| 基于有限元的水泥路面冰冻损伤机理 |
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| 引用本文： | 方恒亮,赵茂才,张海,高士贤.基于有限元的水泥路面冰冻损伤机理[J].公路交通科技,2011,28(8):13-18. |
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| 作者姓名： | 方恒亮 赵茂才 张海 高士贤 |
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| 作者单位： | 哈尔滨工业大学交通科学与工程学院,黑龙江哈尔滨,150090 |
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| 基金项目： | 国家科技支撑计划项目(2008BAG10B02) |
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| 摘 要： | 为了研究水泥混凝土路面冰冻损伤机理,对混凝土材料的微观结构进行了研究,并对水泥混凝土路面温度场进行了有限元分析.基于应力场、多孔体系渗流场和温度场的多物理场耦合理论,利用Comsol软件,对水泥混凝土路面内部结冰的现象进行了数值模拟.根据不同的降温速率、孔隙率、渗透系数和孔隙累积分布函数,设计了4组模型,每组4个模型进...
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| 关 键 词： | 道路工程 冰冻 有限元法 水泥混凝土路面 多场耦合 |
Damage Mechanism of Cement Pavement under Freezing Environment Based on FEM |
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| FANG Hengliang,ZHAO Maocai,ZHANG Hai,GAO Shixian.Damage Mechanism of Cement Pavement under Freezing Environment Based on FEM[J].Journal of Highway and Transportation Research and Development,2011,28(8):13-18. |
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| Authors: | FANG Hengliang ZHAO Maocai ZHANG Hai GAO Shixian |
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| Institution: | FANG Hengliang,ZHAO Maocai,ZHANG Hai,GAO Shixian(School of Transportation Science & Engineering,Harbin Institute of Technology,Harbin Heilongjiang 150090,China) |
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| Abstract: | For study of the damage mechanism of freezing in the cement concrete pavement,first,the micro-structure of concrete was studied,and the temperature field of cement concrete pavement was analyzed by finite element method.Then,the process of ice forming in the inner pavement was simulated by using software Comsol based on the multi-physical field coupling theory which related to stress field,pore media percolation field and temperature field.Four suites models(each suite contained 4 models) with different coo... |
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| Keywords: | road engineering freezing finite element method cement concrete pavement multi-field coupling |
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