Sensitivity Analysis of Flexible Pavement Parameters by Mechanistic-Empirical Design Guide

Abstract:

The sensitivity analysis of performance for flexible pavement can be used to study the influence of every parameters, which can help optimization design and performance evaluation of the pavement structure. In this research, three asphalt layers and four asphalt layers were selected to study the sensitivity of traffic and material parameters based on MEPDG method. Some computer aided engineering simulation techniques, such as the Latin hypercube sampling (LHS) technique and the multiple regression analysis are used as auxiliary means. The single factorial sensitivity analysis method was used to calculate the sensitivity of traffic and material parameters and to validate the result of sensitivity analysis in multiple regression process based on MEPDG. The result shows that, about traffic parameters, Two-way AADT, Dual tire spacing and Vehicle operational speed are more significant than other parameters. The largest effects on rutting are due to Air Void--2, Air Void--1, Poisson' Ratio--1 and Poisson' Ratio--2. However, it is different on cracking, where the largest effects are due to Air Void--1, Poisson' Ratio--1, and Efficient Binder Content--1.

• Periodical: Applied Mechanics and Materials (Volume 590)
• Pages: 539-545
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.590.539
• Online since: June 2014
• Authors: Xiao Yan Li*, Ran Zhang, Xin Zhao, Hai Nian Wang
• Keywords: Flexible Pavement, Mechanistic-Empirical Design Guide, Performance Parameters, Sensitivity Analysis

References

[1] Armando Orobio. Sensitivity analysis of flexible pavement performance parameters in the mechanistic-empirical design guide [D]. West Virginia, West Virginia Univeisity. DAI/B 71-11, p, Nov (2010).

DOI: 10.33915/etd.2979

[2] Ma Qiang. Optimum research on asphalt pavement layer structure and material based on the operational Performance [D]. Chang'an University, (2011).

[3] Chen Xingwei. The intro of MEPDG[J]. ShangHai Highways, 2011, (3).

[4] WU Zhenjun, WANG Shuili, GE Xinrun. Application of Latin hypercube sampling technique to slope reliability analysis [J]. Rock and Soil Mechanics, 2010, (4): 1047-1054.

[5] Guide for Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures. Final Report [R]. NCHRP, National Research Council, Washington D.C., March (2004).

[6] Sensitivity Evaluation of MEPDG Performance Prediction Final Report[R]. NCHRP1-47FR, Transportation Research Board, December (2011).

[7] WANG Hainian, ZHANG Chen, LI Xiaoyan, YOU Zhanping. Rutting sensitivity analysis of material parameter for asphalt pavement with semi-rigid base by MEPDG method[C]. 7th China-Japan Workshop on Pavement Technologies, Aug (2013).

[8] WANG Hai-nian, ZHANG Chen, YOU Zhan-ping. International Roughness Index Sensitivity of Asphalt Pavement Based on MEPDG Method[J]. Journal of Wuhan university of technology, 2012 Vol. 34 (6): 42-47.

[9] Ministry of Transport of the People's Republic of China. JTGD50-2004 Specifications for Design of Highway Asphalt Pavement[S]. China Communications Press, (2004).

[10] Miao Yinghao, Wang Binggang. Zoning scheme of climatic influence for asphalt pavement in China[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 64-69.