An automated system for measuring pavement deflection basin parameters under dual tyres assembly of a vehicle

For structural evaluation of a road surface, accurate measurement of deflection basin parameters of the road surface is one of the important tasks. The use of Benkelman Beam for measurement of pavement deflection under fixed wheel load and tyres pressure is a common practice in India. However, the pavement deflection measured using Benkelman Beam is single valued and does not give detailed information about the condition of the road structure. This paper presents development of an automated system called Road Parameter Measurement System (RPMS) for measuring pavement deflection basin parameters under dual tyres assembly of a truck using some displacement measuring sensors. The deflection basin parameters which can be measured by the developed system include maximum deflection, surface curvature index, base curvature index, spreadability, area, shape factors, base damage index and slope of deflection. In the developed system, deflections of the pavement are measured at radial distances from the centre of the loading point using Linear Variable Differential Transformers (LVDTs). The developed system has been implemented in a Peripheral Components Interconnect extensions for Instrumentation (PXI) platform with the help of Laboratory Virtual Instrument Engineering Workbench (LabVIEW). The test results indicate that the developed system has potential to acquire and analyze the pavement deflection basin parameters automatically.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1790571
• Supplemental Notes:
  • Abstract reprinted with permission from the publisher.
• Authors:
  • Lokeshwor, Huidrom
  • Vu, G K
  • Sharma, D C
• Publication Date: 2013-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 11-16
• Serial:
  • Indian Highways
  • Volume: 41
  • Issue Number: 7
  • Publisher: Indian Roads Congress
  • ISSN: 0376-7256

Subject/Index Terms

• TRT Terms: Automation; Axle load force; Deflection tests; Structural analysis
• Geographic Terms: India
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I60: Maintenance;

Filing Info

• Accession Number: 01488145
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 25 2013 4:43PM