Vynohradar Metro: relocation of a 1.2 m diameter sewer collector from the construction zone has begun

As part of the project, a new stormwater drainage system with a total length of 400 meters will be constructed, using over 200 pipes. The works are being carried out using microtunneling — a modern, high-precision trenchless technology for installing underground utilities without surface excavation. This allows construction to be performed in dense urban environments without disrupting traffic or surrounding infrastructure.
Currently, preparatory works are underway, including the construction of two shaft structures (launch and reception chambers), from which tunneling operations will commence in the coming months. For this purpose, Autostrada has procured a remotely operated pipe-jacking system manufactured by the German company Herrenknecht AG. The equipment, valued at approximately €1 million, enables precise pipe installation through the soil, ensuring process stability even under complex geological conditions. A single drive can reach up to 150 meters in length, ensuring efficiency and continuity of operations.
On the section between the Mostytska and Varshavska stations, more than 1,000 meters of double-deck monolithic tunnels have already been constructed (500 meters on each level). Construction is being carried out simultaneously on two sections, significantly accelerating the overall pace of works. In addition, the construction of monolithic structures at the fork junction towards the future Vynohradar station has been completed.
At the Mostytska station, approximately 200 meters of each tunnel have been constructed using precast segmental lining. The next stage involves the installation of cable structures within the completed tunnels, serving as preparation for the subsequent installation of engineering systems and power supply networks.
In the shaft above the deep-level tunnel between the Syrets and Mostytska stations, the installation of a segment erector has been completed. This equipment will be used to reconfigure the lining rings of the left running tunnel, replacing them with larger-diameter segments. This is required for the subsequent dismantling and removal of the tunnel boring machine to the surface after the completion of tunneling works. The right running tunnel on this section has already been completed.
Construction of the turnback sidings at the Varshavska station is currently in its final stage. At present, a shield-type watertight bulkhead — a massive steel structure designed to isolate tunnels and stations — is being installed. It provides protection against potential emergencies, including blast waves, flooding, and hazardous substances, and is a key element of the civil protection system, allowing underground structures to be divided into sealed compartments.
Across all construction sites of the Vynohradar metro project, a comprehensive relocation of engineering utilities beyond the construction zone is ongoing. This includes the phased relocation of water supply and drainage systems, as well as the transfer of power cable lines. These works ensure the uninterrupted functioning of urban infrastructure and create the necessary conditions for further construction activities without constraints.
Construction works at the site are being carried out continuously, 24/7.