| 高等级沥青路面表面裂纹扩展规律研究 |
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| 引用本文： | 江振华,张晓春,王军.高等级沥青路面表面裂纹扩展规律研究[J].现代交通技术,2006,3(6):1-3,12. |
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| 作者姓名： | 江振华 张晓春 王军 |
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| 作者单位： | 1. 东南大学交通学院,江苏,南京,210096
2. 江苏省交通科学研究院,江苏,南京,210017 |
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| 摘 要： | 针对路表小裂纹的实际状况，将小裂纹视为钱币型，建立了含小裂纹的三维力学计算模型，应用断裂力学的基本原理，研究了表面裂纹前缘各点J积分随荷载与裂缝的不同位置、不同加载方式及路面结构参数的变化规律。
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| 关 键 词： | 沥青路面 表面裂纹 断裂力学 J积分 |
| 文章编号： | 1672-9889（2006）06-0001-03 |
| 收稿时间： | 2006-04-18 |
| 修稿时间： | 2006-04-18 |
Research on the Law of Surface Crack Propagation in Asphalt Pavement |
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| Jiang Zhenhu,Zhang Xiaochun,Wang Jun.Research on the Law of Surface Crack Propagation in Asphalt Pavement[J].Modern Transportation Technology,2006,3(6):1-3,12. |
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| Authors: | Jiang Zhenhu Zhang Xiaochun Wang Jun |
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| Institution: | 1 .Transportation College, Southeast University, Nanjing 210096, China; 2.Jiangsu Transportation Research Institute, Nanjing 210017, China |
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| Abstract: | For the small surface crack in existence on top of the asphalt pavement,the paper established the 3D mechanics computational model including small crack by regarding the shape of the small crack as penny.By making use of fracture mechanics fundamental, the effect of the pavement parameters and the relative locations of the load and crack as well as loading styles on J integral of the front points of surface crack are studied. |
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| Keywords: | asphalt pavement surface crack fracture mechanics J integral |
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