Design and Development of a Conical boring Device to Enlarge a Pilot Hole through Rock

Abstract

The report summarizes effort to design and develop a conical, self- advancing and self-rotating boring machine. The conical borer will use a proven and energy effective mechanical fragmentation system - roller cutters - and will operate as a reaming device to enlarge an existing 8 3/4 inch pilot hole to a final 38 inch bore.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1972
Accession Number
AD0751565

Entities

People

  • Dikrun Dermarderosian
  • Hans A. Hug

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Air Flow
  • Air Supplies
  • Compressed Air
  • Compressors
  • Diameters
  • Excavation
  • Fabrication
  • Flow Rate
  • Geometry
  • High Pressure
  • Mechanics
  • Models
  • Prototypes
  • Rapid Excavation
  • Rock Mechanics
  • Simulations
  • Test Facilities

Readers

  • Manufacturing Engineering.
  • Software Engineering