同济大学学报（自然科学版）2012，Vol.40Issue(6)：861-866,6.DOI:10.3969/j.issn.0253-374x.2012.06.010
机场水泥混凝土道面脱空判定及影响
Identification of Void Beneath Airport Cement Concrete Pavement and Its Influence
黄勇 1袁捷 2谭悦 2刘玉海2
作者信息
- 1. 成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059
- 2. 同济大学道路与交通工程教育部重点实验室,上海200092
- 折叠
摘要
Abstract
According to the field test data and theoretical calculation result, a standard based on high weight deflector (HWD) testing was established to identify void beneath airport cement concrete pavement. An analysis was made of the influence of all kinds of voids on loading stresses of airport cement concrete pavement with ABAQUS 3D-FEM model, and an example was given to show the influence of void on pavement's service life. The result shows that identification standard for void beneath slab edge is "slab edge deflection/ slab center defection＞1.8",and void identification standard for void beneath slab corner is "slab corner deflection/slab center defection＞3.0". When the void beneath slab becomes prominent loading stresses of airport cement concrete pavement will increase by over 250%, and the pavement's service life is shortened distinctly. The influence of the void area is not obvious on the early stage of void development, but it increases while the base response modulus of void region decreases.关键词
机场/水泥混凝土道面/脱空/判定标准/荷载应力/使用寿命Key words
airport/ cement concrete pavement/ void/identification criteria/ loading stresses/ service life分类
交通工程引用本文复制引用
黄勇,袁捷,谭悦,刘玉海..机场水泥混凝土道面脱空判定及影响[J].同济大学学报（自然科学版）,2012,40(6):861-866,6.
