One of the mysteries of the English language finally explained.
A method of laying underground pipes without digging a trench, in which the pipes are assembled in an access shaft and then pushed into position by a hydraulic jack.
- ‘Pipe jacking is a method of installing a pipe under roadways, railways, runways or highways without using an open cut trench.’
- ‘In the pipe jacking process the pipeline with the heading machine at its tip is driven by hydraulic cylinders from the launch shaft towards the target shaft.’
- ‘At Scott Street, the M1 (including the storm water canal) and Atholl Oaklands Road the pipes will be put in place using a three-part pipe jacking operation.’
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