n IMIESA - Trenchless company acquires 'monster' boring machine : trenchless technology

Volume 36, Issue 4
  • ISSN : 0257-1978
  • Author
  • Source : IMIESA, Volume 36, Issue 4, Apr 2011, p. 71
  • Accreditation : Department of Higher Education and Training (DHET)



Jacked Pipelines, a division of WK Construction, has been part of the South African trenchless society for more than 20 years. The company specialises in pipe jacking, a technique of installing underground pipelines without disturbing surface activities and other underground services. Pipelines that can be installed in this manner range from a minimum of 900 mm-diameter concrete sleeves to 3 000 mm-diameter concrete sleeves and 3 500 mm concrete box culverts. Pipe jacking is mostly done through hand excavation, whereby miners enter the pipe sleeve to form a tunnel underground and advance the concrete pipe sleeve by means of hydraulic jacking of the concrete pipe into the void formed.

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