深季节冻土区列车行驶路基振动数值模拟研究

王子玉; 凌贤长; 惠舒清; 刘宏扬; 赵莹莹; 耿林

doi:10.13409/j.cnki.jdpme.2014.01.001

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深季节冻土区列车行驶路基振动数值模拟研究

更新时间：2025-12-11

- 深季节冻土区列车行驶路基振动数值模拟研究
- Numerical Simulation of Vibration Response of Railway Subgrade to Passing Train in Deep Seasonal Frozen Soil Region
- 防灾减灾工程学报 2014年34卷第1期页码：1-6
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（51174261、51078111）;铁道部科技研究开发计划课题（2009G010-E）资助
- DOI：10.13409/j.cnki.jdpme.2014.01.001
  中图分类号： 213.1
- 纸质出版：2014
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[1]王子玉,凌贤长,惠舒清,刘宏扬,赵莹莹,耿林.深季节冻土区列车行驶路基振动数值模拟研究[J].防灾减灾工程学报,2014,34(01):1-6.

王子玉, 凌贤长, 惠舒清, et al. Numerical Simulation of Vibration Response of Railway Subgrade to Passing Train in Deep Seasonal Frozen Soil Region[J]. 2014, 34(1): 1-6.
[1]王子玉,凌贤长,惠舒清,刘宏扬,赵莹莹,耿林.深季节冻土区列车行驶路基振动数值模拟研究[J].防灾减灾工程学报,2014,34(01):1-6. DOI： 10.13409/j.cnki.jdpme.2014.01.001.

王子玉, 凌贤长, 惠舒清, et al. Numerical Simulation of Vibration Response of Railway Subgrade to Passing Train in Deep Seasonal Frozen Soil Region[J]. 2014, 34(1): 1-6. DOI： 10.13409/j.cnki.jdpme.2014.01.001.

摘要

分析大庆深季节冻土区铁路路基的冬季现场加速度监测结果

获得了列车经过时铁路路基冻结地表振动加速度的时程特性及其衰减规律

并运用动力有限元方法进行了动力响应分析。研究结果表明:①随着列车行驶速度的增大

路基振动加速度亦增大

且重载货车振动响应大于高速客车;②列车行驶引起的路基振动加速度幅值

随着距线路中心距离的增加而迅速衰减;③应用有限元方法分析列车行驶路基振动特性是可行的。本文为研究深季节冻土区铁路路基振动特性提供了一种分析方法

对加深了解深季节冻土区铁路路基振动特性具有重要意义。

Abstract

Through the field monitoring experiment of railway subgrade in Daqing seasonal frozen region in winter

the vibration response of the subgrade and its attenuation law were investigated

and the dynamic finite element method was applied to dynamic response numerical calculation.The results show that（1）as train speeds increase

the subgrade vibration increases

and the vibration induced by a freight train is greater than that by apassenger train;（2）as the distance to the central line of the railway increases

the amplitude of vibration acceleration induced by passing train decreases rapidly;（3）the field monitoring results verify the feasibility of the dynamic finite element method in research on vibration behavior of railway subgrade in frozen soil region and the method has an important significance in understanding the problem discussed deeply.

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references

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