TY JOUR TI Method of underwater urban tunnels construction in unrelated silty soils KW underwater urban tunnel KW weak silty soils KW pushing KW immersed sections KW operating element JO Proceedings of Petersburg Transport University AU Mel'nik, Y.V. AU Fedorov, A.E. PY 2024 IS 21 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"