The International Society for Trenchless Technology

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Total: 9 results found.

1. Localised Repair
(Glossary)
Repair work on a pipe, particularly sewerage, for lengths less than the run between two adjacent access points. ...
Internal cleaning of pipelines, particularly sewers, prior to inspection, usually with water jetting and removal of material where appropriate. ...
3. Pipe Reaming
(News/Guidelines)
Pipe reaming is a trenchless method that removes the host pipe while at the same time installing a new replacement pipe. Pipe reaming can be used to replace a number of types of existing pipes and is particularly ...
4. Leak Detection
(News/Guidelines)
...  A second in-pipe system uses a free swimming sensor to locate leaks and gas pockets. The free swimming sensor system can cover long distances in a single deployment and is particularly well suited ...
5. Why Trenchless? ('No-Dig')
(Uncategorised Content)
... and fiber optics. Trenchless Technologies are a particularly attractive construction options in urbanized area with heavy vehicular and pedestrian traffic and numerous existing underground utilities. ...
6. 2012 ISTT No-Dig Award Winners
(Uncategorised Content)
... was particularly challenging given the complex geological and hydrogeological conditions of the tunnel location. The study results validated the project team's selection of a pipe roofing arch using microtunneling ...
7. 2014 ISTT No-Dig Award Winners
(Uncategorised Content)
...  One section was particularly challenging due to a series of obstacles located along the path of the pipeline. These obstacles made use of traditional HDD unfeasible. Visser&SmitHanab proposed ...
8. 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 ...
9. Past Winners
(Uncategorised Content)
... parameters* The paper deals with the ecological assessment of TT, linking up with the earlier results particularly the graduating thesis by Tomas Kubat. Academic: Dr. Hideki Shimada (Kyushu ...

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