| 旧路加宽路面结构适用性分析 |
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| 引用本文： | 李春明.旧路加宽路面结构适用性分析[J].北方交通,2011(11):31-33. |
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| 作者姓名： | 李春明 |
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| 作者单位： | 辽宁省交通科学研究院,沈阳,110015 |
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| 摘 要： | 应用弹性层状体系理论对路面结构在不均匀沉降条件下的附加应力状况进行了计算。计算结果表明,在不均匀沉降位移作用下,降低基层材料模量,有利于路面各层合理受力;半刚性基层容易引起附加应力过大而产生结构性破坏;柔性基层更适合在旧路加宽路面结构中使用。
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| 关 键 词： | 道路工程 附加应力 弹性层状体系理论 柔性基层 不均匀沉降 |
Applicability Analysis of Existing Widening Pavement Structure |
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| Abstract: | Additional stress of pavement structure under differential settlement is calculated with elastic layered system theory.The result shows that under the effect of differential settlement displacement,decreasing modulus of base course material is helpful for reasonable stress of each layer;semi-rigid base course easily leads to large additional stress which could cause structure damage;flexible base course is moreapplicable for existing widening pavement structure. |
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| Keywords: | Highway engineering Additional stress Elastic layered system theory Flexible base course Differential settlement |
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