斯里兰卡某机场飞行区排水设计探讨

Discussion on Design of Drainage Systems for an Airport Runway,Apron and Taxiway in Sri Lanka

在斯里兰卡某机场飞行区跑道、停机坪、下滑台的排水系统设计中,借鉴了发达国家的相关经验及做法,重点对跑道道面区外侧是否设置渗水管、停机坪排水如何考虑隔油及下滑台排水沟布置位置进行了探讨。另外在机场排水及防洪设计过程中,利用BIM设计软件Civil 3D对场内及场外地势进行建模,解决了机场周边防洪的合理评估,为机场排水设计提供了强有力的保障。同时根据海外项目的特点,因地制宜,综合考虑大象通道、生态环境保护、水土保持等因素,通过降低排洪渠深度、减少弃土、增设沉淀池等措施有效降低了对环境的影响。随着"一带一路"战略的实施,援外项目日益增多,该工程可为类似国外机场工程的设计提供参考。

The related experience and practices of developed countries were used for reference in the design of drainage systems of an airport runway, apron and taxiway in Sri Lanka. The seepage pipe at outside of pavement area of the runway, oil separation for drainage on the apron and the location of drainage channel in the taxiway were discussed. During the design process of airport drainage and flood control, the on-site and off-site topography was modeled using BIM software Civil 3 D, which solved the ra tional assessment for the flood control and provided strong support for the drainage design. According to the characteristics of overseas projects, some factors were comprehensively considered to suit local conditions, such as setting an elephant path, ecological environment protection and soil and water conservation. The impact on the environment was efficiently reduced by the measures of decreasing the depth of drainage channel, reducing spoil and adding a sedimentation tank. With the implementation of the One Belt and One Road strategy, more and more China foreign aid projects will be put into practice, and this project can provide reference for design of similar overseas airports.