Pipe bursting is a trenchless method of replacing buried pipelines (such as sewer or water pipes) without the need for a traditional construction trench. “Launching and receiving pits” replace the trench needed by conventional pipe-laying.
HOW DOES IT WORK?
A strong cable is strung from one end of the pipe to the other. Attached to the cable is a ‘pipe bursting head’. A strong winch at the other end pulls the pipe bursting head with the new pipe behind it through the old pipe. During this process, the pipe breaks and replaces the old pipe with the new one (see image).
Any pipe can be replaced with pipe bursting, which is not always the case for other trenchless services. In addition, the diameter of the new pipe can be larger than that of the old pipe, increasing flow if desired. This new pipe is stronger than most pipe lining options.