Harmash O. Organizational and Technological Solutions to Ensure Operational Durability of Complex of Structures for Sewer Tunnels

The thesis is devoted to solving the problems of ensuring the operational durability of a complex of sewage tunnel facilities by developing effective technical, technological and organizational solutions for their repair and restoration. Considered the constructive decisions and the state of tunnels, which for almost half a century are in operation, duplicate tunnels and survey mines. The main factor influencing durability is considered - impact of corrosion on the state of structures of tunnels and mines. The paper deals with the technology of manufacturing of structural elements from secondary polymeric composite materials (SPCM) have been developed. The method of calculating the design of the facing, technical, and organizational and technological solutions for the repair and restoration of survey mines on existing tunnels has been developed. Corrosion-resistant concrete has been investigated for arranging missing processing in duplicate tunnels and repairing inspection mines.