In mining engineering very important phenomenon exists, which is an aftermath of accumulation of energy at the face of excavated wall. After exceeding some threshold the energy release and outburst of rock (coal) in a free space occurs.
In mining engineering very important phenomenon exists, which is an aftermath of accumulation of energy at the face of excavated wall. After exceeding some threshold the energy release and outburst of rock (coal) in a free space occurs. (en)