DESIGN AND DEVELOPMENT OF PROTOTYPE UNIVERSAL EXTRUDING SUBTERRENE PENETRATORS

The design features and development tests of electrically heated rock-melting universal extruding SUBTERRENE prototype penetrators are described. Engineering drawings of the successful 58-mm-(2.3-in.)-diam refractory metal penetrator system are presented. These prototype penetrators have melted holes in laboratory samples of basalt, granite, and low-density tuff. The rock-melt debris, or cuttings, can be extruded in a variety of forms including glass rods, glass pellets, and rock wool. These cuttings are removed by the coolant through the annular stem in a manner similar to that used in rotary drilling technology. /AUTHOR/

• Supplemental Notes:
  • Report sponsored by the National Science Foundation and the U.S. Atomic Energy Commission.
• Corporate Authors:

  Los Alamos National Laboratory

  P.O. Box 1663
  Los Alamos, NM  United States  87545
• Authors:
  • Neudecker, J W
  • Giger, A J
  • Armstrong, P E
• Publication Date: 1973-3

Media Info

• Features: Figures; Tables;
• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Design; Equipment; Excavating equipment; Excavation and tunneling; Extrusion; Melting; Pendulum tests; Prototypes; Rock excavation
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00126352
• Record Type: Publication
• Report/Paper Numbers: LA-5205-MS
• Contract Numbers: W-7405-ENG.36
• Files: TRIS
• Created Date: Apr 21 1976 12:00AM