TUNNEL SITE INVESTIGATIONS AND GEOLOGIC FACTORS AFFECTING MECHANICAL EXCAVATION METHODS

MAJOR EFFORTS ARE BEING MADE BY THE BUREAU OF RECLAMATION TO IMPROVE INVESTIGATION TECHNIQUES, DESIGN OF UNDERGROUUND STRUCTURES, AND CONSTRUCTION PROCEDURES ASSOCIATED WITH THE RAPIDLY GROWING MECHANICAL METHODS OF TUNNEL EXCAVATION. THE IMPACT OF RAPID EXCAVATION ON ENGINEERING GEOLOGIC INVESTIGATIONS AND THE MAJOR REQUIREMENTS OF THE BUREAU OF RECLAMATION NOW BEING EVOLVED ARE DISCUSSED. PRINCIPAL ATTENTION IS GIVEN TO EFFORTS TO IMPROVE ENGINEERING GEOLOGIC INVESTIGATION TECHNIQUES TO MEET THE DEMANDS OF MECHANICAL TUENNEL EXCAVATION BY DEVELOPMENT IN AREAS SUCH AS GEOPHYSICS, COMPUTER STORAGE AND ANALYSIS OF GEOLOGIC DATA, RESEARCH ON DRILLABILITY INDEXING, AND AERIAL REMOTE SENSING. THE PAPER BRIEFLY DISCUSSES THE APPLICATION OF GEOLOGIC DATA INVOLVING THE DEVELOPMENT OF QUANTITATIVE VALUES, THE APPORTIONING OF THESE VALUES, AND THEIR PROJECTION TO DEFINE SUCCESSIVE REACHES OF ROCK QUALITY AND GEOLOGIC UNIFORMITY AT TUNNEL GRADE. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1970/339/339-004.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Soil and Rock Properties and presented at the 49th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Irwin, William H
  • Logan, Malcolm H
  • Klein, Ira E
• Conference:
  • 49th Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1970-1-12 to 1970-1-16
• Publication Date: 1970

Media Info

• Media Type: Print
• Features: Figures;
• Pagination: pp 34-41
• Monograph Title: Symposium: rapid excavation
• Serial:
  • Highway Research Record
  • Issue Number: 339
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aerial photography; Data storage; Drilling; Engineering geology; Geological surveying; Geophysics; Information processing; Information retrieval; Location; Photointerpretation; Rock jointing; Tunnels
• Uncontrolled Terms: Building sites
• Old TRIS Terms: Air photointerpretation; Drilling methods; Geologic investigations; Jointing of rock
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00215389
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jun 11 1971 12:00AM