MECHANICAL RESISTANCE OF A ROCK MASS TO BLASTING. APPLICATION TO THE EXCAVATION OF A DAM'S FOUNDATIONS /IN FRENCH/

PRELIMINARY ROCK EXCAVATION WORKS BY BLASTING OFTEN CAUSE LOOSENING IN THE SURROUNDING ROCK, CHARACTERIZED BY A LEVEL OF ACCELERATION OF THE ROCK MASS AND AN OSCILLATION FREQUENCY WHICH CAN RESULT IN TENSILE FAILURE OF THE SURROUNDING TERRAIN OR EXISTING NEIGHBOURING STRUCTURES (OCCURRENCE OF CRACKS OR MICROCRACKS). THIS REPORT STUDIES THESE PHENOMENA AND THEIR RANGE, AND DEFINES A DANGER CRITERION. /TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: p. 243-8

Subject/Index Terms

Filing Info

  • Accession Number: 00232295
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: Jun 19 1973 12:00AM