STUDY OF HYDRAULIC JET KERFING TO IMPROVE THE EFFICIENCY OF MECHANICAL DISC CUTTING

Laboratory testing was performed exploring the parameters involved in water jet assisted mechanical rock cutting. The high pressure water jet is traversed over the rock surface cutting very narrow kerfs. The trailing disc cutter then benefits from an apparent fractured surface. Experiments were performed on different hard rock types, with different spacings, penetrations and patterns. The water jet assisted cutter is definitely more effective in removing rock than the mechanical cutter or jet alone.

• Corporate Authors:

  Colorado School of Mines

  Excavation Engineering and Earth Mechanics Institute
  Golden, CO  United States  80401

  Department of Transportation

  Office of the Secretary of Transportation, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Wang, F D
  • Wolgamott, J
• Publication Date: 1976-1

Media Info

• Pagination: 79 p.

Subject/Index Terms

• TRT Terms: Cutting; Cutting tools; Excavation and tunneling; Feasibility analysis; Fracture mechanics; Hydraulic equipment; Hydraulic jetting; Laboratory tests; Measures of effectiveness; Pendulum tests; Rock excavation; Rocks; Spacing; Waterjets
• Uncontrolled Terms: Effectiveness; Fracture; Hydraulic machinery
• Old TRIS Terms: Disks; Hydraulic jets; Kerfing
• Subject Areas: Construction; Geotechnology; Highways; Maintenance and Preservation; Vehicles and Equipment;

Filing Info

• Accession Number: 00151811
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DOT/TST-76/54
• Contract Numbers: DOT-OS-40102
• Files: NTIS, TRIS, USDOT
• Created Date: May 11 1977 12:00AM