induced fracture network reconstructed on the fractal characteristics

Based on the reconstruction technology of discrete fracture network and the reconstruction platform of RJNS^3D, the sensibility of the reconstruction parameters for fracture network was discussed. The results show that the reconstruction times have a slight influence on fractal dimension, which can be neglected; the fracture type and volumetric density have a certain sensitivity effect on the fractal dimension, the fractal dimension decreases with the increase of the fracture axial ratio, while it increases with the increase of fracture density; the attitude of the measuring window has a certain sensitivity effect on the fractal dimension as well, the fractal dimension increases with the increase of the angle between measuring window and the average fracture attitude; the fractal dimensions differ under different measuring window sizes, the volumetric fractal dimension obviously increase with the increase of the core box size.