[1]傅搏峰,周志刚,陈晓鸿,等.沥青路面水损害疲劳破坏过程的数值模拟分析[J].郑州大学学报(工学版),2006,27(01):51-58.[doi:10.3969/j.issn.1671-6833.2006.01.013]
　Fu Bofeng,ZHOU Zhigang,CHEN Xiaohong,et al.Numerical simulation analysis of fatigue failure process of asphalt pavement water damage[J].Journal of Zhengzhou University (Engineering Science),2006,27(01):51-58.[doi:10.3969/j.issn.1671-6833.2006.01.013]

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沥青路面水损害疲劳破坏过程的数值模拟分析()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

27

期数:

2006年01期

页码:

51-58

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Numerical simulation analysis of fatigue failure process of asphalt pavement water damage

作者:

傅搏峰; 周志刚; 陈晓鸿; 等.

同济大学交通运输工程学院,上海,200000, 长沙理工大学公路学院,湖南,长沙,410076, 山东路桥集团有限公司,山东,济南,250000

Author(s):

Fu Bofeng; ZHOU Zhigang; CHEN Xiaohong; etc

关键词:

沥青路面;  水损害;  孔隙水压力;  疲劳损伤;  有限元法

Keywords:

asphalt pavement;  water damage;  pore water pressure;  fatigue injury;  Finite element method

DOI:

10.3969/j.issn.1671-6833.2006.01.013

文献标志码:

A

摘要:

以比奥渗流固结理论和各向同性线弹性损伤理论及疲劳损伤理论为基础,提出沥青路面的水损害力学分析模型,运用轴对称有限元方法对力学模型进行求解,并编制有限元程序进行数值模拟分析.重点分析了孔隙水压力对沥青路面受力状态的影响,以及在有孔隙水存在的情况下沥青路面在车载作用下的疲劳损伤过程.计算结果表明,沥青面层内的孔隙水压力与面层的渗透系数、面层厚度以及车辆行驶速度等有密切关系.当路表孔隙饱水时,在荷载作用下,孔隙水的存在会导致路面结构应力集中加剧,在荷载的反复作用之下,导致疲劳开裂破坏,加速路表病害的出现.

Abstract:

Based on Bio seepage consolidation theory, isotropic linear elastic damage theory and fatigue damage theory, a mechanical analysis model of water damage of asphalt pavement is proposed, the axisymmetric finite element method is used to solve the mechanical model, and a finite element program is prepared for numerical simulation analysis. The influence of pore water pressure on the stress state of asphalt pavement and the fatigue damage process of asphalt pavement under the action of vehicle in the presence of pore water were analyzed. The calculation results show that the pore water pressure in the asphalt surface layer is closely related to the permeability coefficient, surface thickness and vehicle driving speed of the surface layer. When the pores of the road surface are saturated with water, under the load, the presence of pore water will lead to the intensification of the stress concentration of the pavement structure, and under the repeated action of the load, it will lead to fatigue cracking and failure, and accelerate the emergence of road surface diseases.

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