Projects(51004025,51174044)supported by the National Natural Science Foundation of China;Project(2011AA060400)supported by the National High-tech Research and Development Program of China;Project(N120501003)supported by Ministry of Education of the People’s Republic of China;Project(LJQ2012024)supported by Department of Education of Liaoning Province,China
The development of fracture around pre-existing cylindrical cavities in brittle rocks was examined using physical models and acoustic emission technique. The experimental results indicate that when granite blocks cont...