Soil displacement is a method for underground pipe installation which has been established for the last three decades and has a number of distinct advantages over traditional methods in cost, time and safety.
A displacement hammer, driven by pneumatics, creates a cavity underground, ready for pulling in short or long pipes made of plastic (PE, PVC or PE-X) and metal, also any type of cable in drill lengths up to 40 m (depending on the soil quality), either simultaneously or in a second working step.
This allows trenchless traffic route crossings, private service line installations, the preparation of anchoring, by-passing obstacles and supporting further measures as is seen below:
The obvious advantages to this system is the minimal surface disruption required to deploy the 'mole' which both reduces the costs involved in any particular project - costly repair and replacement of surface installations are not required - makes the work of replacing and repairing underground pipework a swifter process - no major earthworks are required or in-filling post-pipework.