| 泡沫沥青冷再生基层路面结构力学性能分析 |
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| 引用本文： | 李秀君,张永平,拾方治.泡沫沥青冷再生基层路面结构力学性能分析[J].同济大学学报(自然科学版),2009,37(1). |
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| 作者姓名： | 李秀君 张永平 拾方治 |
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| 作者单位： | 1. 同济大学,教育部道路与交通工程重点实验室,上海,200092;上海理工大学,城市建设与环境工程学院,上海,200093
2. 杭州市公路管理局,浙江,杭州,310004 |
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| 摘 要： | 通过ANSYS有限元法对泡沫沥青再生混合料用于不同路面结构的力学特性进行对比分析,得知泡沫沥青再生基层在不同路面结构组合下、在不同养生过程中的应力应变都有所不同.研究得出:泡沫沥青再生基层厚度不宜小于15 cm;泡沫沥青再生路面随着时间的推移,路面强度将不断增强;采用复合基层(柔性材料加半刚性材料)能明显增强路面的承载能力.
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| 关 键 词： | 泡沫沥青 冷再生 有限元 力学性能 |
Analysis of Mechanical Performance of Cold Recycled Pavement with Foamed Asphalt |
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| LI Xiujun,ZHANG Yongping and SHI Fangzhi.Analysis of Mechanical Performance of Cold Recycled Pavement with Foamed Asphalt[J].Journal of Tongji University(Natural Science),2009,37(1). |
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| Authors: | LI Xiujun ZHANG Yongping and SHI Fangzhi |
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| Institution: | Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China;College of Urban Construction and Environmental Engineering, University of Shanghai for Science and Technology, Shanghai 200093 China;Highway Administration Bureau of Hangzhou, Hangzhou 310004,China;Highway Administration Bureau of Hangzhou, Hangzhou 310004,China |
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| Abstract: | Based on a comparative study and an anlysis of the mechanical performance of the foamed asphalt recycled mixture for different road structures with ANSYS finite element method, a conclusion is drawn that the stress and strain of the foamed asphalt recycled base are different under different road combinations at different curing periods. Results show that the thickness of the foamed asphalt recycled base should not be less than 15 cm;the foamed asphalt pavement is strengthening with time.Composite base (Flexible materials + Semi rigid materials) can increase the carrying capacity of the road significantly. The conclusion of the paper contributes a great to the guiding structure design of foamed asphalt recycled pavement. |
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| Keywords: | foamed asphalt cold recycling finite element mechanical performance |
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