{"id":29842,"date":"2024-06-12T17:30:07","date_gmt":"2024-06-12T15:30:07","guid":{"rendered":"https:\/\/www.soletanche-bachy.com\/parois-moulees-en-cours-de-construction-pour-la-phase-iv-du-fast-tram-de-cracovie\/"},"modified":"2025-01-20T17:42:57","modified_gmt":"2025-01-20T16:42:57","slug":"molded-walls-under-construction-for-phase-iv-of-krakows-fast-tram","status":"publish","type":"post","link":"https:\/\/www.soletanche-bachy.com\/en\/molded-walls-under-construction-for-phase-iv-of-krakows-fast-tram\/","title":{"rendered":"Diaphragm walls under construction for Phase IV of Krakow’s Fast Tram"},"content":{"rendered":"

12\/06\/2024<\/p>\n<\/div>

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Diaphragm walls under construction for Phase IV of Krakow’s Fast Tram<\/h1><\/div>
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The Krak\u00f3w Fast Tram Stage IV will be a new double-track tramway that will connect residential districts located in the north part of Krak\u00f3w with the city centre. The total tramway length will be 4.5 km, 1.23 km of which will constitute an underground tunnel. The scope of work for Soletanche Polska encompasses the construction of diaphragm walls with a total length of about 2.5k metres and a maximum depth of 21 metres. <\/strong><\/p>\n<\/div>

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\u201cFrom the technical perspective, the most interesting task during the accomplishment of the fourth stage of the investment is the conduction of foundation work under the active Gen. Mateusz I\u017cycki Bridge,\u201d says Justyna \u017babka, Project Manager at Soletanche Polska.<\/p>\n

The general contractor responsible for Krak\u00f3w Fast Tram Stage IV is the G\u00dcLERMAK company. The primary scope of work for Soletanche Polska encompasses the construction of diaphragm walls in the underground tramway tunnel section and in the underground passenger stations: Rondo Polsadu and Rondo M\u0142y\u0144skie. The diaphragm walls were designed with different purposes in mind. Primarily, they are to constitute the final support of the underground tunnel and the final structure of the underground stops (stations and their entrances). Furthermore, in some spots the diaphragm walls serve as shoring and thereby secure the trench during the conducted work.<\/p>\n<\/div>

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Soletanche began the excavation of the diaphragm walls in early October 2023, with the Rondo Polsadu station.<\/p>\n

\u201cOur team has to construct diaphragm walls with a total length of 2.5k metres and a maximum depth of 21 metres. Their thickness depends on the exerted loads and equals 60 centimetres, 80 centimetres or 1 metre. The thickest diaphragm walls were designed for the Rondo M\u0142y\u0144skie station,\u201d explains Justyna \u017babka, Project Manager at Soletanche Polska.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

\u00a0The most interesting geotechnical solutions<\/strong><\/h2><\/div>

Building the fourth stage of the Krak\u00f3w Fast Tram is a complex undertaking, as it is carried out in a residential area with numerous office buildings, shops and an advanced transport infrastructure with significant traffic.<\/p>\n

Currently, Soletanche is conducting some of the most difficult work \u2013 the construction of diaphragm walls under the active Gen. Mateusz I\u017cycki Bridge.<\/p>\n

\u201cThe existing Bridge considerably limits the construction gauge, that is the free undeveloped space that allows the personnel to conduct construction work freely by means of major and heavy machinery. In this case, the height from the ground level to the bottom of the Bridge girders is only 7 metres. We had to bring specialist equipment from France and Germany to the site, which made it possible to construct diaphragm walls with a thickness of 80 centimetres and a depth of up to 21 metres at this location,\u201d says Justyna \u017babka from Soletanche Polska.<\/p>\n

Soletanche Polska is building diaphragm walls next to the foundations of the Bridge. Excavation is performed in a way that limits the impact of the conducted work on the foundation of the existing Bridge to a minimum.<\/p>\n

\u201cWe\u2019re constructing sections under the Bridge with dimensions much smaller than in standard diaphragm walls. For example, the length of a standard section ranges from 6.5 to 9.5 metres, whereas those under the Krak\u00f3w bridge are only about 3-metres-long. The primary goal is to ensure the safety and stability of the structure of the bridge,\u201d stresses the Project Manager at Soletanche Polska.<\/p>\n<\/div>

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\u00a0Monitoring the Krak\u00f3w bridge<\/strong><\/p>\n

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The Bridge and the nearby buildings are subjected to specialist monitoring provided by Sixense. The technology makes it possible to control the state and operational behaviour of the construction, the infrastructure and its surroundings.<\/p>\n

\u201cWe installed inclinometers in our diaphragm walls, which enable the conduction of horizontal displacement measurements in the monitored structure. This makes it possible to adopt specific countermeasures early on to prevent any occurring hazards,\u201d states Justyna \u017babka.<\/p>\n<\/div>

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Public transport and Soletanche\u2019s experience<\/strong><\/h2><\/div>

\u201cPublic transport contracts open up huge opportunities for us. Not only do they provide an opportunity to grow our business, but they also fit perfectly with our strategy of caring for the environment. Public transport is a key element in shaping the sustainable development of cities and regions. Implementing projects in this area is also an expression of our commitment to social and environmental issues. For this type of tasks, we look for and propose geotechnical solutions that not only contribute to improving the quality of life of the inhabitants, but also promote environmental protection,\u201d clarifies Hubert Tomczak, Managing Director at Soletanche Polska.<\/p>\n

Soletanche Polska has substantial experience in accomplishing investments supporting the development of urban public transport. The company has performed trench shoring using diaphragm walls for stations and rail tunnels in the M1 subway line (stations: M\u0142ociny, Stare Bielany, S\u0142odowiec) and M2 subway line (stations: Br\u00f3dno, Kondratowicza) in Warsaw. In the latter case, Soletanche Polska is currently conducting work during Stage III of the western section construction. The company is building diaphragm walls and a horizontal barrier by means of jet grouting at the final C01 Karolin station.<\/p>\n

Furthermore, Soletanche Polska is involved in projects encompassing the construction and modernisation of bridges, tunnels and other elements of infrastructure that have key significance for the efficient functioning of Polish railway. Currently, the company is laying the foundation for the new Warszawa Zachodnia railway station and takes part in the construction of a 7.5 kilometre-long cross-city railway tunnel that is being built 17 metres beneath the city centre of \u0141\u00f3d\u017a.<\/p>\n<\/div>

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