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Systems and Cost Analysis for a Nuclear Subterrene Tunneling Machine. A Preliminary Study.


LA5354

Publication Date 1973
Personal Author Altseimer, J. H.
Page Count 25
Abstract The basic system components of large rock-melting nuclear subterrene tunneling machines (NSTMs) have been conceptualized and defined for a preliminary tunneling cost estimate and comparison with costs using tunnel-boring machines (TBMs) and other conventional tunneling techniques. Two initial types of NSTMs are considered: Type I, peripheral kerf-melting penetrators plus centrally located rotary cutters for soft ground and rock; and Type 2, kerf-melting penetrators plus multiple, hot rock-fracturing penetrators for very hard rock. Tunneling costs for NSTMs are very clost to those for TBMs, if operating conditions for TBMs are favorable. However, for variable formations and unfavorable conditions such as soft, wet, bouldery ground or very hard rock, the NSTMs are far more effective. Estimates of cost and perecntage use of NSTMs to satisfy U. S. transportation tunnel demands indicate a potential cost savings of 850 million dollars (1969 dollars) through 1990. (Modified author abstract)
Keywords
  • Tunneling machines
  • Nuclear auxiliary power units
  • Nuclear subterrene tunneling machines
  • NSTM(Nuclear Subterrene Tunneling Machines)
Source Agency
  • Atomic Energy Commission
NTIS Subject Category
  • 50C - Construction Equipment, Materials, & Supplies
Corporate Authors Los alamos Scientific Lab., N. Mex.
Document Type Technical Report
Title Note Informal rept.
NTIS Issue Number 197323
Contract Number
  • W-7405-ENG-36
Systems and Cost Analysis for a Nuclear Subterrene Tunneling Machine. A Preliminary Study.
Systems and Cost Analysis for a Nuclear Subterrene Tunneling Machine. A Preliminary Study.
LA5354

  • Tunneling machines
  • Nuclear auxiliary power units
  • Nuclear subterrene tunneling machines
  • NSTM(Nuclear Subterrene Tunneling Machines)
  • Atomic Energy Commission
  • 50C - Construction Equipment, Materials, & Supplies
  • W-7405-ENG-36
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