| 考虑孔隙水压力不利影响的沥青路面结构组合分析 |
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| 引用本文： | 郭乃胜,赵颖华,谭忆秋,邓融.考虑孔隙水压力不利影响的沥青路面结构组合分析[J].大连海事大学学报(自然科学版),2011(2). |
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| 作者姓名： | 郭乃胜 赵颖华 谭忆秋 邓融 |
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| 作者单位： | 大连海事大学道路与桥梁工程研究所;哈尔滨工业大学交通科学与工程学院; |
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| 基金项目： | “十一五”国家科技支撑计划项目(2008BAG10B02); 辽宁省交通重点科技项目(200917) |
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| 摘 要： | 为研究水对不同路面结构的影响程度,基于多孔介质理论,选取16种典型高速公路沥青路面结构组合方案,建立动载作用下饱水沥青路面有限元模型,对路面结构内部层间最大孔隙水压力进行分析,并以孔隙水压力不利影响最小化建议适用于不同地区沥青路面结构的组合方案.结果表明,方案八(OGFC-13+AC-20+ATPB-25+水泥稳定碎石+级配碎石)的路面结构孔隙水压力最小;设置ATPB路面结构层能够有效减小孔隙水压力;贫混凝土作为基层的孔隙水压力较水泥稳定碎石的小.据此建议:在我国南方多雨地区,采用方案八的结构组合方案;在我国少雨地区,采用AC型沥青混合料为表面层和二灰土为基层;在我国降雨集中、重交通且经济较发达地区,采用SMA为表面层和贫混凝土为基层;重点考虑沥青路面水损坏时,需综合不同的路面结构方案确定底基层类型.
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| 关 键 词： | 沥青路面 孔隙水压力 结构组合 有限元法(FEM) |
Asphalt pavement structure combination considering adverse effect of pore pressure |
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| GUO Naisheng,ZHAO Yinghua,TAN Yiqiu,DENG Rong.Asphalt pavement structure combination considering adverse effect of pore pressure[J].Journal of Dalian Maritime University,2011(2). |
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| Authors: | GUO Naisheng ZHAO Yinghua TAN Yiqiu DENG Rong |
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| Institution: | GUO Naisheng1,ZHAO Yinghua1,TAN Yiqiu2,DENG Rong1(1.Institute of Road and Bridge Engineering,Dalian Maritime University,Dalian 116026,China,2.School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150090,China) |
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| Abstract: | To investigate the effect of moisture on different asphalt pavement structures,the maximum interface pore pressure were analyzed by using the finite element models considering 16 structure projects subjected to dynamic load based on saturated porous media theory.The asphalt pavement structures were proposed according to the minimal adverse effect of pore pressure on pavements in different regions of China.Results show that the investigation project 8(OGFC-13+AC-20+ATPB-25+ cement stabilized gravel base + gr... |
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| Keywords: | asphalt pavement pore pressure structure combination finite element method(FEM) |
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