The International Society for Trenchless Technology

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Total: 8 results found.

1. Locator
(Glossary)
... underground services which have been energised. Sometimes referred to as a Walkover System. ...
... to accept the product - about 1.5 times the size of the product - the product is attached to the drill string with a pulling head and swivel, and pulled back to the rig. Like drill bits reamers are designed ...
3. Close-Fit Slip Lining
(News/Guidelines)
... of large diameter pipe up to 1,500 mm. Cold-folded liners are pulled into the host pipe where they are reverted by pressurization with cold water to a pressure of 1.5 times the working pressure of the ...
4. Gold Medal History
(Pages/Generic)
ISTT recognizes individuals who are judged to have made an outstanding and exceptional individual contribution to trenchless technology. This special award has been presented only five times in the 25-year ...
5. Vacuum Excavation Potholing
(News/Guidelines)
... vacuums may be used to remove spoils associated with directional drilling and tunneling operations. In addition, vacuums are sometimes used to support hand tunneling and auger boring operations where the ...
6. Potholing
(News/Guidelines)
... vacuums may be used to remove spoils associated with directional drilling and tunneling operations. In addition, vacuums are sometimes used to support hand tunneling and auger boring operations where the ...
7. Potholing for Local Repair
(News/Guidelines)
... vacuums may be used to remove spoils associated with directional drilling and tunneling operations. In addition, vacuums are sometimes used to support hand tunneling and auger boring operations where the ...
8. Awards and Recognition
(Uncategorised Content)
... who are judged to have made an outstanding and exceptional individual contribution to trenchless technology. This special award has been presented only five times in the 25-year history of ISTT. Click ...

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