Explosive wave propagation in the presence of antiseismic protective curtain
Resumen
The objective of this work is to study theoretically the stress
wave formation in the borehole-to-borehole space and on the boundary
with the borehole contour set by creating a directed fracture system in it.
The features of an interaction of the weak stress wave at a large-scale
blasting in the short-delay blast mode (SDB) with the massif and the
protective contour set of boreholes, are considered. It is noted the effect of
the contour set parameters on wave processes. The constructive solutions
are proposed in order to reduce the dynamic loadings in the peripheral rock
massif. The proposals consist in applying a combined construction of
garland charges to form the seismo protective structure that consists of a
contour fracture and one-sided disrupted zone within the boundaries of the
blasted block.