机场跑道排水是保障飞机运行安全和飞机品质的关键因素之一,良好的排水系统能够有效排除雨水,减少积水和滞留水的影响.为了探讨现有机场跑道排水系统排水能力,以及降雨与排水系统的演化过程,以中国南方某机场跑道为研究对象,将丹麦水利研究所开发的集成的水文水质量模型(Danish Hydraulic Institute model integrated computing,DHI MIKE)模型应用于机场跑道,构建耦合雨洪模型.根据研究区域的降雨特性以及现有排水系统,设计4种不同重现期的降雨情景,从管道充满度、地表淹没结果、跑道积水演化过程3个方面进行模拟分析.结果表明:管道满管数量与降雨强度呈正比关系,不同重现期下研究区域水深的空间分布大体呈一致状态,集中在集水浅沟周围.重现期越大,积水深度越高;出现积水时间和跑道关闭时间提前.跑道排水能力基本能够满足5年一遇的降雨标准.
Evolution of Airport Runway Water Accumulation through Coupled Rainfall-drainage Processes
Airport runway drainage is one of the key factors in ensuring the safety of aircraft operation and aircraft quality,and a good drainage system can effectively remove rainwater and reduce the impact of stagnant and retained water.To explore the drainage capacity of the existing airport runway drainage system,as well as the evolution process of rainfall and drainage system,an airport-runway in southern China was taken as the research object,applied the Danish Hydraulic Institute model integrated computing(DHI MIKE)model to the airport runway,and the coupled rainfall and flooding model was constructed.According to the rainfall characteristics of the study area and the existing drainage system,four rainfall scenarios with different recurrence periods were designed,and simulation analyses were conducted from three aspects:pipe fullness,surface inundation results,and runway waterlogging evolution process.The results show that the number of full pipes is positively related to the rainfall intensity,and the spatial distribution of water depth in the study area under different recurrence periods is generally consistent,concentrates around the shallow catchment ditch.The larger the recurrence period,the higher the water depth.The time of water accumulation and runway closure are advanced.The runway drainage capacity can meet the standard of one in five years of rainfall.
airport runwayDanish Hydraulic Institute model integrated computing(DHI MIKE)modelrainfall recurrence intervalpipe filling leveldrainage capacity
万方数据
维普
