TY JOUR TI Comparative Analysis of Methods for Assessing Initial Displacements of the Near-Face Area in Conditions of Low-Strength Semi-Rocky Soils KW rock pressure KW road tunnel KW mining method of tunnel construction KW 3D deformation KW longitudinal displacement profile KW convergence KW β-method JO Proceedings of Petersburg Transport University AU Kavkazskiy, V.N. AU Ermonin, E.A. PY 2026 IS 23 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"