TY JOUR TI Modern approaches to monitoring deformations of transport tunnels: technologies, principles and development trends KW tunnel monitoring KW European school KW early deformation warning KW laser scanning KW fiber optic sensors KW digital twin JO Smart composite in construction AU Egorychev, P.A. AU Ignatyev, A.A. PY 2026 IS 7 PB Yaroslavl State Technical University