A WEALTH OF EXPERIENCE
IMPACT MOLING USING GRUNDOMAT
METHOD
The pneumatically driven soil displacement hammer displaces the soil creating a void into which socket-less short or long pipes up to OD 160 made of plastic (PE, PVC or PE-X) or cables depending on the soil type up to 25 m lengths are pulled, either immediately or subsequently. This enables crossing of traffic ways and production of house connections for gas water, etc. right on target and completely without trenches.
Case study
GRUNDOMAT FLIES UNDER NOT OVER HANGER 61 AT LONDON LUTON AIRPORT!
We were approached by a contractor working at London Luton Airport who had a major delema. They required a duct to be installed beneath the hanger maintenance apron by means of a No-Dig method "this meant that using open trenching techniques was definitely not an option as the concrete apron had to be kept clear of obstructions at all times due to continuous aircraft movement”.
We used a GRUNDOMAT 130 soil displacement hammer which was the only mole available that would be able to penetrate and bore accurately through the existing engineering brick manhole. Even though the bore distance was relatively short at 9 metres, the accuracy required to break through the centre of the manhole was critical.
The application once again proved the unique accuracy and required precision of the GRUNDOMAT. The duration of the bore and direct installation of the cable duct was completed in just two hours to the satisfaction of the customer and the Airport.
The video below shows the GRUNDOMAT arriving exactly on target at the pre-determined point in the manhole.
Moling Sighting up the bore profile
Grundomat entering the ground under control
Monitering the progress of the bore
