Mechanical Response of Asphalt Pavement under Fluid-Solid Coupling
in the Case of Rainfall Infiltration

doi:10.3969/j.issn.1674-0696.2012.06.11

Journal of Chongqing Jiaotong University(Natural Science) ›› 2012, Vol. 31 ›› Issue (6): 1141-1144.DOI: 10.3969/j.issn.1674-0696.2012.06.11

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Mechanical Response of Asphalt Pavement under Fluid-Solid Coupling in the Case of Rainfall Infiltration

Wu Guoxiong¹，Zhou Yu¹，Yang Rui²

1. School of Civil Engineering ＆ Architecture，Chongqing Jiaotong University，Chongqing 400074，China; 2. Chengdu Hydroelectric Investigation ＆ Design Institute of SPC，Chengdu 610072，Sichuan，China)

Received:2011-12-01 Revised:2012-07-19 Online:2012-12-15 Published:2014-10-31

降雨入渗时沥青路面流固耦合作用的力学响应

吴国雄¹，周宇¹，杨锐²

1. 重庆交通大学土木建筑学院，重庆400074; 2. 中国水电顾问集团成都勘测设计研究院，四川成都610072

作者简介:吴国雄(1966—)，男，湖北崇阳人，教授，博士生导师，主要从事道路工程教学与科研工作。E-mail:wgx_ph.d@163.com。

Abstract

Abstract: Through the finite element software ABAQUS，the finite element model of asphalt pavement seepage under the condition of rainfall infiltration is established and the corresponding seepage rule and seepage field distribution state are got．On the basis of establishing the reasonable rainfall seepage field border，porous media fluid-solid coupling theory is applied to analyze the mechanical response of the asphalt pavement in the case of seepage and driving loading． Results indicate that: rainfall infiltration process will lead to the asphalt pavement internal saturation and a significant change on pore water pressure;the rainfall infiltration of the asphalt pavement internal stress index possesses wave characteristics under the function of dynamic loading，and pore water pressure and velocity appear larger positive and negative eversal．

Key words: asphalt pavement, rainfall infiltration, seepage rule, fluid-solid coupling, mechanical response

摘要： 应用ABAQUS 软件建立降雨入渗条件下的沥青路面渗流有限元模型，得到相应的渗流规律和渗流场的分布状态; 在建立合理的降雨渗流场边界的基础上，运用多孔介质流固耦合理论分析了沥青路面在渗水和行车荷载作用下的力学响应。研究表明: 降雨入渗过程将会导致沥青路面内部饱和度和孔隙水压力出现显著的变化; 在动态荷载的作用下，降雨入渗后的沥青路面内部各项应力指标呈现波动特性，孔隙水压力与流速出现了较大的正、负逆转。

关键词: 沥青路面, 降雨入渗, 渗流规律, 流固耦合, 力学响应

CLC Number:

U416
U414

Wu Guoxiong，Zhou Yu，Yang Rui. Mechanical Response of Asphalt Pavement under Fluid-Solid Coupling in the Case of Rainfall Infiltration[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(6): 1141-1144.

吴国雄，周宇，杨锐. 降雨入渗时沥青路面流固耦合作用的力学响应[J]. 重庆交通大学学报（自然科学版）, 2012, 31(6): 1141-1144.

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Mechanical Response of Asphalt Pavement under Fluid-Solid Coupling in the Case of Rainfall Infiltration

降雨入渗时沥青路面流固耦合作用的力学响应

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