This report describes a concept for hard rock tunneling that uses controlled stress waves to fracture rock. Tests with high explosive charges demonstrated the feasibility of the concept, but follow-on tests with an electrohydraulic stress wave source were unsuccessful. Development of a repeatable stress wave source is necessary to the success of the concept. Extrapolations of test data indicate that the concept could reduce the specific energy requirements for hard rock tunneling by an order of magnitude compared to present tunnel boring machines. (Author)

  • Corporate Authors:

    Naval Construction Battalion Center

    Civil Engineering Laboratory, Point Mugu
    Port Hueneme, CA  United States  93043
  • Authors:
    • Odello, R J
  • Publication Date: 1977-12

Media Info

  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00175859
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CEL-TN-1511
  • Files: TRIS
  • Created Date: Jun 28 1978 12:00AM