HBM, a subsidiary of Soletanche Bachy in Hungary, has carried out the piling and temporary works for the construction of the future piers of the Kalocsa-Paks bridge. This new road bridge, with a total length of 946 metres, crosses 506 metres of floodplain and 440 m of the Danube, and is designed to reduce travel time between the two towns of Kalocsa and Paks, and the M6 freeway, by 15 minutes.

HBM installed 1,040 lm of piles in the river and 1,196 lm on the river bank, each with a diameter of 1,500 mm. Beneath these two river platforms, at a depth of 17 m, the teams created watertight walls using jet grouting, as well as plugs with 3.3 m diameter columns beneath the surface of these two artificial islands.

These structures are designed to ensure the watertightness of the pits and the stability of the excavation base. Soletanche Polska, the Group’s Polish subsidiary, also took part in the project, contributing its expertise in the jet grouting process.