TY JOUR TI Frozen Soil Parameters at Numerical Simulation of Thermophysical Tasks KW numerical modeling KW thermophysical modeling KW frozen soil KW permafrost soils KW soil heat capacity KW soil thermal conductivity KW midas JO Proceedings of Petersburg Transport University AU Slivec, K.V. AU Kolmogorova, S.S. AU Kovalenko, I.A. PY 2022 IS 19 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"