【摘要】 根据不同的路面结构———刚性路面、半刚性基层沥青路面和柔性基层沥青路面 ,分别采用临界荷位的板底拉应力、半刚性基层底部拉应力和土基顶面压应变作为控制指标 ,分析不同轴限对道路路面设计厚度的影响 ,得出了路面增加厚度与轴限的关系曲线。并计算了不同轴限下所需增加的道路建设费用 ,为轴限方案的比较提供了依据更多还原

【Abstract】 In this paper tensile?stress of slab bottom on critical position, tensile?stress of base bottom and compress?stress on the top of subgrade were used as a control criterion respectively for rigid pavement, semi?rigid?base pavement and flexible?base pavement The effect of axle load limits on pavement design thickness was analyzed The relationship between load limits and added pavement thickness was obtained The added construction cost of different load limits was also calculated,the results could be a good reference for the choose of load limit更多还原