Pipe Jacking

A system of using hydraulic jacking from a drive shaft to directly install pipes behind a shield machine so that they form a continuous string in the ground.

Pipe Joint Sealing

A method of sealing leaking or defective pipe joints which permit infiltration of groundwater into sewers by means of injecting chemical grout into and/or through the joints from within the pipe.

Pipe Lubricant

See LubricationThe act of injecting a fluid, normally bentonite and/or polymers, to reduce the skin friction and jacking forces on the jacking pipe during installation. The fluid fills the annular space..

Pipe Pulling

Method of replacing small diameter pipes where a new product pipe is attached to the existing pipe which is then pulled out of the ground.

Pipe Pusher

A machine that pushes or pulls a rod or pipe to produce a bore by means of compaction without rotation or impact.