| Abstract: | ![]()
Based on the mechanism study of new well stimulation method—tailored pulse loading method, the effects of initial stresses in this method is further studied. The effects of initial stresses on the propagation velocities and directions of the cracks around a hole, especially on the energy dissipation in crack extension, are obtained through theoretical analysis, dynamic photo elasticity tests, high speed photography. And large coal specimen tests. These results provide a theoretical foundation for the practical applications of the tailored pulse loading method. |
