TY JOUR TI EFFICIENCY OF DESTRUCTION OF ROCKS AND REINFORCED CONCRETE STRUCTURE IN SOLVING PROBLEMS IN EMERGENCY SITUATIONS USING SHOCK WAVE CUTTING THECHNOLOGY KW shock-wave charge KW bilinear charge KW mathematical model KW Mach wave KW experiment KW rock KW concrete bloc JO Problems of risk management in the technosphere AU Doroshenko, S.I. AU Nefedev, S.A. AU Malykh, V.A. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia