Wind Tunnel Simulation Experiments on Configuration of Railway Green Belts in Intensely Blown Sand Areas of Hetian-Ruoqiang Railway

Ding Xuening

doi:10.13961/j.cnki.stbctb.2024.04.027

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Wind Tunnel Simulation Experiments on Configuration of Railway Green Belts in Intensely Blown Sand Areas of Hetian-Ruoqiang Railway

- Wind Tunnel Simulation Experiments on Configuration of Railway Green Belts in Intensely Blown Sand Areas of Hetian-Ruoqiang Railway
- Bulletin of Soiland Water Conservation Vol. 44, Issue 4, Pages: 257-264(2024)
- 作者机构：
  
  新疆铁道勘察设计院院有限公司,新疆,乌鲁木齐,830011
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2024.04.027
  CLC： X169
- Published：2024
- 稿件说明：
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Ding Xuening. Wind Tunnel Simulation Experiments on Configuration of Railway Green Belts in Intensely Blown Sand Areas of Hetian-Ruoqiang Railway[J]. Bulletin of Soiland Water Conservation, 2024, 44(4): 257-264.
DOI：

Ding Xuening. Wind Tunnel Simulation Experiments on Configuration of Railway Green Belts in Intensely Blown Sand Areas of Hetian-Ruoqiang Railway[J]. Bulletin of Soiland Water Conservation, 2024, 44(4): 257-264. DOI： 10.13961/j.cnki.stbctb.2024.04.027.

摘要

[目的] 探究和田—若羌铁路大风沙区铁路科学的防沙林带宽度、间距及体系配置模式，为沙区铁路防护林带配置和建设提供理论依据。[方法] 以梭梭和沙拐枣为林木模型，开展防沙林带配置的风洞试验研究。[结果] 防护林带宽度为5行，防护林带间距为6 H(H为植物模型高度)时，第2条林带气流减弱效果明显，第3条阻沙林带之后区域，气流衰减显著，且不会随着风速的增大而增加，具有较好的防护效益，3条林带达到较好的防护作用。风速越大，林带背风侧防护区的范围越短。[结论] 为保证体系在较大风速作用下有较好的防护作用，林带体系应选择5条防护林配置体系模式。

Abstract

[Objective] The width

spacing

and system configuration mode of scientifically designed sand-control forest belts along the Hetian-Ruoqiang railway in areas prone to strong winds and sandstorms were analysed

in order to provide theoretical foundations for the configuration and construction of protective forest belts along the railway in sandy regions. [Methods] The configuration of a sand protection forest belt was studied using wind tunnel experiments and Haloxylon ammodendron and Calligonum mongolicum as forest tree models. [Results] When the protective forest belt spanned five rows and the gap between each belt was six times the height

a noticeable decrease in airflow was observed behind the second belt

with substantial attenuation continuing into the region behind the third sand-control forest belt. Notably

this attenuation remained consistent regardless of wind speed

highlighting its effective protective nature. Utilisation of these three forest belts resulted in enhanced protection. The protective area on the leeward side of the forest belt decreased as the wind speed increased. [Conclusion] The forest belt system employed the configuration modes of five protective forests to enhance the protective effect of the system against high wind speeds.

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references

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