铁道标准设计2017，Vol.61Issue(9)：50-54,5.DOI:10.13238/j.issn.1004-2954.2017.09.012
现代有轨电车轨道路基联合优化分析
Joint Optimization Analysis of Tack and Subgrade of Modern tram
罗信伟 1冯青松 2柳宪东 1李平 1孙魁2
作者信息
- 1. 广州地铁设计研究院有限公司,广州510010
- 2. 华东交通大学铁路环境振动与噪声教育部工程研究中心,南昌330013
- 折叠
摘要
Abstract
In order to get the optimal design parameters of typical track subgrade,the space coupling model of track subgrade is established based on finite element analysis software ANSYS,and such five factors as fastener stiffness,track plate thickness,thickness of the support layer,the total thickness of subgrade and subgrade compaction index K30 related to the track subgrade stress and deformation effect distribution are studied with orthogonal test method.Based on the range analysis method,the importance order of factors affecting the technical index and economic index of the track subgrade design scheme is determined.At the same time,the total thickness of the subgrade is taken as an index to analyze the difference between the joint design method and the traditional roadbed design method.The results show that the track subgrade joint design method is more economical and reasonable than the traditional single design method;considering the technical and economical indexes of rail subgrade design,the optimal fastener stiffness is 40 kN/mm,the optimal thickness of track plate is 0.2 m,the optimal support layer thickness is 0.4 m,the optimal total thickness of subgrade is 0.8 m,and the optimal subgrade compaction index is K30(110 MPa/m).关键词
有轨电车/正交试验/优化分析/路基动应力Key words
Modern tram/Orthogonal experiment/Optimization analysis/Dynamic stress of subgrade分类
交通工程引用本文复制引用
罗信伟,冯青松,柳宪东,李平,孙魁..现代有轨电车轨道路基联合优化分析[J].铁道标准设计,2017,61(9):50-54,5.
