Trenchless technologies are methods, materials and equipment for the installation, replacement, relocation, diagnosis, location, renovation and rehabilitation of underground utilities with minimal excavation and surface disruption. Trenchless technologies have been successfully used for all underground utilities from water, sewer, stormwater, gas, industrial pipelines, electrical and communications conduits.
Trenchless Technologies Guidelines
Location
- GPR - Underground Penetrating Radar
- Caving
- Smoke and dyes
Diagnostics
- CCTV - Closed Circuit Television
- Leak Detection
New Installations
- Horizontal Directional Drilling (HDD)
- Pipe Jacking (Microtunnel)
- Auger Boring
- Pipe Ramming
- Impact Moling
- Pilot Tube
Rehabilitation - Renovation
- CML (Cement Mortar Lining)
- PU (Epoxy and Polyurethane Lining)
- Close-Fit Slip Lining
- Spiral Lining in PE or PVC
- Cured-in-place Lining (CIPP)
Rehabilitation - Replacement
- Slip Lining
- Pipe Bursting Cracking
- Pipe Reaming
- Pipe Extraction
Rehabilitation - Repair
- Joint Grouting
- Localized Sealing
- Spiral Wound Liner
Trenchless Technologies Guides - ISTT: https://www.istt.com/index/guidelines
