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

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