Foundation work for new construction of a large bridge

Constructing the 11.5 km west bypass in Rosenheim: For this project, Bauer Spezialtiefbau was tasked with foundation work for the new construction of a large bridge over a railway line. No easy task, since the execution of the mixed foundation was very elaborate: In total, roughly 11,500 m² of pressed sheet pile wall, 15,000 m of vertical drains and 253 large-diameter bored piles were constructed up to a depth of 50 m. The particular challenge: the unique construction soil on site. Starting from a depth of roughly 2 m to 5 m is a soil known as Rosenheim marine clay. This was an extremely sensitive soil stratum which offered a very low load-bearing capacity and high water content. A large project with many challenges.