A study was made to compare tunnel construction costs between the Subterrene tunneling system and methods currently in use. Three completed tunnels were selected for study cases to represent finished diameters ranging from 3.05 meters (10 feet) to 6.25 meters (20.5 feet). The study cases were normalized by deleting extraneous work and assigning labor, equipment, and materials costs for the Southern California area in 1974. Detailed cost estimates (shown in Appendix A) were then made for the three tunnels for baseline. A conceptual nuclear powered Subterrene tunneling machine (NSTM) was designed. It was assumed that NSTM's were available for each of the three baseline tunnels. Costs were estimated (shown in Appendix B) for the baseline tunnels driven by NSTM.

  • Supplemental Notes:
    • Paper copy also available in set of 3 reports as PB-244 480-SET, PC$19.00.
  • Corporate Authors:

    Mathews (AA) Incorporated

    11900 Parklawn Drive
    Rockville, MD  United States  20852

    National Science Foundation

    Division of Advanced Technology Applications
    Washington, DC  United States  20550
  • Authors:
    • Bledsoe, J D
    • Hill, J E
    • Coon, R F
  • Publication Date: 1975-5

Media Info

  • Pagination: 100 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00093192
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: 9013 Final Rpt., NSF/RA/T-75-001
  • Contract Numbers: NSF-C840
  • Files: TRIS
  • Created Date: Dec 3 1976 12:00AM