EXPERIENCES DURING THE CONSTRUCTION OF LARGE TUNNEL CROSS SECTIONS IN PARTIAL HEADINGS FOR THE UNDERGROUND RAILWAY OF MUNICH

ERFAHRUNGEN BEI DER ERSTELLUNG GROSSER TUNNELQUERSCHNITTE IN TEILVORTRIEBEN BEIM MUENCHNER U-BAHN-BAU

The paper describes the tunnel sections driven and the partial excavation method chosen to do the work. The reasons for choosing this particular excavation method are discussed. They include the fact that the tunnels are being built in young tertiary soil enclosing a series of strata of pressurized water bearing sand and of silty, clayey and often marly soil. The excavation areas are limited by the stand-up time and the often very different strength of the soil. Caused by the heterogeneous strata in many cases, a sufficient dewatering operation by drainage wells is impossible, even with the aid of vacuum installation. By means of partial drives and by drainage measures taken out of the galleries a satisfactory lowering of the residual groundwater is to be done. The driving in part-sections and an expedient sequence of the working stages enable gradually small ground movements with wide and flat depressions due to settlement in transverse and longitudinal section, causing no damage to the built-up area.

• Supplemental Notes:
  • Ingenieurgeol und Geomech im Talsperren- und Tunnelbau, Vortr Des Geomech-Kolloq der Oesterr Ges fuer Geomech, 29th Salzburg, Austria, Oct 9-10 1980.
• Corporate Authors:

  Springer Verlag

  175 5th Avenue
  New York, NY  United States  10010
• Authors:
  • Krischke, A
  • Weber, J
• Publication Date: 1981

Language

• German

Media Info

• Pagination: p. 107-126
• Serial:
  • Rock Mechanics, Felsmechanik, Mecanique des Roches
  • Issue Number: 11
  • Publisher: Springer Verlag

Subject/Index Terms

• TRT Terms: Construction; Groundwater; Soils; Subways; Tunneling machines
• Uncontrolled Terms: Soil conditions
• Geographic Terms: Munich (Germany)
• Old TRIS Terms: Groundwater control; Subway construction
• Subject Areas: Construction; Geotechnology; Public Transportation;

Filing Info

• Accession Number: 00362108
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 30 1982 12:00AM