Modelling Pavement Response to Superheavy Load Movement

With continuous development and expansion of industrial plants in rural areas, the movement of superheavy loads has become a necessity. Over the years, researchers have attempted to develop structural response models to predict pavement damage from superheavy loads with mixed degrees of success. To date, specific structural analysis guidelines/methodologies to predict pavement damage have yet to be validated. This paper outlines the outcome of a literature survey of ‘best practices’ and presents the outcome of two studies of superheavy load moves each planned for the spring and winter months of 2016 and 2017. Based on the apparent shortcomings highlighted with previous analysis methods, finite element modelling was used to determine the pavement layer stresses and strains when subjected to superheavy moves. The transport vehicle for the winter move comprised a double inter combi trailer with gross weight of vehicle of approximately 1.5 million kilograms. This vehicle had two 24 axle line trailers with 1.5m axle spacing to facilitate the move. The transport vehicle for the spring move was a 4 file – 24 line conventional trailer with gross weight of 625,000 kilograms. The paper will present the study methodology, environment factors, material properties, traffic and speed variables, and the simulation of the model replicating the pavement response.

• Record URL:
  http://www.tac-atc.ca/sites/default/files/conf_papers/khanal.pdf
• 
• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • KHANAL, S
  • Olidis, C
  • HEIN, DK
• Conference:
  • TAC 2016: Efficient Transportation - Managing the Demand - 2016 Conference and Exhibition of the Transportation Association of Canada
• Publication Date: 2016

Language

• English

Media Info

• Media Type: Web
• Pagination: 1 PDF file, 1 MB, 19p.
• Monograph Title: TAC 2016: Efficient Transportation - Managing the Demand - 2016 Conference and Exhibition of the Transportation Association of Canada

Subject/Index Terms

• TRT Terms: Conferences; Finite element method; Forecasting; Load limits; Loss and damage; Mathematical models; Pavements; Tests; Trucks; Vehicle weight
• Geographic Terms: Canada
• ITRD Terms: 8018: Canada; 8525: Conference; 1614: Damage; 1527: Excess load (veh); 6490: Finite element method; 132: Forecast; 1236: Lorry; 6473: Mathematical model; 2955: Pavement; 6255: Test
• Subject Areas: Motor Carriers; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01616393
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: Nov 15 2016 4:56PM