机场刚性道面PCN计算方法的对比分析研究

Comparative Analysis Studies on PCN Calculation Method of Rigid Air-port Pavements

文章对我国机场刚性道面的两种不同的PCN计算方法进行对比研究,分析了同等道面情况下二者之间的差异,并对二者的主要影响因素进行了敏感性分析。研究结果表明:当量单轮荷载计算方法较设计飞机法计算结果偏大,主要受道面厚度及地基强度影响;设计飞机计算方法综合考虑道面自身及航空交通量双方面因素,计算结果更加接近实际情况,但因根据评价机型的选取不同,所得结果并不唯一。

This article compared and studied two different PCN calculation methods for rigid airport pavements in China,analyzed the difference between them under the same pavement conditions,and conducted the sensitivity analysis on main influencing factors of them.The results showed thet.-the equivalent single-wheel load calculation method has the larger cal- culations than the design aircraft method, which is mainly influenced by pavement thickness and foundation strength~ the design aircraft calculation method comprehensively considered the factors of both pavement itself and air traffics,and the calculation results are much closer to the actual situation, but the results are not unique according to the different selection of evaluation aircraft models.