Shoulder air convection embankments (ACEs) are sufficient to counter the effect of ground staying relatively warm due to the insulation of snow accumulation on side slopes of northern transportation infrastructure. However, little information is available for the design procedure. This paper aims to propose new design guidelines and an engineering design chart to quantify the heat extraction capacity of shoulder ACEs. The tested shoulder ACE, constructed on the Alaska Highway at Beaver Creek, Yukon, in 2008, provided valuable data for the assessment of field performance and model development. Thermistor strings were installed under the centerline and under the side slope. Measurements indicated that the cooling of ground soils was significant mainly under the side slope during the monitoring years from 2009 to 2013. The data collected were also used to calibrate a coupled conduction-convection model to reproduce the thermal conditions and the changing temperature trend in the subgrade. An engineering design chart was developed based on the calibrated model, and was successfully validated using the thermal data from the Puvirnituq airstrip in Northern Quebec, Canada.

由于北部交通基础设施边坡积雪的隔热作用，肩部空气对流路堤 (ACE) 足以抵消地面保持相对温暖的影响。然而，关于设计程序的信息很少。本文旨在提出新的设计指南和工程设计图，以量化肩部 ACE 的排热能力。经过测试的路肩 ACE 于 2008 年在育空地区 Beaver Creek 的阿拉斯加高速公路上建造，为评估现场性能和模型开发提供了宝贵的数据。热敏电阻串安装在中心线下方和边坡下方。测量表明，2009-2013年监测年间，地表土体降温主要发生在边坡下方。收集的数据还用于校准耦合传导-对流模型，以重现路基中的热条件和温度变化趋势。基于校准模型开发了工程设计图，并使用来自加拿大魁北克北部 Puvirnituq 简易机场的热数据进行了成功验证。