THE BRUXELLES UNDERGROUND RAILWAY, THE USE OF COMPRESSED AIR FOR TUNNEL DRILLING

LE METRO DE BRUXELLES, PROCEDE D'EXCAVATION DE TUNNEL SOUS AIR COMPRIME

After having briefly described the construction of a tunnel beneath the water table by means of mud walls, the author studies the geological characteristics and the permeability of the soil in the subsoil in Brussels (sand and clay). Details are given of the erection of the mud walls, of the super structure slab and in-between levels. Compressed air was used, and the method of calculating the rate of flow of the necessary compressed air is outlined. Details are given of the various preliminary tests conducted before the beginning of the works and those during construction.

• Corporate Authors:

  AGRA

  Rue Saint-Bernard 11
  Brussels, Brabant,   Belgium 
• Authors:
  • Hulet, F
• Publication Date: 1980-4

Language

• French

Media Info

• Features: Figures; Photos;
• Pagination: p. 1-27
• Serial:
  • Excavator
  • Issue Number: 436
  • Publisher: Association Graphique et Artistique

Subject/Index Terms

• TRT Terms: Arches; Calculation; Central business districts; Clay; Compressed air; Construction; Construction management; Drainage; Drawdown (Hydraulics); Flow; Forming; Hydrologic phenomena; Lowering; Piezometers; Pumps; Sand; Slabs; Subways; Support piles; Technology; Tests; Traffic; Tunneling; Tunnels; Underwater tunnels; Water table
• Uncontrolled Terms: Molds (Forms)
• Geographic Terms: Belgium
• Old TRIS Terms: Subway construction; Tunnel excavation
• ITRD Terms: 3373: Arch (structural); 6464: Calculation; 4177: Clay; 3814: Compressed air; 3628: Construction site; 4323: Discharge (flow); 2937: Drainage; 4395: Lowering (water table); 6212: Mould; 6107: Piezometer; 3399: Pile; 3833: Pumping; 4105: Sand; 3491: Slab; 6255: Test; 311: Town centre; 755: Traffic; 3374: Tunnel; 1191: Underground railway; 4394: Water table
• Subject Areas: Bridges and other structures; Construction; Design; Hydraulics and Hydrology; Operations and Traffic Management; Public Transportation; I25: Design of Tunnels; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00325755
• Record Type: Publication
• Source Agency: Centre de Recherches Routieres (CRR)
• Files: ITRD, TRIS
• Created Date: Feb 18 1981 12:00AM