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James Bourchier Metro Station

  • Employer: Metropoliten EAD
  • General Contractor: Geotechmin ООD. 
  • Subcontractor: Geostroy AD
  • Project completed in 2012

GEOSTROY was involved in the implementation of this project as a subcontractor of Geotechmin OOD. The project scope included the construction of James Bourchier Metro Station, a tunnel section after it and an adjacent car park above the two facilities.

The station located under Cherni Vrah Boulevard is 208 m long and 18.7 m wide, while the tunnel section is 215 m long and 15 m wide.

In terms of construction technology, the metro station is one of the most complicated Sofia Metro projects. This is because it was built at a depth of 27 – 22 m in the different sections, and because it was executed in compliance with the Employer’s requirement not to interrupt the traffic along the boulevard throughout the whole construction process. A specific characteristic of this project was the adoption of a pre-stressing technology to build the tunnel roof slab and partially the floor slabs in the tunnel and in the station. This technology was used for the first time in the metro construction in Bulgaria.

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