Abstract
Recently, several static rock fracturing (non-blasting) methods have been developed because of the increase of rock excavations near residential area. However, these methods lack methodology for fracturing design; how to design line of least resistance and spacing of fracturing holes according to the capacity of the fracturing system.
In this paper, stress intensity factor (KI) of a fracture produced by our Aqua-sputter was calculated using a two-dimensional boudary element method.
The results showed that the most appropriate layout of boreholes can be determined from the minimum stress intensity factor of the fracture if fracture toughness of rock mass is known.
