TY JOUR TI ASSESSMENT OF THE LEVEL OF PROTECTION OF THE POPULATION IN MULTI-APARTMENT RESIDENTIAL BUILDINGS UNDER THE IMPACT OF DOMESTIC GAS EXPLOSIONS KW population protection KW domestic gas explosion KW risk assessment KW finite element method KW emergency modeling KW building stability KW shock wave loading JO Problems of risk management in the technosphere AU Grigoryan, A.A. AU Strelkov, I.K. AU Rybakov, A.V. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia