Pavement evaluation based on non-destructive methods and inverse analysis

Authors

  • Edisson Ávila Facultad de Ingeniería, Universidad de Cuenca, Av. 12 de abril s/n, Cuenca, Ecuador.
  • Flavio Albarracín Facultad de Ingeniería, Universidad de Cuenca, Av. 12 de abril s/n, Cuenca, Ecuador.
  • Jaime Bojorque Facultad de Ingeniería, Universidad de Cuenca, Av. 12 de abril s/n, Cuenca, Ecuador.

DOI:

https://doi.org/10.18537/mskn.06.01.11

Keywords:

auscultation techniques, deflection, back-calculation, ANSYS, EVERCALC, finite element

Abstract

 

The feasibility and efficiency of impact deflectometry, to assess the structural capacity of flexible pavements on local roads of the southern E40 road network, were analyzed. Deflections generated by the impact of the non-destructive Falling Weight Deflectometer are interpreted using back-calculation techniques, such as proposed by AASHTO 93, LUKANEN, YONAPAVE and ROHDE. Those techniques enable the quantification and qualification of the structural deterioration level of existing pavement-subgrade systems by two parameters. The first parameter is derived from the resilient modulus, and its value is compared to the output of inverse and finite element analysis using respectively the EVERCALC and ANSYS software. The second parameter is defined by the structural capacity of the pavement-subgrade system, and derived applying the concept of characteristic deflection as described in the AASHTO Design Guide 93. The study revealed that the best method to characterize the road status is the analysis technique proposed by YONAPAVE. The approach not only presents results of the current condition of the road under study, but provides also recommendations regarding the management of road pavement. The developed methodology enables to elevate in future pavement engineering to pavement management engineering.

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References

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Published

2015-12-01

How to Cite

Ávila, E., Albarracín, F., & Bojorque, J. (2015). Pavement evaluation based on non-destructive methods and inverse analysis. Maskana, 6(1), 149–167. https://doi.org/10.18537/mskn.06.01.11

Issue

Vol. 6 No. 1 (2015)

Section

Research articles

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