加筋土式挡风墙优化研究

刘凤华

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铁道工程学报 ›› 2006, Vol. 23 ›› Issue (1) : 96-99.

路网研究

加筋土式挡风墙优化研究

刘凤华

作者信息 +

STUDY ON THE OPTIMIZATION OF WIND-BREAK WALL OF THE REINFORCED CONCRETE SHAPED TYPE

LIU Feng-hua

Author information +

文章历史 +

摘要

研究目的：使车辆受到的气动力减小及挡风墙建设施工具有良好的经济性。

研究方法：采用二维粘性不可压缩雷诺平均应力方程，在横风风速为35.1 m/s时，路堤高度、挡风墙高度、设置位置不同条件下，对加筋土式挡风墙背风侧车辆的气动力进行数值模拟计算。

研究结果：确定了挡风墙最佳高度和最佳设置位置随路堤高度的变化规律。

研究结论：随着路堤高度的增大，挡风墙最佳高度不断的减小，但减小的幅度越来越小，而挡风墙的最佳设置位置变化幅度较小，基本在3.4-3.5之间。

Abstract

Research purposes: In order to make the aerodynamic force of trains smaller and the construction of wind-break wall with good economics.

Research method: The numerical simulation calculation is carried out to the aerodynamic force of the train under wind-break wall with two dimension incompressible viscous N-S equations, when the cross-wind speed is 35.1m/s, the height and position of wind-break wall and the height of embankment are different.

Research results: the best height and position of wind-break varying with the height of embankment is established.

Research conclusion: The best height of wind-break wall is decreasing with the increase of height of embankment, and the extent is smaller. While the best position of wind-break wall has a little change from 3.4 meter to 3.5 meter basically.

导出引用

刘凤华. 加筋土式挡风墙优化研究[J]. 铁道工程学报, 2006, 23(1): 96-99

LIU Feng-hua. STUDY ON THE OPTIMIZATION OF WIND-BREAK WALL OF THE REINFORCED CONCRETE SHAPED TYPE[J]. Journal of Railway Engineering Society, 2006, 23(1): 96-99

中图分类号： U216.41+3

参考文献

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