MODERN TUNNELING METHODS SPEED MONTREAL METRO

The method described is to advance a tunnel section on two faces concurrently from a centrally located access shaft. Two gantry-type jumbo drills are used each equipped with five Tamrock hydraulic booms and drills.

• Corporate Authors:

  Southam Business Publications Limited

  1450 Don Mills Road
  Don Mills, ONo,   Canada 
• Publication Date: 1974-3

Media Info

• Serial:
  • Engineering and Contract Record
  • Volume: 87
  • Issue Number: 3
  • Publisher: Southam Business Publications

Subject/Index Terms

• TRT Terms: Rapid transit; Tunneling; Tunnels
• Geographic Terms: Montreal (Canada)
• Subject Areas: Bridges and other structures; Construction; Public Transportation;

Filing Info

• Accession Number: 00057435
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 6 1981 12:00AM