TY JOUR TI Numerically modelled stress-strain state of rail-mounted jib crane within a three-dimensional non-stationary framework KW rail-mounted self-propelled boom cranes KW dynamic loading regime KW outrigger settlement KW loading regime dynamics KW three-dimensional non-stationary setting KW loss of soil stability in a sloped section of a railway track JO Bulletin of scientific research results AU Munzarov, I.N. AU Vorob'ev, A.A. AU Vataev, A.S. AU Vatulin, Y.S. AU Mayorov, V.S. PY 2026 IS 2026 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"