[1]闫卫红,孟枫林,董忠红..移动荷载下半刚性基层沥青路面剪应变研究[J].郑州大学学报(工学版),2010,31(02):51.[doi:10.3969/j.issn.1671-6833.2010.02.012]
　Yan Weihong,Meng Fenglin,Dong Zhonghong.Study on shear strain of semi-rigid base asphalt pavement under moving load[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):51.[doi:10.3969/j.issn.1671-6833.2010.02.012]
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移动荷载下半刚性基层沥青路面剪应变研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
31卷
期数:
2010年02期
页码:
51
栏目:
出版日期:
2010-02-02

文章信息/Info

Title:
Study on shear strain of semi-rigid base asphalt pavement under moving load
作者:
闫卫红; 孟枫林; 董忠红.
河南省交通规划勘察设计院,河南,郑州,450052, 河南德郑高速公路有限公司,河南,开封,475200, 长安大学,道路施工与装备教育部重点试验室,陕西,西安,710064
Author(s):
Yan Weihong; Meng Fenglin; Dong Zhonghong
关键词:
道路工程;  剪应变;  动力响应;  轴重;  速度;  胎压
Keywords:
DOI:
10.3969/j.issn.1671-6833.2010.02.012
文献标志码:
A
摘要:
为了研究半刚性基层沥青路面早期破坏现象,采用移动荷载下黏弹性层状体系动力学模型,分析典型路面结构的动力响应,研究轴重、速度和胎压对面层底部剪应变和面层内部剪应变分布的影响.结果发现,随着轴重和胎压的增加,当速度减小时,面层内部剪应变和面层底部剪应变均增加;轴重较小时,车辆对路面产生的破坏主要发生在上中面层,而轴重较大时,产生的破坏主要发生在中下面层:胎压的变化对2-8 em深度范围内的剪应变影响严重,随着胎压的升高,出现最大剪应变的深度位置减小.
Abstract:
In order to study the early failure phenomenon of semi-rigid base asphalt pavement, the dynamic response of typical pavement structure was analyzed by using the dynamic model of viscoelastic layered system under moving load, and the effects of axle load, velocity and tire pressure on the shear strain at the bottom of the surface layer and the internal shear strain distribution of the surface layer were studied. The results show that with the increase of axle load and tire pressure, when the speed decreases, the internal shear strain of the surface layer and the shear strain of the bottom layer of the surface layer increase. When the axle load is small, the damage caused by the vehicle on the road surface mainly occurs in the upper and middle surface layers, while when the axle load is large, the damage mainly occurs in the middle and lower layers: the change of tire pressure has a serious impact on the shear strain in the depth range of 2-8 em, and with the increase of tire pressure, the depth position of the maximum shear strain decreases.

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更新日期/Last Update: 1900-01-01