摘要
为研究机场水泥混凝土道面动态弯沉受温度变化影响的规律,在机场飞行区内选取水泥板连续24h测试道面弯沉的情况。分析道面板中、板边、板角弯沉值,接缝传荷系数及脱空判定值与路表温度变化之间的关系。结果表明:板中弯沉几乎不受路表温度变化影响;板边弯沉、板角弯沉、脱空判定值受路表温度变化影响显著,且与路表温度变化规律呈负相关;假缝类道面接缝传荷能力受温度影响显著,企口缝类道面则基本不受影响。
To study the airport concrete pavement dynamic deflection behavior due to daily temperature variations,slabs in aircraft movement area are selected to test per hour one day.Relations between slab interior deflection,slab side deflection,slab corner deflection,load transfer efficiency and pavement surface temperature variations are analyzed respectively.Results indicate that slab interior deflection barely varied as temperature changed.Besides,side deflection,corner deflection,voids ratio are varied considerably as pavement surface temperature changes in a negative correlation.Meanwhile,the dummy joint pavement load transfer efficiency is affected by temperature significantly,and the tongue and groove joint pavement are almost unaffected.
作者
刘海伦
李萌
杜浩
LIU Hailun;LI Meng;DU Hao(Key Laboratory of Road and Traffic Engineering,Ministry of Education,Tongji University,Shanghai 201804,China;Hongqiao International Airport Inc,Shanghai Airport(Group)Co.Ltd.,Shanghai 200335,China;Shanghai Tongke Traffic Technology Co.Ltd.,Shanghai 200092,China)
出处
《中国民航大学学报》
CAS
2018年第3期18-21,30,共5页
Journal of Civil Aviation University of China
基金
国家自然科学基金项目(51778480)
关键词
机场
水泥混凝土道面
弯沉测试
温度影响
接缝传荷
板底脱空
airport
concrete pavement
deflection test
temperature effect
joint load transfer
void beneath slab
