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Comparison analysis of overlay thickness using the AASHTO 1993 method and the everseries program

机译:使用AASHTO 1993方法和everseries程序的覆盖厚度的比较分析

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The purpose of this research is to analyze the structural capacity of flexible pavement based on deflection data from Falling Weight Deflectometer (FWD) and to compare the results of overlay thickness calculation using AASHTO 1993 Method and Everseries Program. Two layer modelling system is applied in AASHTO 1993 Method and to determine the value of Resilient Modulus (MR), Pavement Effective Modulus (Ep) and Structural Number (SN). The overlay thickness result by AASHTO 1993 method ranged from 5 cm to 13 cm. To comparing the result, the 2-layer system modeling by Everseries Program is used. The modulus can be calculated by Evercalc subprogram using the deflection data as inputs. Furthermore, the overlay thickness calculated by Everpave subprogram produces overlay thickness range from 5 cm to 25 cm. Based on the analysis result, there is a difference overlay thickness between using AASHTO 1993 Method and Everseries Program. Everseries program produce overlay thickness thicker than AASHTO 1993 method, because there are several different parameters such as deflection data, temperature by seasonal variations and traffic loads.
机译:本研究的目的是基于来自下降重量偏转仪(FWD)的偏转数据来分析柔性路面的结构能力,并使用AASHTO 1993方法和everseries程序比较覆盖厚度计算的结果。两层建模系统应用于AASHTO 1993方法,并确定弹性模量(MR),路面有效模量(EP)和结构数(SN)的值。 Aashto 1993方法的覆盖层厚度结果范围为5厘米至13厘米。为了比较结果,使用Everseries程序的2层系统建模。模量可以通过使用偏转数据作为输入来通过Evercalc子程序计算。此外,通过EVERPAVE子程序计算的覆盖层厚度产生覆盖层厚度范围为5cm至25cm。基于分析结果,使用AASHTO 1993方法和everseries程序之间存在差异覆盖厚度。 Everseries程序生产覆盖层厚度比AASHTO 1993方法更厚,因为存在几种不同的参数,例如偏转数据,温度通过季节性变化和交通负荷。

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