HARD ROCK TUNNELING SYSTEM EVALUATION AND COMPUTER SIMULATION

IT IS SHOWN THAT TUNNELING IS THE MAJOR PART OF MILITARY AND CIVIL DEFENSE PROJECTS SPECIFYING UNDERGROUND FACILITIES. TH FACTORS WHICH AFFECT THE DESIGN AND PERFORMANCE OF AN EXCAVATION SYSTEM ARE DISCUSSED. GEOLOGICAL PREDICTION TECHNIQUES AND RESEARCH ARE SURVEYED TO IDENTIFY AREAS FOR IMPROVEMENT. AN APPROACH TO MODELING THE TUNNELING PROCESS IS DEVELOPED; THIS FORMULATES A MODULAR STRUCTURE OF A COMPUTER SIMULATION TO REPRESENT ANY ONE OF MANY EXCAVATION SYSTEM POSSIBILITIES. THE FIRST SET OF MATHEMATICAL RELATIONSHIPS, WHICH MODEL ROCK FRAGMENTATION BY BORING MACHINE, DRILL-AND-BLAST, PELLET IMPACT, AND WATER JET, ARE DERIVED. /AUTHOR/

• Corporate Authors:

  General Research Corp, Arlington

  ,    
• Authors:
  • Hibbard, R R
  • Hyman, D S
  • Murphy, F H
  • Pietrzak, L M
  • Rubens, S R
• Publication Date: 1971-9

Media Info

• Pagination: 154 p.

Subject/Index Terms

• TRT Terms: Boring; Drilling; Excavation and tunneling; Mathematical models; Pellets; Presplitting (Blasting); Rock excavation; Rock mechanics; Simulation; Underground structures; Waterjets
• Old TRIS Terms: Pelleting
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00215579
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: GRC-CR-1-190
• Files: TRIS
• Created Date: May 21 1973 12:00AM