Structural Mechanical Response of Basalt Fiber Asphalt Pavement under a Half-Sinusoidal Load

In this paper, ANSYS finite element software was used to establish a three-dimensional finite element model of pavement structure. Dynamic load was applied to study the influence of axle load and vehicle speed on mechanical indexes of asphalt pavement structure. The results show that the mechanical indexes such as shear stress, tensile strain, tensile stress of the base layer, and compressive strain on the top of the subgrade of the basalt fiber asphalt pavement structure are improved to different degrees than ordinary asphalt pavement. Under dynamic load, the compressive strain on the top of subgrade and shear stress of the basalt fiber asphalt pavement at 120 km/h are reduced by 8.4% and 12.12% respectively compared with 60 km/h; When the axle load is 100 KN, the maximum shear stress of surface layer, the tensile stress at the bottom of the subbase layer and the compressive strain on the top of the subgrade are reduced by 2.54%, 2.66%, and 2.56%, respectively.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 1267- 1277
  • Monograph Title: CICTP 2020: Transportation Evolution Impacting Future Mobility

Subject/Index Terms

Filing Info

  • Accession Number: 01767406
  • Record Type: Publication
  • ISBN: 9780784483053
  • Files: TRIS, ASCE
  • Created Date: Dec 9 2020 3:02PM