| 基于下限定理的路面结构安定分析 |
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| 引用本文： | 孙阳,沈水龙,罗春泳.基于下限定理的路面结构安定分析[J].岩土力学,2010,31(11):3667-3670. |
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| 作者姓名： | 孙阳 沈水龙 罗春泳 |
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| 作者单位： | 上海交通大学,船舶海洋与建筑工程学院土木工程系,上海,200240;上海交通大学,国家海洋工程重点试验室,上海,200240 |
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| 基金项目： | 上海市重点学科建设项目资助（No. B208）；海洋工程国家重点实验室自主研究课题资助（No. GKZD010051）。 |
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| 摘 要： | 传统的以弹性理论和经验方法为基础的路面结构设计方法,对路面结构的安全性评价存在着不合理性。安定理论可为复杂荷载作用下的路面结构承载力分析提供理论依据,基于该定理发展了一种应用于路面结构的安定分析方法,并应用于2层路面结构的安定分析,计算给出了荷载作用方式、路面结构形式、材料性质变化对路面安定极限影响的定量分析结果,通过对比表明了安定分析应用于路面结构的可行性。安定极限可为路面结构的分析与设计提供一定的参考价值。
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| 关 键 词： | 路面结构 安定理论 下限定理 Mohr-Coulomb等面积圆屈服准则 |
| 收稿时间： | 2009-09-28 |
Shakedown analysis of pavement structures based on lower bound theorem |
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| SUN Yang,SHEN Shui-long,LUO Chun-yong.Shakedown analysis of pavement structures based on lower bound theorem[J].Rock and Soil Mechanics,2010,31(11):3667-3670. |
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| Authors: | SUN Yang SHEN Shui-long LUO Chun-yong |
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| Institution: | 1. Department of Civil Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | Present design method based on the elastic theory and experience is unreasonable while used to evaluate the safety of pavement structure. Shakedown theory can provide theoretical basis for bearing capacity analysis of pavements under complex loading. Based on the lower bound theorem of shakedown, a method for shakedown analysis of pavements has been presented. By applying the shakedown analysis of pavement, influence of load distribution, structural configuration, material properties of pavements on shakedown bearing limit are obtained. The analytical results show that the proposed method is valid for analyzing the pavement structure. Therefore, shakedown theorem can provide a useful tool for analysis and design of pavements. |
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| Keywords: | pavement structure shakedown theorem lower bound theorem Mohr-Coulomb equivalent area circle yield criterion |
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