A boring jacking system is described which is capable of pushing either relatively small or large diameter pipe accurately through long horizontal underground distances, and installing 1,600 ft of 36-in-dia, 4-in-wall concrete pipe 60 to 70 ft beneath I 35W in Minnesota. The system is essentially a series of intermediate jacking rings that advance groups of 6-ft long pipe sections independently of leading or trailing portions. The earthworm-like movement of pipe is accomplished by a successions fo expansions and contractions of the intermediate jacking rings. Details are given of the equipment ( a 5-component boring machine powered by a 40-hp electric motor was used) and the operation of the process.

  • Corporate Authors:

    McGraw-Hill, Incorporated

    330 West 42nd Street
    New York, NY  United States  10036
  • Publication Date: 1975-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096477
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM