📋 Tender Overview
The TBM Faustyna machine started the construction of the second single-track railway tunnel on the underground route between the d Fabryczna d Kaliska and od abieniec stations. The investment carried out by PKP Polskie Linie Kolejowe SA worth over PLN 1.5 billion net is co-financed by the OPI E.Today June 15 Faustina took off from the branch chamber at ul. Stolarska in the direction of the d Koziny stop and the d abieniec station. On a section of approximately 1100 meters the second of 4 single-track tunnels with a diameter of 8.5 meters will be built which will connect the main double-track tunnel towards d Fabryczna with the d Kaliska and d abieniec stations.After building the first tunnel from the chamber on ul. Dugosza at Al. Wkniarzy to ul. Stolarska 940 m long the machine was inspected. Using specialized cranes individual sections including the face of the shield were brought to the surface where the equipment was maintained and the worn-out elements were replaced among others. cutting parts. Then the individual TBM sections with a total length of 110 meters and a weight of over 1.3 thousand. tons were rotated 180 degrees and placed back in the chamber. The efficient operation of connecting the necessary elements allowed the machine to start.TBM Faustyna will build two more underground lines i.e. a tunnel from the chamber at ul. niwna approx. 760 meters long to the branch chamber at ul. Stolarska and the tunnel from the chamber at ul. Stolarska 710 meters long to the chamber at al. Union of Lublin.At the same time the larger machine has reached Polesie where it is currently undergoing a survey of the face of the shield before drilling through the wall of the underground stop. TBM Katarzyna with a diameter of over 13 meters is boring a 2.7 km double-track tunnel from Stolarska Street to the d Fabryczna station. The contractor also continues work on the construction of the d rdmiecie d Polesie and d Koziny stops.Safety is the priorityDrilling progress depends on geotechnical conditions. Machines pass through a variety of terrain waterlogged soil hard and large boulders sands. TBMs have an ongoing service e.g. on the TBM head replacement of cutting tools and cutting disks. The exact course of the tunnel is maintained by monitoring and control devices. The work of the machines is supervised by the staff in the cabin inside the TBM. The special design of the machines prevents subsidence landslides and vibrations. Interference and collisions with the municipal infrastructure power heating gas water networks etc. are limited. The contractor monitors the area on an ongoing basis and performs vibration measurements.The tunnel connects PolandThe cross-city tunnel is a project of P OIi 5.1-15 Improvement of the d Railway Junction TEN-T stage II section d Fabryczna - d Kaliska d abieniec - continuation of the construction of the d Fabryczna station which will become a transit station from the end station. Regional and long-distance trains will run through the very center of d - on the east-west axis through d Widzew Fabryczna and Kaliska stations and on the north-south axis through d Widzew Fabryczna abieniec stations. The project is extremely complicated carried out near the city center and in difficult terrain. More information about the project httptunel-laczypolske.pl .
