Deformation Characteristics of Permeable Asphalt Pavements under Repeated Loading

透水性沥青路面反复荷载变形特性

• 批准号: 22760330
• 负责人: NAKASHIMA Shinichiro
• 金额: $ 2.5万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760330/
• 关键词: 透水性舗装; 力学耐久性; 路盤; 路床; 模型実験; アスファルト舗装; 繰返し載荷; 変形特性

Permeable asphalt pavements have been used to reduce stormwater runoff from new development. However, considering application of the pavements into heavy traffic roadways, pavement durability is a great concern. In this study, cyclic plate loading tests have been carried out for model pavements simulating permeable asphalt pavements under unsaturated/ saturated conditions to investigate the effect of the combination of high saturation degree by seepage water and repeated loading on the long-term deformational behavior of permeable asphalt pavements. From the test results, regarding deformation of a pavement surface, it was confirmed that the permanent deformation of the saturated models was five or six times larger than that of the models with natural water content regardless of subgrade soil type. As a mechanism of the deformational behavior, in the case the subgrade was cohesive soil, large plastic deformation of the subgrade was a major cause. On the other hand in the case the subgrade was sandy soil, compression of the subbase could be a major cause, considering the test result that settlement of subgrade surface was very small and it did not depend on saturation degree.

渗透性沥青路面已被用于减少新开发的雨水径流。然而，考虑到路面应用于重交通道路，路面耐久性是一个很大的关注。通过模拟透水沥青路面的模型路面在非饱和/饱和条件下的循环平板加载试验，研究了渗透水高饱和度和重复加载对透水沥青路面长期变形特性的影响。根据试验结果，关于路面的变形，可以确认，无论路基土类型如何，饱和模型的永久变形都比具有自然含水量的模型的永久变形大五倍或六倍。作为变形行为的一种机制，在路基为粘性土的情况下，路基的大塑性变形是主要原因。另一方面，在路基为桑迪的情况下，考虑到路基表面的沉降很小并且不依赖于饱和度的测试结果，底基层的压缩可能是主要原因。

项目成果

繰返し載荷条件下における透水性舗装の力学挙動に関する基礎的検討

重复荷载条件下透水路面力学性能基础研究

• 发表时间: 2011
• 作者: Tsuyoshi Saito;Etsuo Sakai;Minoru Morioka;Nobuaki Otsuki;池田茜・殿村奏・中島伸一郎・清水則一
• 通讯作者: 池田茜・殿村奏・中島伸一郎・清水則一

繰返し載荷条件下における透水性舗装の変形特性に関する実験的検討

重复荷载条件下透水路面变形特性试验研究

• 发表时间: 2011
• 作者: Kei Sugita;Nobuhiro Chijiwa;KoichiMaekawa;池田茜・殿村奏・中島伸一郎・清水則一
• 通讯作者: 池田茜・殿村奏・中島伸一郎・清水則一

締固め条件および浸水条件が路床材料のCBRに及ぼす影響と透水性舗装の変形特性の検討

压实条件和渗水条件对路基材料CBR及透水路面变形特性的影响研究

• 发表时间: 2012
• 作者: 池田茜;山根慎平;中島伸一郎;清水則一;中田幸男
• 通讯作者: 中田幸男