基于弯沉的刚性道面板底脱空判定方法综述  

Overview on deflection-based identification methods of void beneath rigid pavements

作　　者：刘海伦[1,2] 凌建明[1,2] LIU Hailun;LING Jianming(Key Laboratory of Road and Traffic Engineering,Ministry of Education,Tongji University,Shanghai 201804,China;Key Laboratory of Infrastructure Durability and Operation Safety in Airfield of CAAC,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]同济大学民航飞行区设施耐久与运行安全重点实验室,上海201804

出　　处：《中国民航大学学报》2021年第5期28-33,共6页Journal of Civil Aviation University of China

基　　金：国家自然科学基金项目(51778480)。

摘　　要：为促进刚性道面板底脱空判定相关研究的发展,基于广泛文献调研和分析,系统梳理了国内外有关研究的发展现状、存在问题及研究方向。首先,介绍了弯沉法的起源及常用检测设备;其次,对基于弯沉的板底脱空判定方法进行了综述,详细分析和阐述了现有研究中发现的问题,并进一步指出各方法在实际应用中的局限性;最后,总结归纳了刚性道面板底脱空判定研究中存在的关键问题及研究方向,提出接缝传荷能力和脱空对弯沉影响的区别可作为今后研究的重点。This paper aims to deepen researches on void detection beneath rigid pavements.Detailed investigation and analysis are made with regard to the academic research status,existing problems and development prospect about correlational research both at home and abroad.Firstly,the origin of deflection-based method and the commonly used deflectometer are respectively introduced;Secondly,the deflection-based identification methods are reviewed and the problems and application limitations in existing researches are analyzed in detail;Finally,the key issues and research trend for deflection-based identification of void beneath slab are presented.The difference between the effect of joint load transfer and void beneath rigid pavements on deflection is suggested to be the focus of further researches.

关 键 词：刚性道面 板底脱空 弯沉 接缝传荷 

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