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设计年限内一个车道上累计当量轴次是路面结构设计的基础,合理确定设计交通量、设计年限内交通量的组成及平均增长率是准确计算设计年限内一个车道上累计当量轴次的关键。本文以某省道公路实际为例,介绍设计阶段采用的设计交通量、设计年限内交通量组成及平均增长率与公路运营后实际情况的差异,以及由此造成对公路使用年限的严重影响,供路面结构设计计算设计年限内一个车道上累计当量轴次时参考。
The cumulative equivalent axioms of a lane within the design life is the basis of the pavement structure design. It is the key to properly design the traffic volume, the composition of the traffic volume within the design life and the average growth rate to accurately calculate the cumulative equivalent axioms of a lane within the design life. In this paper, a provincial highway as an example to introduce the design phase of traffic flow used during the design life and composition of the average growth rate after the actual operation of the road and the difference between the resulting road life caused by the serious impact, For pavement structure design calculation of the design of a lane when the cumulative equivalent axis times reference.