Pipe bursting is a trenchless sewer replacement method where a large cone shape head is hydraulically pulled by steel cable through the old sewer line, breaking apart the old pipe underground while at the same time pulling into place a seamless HDPE pipe that is the same size or larger than the old pipe.
There are five key pieces of equipment used in a pipe bursting operation: the expander head, pulling rods, a pulling machine, a retaining device, and a hydraulic power pack.
Today’s expander heads have a leading end much smaller in diameter than the trailing (bursting) end, small enough to fit through the pipe that will be replaced. The smaller leading end is designed to guide the expander head through the existing pipe; earlier models did not have this feature and lost course at times, resulting in incomplete pipe bursts and project failures.
The transition from the leading end to the trailing end can include “fins” that make first contact with the existing pipe. Using these fins as the primary breaking point is a very effective way to ensure that the pipe is broken along the entire circumference.
A machine is set in the receiving pit to pull the expander head and new pipe into the line. The head is pulled by heavy, interlocking links that form a chain. Each link weighs several hundred pounds.
All of the equipment used in a pipe bursting operation is powered by one or multiple hydraulic power generators.
Check out this short video on how Pipe Bursting works:
For more information on pipe bursting and how we can solve your sewer problem call Gold Star Plumbing in Anaheim, CA at 714-624-2546 or visit www.gsplumbingservice.com.
Gold Star Plumbing of Anaheim, CA also proudly serves Orange, Santa Ana, Tustin, and surrounding areas.