CUTTER WEAR AND ITS INFLUENCE ON TUNNEL BORING MACHINE PERFORMANCE

Cutter wear can influence the performance of full face tunnel boring machines in several ways, including cutter replacements and repair, loss of production time, and reduction of penetration rate. Cutter replacement records from four construction projects are used to investigate patterns and rates of wear. Wear rates are shown to be a function of position on the cutter head and of rock type. Abrasive wear is investigated using cutter disc diameter measurements. The rate of abrasive wear may be predicted using rock index properties such as abrasiveness. (TRRL)

• Supplemental Notes:
  • Report entitled, "Design and Performance of Underground Excavations".
• Corporate Authors:

  British Geological Society

  1-7 George Street
  London,   England 
• Authors:
  • Nelson, P P
  • O'ROURKE, T D
  • Kulhawy, F H
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 239-246

Subject/Index Terms

• TRT Terms: Contracts; Drilling; Economic efficiency; Full face tunneling; Measurement; Physical properties; Repairing; Rocks; Tunneling; Tunneling machines; Tunnels; Wear
• Uncontrolled Terms: Efficiency; Repairs
• Old TRIS Terms: Rock properties
• ITRD Terms: 3871: Drilling; 5911: Efficiency; 3383: Full face tunnelling machine; 6136: Measurement; 3635: Repair; 4154: Rock; 3374: Tunnel; 5293: Wear
• Subject Areas: Administration and Management; Bridges and other structures; Construction; Economics; Geotechnology; Highways; Public Transportation; Vehicles and Equipment; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00399623
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Nov 30 1985 12:00AM