Use of Cookies
By continuing your visit on our website, you consent to the use of cookies.
Further information

We use cookies on different pages to make visits of our website attractive and enable use of certain functions. These are small text files stored on your computer. Most of the cookies we use are deleted again from your hard disk after the end of your browser session (so-called session cookies). Other cookies will remain on your computer and make it possible for us to recognise your computer again at your next visit (so-called permanent cookies). Our partner companies have no right to collect personal information via cookies through our website, to process or use them.


Cut, Core Suck and Repair - Working with National Grid

The Dilemma

  • Gas network repairs took too long
  • Too much disruption to traffic flow and the public
  • Numerous vehicles and machinery are required for completion of daily works
  • High number of operatives required to operate all machinery
  • Open trenches were dangerous to both the workforce and the public
  • Square construction pits are considered too expensive and not cost effective


The challenge

  •   To save both time and money and improve Health & Safety
  •   To carry out these works via a ‘keyhole’ in the road or pavement, as  opposed to an open trench 
  •   To create a complete cost effective , workable solution in one combined vehicle
  •   To complete repairs in less time with less disruption to traffic flow and the  public

The Solution

  • TT-UK worked in close collaboration with National Grid and Hitachi Capital Solutions to design, build and rigorously trial the new vehicle  - Core and Suc
  • Resulting in a fully integrated  vehicle consisting of a Suction Excavator and a TT Coring unit has assisted in cutting, repair and re-instatement times from 5 days to as little as 4 to 5 hours
  • Faster process resulting in cheaper operation and re-instatement costs


The Result

A fully combined vehicle which can cut and open the ground via a keyhole, suck out the spoil and store in an on board container, make the repair, backfill the hole, compact the soil and re-instate leaving a round excavation which is less likely to develop stress fractures.



Further information



Do you have any product or
services related questions?
Please contact us:

+44 (0)1234.342 566
Send E-Mail