| 无碴轨道路基支承刚度测试合理加载面积初探 |
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| 引用本文： | 相颖慧,罗强,魏永幸.无碴轨道路基支承刚度测试合理加载面积初探[J].铁道建筑技术,2007(5):16-18,22. |
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| 作者姓名： | 相颖慧 罗强 魏永幸 |
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| 作者单位： | 1. 西南交通大学道路与铁道工程系,成都,610031
2. 铁道第二勘察设计院地质路基处,成都,610031 |
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| 摘 要： | 无碴轨道结构将松散的道碴换成了刚度巨大的钢筋混凝土材料,使得无碴轨道结构对路基的变形和刚度极其敏感,因此路基面的支承刚度是路基上铺设无碴轨道的重要技术条件之一。根据无碴轨道结构特点及路基动应力的衰减特性,对无碴轨道路基支承刚度的测试方法进行了初探,对路基支承刚度合理加载面积进行了讨论。
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| 关 键 词： | 高速铁路 路基结构 无碴轨道 支承刚度 |
| 文章编号： | 1009-4539(2007)05-0016-03 |
| 修稿时间： | 2007年2月12日 |
Research on the Reasonable Loading Area for Subgrade Support Stiffness Test of the Ballastless Track |
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| Xiang Yinghui,Luo Qiang,Wei Yongxing.Research on the Reasonable Loading Area for Subgrade Support Stiffness Test of the Ballastless Track[J].Railway Construction Technology,2007(5):16-18,22. |
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| Authors: | Xiang Yinghui Luo Qiang Wei Yongxing |
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| Abstract: | Changing its loose ballast into reinforced concrete of a huge stiffness,the ballastless track is extremely sensitive to the distortion and stiffness of the subgrade.Therefore,the subgrade support stiffness is an important technological condition for paving the ballastless track on the subgrade.According to the characteristics of the ballastless track structure and its influence on the dynamic stress of the subgrade,this paper researches on testing methods for subgrade support stiffness of the ballastless track and discusses reasonable loading area for testing the support stiffness of subgrade. |
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| Keywords: | high-speed railway subgrade structure ballastless track support stiffness |
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