Application of a novel linear-viscous approach to predict permanent deformation in simulative inverted pavements
Application of a novel linear-viscous approach to predict permanent deformation in simulative inverted pavements
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DOI：
10.1016/j.conbuildmat.2020.120681
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发表时间：
2021-01-18
影响因子：
7.4
通讯作者：
Dawson, Andrew
中科院分区：
文献类型：
--
作者：
Ahmed, Imtiaz;Thom, Nick;Dawson, Andrew
这份手稿是一个新的调查方法的一部分，重点是在英国的倒人行道的设计。本文报道了通过使用两种实验室装置模拟（实验室规模）不同厚度组合的倒置式路面的永久变形响应。一种新的分析方法，实施预测车辙的基础上的线性粘性的方法，它取代了材料的弹性模量与粘性的多层线性分析，计算应变率在路面层，使用KENLAYER，最终估计车辙。新开发的方法的应用结果在预测路面车辙的测量值的+/- 22%的范围内，并代表了一个步骤，在预测车辙在实际/真实的倒置路面。(C)2020爱思唯尔有限公司保留所有权利。
This manuscript is a part of a novel investigative approach focusing on the design of inverted pavements in the United Kingdom. This paper reports the permanent deformation response of simulative (laboratory-scale) inverted pavements with various thickness combinations through the use of two laboratory devices. A new analytical methodology is implemented to predict rutting based on the linear-viscous approach, which replaces the material's elastic modulus with viscosities in a multi-layer linear analysis that calculates strain rates in pavement layers by using KENLAYER, to ultimately estimate rutting. The application of the newly developed methodology results in predicting pavement rutting within a range of +/- 22% of the measured values and represents a step forward in predicting rutting in actual/real inverted pavements. (C) 2020 Elsevier Ltd. All rights reserved.