交通运输研究Issue(2)：81-89,96,10.DOI:10.16503/j.cnki.2095-9931.2015.02.015
移动荷载作用下长大纵坡饱和沥青路面的水力耦合分析
Coupled Hydro-Mechanical Analysis of Saturated Asphalt Pavement at Longitudinal Long Slope under Moving Traffic Loads
王海峰 1但汉成 2滕旭秋3
作者信息
- 1. 宁夏公路建设管理局，宁夏 银川 750000
- 2. 中南大学 土木工程学院，湖南 长沙 410075
- 3. 兰州交通大学，甘肃 兰州 730070
- 折叠
摘要
Abstract
In order to reveal the mechanism of water-induced damage to longitudinal slope saturated as⁃phalt pavement, based on the Biot Consolidation Theory and characteristics of the longitudinal slope in rainy regions, the hydro-mechanical coupled mode and hydro-mechanical coupled governing equations with two-dimensional three-layer system of"Surface-Base-Subgrade"of saturated asphalt pavement be⁃ing subject to moving traffic loads were established. With the boundary condition that the bottom of the surface could completely drain, the influence of vehicle load, driving speed and longitudinal slope on dis⁃tribution of normal stress, pore-water pressure, shear stress, surface course displacement and other phys⁃ical quantities were analyzed comprehensively and systematically, offering the theoretical foundation and reference to the design of longitudinal slope asphalt pavement structure. The results show that the vehi⁃cle load and moving traffic loads speed have significant influence on the normal stress, pore water pres⁃sure, shear stress and surface displacement, and the longitudinal slope has almost no impact on the nor⁃mal stress and pore water pressure, shear stress and surface displacement.关键词
长大纵坡/饱和沥青路面/移动荷载/水力耦合/路面结构设计Key words
longitudinal long slope/saturated asphalt pavement/moving traffic load/hydro-mechan-ical coupling/pavement structure design分类
交通工程引用本文复制引用
王海峰,但汉成,滕旭秋..移动荷载作用下长大纵坡饱和沥青路面的水力耦合分析[J].交通运输研究,2015,(2):81-89,96,10.
