WORM-LIKE JACKING SYSTEM PLACES PIPE BENEATH SURFACE

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

• Features: Photos;
• Pagination: p. 49-50
• Serial:
  • Construction Methods and Equipment
  • Volume: 57
  • Issue Number: 3
  • Publisher: McGraw-Hill, Incorporated

Subject/Index Terms

• TRT Terms: Boring; Equipment; Jacks; Pipe; Underground structures
• Uncontrolled Terms: Jacking
• Old TRIS Terms: Underground
• Subject Areas: Bridges and other structures; Construction; Highways;

Filing Info

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