ROCK EXCAVATION BY DISC CUTTER

Partial factorial experiments have been undertaken to study the effect of changing the principal geometrical variables on the performance of disc cutters operating in both the unrelieved and relieved cutting modes. A simple mathematical model is proposed which, on the evidence of the experimental data, is found to provide a good description of the magnitude and variation of thrust and rolling forces with disc diameter, edge angle and penetration. Further analysis shows the maximum separation between adjacent discs operating in array to be governed by the compressive to shear strength ratio for the rock. An examination of the published results of others in this field supports the belief that the disc model is valid. (A) /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00207624
• Corporate Authors:

  Pergamon Press, Incorporated

  Headington Hill Hall
  Oxford OX30BW,    
• Authors:
  • Raxborough, F F
  • Phillipps, H R
• Publication Date: 1975-12

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 361-362
• Serial:
  • International Journal of Rock Mechanics and Mining Science
  • Volume: 12
  • Issue Number: 12
  • Publisher: Pergamon Press, Incorporated
  • ISSN: 0020-7624

Subject/Index Terms

• TRT Terms: Compressive strength; Construction equipment; Cutting tools; Drilling; Experiments; Improvements; Mathematical models; Pendulum tests; Performance; Ratios; Rock excavation; Rocks; Rolling; Sandstones; Shear strength; Tests; Thrust; Tunnels; Variables
• Uncontrolled Terms: Experimental data
• Old TRIS Terms: Cutters; Disks
• ITRD Terms: 3871: Drilling; 3674: Equipment; 6473: Mathematical model; 4154: Rock; 4104: Sandstone; 6255: Test; 3374: Tunnel
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Vehicles and Equipment; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00134381
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Oct 6 1976 12:00AM