The International Society for Trenchless Technology
Glossary
There are 211 entries in this glossary.| Term | Definition |
|---|---|
| Uncased bore |
Any bore without a lining or pipe inserted, i.e., self-supporting, whether temporary or permanent. |
| Upsizing |
Any method that increases the cross-sectional area of an existing pipeline by replacing it with a larger diameter pipe. |
| Utility Corridor |
Duct in which two or more different utility services are installed with access for maintenance. Also referred to as a Common Utility Tunnel, Common Duct or Utilidor. |
Search for Trenchless Events
Thematic words
trenchless technology involves installation replacement renewal underground utilities minimum excavation surface disruption several construction techniques methods details technologies successfully water sewer industrial pipelines electrical conduit fiber optics particularly attractive option urbanized heavy pedestrian traffic numerous existing crossing roadways other transportation corridors rivers waterways install rehab replace located environmentally sensitive areas