Temperature field boundary layer parameters ofpermafrost subgrade in Mohe district#br#

Abstract

Abstract: 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.

Key words: airport construction, permafrost subgrade, boundary layer, temperature field, Mohe district

CLC Number:

QI Chunxiang, LI Yao, MA Lin, DONG Bin. Temperature field boundary layer parameters ofpermafrost subgrade in Mohe district#br#[J]. Journal of Civil Aviation University of China, 2020, 38(1): 49-53.

References 16

[1]	GOERING D J, KUMAR P. Winter-time convection in open-graded embankments[J]. Cold Regions Science and Technology, 1996, 24(1):57-74.
[2]	ANDREW T. Permafrost in Canada’s subarctic region of northern Ontario[D]. Toronto: Geography University of Toronto，2010.
[3]	KUDRIAVTCEV S, VALTSEVA T, KAZHARSKYI A, et a1. Predictive modeling of the permafrost thermal regime in Russian railroad subgrade support systems[J]. Sciences in Cold and Arid Regions, 2013, 5(4): 404-407.
[4]	朱林楠. 高原冻土区不同下垫面的附面层研究[J]. 冰川冻土, 1988,10(1): 8-14.
[5]	金龙, 汪双杰, 陈建兵, 等. 基于变形分析的多年冻土地区路基高度效应研究[J]. 中外公路, 2013, 33(3): 22-28.
[6]	刘伟. 青藏高原黑色宽幅路基温度场分布规律及路基变形研究[D]. 北京: 北京交通大学, 2014.
[7]	曹元兵, 盛煜, 吴吉春, 等. 上边界条件对多年冻土地温场数值模拟结果的影响分析[J]. 冰川冻土, 2014, 36(4): 802-810.
[8]	白青波. 附面层参数标定及冻土路基水热稳定数值模拟方法初探[D]. 北京: 北京交通大学, 2015.
[9]	杨简. 机场跑道多年冻土地基温度场研究[D]. 天津: 中国民航大学, 2017.
[10]	汤涛, 马涛, 黄晓明, 等. 青藏高速公路宽幅路基温度场模拟分析[J]. 东南大学学报(自然科学版), 2015, 45(4): 799-804.
[11]	中国民航机场建设集团公司. 民用机场沥青道面设计规范: MH/T5010-2017[S]. 北京: 中国民航出版社, 2018.
[12]	李金明. 气候变暖对大小兴安岭多年冻土路基稳定性的影响[D].西安: 长安大学, 2009.
[13]	黑龙江省寒地建筑科学研究院, 大连阿尔滨集团有限公司. 冻土地区建筑地基基础设计规范: JGJ 118-2011[S]. 北京: 中国建筑工业出版社, 2011.
[14]	徐学祖, 王家澄, 张立新. 冻土物理学[M]. 北京: 科学出版社, 2001.
[15]	王芳. 博牙高速公路岛状多年冻土地区路基沉降处治技术研究[D]. 西安: 长安大学, 2011.
[16]	吴赣昌. 半刚性路面温度应力分析[M]. 北京: 科学出版社, 1995.