| 含应力吸收层的旧沥青路面加铺沥青层力学分析 |
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| 引用本文： | 江毅,华建湘,曾永旺,颜可珍.含应力吸收层的旧沥青路面加铺沥青层力学分析[J].中南公路工程,2010(3):4-9. |
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| 作者姓名： | 江毅 华建湘 曾永旺 颜可珍 |
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| 作者单位： | 湖南省衡岳高速公路建设开发有限公司;湖南大学土木工程学院道路所; |
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| 基金项目： | 国家自然科学基金资助(50808077); 中国博士后科学基金资助(20070411113) |
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| 摘 要： | 基于旧沥青路面加铺沥青面层的结构特点,采用有限元方法对设置应力吸收层的加铺层结构进行荷载、温度及耦合条件下的力学分析,并进一步分析了应力吸收层厚度、模量对计算结果的影响。研究结果表明：设置应力吸收层后,加铺层的荷载、温度及耦合应力均有较大的降低;应力吸收层的厚度、模量在不同荷载条件下对加铺层拉应力、剪应力有不同的影响,对其自身的影响也不尽相同。在加铺设计和施工时,可选用低模量、高变形材料作为应力吸收夹层,但应综合考虑以选取合适的材料参数。
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| 关 键 词： | 沥青加铺层 应力吸收层 荷载应力 温度应力 耦合应力 |
Stress Analysis of Asphalt Overlay on Old Asphalt Pavement with Anti-cracking Interlayer Containing Stress absorption layer |
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| JIANG Yi,HUA Jianxiang,ZENG Yongwang,YAN Kezhen.Stress Analysis of Asphalt Overlay on Old Asphalt Pavement with Anti-cracking Interlayer Containing Stress absorption layer[J].Central South Highway Engineering,2010(3):4-9. |
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| Authors: | JIANG Yi HUA Jianxiang ZENG Yongwang YAN Kezhen |
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| Institution: | JIANG Yi1,HUA Jianxiang1,ZENG Yongwang1,YAN Kezhen2(1.Hunan Heng-yue Free Construction and Development Corporation Ltd,Hengyang,Hunan 421900,China,2.College of Civil Engineering,Hunan University,Changsha,Hunan 410082,China) |
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| Abstract: | In order to simulate the load,thermal and coupled-field stress responses of overlay on old asphalt pavements,a model of asphalt overlay structure containing stress absorption layer is built,and then the model were analyzed by using finite element software.Then in the analysis process,the influence of thickness and module of stress absorption layer were represented.The results indicate that,when asphalt overlay structure containing stress absorption layer,the stress of overlay have a greater reduction in cou... |
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| Keywords: | Asphalt overlay Stress absorption layer Loading stress Thermal stress Coupled stress |
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