The common failure mechanism for brittle rocks is known to be axial splitting\nwhich happens parallel to the direction of maximum compression. One\nof the mechanisms proposed for modelling of axial splitting is the sliding\ncrack or so called, â??wing crackâ? model. Fairhurst-Cook model explains this\nspecific type of failure which starts by a pre-crack and finally breaks the rock\nby propagating 2-D cracks under uniaxial compression. In this paper, optimization\nof this model has been considered and the process has been done by\na complete sensitivity analysis on the main parameters of the model and excluding\nthe trends of their changes and also their limits and â??peak pointsâ?.\nLater on this paper, three artificial intelligence algorithms including Particle\nSwarm Intelligence (PSO), Ant Colony Optimization (ACO) and genetic algorithm\n(GA) has been used and compared in order to achieve optimized sets\nof parameters resulting in near-maximum or near-minimum amounts of\nwedging forces creating a wing crack.
Loading....