Geotechnical and Engineering Geological Aspects of the St. Petersburg Subway Tunnels Serviceability and Safety

The St. Petersburg subway, one of the deepest running systems in the world, is characterized by complicated engineering geological, geotechnical, and geoenvironmental conditions affecting the serviceability and safety of the tunnels. This paper presents the results of investigations conducted to enhance the long-term stability of St. Petersburg subway tunnels. These investigations were started in 2005 with a field observation. There was indication of deformation and deterioration of the tunnels including cracks, movements of lining elements, structural materials’ disintegration through different types of corrosion, joint deteriorations, and seepage. This prompted a major research effort including analysis of the engineering-geological conditions of the tunnels, analysis of the engineering properties of the surrounding soils, deformation analysis of the tunnels, sampling of the ground water seeping from the tunnels, sampling of the deteriorated materials, and sampling of the salt deposits and microbial products. The relationship between tunnel deformation and engineering geological conditions is discussed.

Language

  • English

Media Info

  • Media Type: Web
  • Features: Figures; References;
  • Pagination: pp 223-231
  • Monograph Title: Innovations in Geotechnical Engineering: Honoring Jean-Louis Briaud

Subject/Index Terms

Filing Info

  • Accession Number: 01682823
  • Record Type: Publication
  • ISBN: 9780784481639
  • Files: TRIS, ASCE
  • Created Date: Oct 4 2018 5:00PM