OIL DRILLS ADAPT TO BUILDING TIE-BACK WALLS REQUIRE FAST DRILLING OF 500 SPECIAL HOLES

OIL DRILLING TECHNIQUES ARE BEING USED FOR HIGH SPEED ANCHORAGE OF TIE-BACKS IN A MONTREAL COMMERCIAL SITE EXCAVATION. THE DRILL RIGS ARE MOUNTED ON TRUCKS SO THE HOLES CAN BORED AT A 45 DEGREE ANGLE /BY TILTING THE BACK OF THE TRUCK/ AND THE VEHICLES CAN MOVE QUICKLY FROM HOLE TO HOLE. THE CORE IS DRIVEN UP THROUGH THE CENTER HOLE PNEUMATICALLY.

  • Supplemental Notes:
    • Vol 78,no 12,PP 59-62, 6 PHOT
  • Authors:
    • Caplan, B
  • Publication Date: 1965-12

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Filing Info

  • Accession Number: 00214703
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 15 1994 12:00AM