The International Society for Trenchless Technology

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Total: 13 results found.

1. Pipe Bursting
(Glossary)
Replacement method in which an existing pipe is broken by brittle fracture, using mechanically applied force from within. The pipe fragments are forced into the surrounding ground. At the same time a new ...
2. Pipe Eating
(Glossary)
Replacement method, usually based on microtunnelling, in which a defective pipe is excavated together with the surrounding ground and a new pipe installed. The microtunnelling shield machine will usually ...
3. Pipe Splitting
(Glossary)
Replacement method for breaking an existing pipe by longitudinal splitting. At the same time a new pipe of the same or larger diameter is pulled in behind the splitting tool. ...
4. Rehabilitation
(Glossary)
All measures for restoring or upgrading the performance of existing utility systems including renovation, replacement or repair to overcome problems related to any aspect of performance. ...
5. Replacement
(Glossary)
Construction of a new pipe or underground utility located on or off the line of the existing systems, which serves the same function as the old system.
6. 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 ...
7. Pipe Bursting
(News/Guidelines)
... the exiting alignment to replace a pipe avoids the need to secure additional right-of-way to install the replacement pipe. Bursting and splitting can be used to upsize the pipeline increasing its flow ...
8. Pipe Splitting
(News/Guidelines)
... the exiting alignment to replace a pipe avoids the need to secure additional right-of-way to install the replacement pipe. Bursting and splitting can be used to upsize the pipeline increasing its flow ...
9. Pipe Extraction
(News/Guidelines)
... The rod string is connected to an adapter head. The adapter head, which is larger than the service line, is attached to the replacement pipe. A hydraulic assembly located in the exit pit pulls the rods ...
10. Why Trenchless? ('No-Dig')
(Uncategorised Content)
Trenchless Technology involves the installation, replacement or renewal of underground utilities with minimum excavation and surface disruption. Several construction techniques and methods qualify as trenchless. ...
... networks. For example, entries may address achievements in: Improved economy and competitiveness of trenchless installations; Length and speed of drive for installation, replacement or renovation; ...
12. 2016 ISTT No-Dig Award Winners
(Uncategorised Content)
... The flexibility of the reducible MTBM allows tunneling where an arrival shaft is not feasible, recovery of the machine without excavation, and replacement of bits to better match soil conditions.   ...
13. Past Winners
(Uncategorised Content)
... and pipe felt are offered separately in the pipe itself. Student: John Mathews USA Interactive software for Selection of Technologies for Installation and Replacement of Utilities Academic: ...

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