PNEUMATIC-HYDRAULIC MATERIAL TRANSPORT SYSTEM FOR THE RAPID EXCAVATION OF MACHINE-BORED TUNNELS

In the long run, rapid excavation involving large tonnages can best be accomplished by integrated continuous systems. Such systems show promise of being inherently safer and more amenable to automation than existing conventional haulage systems. The concept of a pneumatic-hydraulic pipelines as a rapid excavation system, evaluated on a cost-performance basis appears to be technically and economically feasible. A system analysis approach to rapid excavation by pipeline can be achieved with the aid of a digital computer. With reasonable cost-performance data for commercially available equipment, a powerful analytical tool can be created to aid in the evaluation of rapid excavation systems. Further analyses are in progress to evaluate the effect of particle size and distribution on crushing costs, pipelining costs, and dewatering costs for the various alternate systems.

  • Authors:
    • Faddick, R R
    • Martin, J W
  • Publication Date: 1974-6

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Filing Info

  • Accession Number: 00095269
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 15 1975 12:00AM