TY JOUR TI COMPUTER SIMULATION OF THE EFFECTS OF AN AVALANCHE ON INFRASTRUCTURE FACILITIES IN EMERGENCIES KW snow KW snow avalanche KW modeling KW particle dynamics KW experiment KW simulation KW motion trajectory JO Problems of risk management in the technosphere AU Kalach, A.V. AU Soloviev, A.S. AU Lentyaeva, T.V. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia