TY  - JOUR
TI  - Optimizing Non-linear Granular Layer Coefficients of a
Flexible Pavement for Mechanistic-Empirical Method
AB  - In recent years, mechanistic-empirical (M-E) design methods are preferred in the design of
flexible pavements instead of empirical methods using equations based on the road
performance tests. However, the calibration of transfer equations that convert mechanical
responses to pavement life and the definition of layer materials used in M-E methods have
great importance for M-E methods.
In this study, mechanical analyses of a cross-section designed with the AASHTO-93 method
were performed, and service life values were calculated with different empirical transfer
equations. The obtained M-E design results were compared with the results calculated with
the AASHTO-93 method, and transfer equations compatible with the AASHTO-93 method
were determined. Among the transfer equations examined, it was found that the rutting
equation of the Asphalt Institute gave the most consistent results with the AASHTO-93
method. In the mechanical analysis of the selected cross-section, granular base and sub-base
layers were defined as non-linear elastic reflecting the actual in-situ conditions. K-Ɵ model
was preferred for non-linear elastic layer definition, and K1 and K2 parameters of this model
were optimized.
AU  - Bostancıoğlu, Murat
DO  - 10.18400/tekderg.637166
PY  - 2021
JO  - Teknik Dergi
VL  - 32
IS  - 6
SN  - 1300-3453
SP  - 11315
EP  - 11336
DB  - TRDizin
UR  - http://search/yayin/detay/535527
ER  -