| 路基上单元板式轨道底座板底脱空对轨道受力的影响分析 |
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| 引用本文： | 张志远.路基上单元板式轨道底座板底脱空对轨道受力的影响分析[J].路基工程,2013,0(3):64-67. |
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| 作者姓名： | 张志远 |
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| 作者单位： | 上海铁路局上海高铁维修段，上海 200439 |
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| 摘 要： | 针对高速铁路路基上单元板式无砟轨道底座板底脱空病害，运用有限元法，建立了底座板脱空力学分析模型，计算分析了不同脱空长度对轨道结构和路基受力的影响，并考虑其对轨道结构使用寿命的影响。研究结果表明:底座板底脱空长度不应超过0.81 m。
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| 关 键 词： | 高铁路基 单元板式轨道 底座板 板底脱空 力学分析 |
| 收稿时间： | 2019-11-12 |
Analysis on Influence of Void Beneath Bottom Slab of Fragment Slab Track at Subgrade on Stress of the Track |
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| Authors: | ZHANG Zhiyuan |
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| Institution: | ZHANG Zhiyuan(Shanghai Express Railway Maintenance Section of Shanghai Railway Bureau,Shanghai 200439,China) |
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| Abstract: | As the void disease occures beneath bottom slab of fragment slab ballastless track at high speed railway subgrade, herein the finite element method was used to establish the mechanical analysis model thereof for analyzing the influence of different void length on the track structure and the subgrade force in consideration of the effect on the service life of the track structure. The results show that the length of such void beneath slab shall not be more than 0.81 m. |
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| Keywords: | high-speed railway subgrade fragment slab track bottom slab void beneath slab mechanical analysis |
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