The technology of ensuring accident-free operation of tunnels and underground structures is presented. An analysis of various technical solutions currently used in the open and semi-closed method of constructing underground structures for transport purposes is given. Methods for reducing the occurrence of emergency situations during the operation of tunnels and underground structures are proposed.

Keywords: building structures, metal structures, energy facilities, stress-strain state, technical expertise

Technical solutions aimed at preventing and eliminating the consequences of emergency situations in tunnel construction practice (in terms of laying utility lines or subways) are defined. Technical solutions are given taking into account their implementation in the conditions of structures under construction and in operation, characterized by a repeatable and predictable nature of occurrence.

Keywords: building structures, technology, repair work, underground utilities, tunnel, metro construction