| 刚柔复合路面结构弯沉盆形态分析 |
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| 引用本文： | 侯芸,毛菊良,郭忠印.刚柔复合路面结构弯沉盆形态分析[J].同济大学学报(自然科学版),2007,35(2):193-198. |
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| 作者姓名： | 侯芸 毛菊良 郭忠印 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 在建立了刚柔复合路面结构模型的基础上，应用三维有限元动力学的基本方法，对动载FWD（failing weight deflectometer,落锤式弯沉仪）作用下刚柔复合路面结构路表面的弯沉盆的形态进行了分析．探讨了各层模量、厚度、脱空以及土工织物对弯沉盆形态的影响，总结了不同情况下弯沉盆形态的变化，并提出了根据弯沉盆形态判别路面结构参数的思路．
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| 关 键 词： | 刚柔复合路面 弯沉盆形态 三维有限元 落锤式弯沉仪荷载 动态弯沉 |
| 文章编号： | 0253-374X（2007）02-0193-06 |
| 修稿时间： | 2005-06-08 |
Shape of Dynamic Deflection Basin of Stiff-Flexible Bonding Pavement Subjected to Dynamic Load |
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| HOU Yun,MAO Juliang,GUO Zhongyin.Shape of Dynamic Deflection Basin of Stiff-Flexible Bonding Pavement Subjected to Dynamic Load[J].Journal of Tongji University(Natural Science),2007,35(2):193-198. |
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| Authors: | HOU Yun MAO Juliang GUO Zhongyin |
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| Institution: | Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China |
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| Abstract: | Based on the model of stiff-flexible bonding pavement,an analysis is made of the shape of dynamic deflection basin of stiff-flexible bonding pavement subjected to dynamic loads falling weight deflectometer(FWD) on the basis of the three-dimensional(3D) finite-element method in combination with Newmark integration scheme.A discussion is held on the effect of layered module,thickness,underslab void and Geotextile on the shape of dynamic deflection basin. The law of the shape of dynamic deflection basin depended on various cases is summarized.At last,the paper presents the method of evaluating parameters of pavement structure according to the shape of dynamic deflection basin. |
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| Keywords: | stiff-flexible bonding pavement shape of dynamic deflection basin three-dimensional(3D) finite-element method falling weight deflectometer(FWD) load dynamic deflection |
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