Novel Three-dimensional Rock Dynamic Tests Using the True Triaxial Electromagnetic Hopkinson Bar System

Excerpt

With increasingly more large rock structures built in regions where severe dynamic disturbance and complex tectonic stress present, the engineering disturbance induced dynamic disasters (e.g., rockburst, coal bump, landslide) are becoming more frequent and severe, resulting in huge casualties and property losses (Jiang et al. 2017; Linzer et al. 2007). This is mainly because rock engineering built in those regions not only bears triaxial static loads (e.g., crustal stress) but also is subjected to multi-axial dynamic disturbances such as blasting and earthquake. Therefore, understanding the dynamic response and behavior of rocks subjected to multi-axial dynamic and static loads is of great significance for the design, construction and operation of rock engineering. …