作者: Quan-Sheng Liu , Jie Xu , Bin Liu , Jing-Dong Jiang
DOI: 10.1155/2015/167580
关键词:
摘要: Many sudden disasters (such as rock burst) by mining extraction originate in crack initiation and propagation. Meanwhile a large number of shock waves are produced deformation failure. With the purpose investigating coalescence failure mechanism rock, experimental research rock-like materials with two preexisting flaws was performed. Moreover, AE technique photographic monitoring were adopted to clarify further procedure It reveals that location can record moments occurrences follow growth until final Finally, influence different flaw geometries on strength is analyzed detail. This provides increased understanding fracture mining-induced disasters.