Bern Train Station Expansion - PostParc Mitte (RBS Los 1.2)

Stasjonsutvidelse under PostParc

The Bern Train Station Expansion project, identified as RBS Los 1.2, focuses on enlarging the train station beneath the PostParc Mitte building. This sub-project is integral to the business and office center's foundation, involving the reinforcement of four former post lift supports. These supports will be replaced to maintain the structural integrity of the PostParc building during the cavern excavation for the new train station.

Installasjon av overføringsbjelker

Given the complexity and high precision required, two new transfer beams and 36 lateral micropiles are being installed for each support. The 24-meter-long micropiles are arranged fan-shaped around the caverns, with each micropile constructed from 1-meter-long sections due to tunnel space limitations. The transfer beams are segmented and will be heavily reinforced and concreted over in stages to ensure stability.

Presisjonsarbeid med mikropæler

The construction work includes extensive tunneling, reinforced concrete works, and the use of 48 hydraulic set-collar presses to pretension the beams in stages. This is further supported by an intricate control and monitoring system. Supplies and waste must be transported by rail, necessitating a meticulously organized nighttime logistics schedule due to train operations.

CO2-nøytral byggeplass

The project embodies a strong commitment to sustainability, employing almost exclusively electric vehicles and machinery to achieve a CO2-neutral construction site. Critical statistics highlight the scale of the operation, including 1,800 meters of pipe roof, 2,500 m³ of rock excavation, and 650 m³ of shotcreting.

Ferdigstilt i mars 2021

The construction began in August 2018 and was completed by March 2021, with a total construction volume valued at 13.7 million CHF. The project involved collaboration with multiple stakeholders including RBS - Regionalverkehr Bern-Solothurn and several engineering and architectural firms such as Emch+Berger and Basler+Hofmann.