关键词: 岩爆, 复合能量, 动力响应, 裂纹扩展, 流变

Abstract: Rockburst occurs due to many complex factors. It is extremely difficult to find its essential peculiarity based on in-situ phenomena. The paper, based on the analysis of various rockburst energy mechanisms, proposes a rockburst mechanism based on compound energy, which indicates that the energy superposition after a rapid rupture of rock mass causes the dynamic fracture of engineering wall rock. The process from quasi static to dynamic coal rock motion involving crack initiation, extension and running-through is analyzed with the criteria of energy involved in the rapid crack initiation of rock mass. The theoretical basis for the application of the crack arresting technology based on compound energy conditions in rockburst control is described from the rock mass  characters of unloading and rheology.

Key words: Rockburst, Compound energy, Dynamic response, Crack expansion, Rheology