Installation Methods
Pipe Bursting of New Englandsm
carefully
reviews each potential pipe bursting application employing equipment
suppliers, pipe vendors, and others to ensure the right installation
method, appropriate equipment, and proper pipe material are used for the specific
needs at hand. We employ two categories of pipe installation for
most applications – pneumatic
and static.
Pneumatic Pipe
Bursting
Above and below: Breaking
and expanding old pipe as new pipe is inserted.
During
the pneumatic method of pipe bursting, a steel cable is placed in the
existing pipe from the receiving manhole/pit to the insertion pit. The
pneumatic tool, expander, and new pipe are placed in the insertion pit and
connected to the end of the cable. The combination of the assembly
being guided and pulled back through the pipe and the percussion from the
pneumatic tool fractures the host pipe into the surrounding soil as the
new pipe is simultaneously pulled into place.
Reversible
pneumatic tool methods eliminate one pit.
Step One
Step Two
Step Three
The static method of pipe bursting (or splitting)
utilizes segmented steel rods that are placed in the existing pipe from
the receiving manhole/pit to the insertion pit. The end of the rod is
connected to the bladed cutting rollers, expander, and new pipe.
As the assembly is pulled back through the pipe the roller blades split
the pipe, then the expander displaces the host pipe into the surrounding
soil as the new pipe is simultaneously pulled into place.
Artwork
courtesy of TT Technologies, Inc.; all rights reserved to TT
