MEASUREMENTS OF FULL-FACE TUNNELING MACHINES

Present status of research work: The successful preliminary lab tests on the data logging and transmission unit as developed by Bergbau-Forschung GmbH and designed to collect important equipment parameters needed to improve the full-facers in service, were not able to stand the rough underground conditions. 2. Justification and objectives of the research work: The objective of the work was to economically use the advantages of a concept of mechanized roadhead drivage system for a wide application range. The difficulties emerged could be identified only by systematic investigation; it was impossible to adequately cope with the disturbances with the technical means then available. 3. Method: Systematic logging of the entire drilling cycle, analysis of the problem points according to the work program. 4. Results: It was for the first time possible to log load distributions at the rotating drilling head of selected disc cutter tools during fully automated underground roadheading operations of a 6.0 m diameter full-facer. Weak points were identified. The data transmission and evaluation system needs further improvement to enable faster and more accurate instructions leading to an optimization of drivage operations. 5. Conclusions/possible applications: The process enables to transmit, store, record, and evaluate all the important equipment parameters. It will be possible to develop an early warning--and monitoring system which can supply correct information on both the condition at the heading as well as on the wear condition of the disc cutters. A prerequisite for such development are precise preliminary experiments using appropriate measuring transducers.

• Supplemental Notes:
  • Portions of document are illegible.
• Corporate Authors:

  Bundesministerium fuer Forschung und Technologie

  Stresemannstrasse 2, Postfach 200706
  Bonn 2,   Germany 
• Authors:
  • Wehrmann, W
• Publication Date: 1982

Language

• German

Media Info

• Pagination: 129 p.

Subject/Index Terms

• TRT Terms: Cutting tools; Data collection; Instrumentation; Rock drilling; Technology; Tunneling machines
• Geographic Terms: Germany
• Old TRIS Terms: Cutters
• Subject Areas: Construction; Public Transportation;

Filing Info

• Accession Number: 00378632
• Record Type: Publication
• Report/Paper Numbers: BMFT-FB-T-82-121
• Files: TRIS
• Created Date: Oct 30 1983 12:00AM