Culvert Rehabilitation using 3D Printed Diffusers (2.11)

Due to the increasing number of deteriorating and failing culverts under highways in Maine and across the nation, efforts have been underway to reduce costs by slip lining selected culverts rather than replacing them. While slip lining extends the useful life of culverts, it reduces the diameter of both the culvert and the inlet thus reducing culvert capacity. Utilizing diffuser technology can more than compensate from the reduction in capacity that results from the slip lining process. This trenchless technology of slip lining a culvert and adding a performance enhancing diffuser outlet can extend the useful life of the culvert by decades without compromising capacity. A partnership between MaineDOT and UMaine has provided a unique opportunity to utilize large-scale 3D printing technology to design and manufacture diffusers with the specific geometry required for each field installation. Whereas the use of fiberglass or reinforced concrete would require different forms for each different size diffuser, 3D printing can simply add a scaling factor to an existing diffuser design. Large-scale 3D printing technology using low-cost materials shows great promise in designing and manufacturing inexpensive and site-specific diffusers. Because the addition of a diffuser would eliminate the reduced capacity resulting from slip lining, this cost-effective trenchless technology could be used much more broadly.

Language

  • English

Project

  • Status: Active
  • Funding: $158467
  • Contract Numbers:

    69A3551847101

  • Sponsor Organizations:

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590

    University of Maine, Orono

    Department of Civil and Environmental Engineering.
    5717 Corbett Hall
    Orono, ME  United States  04469-5711
  • Managing Organizations:

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590

    University of Maine, Orono

    Department of Civil and Environmental Engineering.
    5717 Corbett Hall
    Orono, ME  United States  04469-5711
  • Project Managers:

    Dunn, Denise

  • Performing Organizations:

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    University of Maine, Orono

    Department of Civil and Environmental Engineering.
    5717 Corbett Hall
    Orono, ME  United States  04469-5711
  • Principal Investigators:

    Lopez-Anido, Roberto

    Anderson, James

    Gardner, Douglas

  • Start Date: 20200601
  • Expected Completion Date: 20220830
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01851418
  • Record Type: Research project
  • Source Agency: Transportation Infrastructure Durability Center
  • Contract Numbers: 69A3551847101
  • Files: UTC, RIP
  • Created Date: Jul 14 2022 11:34AM