Rock blocks motion in large-scale underground explosions: experimental data

The instrumental measurement results of the residual shifts and deformations of rocks massif under the action of underground nuclear explosions are presented. The main attention is paid to the problems of deformations localization in the vicinity of breakage and large cracks limiting the rock blocks by the dimensions of tens and hundreds meters. The regularities of amplitude changes of between-block shifts with distance are revealed. The characteristic sizes of the consolidated blocks conglomerates are estimated that are moved by a large-scale explosion.