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通过道面损坏状况调查与评价,全面掌握了虹桥国际机场A滑行道K0～K2段道面损坏类型、等级及其空间分布规律等。结果表明,该区段范围内主要以结构性损坏为主,而角隅断裂是其中最普遍的病害类型;PCI评价结果表明,多数单元处于中及中等以下水平;道面损坏在空间分布上则主要集中于滑行道中间3块板。根据道面FWD弯沉测试和结构参数反算的结果,分别采用ACN-PCN强度评价和道面适应性厚度评价方法,对结构性能进行综合评价,结果表明现有道面结构的承载能力已无法满足航空交通运行的需求。综合考虑道面损坏状况和结构性能两方面的评价结果,建议对A滑行道K0～K2段道面实施大修工程,并推荐采用全结构翻修的技术方案。
Through the investigation and evaluation of pavement damage status, it fully grasps the pavement damage types, grades and spatial distribution rules of HongKong International Airport A taxiway K0 ~ K2 sections. The results show that the main structural damage is the main part of the range, and the corner fracture is the most common type of disease. The results of PCI evaluation show that most of the units are at the middle and lower levels; the pavement damage is in the spatial distribution Mainly concentrated in the middle of the taxiway 3 board. According to the results of the backfluctuation test of the FWD and the structural parameters, the strength evaluation of ACN-PCN and the thickness of the pavement are respectively used to evaluate the structural performance. The results show that the carrying capacity of the existing pavement structure has no way Meet the needs of aviation traffic. Considering the evaluation results of both the damage status and the structural performance of the pavement, it is suggested that overhaul works should be carried out on the K0 ~ K2 section pavement of A taxiway, and the technical proposal of full structure renovation should be recommended.