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NASTT NO-DIG 2015 - Reline White Paper TA-T6-03

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Official presentation of the Clarks Summit PA Reline paper submitted by Contech Engineered Solutions to the North American Society for Trenchless Technology's No-Dig 2015 show. Here is the link to the complete case study - http://www.conteches.com/knowledge-center/case-studies/case-study-details/articleid/1342/.

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NASTT NO-DIG 2015 - Reline White Paper TA-T6-03

  1. 1. SR 0006 CULVERT REHAB – CLARKS SUMMIT, PA USING ALUMINUM TUNNEL LINER PLATE NASTT’s 2015 No-Dig Show
  2. 2. Clarks Summit, PA - SR 0006
  3. 3. July 2013 – Slope & Structure movement
  4. 4. February 2012 – South Structure
  5. 5. South Structure – Exposed Backfill
  6. 6. Clarks Summit, PA - SR 0006 Design Development: STV studied a full range of solutions. Considerations included: • Safety of the public and contractors • Traffic would need to be maintained on either side of the roadway. Any replacement alternatives would requires two stages, under each side of the highway. • Constructability • Disturbance of the pipes, causing a collapse • Hydraulics • Duration of construction. The pipes were now a separate rush project. • Cost. The full range of solutions came with a range of costs with a few million dollars spread.
  7. 7. Clarks Summit, PA - SR 0006 Some of the alternatives included: • Replace with new CMP’s • Replace with a box culvert • Replace with a precast arch • Replace with a bridge including an option to remove embankment to the top of the pipes and constructing the bridge over the pipes. The pipes would be removed after the first half of the bridge was constructed. • Steel liner • Aluminum liner
  8. 8. Clarks Summit, PA - SR 0006 The Solution: STV realized the benefits and recommended the aluminum tunnel liner pipe lining alternative.
  9. 9. Clarks Summit, PA - SR 0006
  10. 10. Clarks Summit, PA - SR 0006
  11. 11. Clarks Summit, PA - SR 0006
  12. 12. Clarks Summit, PA - SR 0006
  13. 13. Clarks Summit, PA - SR 0006
  14. 14. Clarks Summit, PA - SR 0006
  15. 15. Clarks Summit, PA - SR 0006
  16. 16. Aluminum Tunnel Liner Plate – 2 Flange
  17. 17. Clarks Summit, PA - SR 0006
  18. 18. Clarks Summit, PA - SR 0006
  19. 19. Clarks Summit, PA - SR 0006
  20. 20. Clarks Summit, PA - SR 0006
  21. 21. Clarks Summit, PA - SR 0006
  22. 22. Clarks Summit, PA - SR 0006
  23. 23. Clarks Summit, PA - SR 0006
  24. 24. Clarks Summit, PA - SR 0006
  25. 25. Clarks Summit, PA - SR 0006
  26. 26. Costs • Design Estimate: $ 1,121,267 • Low Bidder’s Original Contract: $ 1,195,014 • Final Contract: $ 1,184,826 Copyright 2015 by the North American Society for Trenchless Technology. Original paper distributed at NASTT’s 2015 No-Dig Show. All rights reserved. Used with permission. www.nastt.org

Official presentation of the Clarks Summit PA Reline paper submitted by Contech Engineered Solutions to the North American Society for Trenchless Technology's No-Dig 2015 show. Here is the link to the complete case study - http://www.conteches.com/knowledge-center/case-studies/case-study-details/articleid/1342/.

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