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基于ALF加速加载的沥青混合料车辙标准研究

, PP. 43-48

Keywords: 道路工程,沥青路面,加速加载试验,动稳定度,车辙深度

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Abstract:

？为了确定与温度、交通量、结构层位、行车速度相关联的沥青混合料车辙标准,依托ALF加速加载试验、室内车辙试验和理论分析展开研究。以3种路面结构在3种不同工况下的ALF加速加载车辙试验为主要支撑,建立用于求解车辙标准的车辙预估模型;提出车辙分层预估的方法,并建立车辙深度R0与动稳定度(DS)标准的求解方法;以甘肃地区为例,求解5个分区典型路面结构在不同行车速度下不同层位的R0与DS标准。结果表明:车辙标准随行车速度减慢、路面温度升高、轴载作用次数增多而提高,且中、上面层的标准值远远高于下面层。

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