期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 367, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2022.129513
关键词
Asphalt pavement; Dynamic deflection; Numerical analysis; Falling Weight Deflectometer
In this paper, a three-dimensional finite element method was used to analyze typical asphalt pavement structures under FWD test. A dynamic deflection calculation model and method were established, and an equivalent conversion method of asphalt pavement was proposed. The applicability of the method was verified through comparison with on-site FWD results. The proposed method for calculating dynamic deflection is crucial for asphalt pavement construction quality acceptance, modulus back calculation, and pavement design.
During the falling weight deflectometer (FWD) evaluation, only calculating the acceptance deflection by adopting the layered elastic system theory has its limitations. In this paper, a three-dimensional finite element method was adopted to carry out the dynamic simulation analysis of typical asphalt pavement structures under FWD test. As a result, a dynamic deflection calculation model of asphalt pavement under FWD loading was established as well as the calculating method, in which a layered elastic system theory is adopted for calculations on the basis of the dynamic-static deflection ratio. Furthermore, an equivalent conversion method of asphalt pavement was proposed based on the deflection equivalent principle. Last, the applicability of the method was examined by comparing the FWD results of the pavement sections tested on-site. The method proposed in this paper to calculate the dynamic deflection of asphalt pavement is critical for the quality acceptance of asphalt pavement construction, modulus back calculation, and asphalt pavement design.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据