The author surveys the various methods of rock disintegration at present being studied in research laboratories throughout the world. Many methods have been proposed including jet piercing, fusion, electronic heating, pressure waves from spark discharges, ultrasonics, laser techniques, plasma rays and water jets. He suggests that there will be no completely new and revolutionary principle for tunnelling and an evolution of current equipment is more likely. The penetration rate of drills has greatly increased since 1920. Greater automation is forecast to aid with the moving and aligning of drilling booms. Similarly, the equipment for charging explosives, scaling and spraying concrete could be automated and remotely controlled. The continuous working method of full-face boring machines can also be automated, provided tool lives are adequate. Even when an operator is necessary, he could be installed in a protected, air conditioned cab. Remote control will also have increased applications in loading work. The operation of large diesel powered rubber-tyred loaders could be electronically controlled and supervised from a central control room. The control installation would be similar to that of a modern underground transit system. Eventually very few personnel will be required in the drift or tunnel. (TRRL)

  • Corporate Authors:

    Northwood Publications Limited

    Elm House, Elm Street
    London NC1X 0BP,   England 
  • Authors:
    • Holdo, J
  • Publication Date: 1980-5

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 57
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00319694
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Feb 6 1981 12:00AM