High Speed Railway Bologna Underground Station

Bologna, Italy

The High Speed Railway Bologna Underground Station represents a landmark infrastructure project in Italy’s rail network modernization. Commissioned by ITALFERR and executed by the STONE-ASTALDI consortium, this ambitious undertaking required comprehensive structural engineering expertise to deliver a state-of-the-art underground railway facility capable of accommodating high-speed rail operations in a dense urban environment.

The project presented significant engineering challenges due to its underground location in Bologna’s historic city center, requiring careful coordination with existing infrastructure, stringent safety requirements, and innovative construction methodologies to minimize disruption to the surrounding area while maintaining structural integrity throughout all phases of construction and operation.

Project Scope

TECON was engaged to provide comprehensive structural engineering services for this major underground railway infrastructure project. The scope encompassed detailed structural design, construction methodology development, and ongoing technical support throughout the execution phase to ensure adherence to design specifications and safety standards.

Underground Station Structure

  • Design and engineering of a 600-meter long underground high-speed railway station
  • Integration of platform areas, access tunnels, and service corridors
  • Accommodation of high-speed train operations with appropriate clearances and safety systems
  • Coordination with existing underground utilities and infrastructure

Structural Systems

  • Comprehensive reinforced concrete structural design for permanent works
  • Steel structural systems for both temporary and permanent applications
  • Load-bearing walls, columns, and foundation systems
  • Roof and ceiling structures designed for operational loads and seismic requirements

Construction Methodology

  • Open trench excavation methodology with advanced ground support systems
  • Steel strut temporary support system for excavation stability
  • Innovative dual-use steel struts functioning in both construction and service phases
  • Sequencing and phasing plans to minimize construction risks and urban disruption

Engineering Approach

TECON’s engineering approach combined advanced structural analysis with practical construction expertise. The team developed detailed structural calculations and 3D modeling to optimize the design for both safety and constructability. The innovative use of steel struts in dual roles significantly reduced project costs and construction time while maintaining the highest safety standards. Throughout the construction phase, TECON engineers provided continuous on-site support, reviewing contractor methodologies, monitoring structural performance, and responding to field conditions with timely engineering solutions. This comprehensive approach ensured that the project met all design criteria while adapting effectively to the challenges inherent in complex underground construction in an urban setting.

Project Data

OWNER
ITALFERR

CLIENT
STONE – ASTALDI

PROJECT PERIOD
2005 – 2010

STATION LENGTH
600 meters

STRUCTURE TYPE
Underground Railway Station

CONSTRUCTION METHOD
Open Trench with Steel Struts

MATERIALS
Concrete & Steel

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