Movement of Rock Blocks During Large-Scale Underground Explosions. Part I: Experimental Data

The instrumental measurements are cited for residual displacements and strains in the rock mass under action of underground nuclear explosions. The main attention is given to the problems of strain localization in the vicinity of faults and large cracks bounding the rock blocks with the sizes of tens and hundreds of meters. As the distance changes, the regularities of variation in interblock displacement amplitude are revealed, and the characteristic dimensions of consolidated block conglomerates moved due to a large-scale explosion are estimated.