| 沥青路面Top-Down开裂评价 |
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| 引用本文： | 黄志涛. 沥青路面Top-Down开裂评价[J]. 工程建设与设计, 2008, 0(8) |
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| 作者姓名： | 黄志涛 |
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| 作者单位： | 厦门市市政建设开发公司,福建,厦门,361004 |
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| 摘 要： | 源于路表面的轮迹带附近的纵向开裂（Top-Down开裂）是重交通沥青路面的主要损坏类型之一，也是国际沥青路面界对道路损坏研究的新热点。为此建立了一个结合断裂力学和有限元知识的开裂模型，分析裂缝产生和扩展的机理。结果表明，Top-Down开裂的裂缝产生和扩展模式是张开型裂缝即拉应力损坏模式。
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| 关 键 词： | 沥青路面 Top-Down开裂 断裂力学 三维有限元 |
Evaluation of Top-Down Cracking in Asphalt Pavements |
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| HUANG Zhi-tao. Evaluation of Top-Down Cracking in Asphalt Pavements[J]. Construction & Design for Project, 2008, 0(8) |
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| Authors: | HUANG Zhi-tao |
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| Affiliation: | HUANG Zhi-tao |
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| Abstract: | Surface-initiated longitudinal wheelpath cracks(or Top-Down cracking) is one of the main damage types of heavy-duty asphalt pavements,it is also the very new hotspot of pavement failures research around the world road engineering.An approach is developed using a combination of fracture mechanics and finite element modeling to analyze the mechanism for crack initiation and propagation.Results indicated the crack initiation and propagation mode of Top-Down cracking is a tensile failure mechanism. |
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| Keywords: | asphalt pavements Top-Down cracking fracture mechanics 3D finite element |
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