CENTRAL SECTION OF THE REGIONAL RAPID TRANSIT UNDERGROUND RAILWAY. INVESTIGATIONS AND STUDIES, CONSTRUCTION OF AN EXPERIMENTAL GALLERY BY MEANS OF A BORING MACHINE

TRONCON CENTRAL DU METRO EXPRESS REGIONAL. TRAVAUX DE RECONNAISSANCE ET D'ETUDES, EXECUTION D'UNE GALERIE EXPERIMENTALE A L'AIDE D'UNE MACHINE A FORER

This article describes the construction of the experimental section, which comprises a 900M two-lane tunnel excavated from Marl, the Chatelet open-cut station, and 2 one-lane 2km 500 tunnels 6M 30 in diameter excavated out of limestone, the Gare de Lyon Station, and two one-lane tunnels between the gare de Lyon and Nation Stations, which will be built by means of conventional methods. After stabilizing the ground, it was decided to use a unibo rotary drilling machine 3 min diameter. Details are given of the construction site, wear of tools, rate of progress, ingress of water, wet spoil removal, behaviour of the ground precision of the machine used and guiding laser device. Tests were carried out on provisional timbering, final linings, stress measurements in the supports, ground deformations; and extrapolation to real tunnels. /TRRL/

  • Corporate Authors:

    Comite Francais de Mecanique des Roches

    Rue du Grand Moulin 19
    Saint Etienne,   France 
  • Authors:
    • LUPIAC, L
  • Publication Date: 1973-7-15

Language

  • French

Media Info

  • Pagination: 3 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128128
  • Record Type: Publication
  • Source Agency: Central and Regional Labs of Bridges & Highways,Fr
  • Report/Paper Numbers: Cahier 5
  • Files: ITRD, TRIS
  • Created Date: Feb 19 1981 12:00AM