Pipe Ramming
1350mm Steel Culvet being installed under tracks
Neptune has applied this system to install casing up to 1800mm in diameter in very challenging soil conditions (i.e. wet flowing sand, cobbles, boulders, pitrun)
As with case boring, this technique is typically used to install steel casings beneath railways, roadways, pipeline right-of-ways, buried utilities, or in cases where open excavation is either not feasible or economical.
A pneumatic pipe hammer is attached to a steel casing and, using compressed air to drive the hammer’s piston, rams the casing into place; spoil is removed from the casing by augering, water washing or compressed air.
Main applications include:
- Installing steel storm water culverts
- Installing steel sleeves into which utilities can be placed (i.e. water, sewer, gas, etc.)
Can be use to install 300m to 2400mm over distances of up to 150m
- Although not as accurate as other guided boring techniques, this technology is normally used to overcome difficult soil conditions