ABSTRACT
It is better to use vertical stress. vertical retreat mining (VRM), mining methods where the vertical crater retreat blasting
method is used. The method is usually used in smaller ore bodies in combination with sublevel shrinkage stoping.
It is better to use vertical stress. vertical retreat mining (VRM), mining methods where the vertical crater retreat blasting
method is used. The method is usually used in smaller ore bodies in combination with sublevel shrinkage stoping.