漠河地区多年冻土地基温度场附面层参数研究  

Temperature field boundary layer parameters of permafrost subgrade in Mohe district

作　　者：戚春香[1] 李瑶 马琳 董彬 QI Chunxiang;LI Yao;MA Lin;DONG Bin(College of Airport Engineering,CAUC,Tianjin 300300,China)

机构地区：[1]中国民航大学机场学院,天津300300

出　　处：《中国民航大学学报》2020年第1期49-53,共5页Journal of Civil Aviation University of China

基　　金：国家自然科学基金项目(51178456);中央高校基本科研业务费专项(3122017037,3122016C007,3122016A005)。

摘　　要：综合考虑第二、三类上边界条件,运用ABAQUS模拟漠河地区机场跑道多年冻土地基温度场分布,探讨了附面层理论在漠河地区的应用,研究了漠河地区多年冻土地基温度场附面层参数及温度函数。研究结果表明:漠河地区机场跑道沥青混凝土道面附面层厚度为0.12 m,附面层底地基温度初始值为1.90℃,振幅为25.09℃;天然地面附面层厚度为0.06 m,附面层底地基温度初始值为1.03℃,振幅为25.20℃,扩展了附面层理论的应用地区,为漠河地区机场跑道地基稳定性研究提供了基础。Integrating the second and third upper boundary conditions,permafrost subgrade temperature field distribution of airfield runway in Mohe district is simulated by using ABAQUS,the application of boundary layer theory in Mohe district is discussed,the boundary layer parameters and temperature function of permafrost subgrade temperature field in Mohe district are studied.Result shows that the boundary layer thickness of asphalt concrete runway pavement in Mohe district is 0.12 m,initial value of subgrade temperature at the bottom of boundary layer is 1.90℃and the amplitude is 25.09℃;Thickness of boundary layer of natural ground is 0.06 m,initial value of subgrade temperature at the bottom of boundary layer is 1.03℃and the amplitude is 25.20℃.Finally,the applying districts of boundary layer theory is expanded,providing research basis for of airfield runway subgrade stability in Mohe district.

关 键 词：机场建设 多年冻土地基 附面层 温度场 漠河地区 

分 类 号：V351.11[航空宇航科学与技术—人机与环境工程] U416.1[交通运输工程—道路与铁道工程]