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17.11.2010
New methods for trenchless renewals and replacement of property connections
TT-UK have recently been exhibiting their products for trenchless renewal and new pipe installations, as well as house and commercial property service connections at the recent No-Dig Live Exhibition in Coventry, UK and International No-Dig Singapore.
With the new additional device BURSTFORM working in combination with a GRUNDOBURST 400S with advanced technology flexible QuickLock rods, it is now possible to pull in HDPE long pipe lengths via a reversion shaft (diameter ≥ 1000 mm) into the old pipe channel.


The special feature is the small cross-sectional pipe diameter loss due to the new pipes being pulled in close tight-in-pipe (TIP) inside the old pipe wall.  Another advantage being the reduction of civil engineering costs as a launch pit excavation is not required.

Burstform_ManholeDevice in Manhole

Burstform: The HD-PE pipe is ovally shaped thanks to the Burstform flexible QuickLock rods allowing the pipe to be pulled down through a one meter manhole prior to re-rounding and TIP insertion. 

Schematic Illustration Burstform.jpg
The latest technology level is the on-line replacement of old pipes with the GRUNDOBURST pipe bursting method, where leaking and worn out pressure or sewage pipes are replaced by size for size or with even larger new pipes allowing for increased hydraulic flow capacity allowing for even more property connections to be added to the existing infrastructure.


Also on display was the GRUNDOPULL, which can be applied to pull out potable water property connections made of lead and replace them with new PE pipes.

The GRUNDOBORE 200/400 Steered Auger boring method is an underground pipe installation technology, making highly accurate pipe installations possible, such as required under railway tracks or beneath canals for Trenchless installation of both product and protection pipes. 

Grundobores200S_Manhole
GRUNDOBORE 200 steered auger working from within a one metre manhole


TT also has a new solution for renewing property connections with the GRUNDOMAT soil displacement hammers from the building direct to the manhole. Alternatively, the steerable GRUNDOPIT mini directional bore rig can operate from within a confined space excavation or manhole to install pressure and drainage pipes and cables for buildings and properties in elevated or low lying areas where the service connections can be quickly and precisely installed beneath gardens, terraces, brick-work and other valuable ground surfaces. 
 

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Source: www.tracto-technik.com
Site printed: Jul 29, 2014