ASSESSMENT OF SEISMIC EFFECTS DURING MINING
DOI:
https://doi.org/10.46763/Keywords:
seismics, blasting, oscilations, effects, safetyAbstract
The large application of the blasting technique in engineering arises from the fact that one blasting replaces months of work by machines and people. Wide application of the mining technique is because during blasting the seismic impacts can be controlled and reduced to a minimum level. Today, blasting is often carried out in the immediate vicinity of various objects, buildings, factories, and even refineries, hydro facilities, nuclear power plants.
During blasting, in the first stage, the solid matter of the explosive is converted into a highly compressed gaseous state, and then the gas expands, during which the potential energy is converted into mechanical work. This energy, at the place of blasting, destroys, crushes the rock mass, or creates permanent deformations in the rock. Seismic waves, which propagate with the transmission of deformation, cause the ground and structures to oscillate.
The seismic waves that occur during blasting are similar to the waves that occur during earthquakes, so many laws defined in seismology are used in blasting seismics.
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