Optimizing Non-Linear Granular Layer Coefficients of a Flexible Pavement for Mechanistic-Empirical Method

Murat BOSTANCIOĞLU

doi:https://doi.org/10.18400/tekderg.637166

Makale detayları

Optimizing Non-Linear Granular Layer Coefficients of a Flexible Pavement for Mechanistic-Empirical Method

Yazarlar:

Murat BOSTANCIOĞLU

Yayıncı:

TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar:

İnşaat mühendisliği

Dergi:

Teknik Dergi 2021 Vol.32 Issue 6, pp.11315-11336

Belge Tipi:

Makale

Yayın Tarihi:

10/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000648324

Sıklık:

İki Aylık

pISSN:

1300-3453

DOI:

https://doi.org/10.18400/tekderg.637166

Özet:

 


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 analyzes 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.

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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 analyzes 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.

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Makale detayları

Optimizing Non-Linear Granular Layer Coefficients of a Flexible Pavement for Mechanistic-Empirical Method

Yazarlar: Murat BOSTANCIOĞLU

Yayıncı: TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar: İnşaat mühendisliği

Dergi: Teknik Dergi 2021 Vol.32 Issue 6, pp.11315-11336

Belge Tipi: Makale

Yayın Tarihi: 10/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000648324

Sıklık: İki Aylık

pISSN: 1300-3453

DOI: https://doi.org/10.18400/tekderg.637166

Sayı

Yazarlar:

Murat BOSTANCIOĞLU

Yayıncı:

TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar:

İnşaat mühendisliği

Dergi:

Teknik Dergi 2021 Vol.32 Issue 6, pp.11315-11336

Belge Tipi:

Makale

Yayın Tarihi:

10/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000648324

Sıklık:

İki Aylık

pISSN:

1300-3453

DOI:

https://doi.org/10.18400/tekderg.637166