| 碎石化混凝土路面沥青加铺层结构的数值分析 |
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| 引用本文： | 张泉,陆阳,杨智敏,张华.碎石化混凝土路面沥青加铺层结构的数值分析[J].公路交通科技,2009,26(8). |
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| 作者姓名： | 张泉 陆阳 杨智敏 张华 |
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| 作者单位： | 1. 西南交通大学土木工程学院,四川,成都,610031
2. 四川省交通厅公路规划勘测设计研究院,四川,成都,610041 |
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| 基金项目： | 四川省交通厅科研计划项目 |
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| 摘 要： | 将沥青加铺层及碎石化混凝土视为连续及非连续颗粒介质,分别采用有限差分法与颗粒离散单元法模拟沥青加铺层及碎石结构层的力学行为,并采用耦合的方式,分析碎石化结构层与沥青加铺层对外荷载作用的联合力学响应.在满足边界相容条件与平衡条件的前提下,通过交界面上作用力与节点位移(速度)的传递,模拟了系统的荷载响应过程,并通过某工程实例对计算值和实测值进行了比较.结果表明:采用耦合原理计算的路表弯沉最大值与FWD实测结果较为接近,且两者沿径向分布规律相一致.
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| 关 键 词： | 道路工程 沥青加铺层结构 有限差分 颗粒离散元 |
Numerical Simulation of Asphalt Overlays on Rubblized PCC Slab |
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| ZHANG Quan,LU Yang,YANG Zhimin,ZHANG Hua.Numerical Simulation of Asphalt Overlays on Rubblized PCC Slab[J].Journal of Highway and Transportation Research and Development,2009,26(8). |
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| Authors: | ZHANG Quan LU Yang YANG Zhimin ZHANG Hua |
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| Institution: | 1.School of Civil Engineering;Southwest Jiaotong University;Chengdu Sichuan 610031;China;2.Sichuan Province Communications Department Highway Planning Survey;Design and Research Institute;Chengdu Sichuan 610041;China |
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| Abstract: | The mechanical behavior of asphalt overlays and the rubblized PCC slabs which were regarded as continuous and discontinuous medium respectively was simulated by a numerical method which combines the finite difference with DEM.The rubblized PCC slabs was described by the DEM,while asphalt overlays was considered by the finite difference method.Under the premise of the compatibility and equilibrium along the corresponding boundaries being satisfied in the computation process,the whole process of mechanical re... |
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| Keywords: | road engineering asphalt overlays on rubblized PCC slab finite difference DEM |
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