Pavement Response to Superheavy Load Movement Review

With rapid growth and development of urban cities, rural areas have become the primary location for industrial plants. Depending on the type of facility, major components may be fabricated at a facility far from the location of the industrial plant. The size and weight of these components during transport can significantly exceed typical roadway load limits. The secure and successful transport of the superheavy loads from the fabrication plant to the final location becomes a challenging endeavor. There have been multiple research attempts to develop structural response models to predict pavement damage from superheavy loads. This paper is an update to the 2016 TAC paper “Modelling Pavement Response to Superheavy Load Movement” in which the outcome of several studies of superheavy load moves planned for the spring and winter months was discussed. This paper expands the research on the transport of a super heavy load in winter. The transport of a Splitter from the Dacro Industries Inc. facility in Edmonton to the Inter Pipeline Propylene plant north of Scotford, Alberta was the heaviest-ever load on Alberta roads. The transport vehicle for the winter move comprised a double inter-combi trailer with a gross vehicle weight of approximately 1.5 million kilograms. This vehicle had two 24 axle line trailers with 1.5 m axle spacing. Due to the sophisticated nature of the project, and various shortcomings highlighted with previous research methods, non-linear dynamic finite element modelling (FEM) was used to determine the pavement layer stresses and strains when subjected to superheavy load moves. To facilitate the move, several trials were completed with various scenarios. The move was successfully completed on the first week of January 2019. This paper will summarize the methodology and results of various scenarios predicted and the pavement inspection result prior to and after the move.

• Record URL:
  https://www.tac-atc.ca/sites/default/files/conf_papers/khanals_-_pavement_response_to_superheavy_load_movement_-_version_2.pdf
• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • KHANAL, S
  • Zeigle, A
  • Olidis, C
• Conference:
  • Transportation Association of Canada and ITS Canada 2019 Joint Conference and Exhibition
• Publication Date: 2019

Language

• English

Media Info

• Media Type: Web
• Pagination: 1 PDF file, 1.5 MB, 15p.
• Monograph Title: Transportation Association of Canada and ITS Canada 2019 Joint Conference and Exhibition

Subject/Index Terms

• TRT Terms: Case studies; Condition surveys; Conferences; Finite element method; Loss and damage; Mathematical models; Pavements; Shear strength
• Geographic Terms: Canada
• ITRD Terms: 8018: Canada; 8531: Case study; 3857: Condition survey; 8525: Conference; 1614: Damage; 6490: Finite element method; 6473: Mathematical model; 2955: Pavement; 5531: Shear
• Subject Areas: Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01730394
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: Feb 4 2020 2:59PM