The International Society for Trenchless Technology

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Total: 15 results found.

1. Adapter Ring
(Glossary)
A fabricated ring, usually made from steel, that serves to mate the microtunneling machine to the first pipe section. The purpose of the adapter ring is to create a waterproof seal between the machine ...
2. Pilot Bore
(Glossary)
First, usually steerable, pass of any boring operation which later requires back-reaming or other enlargement. Most commonly applied to guided drilling, directional drilling and 2-pass microtunnelling ...
3. Close-Fit Slip Lining
(News/Guidelines)
... techniques are normally applied to relatively thick-walled (i.e., structural) thermoplastic pipes, owing to the relatively high processing forces they impose on the pipe. In the first case, the thermoplastic ...
4. Gold Medal History
(Pages/Generic)
... the No-Digs from their inception in 1985. He pioneered the use of trenchless in Japan. He later became the first President of the ISTT in November 1998 until his retirement from active duties in September ...
5. Cement mortar Liner
(News/Guidelines)
... mortar provides two benefits. First and foremost, cement mortar linings are highly alkaline and protect the host pipe against metallic corrosion. In addition, the relatively smooth internal surface of ...
6. Flood Grouting
(News/Guidelines)
... plugs. The sewer is filled with the first of two chemical solutions from a manhole or access point. Hydrostatic pressure forces the solution into the soil surrounding the sewer at defect points. The first ...
7. Localized Sealing
(News/Guidelines)
... to line the main at the connection. Seals may extend a short length into the lateral, up to the first joint, or extend further into the lateral above the ground water line. Some main/lateral seals also ...
8. Photo Book
(News/News head home)
... trenchless. Limited print, first come first served  ...
Entry for No-Dig Award 2017 is closed. We will be announcing the call for 2018 award in the first quarter of 2018.  Thank you! ISTT team ============ Any award application must be for trenchless ...
10. ISTT International NO-DIGS
(Uncategorised Content)
... provides No-Dig attendees an opportunity to see first-hand the latest the industry has to offer and to learn about the application and operations of wide variety of trenchless products and services directly ...
11. Lifetime Service Award
(Uncategorised Content)
... in the Czech Republic. Mr. Drabek is the first to receive this award, which is given to a retired affiliated society member who has been instrumental in the formation of the society and in the promotion ...
12. 2012 ISTT No-Dig Award Winners
(Uncategorised Content)
... team to undertake the first-ever US national study to assess the long-term performance of cured-in-place pipes (CIPP) that had been installed up to 25 years ago and investigate overseas experience. Samples ...
13. 2015 ISTT No-Dig Award Winners
(Uncategorised Content)
... and (4) the weight and size of the liner material to be installed.   The first liner proved particularly challenging to install. The inversion had to be done so that the liner taper fit exactly in ...
14. Past Winners
(Uncategorised Content)
... the first tidal marine electrical turbine in Western Europe with a high voltage cable to the national supply network.Strangford Lough Marine Turbine Cable was completed to time, cost and  in ...
... the global reach of trenchless. Limited print, first come first served     Photo Book Price (Includes shipping cost): ISTT Members: $60.00 USD Non-Members: ...

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