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Impact of dynamic wheel load on roadway infrastructure sustainability

机译:动态轮载对道路基础设施可持续性的影响

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Dynamic wheel load (DWL) may result in additional pavement damage. This study examined the impact of DWL on pavement performance using mechanistic tractor-trailer and three-dimensional (3-D) viscoelastic finite element (FE) pavement models. Based on the result of FE simulations, a correlation between the pavement responses and DWL was established. Using the mechanisticempirical pavement design guide approach, the pavement service life was predicted. A case study based on life cycle assessment (LCA) and life cycle costing (LCC) methodologies was performed to study the DWL impact on greenhouse gas (GHG) emissions, energy consumption, and cost. The study identified the probabilistic distribution of pavement service life due to DWL. The effect of pavement service life on the environmental impact of each LCA stage was investigated. Finally, optimal sustainable solutions considering both environmental and economic impacts were introduced using a Pareto frontier analysis.
机译:动态轮载荷(DWL)可能导致额外的路面损坏。 本研究通过机械拖拉机 - 拖车和三维(3-D)粘弹性有限元(FE)路面模型来检查DWL对路面性能的影响。 基于FE模拟的结果,建立了路面响应与DWL之间的相关性。 使用机械化工路面设计指导方法,预测了路面使用寿命。 基于生命周期评估(LCA)和生命周期成本(LCC)方法的案例研究进行了研究,研究DWL对温室气体(GHG)排放,能耗和成本的影响。 该研究确定了由于DWL引起的路面使用寿命的概率分布。 研究了路面使用寿命对每个LCA阶段环境影响的影响。 最后,使用帕累托前沿分析引入了考虑环境和经济影响的最佳可持续解决方案。

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