EMPLOYMENT OF PIPEJACK METHOD FOR INSTALLING A CULVERT

A GREATLY INCREASED LENGTH OF CULVERT WAS NEEDED TO ACCOMMODATE A WIDENED FILL ON A HIGHWAY THAT WAS BARELY SUFFICIENT TO PROVIDE A TWO-LANE THOROUGHFARE. THE DIFFICULTY OF DETOURING TRAFFIC RULED OUT OPEN TRENCH EXCAVATION AND SO JACKING A PRECAST PIPE WAS THE METHOD EMPLOYED. JACKING COMMENCED FROM THE DOWNSTREAM END WHERE A NATURAL RIDGE FORMED AN EXCELLENT BACK-STOP. A REINFORCED CONCRETE LAUNCHING PAD WAS USED TO FACILITATE JACKING. JACKS WERE POSITIONED ON THE LAUNCHING PAD AND PRESSURE APPLIED TO THE LOWER ARC OF THE PIPE ONLY. THIS ALLOWED MUCKING OUT TO PROCEED WITHOUT DISTURBING THE JACKS. GREAT DIFFICULTY WAS EXPERIENCED IN SECURING RECUMBENT HYDRAULIC JACKS. TANGYE 15 TON HYDRAULIC JACKS WERE USED BUT LARGER 25 TON JACKS WOULD HAVE SPEEDED OPERATIONS. HOWEVER, CONSTRUCTION BY THE PIPE JACK METHOD FACILITATED CONSTRUCTION AND PERMITTED COMPLETION IN SHORT TIME WITHOUT TRAFFIC INTERFERENCE.

  • Supplemental Notes:
    • No 11, pp 2-5
  • Authors:
    • Neely, W G
    • Kaikoura, M O
  • Publication Date: 1967-8

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  • Accession Number: 00214701
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 28 1994 12:00AM