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长大纵坡路段沥青路面车辙规律及影响因素

, PP. 28-31

Keywords: 道路工程,沥青路面,长大纵坡,车辙

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Abstract:

长大纵坡路段由于特殊的纵坡条件,车辙病害很严重,极大影响了行车安全。基于长大纵坡路段车辙病害的实地调查,分析了车辙沿纵向、横向和深度方向的分布规律,研究了慢速交通对路面车辙病害的影响。研究结果表明长大纵坡路段沥青路面车辙横向和深度方向的分布规律与常规沥青路面一致;但同一坡度下,车辙深度由坡底至坡顶逐渐增大,坡度越大、坡长越长、车辆行驶速度越低,路面车辙深度就越大;对于沥青混合料这种粘弹性材料,车辆低速行驶相当于增加了荷载作用时间,从而导致车辙迅速增加。

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