trenchless technology
TRANSCRIPT
![Page 1: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/1.jpg)
![Page 2: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/2.jpg)
Introduction
Why Trenchless Technology
Advantages & Disadvantages
Site Investigation
Methods Of Trenchless Technology
Conclusion
References
![Page 3: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/3.jpg)
What is Trenchless Technology….????
Trenchless technology refers to the idea that underground
utilities can be maintained and installed without expensive and
annoying excavations.
The International Society for
Trenchless Technology - 1986
![Page 4: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/4.jpg)
Heavy Vehicular And Pedestrian Traffic
Numerous Existing Underground Utilities
Locations Where Surface Access May Be Restricted i.e. Vegetation.
Crossing Rivers And Waterways
No Problem For The City People
![Page 5: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/5.jpg)
Advantages
![Page 6: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/6.jpg)
• Less disruption to traffic
• Minimal space required
![Page 7: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/7.jpg)
Reduced Risk Of Damage To Nearby Nature, Structures
Enhanced work and public safety
Reduces Pollution and Waste
![Page 8: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/8.jpg)
Costly equipment
High degree of operation is required
No control over the line & grade
![Page 9: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/9.jpg)
Geological Survey
Boring & Sampling
Depth Of GWT
Penetration Test / test pits
Examinations And Investigations Of Existing Structure
![Page 10: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/10.jpg)
1. New installations
◦ Micro Tunneling
◦ Horizontal Directional Drilling
2. Rehabilitation & renovation
◦ Pipe Bursting
◦ Pipe Eating
![Page 11: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/11.jpg)
• Digging technique used to construct small tunnels
• Micro tunnel boring machines (MTBM) - 0.61 to
1.5 meters Φ
• Shaft for setting MTBM & jacking frame
• Operator controls the MTBM & jacking frame
• AS length increases , friction increases
• First, over-cutting is done, secondly, a lubricant is injected
![Page 12: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/12.jpg)
![Page 13: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/13.jpg)
Trenchless Method Of Replacing Buried Pipelines
Five Key Pieces Of Equipment Used
◦ Expander head,
◦ Pulling rods,
◦ A pulling machine,
◦ A retaining device, and
◦ A hydraulic power jack.
Upsizing
Upsizing from 100mm to 225mm diameter of up to 900mm
Also be used to expand pipeline
![Page 14: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/14.jpg)
![Page 15: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/15.jpg)
The principle behind trenchless technology is to minimize the
disruption caused whenever infrastructure has to be installed in
underground.
As It takes less people and less time to complete this type of project,
the costs are significantly lower than traditional excavations.
![Page 16: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/16.jpg)
Public Works Technical Bulletins , Published By The U.S. Army Corps Of
Engineers, Washington, DC. PWTB 420-49-10 28 February 1999 .
Trenching And Conduit Standard For Underground Distribution Cable
Networks ,Published: 3 September 2012
Maninder Singh , Techniques Of Trenchless Technology Use In India
.Civil Engineering And Construction .Review October 2009…
![Page 17: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/17.jpg)
![Page 18: TRENCHLESS TECHNOLOGY](https://reader033.vdocument.in/reader033/viewer/2022042518/55aedfe51a28abbe1f8b47dd/html5/thumbnails/18.jpg)