Semmering Base Tunnel, Austria

The new Semmering Base Tunnel is one of the key projects in the expansion and upgrading of Austria's southern railway. The twin-tube, 27.3-km-long tunnel will connect Gloggnitz (in Lower Austria) and Mürzzuschlag (in Styria). The new Semmering Base Tunnel is also a part of the Baltic-Adriatic railway corridor.

INSITU Geotechnics is providing soil mechanical and geotechnical consulting and planning services for the tunnel in Fröschnitzgraben (SBT2.1), as well as for access roads, the disposal site in Longsgraben (SBT2.3) and the tunnel in Grautschenhof (SBT3.1).

Services

  • SBT2.1, SBT3.1 / Tender and execution planning: involvement during the drafting of a geotechnical prognosis; involvement during the conceptual design of geotechnical measures; geotechnical consulting services for the project planning team
  • SBT2.1 / Construction phase: on-site geotechnical engineering assistance; inspection and review of existing ground conditions; evaluation and interpretation of the geotechnical control survey measurements; defining of necessary geotechnical measures on-site
  • SBT2.3 / Tender and execution planning: soil mechanical and geotechnical assessment; conceptual and engineering design of slope stability measures and support structures: bored pile walls, soil nailing, steel mesh, masonry retaining walls, reinforced earth measures; concept for a geotechnical safety management plan; geotechnical consulting services for the project planning team
  • SBT2.3 / Construction phase: on-site geotechnical engineering assistance; inspection and review of existing ground conditions; evaluation and interpretation of the geotechnical control survey measurements; defining of necessary geotechnical measures on-site
  • Execution of, evaluation of, and interpretation of geotechnical measurements (inclinometer)
  • Consulting during site subsoil investigation; evaluation of the ground conditions

Client

ÖBB-Infrastruktur AG, Vienna (Austrian Federal Railways, Infrastructure Dept.)

Period

since 2010

 
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