PILOT SCALE MACHINE FOR TUNNEL BORING RESEARCH

This report describes the development and design of a pilot- scale boring machine with a 1 m diam head for rock cutting research. The machine has three main uses including the testing of a small number of full-size rock cutting tools, the study of 1/4 to 1/8 scaled model of large arrays of cutting tools, and the development and proving of instrumentation. The cutting head is mounted on a hydraulic motor driven by a variable output pump powered by a 44 kW electric motor. These units and the control gear are assembled on a chassis running on rails.

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Hignett, H J
  • Howard, T R
• Publication Date: 1974

Media Info

• Features: References;
• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Excavation; Rocks; Tunneling; Tunneling machines
• Old TRIS Terms: Excavation technology; Rock tunneling
• Subject Areas: Bridges and other structures; Geotechnology; Railroads;

Filing Info

• Accession Number: 00095279
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: TRRL Rep LR 632
• Files: TRIS
• Created Date: Jul 15 1975 12:00AM