| 镐头机拆除工况下机场水泥道面的力学行为 |
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| 引用本文： | 袁捷,张昊,凌建明,朱剑.镐头机拆除工况下机场水泥道面的力学行为[J].同济大学学报(自然科学版),2013,41(8):1225-1230. |
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| 作者姓名： | 袁捷 张昊 凌建明 朱剑 |
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| 作者单位： | 1. 同济大学道路与交通工程教育部重点实验室,上海,200092
2. 江苏省交通规划设计院,江苏南京,210005 |
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| 摘 要： | 以ABAQUS作为分析平台,建立了考虑接缝传荷以及层间接触效应的双板有限元分析模型,可用于模拟镐头机拆除工况下水泥道面的力学行为.针对机场典型拆除工艺参数及道面结构参数,系统分析了镐头机拆除工况下拆除板和周边保留板的变形、拉应力以及层间剪应力的分布特征,揭示了镐头机拆除工况下周边保留板发生破坏的力学机理.分析了面层厚度、接缝传荷能力等参数对拆除时道面力学响应的影响规律,提出了镐头机拆除施工应注意的问题.
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| 关 键 词： | 水泥道面 道面拆除 力学行为 有限单元法 |
| 收稿时间： | 2012/8/24 0:00:00 |
| 修稿时间： | 5/7/2013 12:00:00 AM |
Study of Mechanical Behaviors of Airfield PCC Slabs In Process of Breaking With Pickaxe Machine |
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| YUAN Jie,ZHANG Hao,LING Jian-ming and ZHU Jian.Study of Mechanical Behaviors of Airfield PCC Slabs In Process of Breaking With Pickaxe Machine[J].Journal of Tongji University(Natural Science),2013,41(8):1225-1230. |
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| Authors: | YUAN Jie ZHANG Hao LING Jian-ming and ZHU Jian |
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| Institution: | Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092,China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092,China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092,China;Traffic Planning and Design Institute of Jiangsu Province, Nanjing 210005, China |
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| Abstract: | Based on finite element method(FEM) software ABAQUS, a two slab analysis model with a consideration of the joint load transfer and interlayer contact condition is established, in which the model dimension, displacement boundary, load model, material model, joint load transfer are simplified. The model can be used to study the mechanical behavior of Portland cement concrete(PCC) pavement in process of breaking with pickaxe machine. Both deformation and tensile stress and interface shear stress of removal slab and reserved slab are calculated for typical breaking process parameter and pavement structure, the mechanism for destruction of reserved slab is also proposed. |
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| Keywords: | Portland cement concrete(PCC) pavement slab removing mechanical behavior finite element method |
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