PROCESS OF RUNNING OF BLASTING OPERATIONS Russian patent published in 1998 - IPC

FIELD: blasting operations, engineering seismology, check of short-delay blasts during development of mineral resources or loosening of ground in strained conditions of construction, during experimental studies for modeling of seismic action of earthquake. SUBSTANCE: in accordance with process changes of current value in DC electric circuit connected to detonating cord of blasted system over section between inhibitor and charge are recorded. Analysis of additional recording and isolation of individual blasts in group are conducted by change of current pulses assumed as number of individual blasts. Actual interval between blasts is determined by distance between individual current pulses. Total duration of blast process is found by distance between extreme current pulses. These data are also compared with recording of excited vibrations of short- delay blasts and correction to this recording is determined. EFFECT: enhanced productivity of process thanks to provision of complex check of blasts in complex conditions. 4 dwg