According to CPK, the Łódź CPK railway investments are being implemented on schedule, including work on strengthening the foundations of the Łódź Cultural Center and the construction of the Retkinia chamber. The entire section of the HSR from Warsaw to Łódź, including the tunnel under the city, i.e. part of the railway “Y”, will be put into service in 2032.
Specialist construction works are being carried out on the premises of the most advanced railway investment of the CPK.As part of he first contract (worth slightly over PLN100 million/EUR 23.24 million) – reinforcement of the foundations of the Łódź Cultural Centre, the contractor Keller Polska is completing the reinforcement works by carrying out micro piling and using the jet grouting method (a process of strengthening the substrate, consisting of mixing soil with cement grout, pressed under high pressure).
Only after the completion of works at the ŁDK, in its immediate vicinity – the Łódź Fabryczna station, will it be possible to start the construction of the receiving chamber (Fabryczna) for the TBM boring shield.
This work is part of the second contract, carried out by Budimex, worth PLN 147 million(EUR 34 million). The contractor, who has been carrying out the construction of the first of the chambers – the starting chamber on Retkinia – on behalf of the CPK since June this year, has already poured most of its ceiling and started to extract the soil using the sub-ceiling method .
“The construction of the HSR tunnel is one of the most important and technically demanding elements of the railway “Y”. The very fact that it will pass under the living urban fabric requires the investor to maintain the highest standards in every element of its implementation, and especially in terms of ensuring safety,” says Dr. Filip Czernicki, president of the CPK company.
CPK is also preparing to decide (the tender was announced in July this year) the third, largest contract among the company’s Łódź rail investments – selecting a contractor who will be responsible for excavating and building (together with the necessary infrastructure) a 4.6 km tunnel. The underground passage with a diameter of about 14 meters will be excavated with a mechanized TBM shield, and thanks to the two tracks placed inside, trains will be able to move in both directions at a speed of up to 160 km/h .
Trains travelling on railway line no. 85 (LK85) from Warsaw will enter the tunnel from Łódź Fabryczna station. The tunnel’s exit to the surface will be located southwest of Łódź Kaliska, near the Retkinia estate and the existing LK14. The route will then lead west – towards Sieradz, behind which there will be a “Y” fork – to Wrocław and Poznań.
The launch of the Warsaw–Łódź high-speed rail section in 2032 will allow the train to cover this route in about 40 minutes, which is almost twice as fast as at present.
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