1 International Journal of Rock Mechanics and Mining Sciences Analysis of geo-structural defects in flexural toppling failure Abbas Majdi and Mehdi Amini Abstract The in-situ rock structural weaknesses, referred to herein as geo-structural defects, such as naturally induced micro-cracks, are extremely responsive to tensile stresses. Flexural toppling failure occurs by tensile stress caused
Substation system over-voltage protection technology Second substation equipment over-voltage protection on electronic information system for the protection of core equipment for the construction of a protected both pressure and other potential system, and through all levels of over-voltage surge protectors of the current step by step into the land of China, Substation secondary safety equipm