A5026056479- Rock Mechanics and Modeling
- Structural Response to Dynamic Loads
- High-Velocity Impact and Material Behavior
- Landslides and related hazards
- Tunneling and Rock Mechanics
Guizhou Minzu University
2020
Guizhou University
2020
Abstract In order to study the influence of slit structure on blasting effect charge, super dynamic strain test system and photographic equipment were used response charge distribution cracks under different shapes angles. The results show that changing shape does not make energy-gathering damage-reducing cartridge disappear, but it will affect its effect. Compared with round hole slit, peak in direction strip blast is larger, directional crack forming more obvious, better. energy...
This study compared models of specimens with different filler media and decoupled charge structures in terms the blasting effect. The test system combined a high-speed camera static strain analyzer. A physical model concrete single-borehole structure was designed to geometric elements funnel, flyrock launch velocity, peak values, distribution gravel lumpiness. experimental results showed that for same decoupling coefficient, when expandable polystyrene foam (EPS) used as filling medium,...