LILLE METRO

This article describes tunnelling work on the metro in Lille, in northern France, which is expected to have expanded to 45km of lines by the year 2000. The 13km long Line 1 is already operating, and Line 1 bis is 12km long. Line 2, which is essentially an extension of line 1 bis, will be constructed in four lots, of which two are now in progress. Lot 1 will have eight stations and 4.7km of tunnel with 6.8m finished internal diameter. The 2.5m deep main shaft, which is being used for handling materials and muck, is unusually installed only for construction purposes and will not later be converted into a metro station. The tunnel alignment passes through Flemish clay, and is being constructed using a new 7.65m diameter, 460t EPBS (Earth Pressure Balance Shield) made at Lille by FCB. The EPBS will drive south for 3.5km, then turn round and drive north. Bentonite is pumped to it along a pipeline, and two similar lines carry water and compressed air. The lining consists of neoprene-gasketed, bolted segments; it is erected within the tailskin, and each ring consists of five bolted segments and a wedge.

  • Availability:
  • Corporate Authors:

    THE MINING JOURNAL LTD

    60 WORSHIP STREET
    LONDON,   United Kingdom  EC2A 2HD
  • Authors:
    • Smith, M
  • Publication Date: 1993-10

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 327-8
  • Serial:
    • WORLD TUNNELLING
    • Volume: 6
    • Issue Number: 8
    • Publisher: THE MINING JOURNAL LTD
    • ISSN: 0956-8700

Subject/Index Terms

Filing Info

  • Accession Number: 00663434
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 24 1994 12:00AM