USE OF ELECTRON BEAM GUN FOR HARD ROCK EXCAVATION

A 36 KW ELECTRON BEAM GUN IS BEING READIED FOR FIELD TEST. A DESIGN HAS BEEN DEVELOPED FOR THE GUN SUPPORT OR CARRIAGE, AND PRELIMINARY FABRICATION HAS STARTED THE LOGAN QUARRY IN AROMAS, CALIFORNIA, HAS BEEN TENTATIVELY SELECTED AS THE FIELD TEST SITE. A MATHEMATICAL MODEL THAT CAN DESCRIBE THE PIERCING OF THE ROCK BY THE ELECTRON BEAM AND SUBSEQUENTLY PRODUCED THERMAL STRESSES IS UNDER DEVELOPMENT. LABORATORY TESTS INVOLVING VERTICAL PIERCING WITH A 9 KW GUN HAVE BEEN CONDUCTED IN GABBRO, SANDSTONE, AND QUARTZITE. THE RESULTS ARE IN GOOD AGREEMENT WITH THE PREDICTION OF THE CAVITY MODEL DEVELOPED IN THEORETICAL STUDIES. /AUTHOR/

  • Corporate Authors:

    Westinghouse Electric Corporation

    Westinghouse Building
    Pittsburgh, PA  United States  15222
  • Authors:
    • Nixon, D R
    • Schumacher, B W
  • Publication Date: 1971-4-30

Media Info

  • Pagination: 101 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00236429
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: No R-71-16
  • Files: TRIS
  • Created Date: Jun 12 2002 12:00AM