| 降雨入渗时沥青路面流固耦合作用的力学响应 |
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| 引用本文： | 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): 1141-1144,1148. DOI: 10.3969/j.issn.1674-0696.2012.06.11 |
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| 作者姓名： | 吴国雄 周宇 杨锐 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金项目,教育部博士点基金项目 |
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| 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.
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| 关 键 词： | 沥青路面 降雨入渗 渗流规律 流固耦合 力学响应 |
Mechanical Response of Asphalt Pavement under Fluid-Solid Coupling in the Case of Rainfall Infiltration |
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| 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, 2012, 31(6): 1141-1144,1148. DOI: 10.3969/j.issn.1674-0696.2012.06.11 |
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| Authors: | Wu Guoxiong Zhou Yu Yang Rui |
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| Affiliation: | 1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China; 2.Chengdu Hydroelectric Investigation & Design Institute of SPC,Chengdu 610072,Sichuan,China) |
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| 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 reversal. |
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| Keywords: | asphalt pavement rainfall infiltration seepage rule fluid-solid coupling mechanical response |
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