MECHANIZED TUNNELLING--PROGRESS AND EXPECTATIONS. THE TWELFTH SIR JULIUS WERNHER MEMORIAL LECTURE OF THE INSTITUTION OF MINING AND METALLURGY

Problems to be faced in the mechanization of underground excavation and support are outlined. The development of machinery for boring in hard rock is described. Improved design of cutters has increased penetration rates in hard rocks, increased cutter life and reduced costs. Research on the use of high pressure water jets and of high-energy impact hammer breakers for boring in hard rock is described. Problems of tunnelling in soft ground and possible solutions are discussed. Development of fluid pressure support of the tunnel face is outlined. /TRRL/

  • Corporate Authors:

    Institution of Mining & Metallurgy

    44 Portland Place
    London W1N 4BR,   England 
  • Authors:
    • Robbins, R J
  • Publication Date: 1976-3-1

Media Info

  • Features: Figures; Photos;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00137697
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 17 1976 12:00AM