PROCESS OF EXCITATION OF SEISMIC WAVES Russian patent published in 2001 - IPC

FIELD: geophysical investigation with use of linear group of blast hole charges in zone of low velocity. SUBSTANCE: linear group of blast holes is bored at distance one from another calculated with due account of value of zone of plastic deformation of ground formed by blast of single charge in group. Blast holes are charged with explosive charges. Charges are fitted with initiation means. Explosive charges are connected in network and are linked to mains wires. Group of charges is blasted simultaneously. Distance between adjacent blast holes is equal to three as minimum and to not more than eight radii of zones of plastic deformation. All blast holes are loaded with charges of same mass. EFFECT: increased quality of field seismic prospecting material due to reduced level of surface waves of noise and to enhanced intensity of legitimate signal by way of selection of optimum distances between blast holes.