| 粒料基层沥青路面土基压应变设计指标研究 |
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| 引用本文： | 高启聚,郭忠印,丛林.粒料基层沥青路面土基压应变设计指标研究[J].公路交通科技,2009,26(7). |
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| 作者姓名： | 高启聚 郭忠印 丛林 |
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| 作者单位： | 1. 山东省交通科学研究所,山东,济南,250031
2. 同济大学交通运输工程学院,上海,201804 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 分析了我国现行沥青路面弯沉值设计指标的特点与不足,提出了控制粒料基层沥青路面土基永久变形和路面车辙的土基项面压应变设计指标.结合我国的实际情况,拟定了典型粒料基层沥青路面结构,利用弹性层状体系计算程序BISAR3.0进行了力学参数分析.通过统计回归,建立了路面理论弯沉值与土基顶面压应变之间的回归公式;根据我国1978年的弯沉值设计公式和公式推导,建立了土基顶面压应变计算公式.利用AASHO试验路资料,通过与世界上有影响的土基顶面压应变计算公式进行了比较,论证了所建立的土基顶面压应变计算式的合理性与适用性.
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| 关 键 词： | 道路工程 土基项面压应变 统计回归与公式推导 粒料基层 沥青路面 设计指标 |
Research on Design Index of Compressive Strain on Top of Subgrade Soils in Asphalt Pavement with Granular Base |
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| GAO Qiju,GUO Zhongyin,CONG lin.Research on Design Index of Compressive Strain on Top of Subgrade Soils in Asphalt Pavement with Granular Base[J].Journal of Highway and Transportation Research and Development,2009,26(7). |
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| Authors: | GAO Qiju GUO Zhongyin CONG lin |
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| Institution: | 1.Shandong Communications Science Research Institute;Jinan Shandong 250031;China;2.School of Traffic and Transportation Engineering;Tongji University;Shanghai 201804;China |
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| Abstract: | Aimed at the characteristic and defect of current deflection value design index for asphalt pavement,design index of compressive strain on top of subgrade soils was put forward to control permanent deformation of subgrade soils and rutting in asphalt pavement with granular base.According to the practice in China,typical asphalt pavement structures with granular base were determined.Mechnical parameters were calculated by way of mul-layer elastic system calculation program BISAR3.0.Regression formula beteewn... |
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| Keywords: | road engeering compressive strain on top of subgrade soil statistics regression and formula derivation granular base asphalt pavement design index |
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