The article describes laboratory measurements of the cutting efficiency of rock cutting tools. The three tools tested were v-face, roundnose chisel in holder, and point attack in holder. The work is part of a project aimed at increasing the excavation rate of mine roadways by boom type tunnelling machines. The study of the three tool shapes indicates that when cutting hard or abrasive rock, tool tip shape is probably not an important factor determining cutting efficiency when measured over the life of the tool. It is concluded that tool type should be selected primarily on longevity and resistance to fracture. /TRRL/

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • HURT, K G
    • Laidlaw, D D
  • Publication Date: 1979-5

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 13-16
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00300131
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Dec 19 1979 12:00AM