SOME METHODS OF TEST AND SURVEY FOR ESTIMATING THE MACHINEABILITY OF ROCKS IN EXCAVATION BY ROCK TUNNELING MACHINES

For the purpose of determining the applicability of Rock Tunnelling Machines and estimating the proceeding rate of excavation by the machines and cutter life, several new simple quick tests using boring core were carried out to determine the machinability of the rocks. The measured values in the tests were compared with the experienced machineability which had been determined from the results of excavation so far by the machines. It is proved that a good agreement exists between them and in future we will be able to estimate the machineability of rocks easily prior to construction. (Author)

  • Availability:
  • Corporate Authors:

    JAPANESE NATIONAL RAILWAYS

    TOKYO,   Japan 
  • Authors:
    • Misawa, S
    • SAKURAI, T
    • TAKAHASHI, A
  • Publication Date: 1972-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00043508
  • Record Type: Publication
  • Source Agency: Railway Technical Research Institute
  • Files: TRIS
  • Created Date: Apr 27 1974 12:00AM