PRESPLITTING-A CONTROLLED BLASTING TECHNIQUE FOR ROCK CUTS

RESEARCH WAS CONDUCTED ON CONSTRUCTION METHODS OF IMPROVED QUALITY AND LOWER COSTS IN THE HIGHWAY BUILDING OPERATIONS. THE EFFICACY AND ECONOMIC FEASIBILITY OF PRESPLITTING WORK IN HIGHWAY CUT SECTIONS WERE INVESTIGATED, AS WERE DEVELOPMENTS IN BLASTING, SUCH AS DRILL HOLE PATTERNS, DELAY CAPS, CONTROL OF SHOCK WAVE, SMOOTH WALL EXCAVATION TECHNIQUES, NEW TYPES OF EXPLOSIVES AND RESULTS ACHIEVED ON ROAD CONSTRUCTION. A COLLECTION OF CONSTRUCTION SPECIFICATIONS IN USE AND A SERIES OF PHOTOGRAPHS ILLUSTRATING RESULTS ACHIEVED ON SPECIFIC PROJECT APPLICATIONS ARE PRESENTED. THE FINDINGS DEMONSTRATE THAT SIGNIFICANT ADVANTAGES IN QUALITY OF CONSTRUCTION, SAFETY AND MAINTENANCE ARE ATTAINABLE THROUGH APPROPRIATE USE OF CONTROLLED BLASTING TECHNIQUES.

  • Corporate Authors:

    State Highway Departments

    ,    
  • Publication Date: 1967-2

Subject/Index Terms

Filing Info

  • Accession Number: 00214445
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Apr 27 1994 12:00AM