The International Society for Trenchless Technology

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Total: 14 results found.

1. Fluid Assisted
(Glossary)
Method of guided drilling using a combination of mechanical drilling and Boring/Drilling pressurised fluid jets to provide the soil cutting action. ...
2. Jacking Frame
(Glossary)
A structural component that houses the hydraulic cylinders used to propel the microtunneling machine and pipeline. The jacking frame serves to distribute the thrust load to the pipeline and the reaction ...
3. Jacking Shaft
(Glossary)
An excavation from which trenchless technology equipment is launched for the installation or removal of a pipeline, conduit, or cable. May include a thrust wall to spread reaction loads to the ground. ...
4. Reinstatement
(Glossary)
Method of backfilling, compaction and re-surfacing of any excavation to restore the surface and underlying structure to enable it to perform its original function. ...
5. Thrust Wall
(Glossary)
A wall at the rear of the thrust pit designed to spread the reaction loads to the ground behind the thrust pit. ...
6. Pipe Extraction
(Attached to Article: Pipe Extraction)
Pipe Extraction (Filename: pipe-extraction.pdf) | Description:Pipe Extraction ...
7. Spiral Wound Lining PE or PVC
(News/Guidelines)
... located on spools above ground are fed to a winding machine. The winding machine rotates causing the edges of the profile strips to interlock forming a water-tight liner. The rotational action advances ...
8. Pilot Tube
(News/Guidelines)
... created by the pilot tube. The turning action of the auger transports the soils back to the jacking shaft where it is removed. The pilot tubes are advanced by the auger casings into the reception shaft ...
9. Impact Moling
(News/Guidelines)
... a sighting level positioned on the mole. Once the mole is in the desired position, the compressor is activated advancing the mole through the hammering action of the reciprocating head. The chisel-tip ...
10. Pipe Extraction
(News/Guidelines)
... than leave them in the ground. Pipe extraction is a trenchless method, which can remove existing pipes for disposal and replace them with new high density polyurethane (HDPE) or polyurethane (PE) pipes. ...
11. Flood Grouting
(News/Guidelines)
... matrix that binds the soil and consolidates the ground around the defects. After the completion of the reaction of the two chemical solutions, the second solution is pumped out. The sewer is flushed, the ...
12. Leak Detection
(News/Guidelines)
... and the pipe material and diameter. For measurements recorded at the surface, the depth of the soil over the pipe, the soil type and compaction, and the surface coverage also affect the loudness and the ...
13. Awards and Recognition
(Uncategorised Content)
... industry. The application must state the name of the nominee, list relevant professional and educational background, and describe in 1,000 words or less the specific actions and activities of the candidate ...
14. Past Winners
(Uncategorised Content)
... of Victoria (the Otway Basin). MacCormick used a microtunnelling retraction system to install a 1200mm OD casing around the gas pipe. Student: Jiri Granilla (Czech Technical University) Czech ...

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