FWD反算模量温度校正模型的建立与验证

IF 1.6 Q3 ENGINEERING, CIVIL Australian Journal of Civil Engineering Pub Date : 2022-06-01 DOI:10.1080/14488353.2022.2083045
V. P. Le, A. Le, M. Nguyen, Quang Phuc Nguyen
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引用次数: 2

摘要

本文建立并验证了落锤式挠度计(FWD)反计算动态模量的温度校正模型。FWD试验用于测定现场动态模量,而间接拉伸(IDT)动态模量试验用于测量实验室动态模量。考虑FWD加载频率和路面温度的影响,建立了温度修正模型。使用从26个Westrack路面路段获得的现场FWD数据和韩国国道的长期路面性能数据库对其进行了验证。此外,使用现场FWD测试将校正因子与类似的现有模型进行了比较。从研究结果可以看出,温度校正模型能够准确地预测动态模量。
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Development and validation of a temperature correction model for FWD backcalculated moduli
ABSTRACT A temperature correction model for Falling Weight Deflectometer (FWD) backcalculated dynamic modulus was developed and validated in this study. FWD test was conducted to determine the field dynamic modulus, while the indirect tensile (IDT) dynamic modulus test was used to measure laboratory dynamic modulus. A temperature correction model was developed considering the effect of FWD loading frequency and pavement temperature. It was validated using field FWD data obtained from 26 Westrack pavement sections and Korean national highways’ long-term pavement performance database. Also, the correction factor was compared with similar existing models using FWD testing in the field. It was observed from study results that the temperature correction model is capable of predicting the dynamic modulus accurately.
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来源期刊
CiteScore
3.90
自引率
7.70%
发文量
31
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