机场道面承载能力ACR‐PCR评价方法及其改进方向

ACR-PCR Evaluation Method and Its Improvement for Bearing Capacity of Airport Pavement

摘要:

道面承载能力评价是保障飞机安全运行的重要工作之一。在回顾飞机分类号?道面分类号（aircraft classification number‐pavement classification number，ACN‐PCN）评价方法基本原理并总结其局限性的基础上，阐述了飞机分类等级?道面分类等级（aircraft classification rating‐pavement classification rating，ACR‐PCR）评价方法的优化内容；明确了ACR和PCR的计算方法，并通过算例对比分析了2种方法，同时提出了改进方向。结果表明，ACR‐PCR评价方法优化了标准道面结构、当量单轮胎压等参数，更新了道面结构破坏模式的控制准则及力学响应计算方法，实现了与现行设计方法的统一；ACR值不能简单地用10倍的ACN值表示，并且ACR‐PCR评价方法对刚性道面承载能力提出了更高要求；建议在优化标准结构的基础上，提出针对无机结合料稳定类基层道面的ACR计算方法以及刚性道面上加铺层复合道面承载能力ACR‐PCR评价方法。

Abstract:

The evaluation of pavement bearing capacity is a crucial aspect in ensuring the safe operation of aircraft. We review the basic principles of the evaluation method of aircraft classification number-pavement classification number （ACN-PCN） and summarize its limitations. The optimization content of the aircraft classification rating-pavement classification rating （ACR-PCR） evaluation method is expounded. The calculation procedures for both ACR and PCR are detailed， and a comparative case study is conducted to analyze the two methods. The results show that the ACR-PCR evaluation method optimizes parameters such as its standard structure and equivalent single tire pressure， and updates the control criteria of the pavement structure failure mode and the calculation method of its mechanical response， thereby achieving alignment with current pavement design methodologies. The study reveals that ACR values cannot be simply represented as ten times ACN values. Moreover， the ACR-PCR evaluation method imposes more stringent requirements on the load-bearing capacity of rigid pavements. It is recommended that on the basis of optimizing the standard structure， the calculation method of ACR for inorganic binder stable base pavement and the ACR-PCR evaluation method for the bearing capacity of composite pavement with overlay on rigid pavement should be proposed．