基于集料堆积密度的高速公路路面质量模型的研究

Research on the quality of the highway surface based on packing density of aggregates

对集料的筛孔通过率和路面压实度上界之间的数量关系进行深入的分析,借助半导体物理中金刚石晶体原子排列结构理论,得到了颗粒级配组成与碎石颗粒结构的最大堆积密度之间的关系式。根据关系式,利用Ori-gin仿真软件得出:在混合集料堆积密度相同的情况下,基础堆积密度越大,所需的颗粒级数越少。进而通过对集料筛孔率的控制,以减少路面的空隙率,达到提高路面质量的目的。

The quantitative relationship between the percentage of passing through screen mesh of aggregates and the upper bound of pavement compaction is analyzed deeply.Using the theory of diamond crystal＇s atomic arrangement structure in semiconductor physics,the relation formulas between the particle grading components and the maximum packing density of gravel particle structure.According to the relationship and using the Origin software,under the circumstance of the same packing density of mixed aggregates,the larger the basic element of packing density is,the less the particle grade is used.Furthermore,the porosity is reduced and the quality of highway is improved by controlling the percentage of passing through screen mesh of aggregates.