| 季冻区悬臂式支挡路基温度场和应力场数值分析 |
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| 引用本文： | 付晓丹,夏琼,郭春香.季冻区悬臂式支挡路基温度场和应力场数值分析[J].路基工程,2019,0(1):7-11. |
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| 作者姓名： | 付晓丹 夏琼 郭春香 |
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| 作者单位： | 兰州交通大学土木工程学院,兰州,730070;兰州交通大学土木工程学院,兰州,730070;兰州交通大学土木工程学院,兰州,730070 |
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| 基金项目： | 冻土工程国家重点实验室开放基金（SKLFSE201607） |
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| 摘 要： | 路基土体冬季冻结体积膨胀，夏季融化产生沉陷，使路基常有病害发生，严重影响行车安全。L型挡墙作为一种轻型柔性预制支挡结构在适应冻胀融沉交替变形中有较大优势。运用有限元软件模拟季节冻土区悬臂式挡墙路基温度场与应力场分布，得到温度场曲线为一簇S型曲线，得到冻胀力分布规律为沿墙自上而下呈上小下大的三角形分布。
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| 关 键 词： | L型挡墙 季节冻土 冻胀力 路基温度场 数值分析 |
| 收稿时间： | 2019-11-10 |
Numerical Analysis of Temperature and Stress Fields in Subgrade with Cantilever Retaining Wall in Seasonally Frozen Regions |
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| Abstract: | The soil mass of subgrade is subject to frost heave in winter and thaw settlement in summer, leading to diseases arising therein frequently and endangering the traffic safety seriously. L-type retaining wall, as a light flexible prefabricated structure, has superiority to get with the alternate deformation from frost heave and thaw settlement. Herein finite element software was used to simulate the distribution of temperature and stress fields in the subgrade with cantilever retaining wall in seasonally frozen regions. The distribution law of frost heaving force was found to be big end down triangle along the wall. |
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