Geophysical Journal | 2000 volume 22 1

The stressed state of a geophysical medium at spatial-temporal disconcentration of underground explosions

© Vladimirov V.A., Mykuliak S.V.

A closed system of equations has been set up which considers relaxation properties of a medium with inner structure. The methods of controlling the stressed state of a rock salt massif at the explosion waves interaction have been studied. It is shown that the optimal increase of dilatational discompaction is reached when the slowing down time at the initiation of the charges is 40-60% of the excess pressure and the distance between them is 15 charge radii. The influence of the relaxation time and the "frozen" - to balanced sonic sped ratio on the stressed state caused by pulse loads is studied.

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