沥青路面全厚度车辙影响因素的正交试验研究

考虑温度、荷载和厚度三个因素,并选取相应的因素水平,对武汉市三环线武黄高速公路共线段采用的沥青加铺结构层进行全厚度车辙试验。利用正交试验分析方法得出对车辙试验中动稳定度DS、车辙深度RD影响程度为:荷载>温度>厚度;当上面层、中面层采用改性沥青时,可适当减小整个沥青结构层的厚度;进行车辙试验时,应同时考虑DS与RD两个指标。

Orthogonal Experimental Study on the Total Thickness Track Test of Asphalt Pavement

Considering three factors, temperature, load and thickness and choosing relative factor levels, a total thickness track test on the mutual segment of Wu Huang freeway and the third annular urban road of Wuhan asphalt pavement has been done. And using of the orthogonal method, the influence on the dynamic stability(DS) and rut depth(RD) is load>temperature >thickness. When using modified asphalt in above and middle levels, the thickness of total asphalt structure level should be decreased aptly. The two indexes, DS and RD should be considered at the same time when doing rutting test.