Study on the Wind-Sand Flow Movement Characteristics and the Shielding Effect of the Wind-Break Wall along the Railway in Gobi Area

Jian Jun Cheng

doi:10.4028/www.scientific.net/AMM.178-181.1653

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Study on the Wind-Sand Flow Movement...

Study on the Wind-Sand Flow Movement Characteristics and the Shielding Effect of the Wind-Break Wall along the Railway in Gobi Area

Abstract:

Based on the large number of field surveys and long-term monitoring data of Hongceng, Hongliu and MengliuDong monitoring points, the wind-sand flow movement characteristics along the railway in Gobi area was analyzed. The shielding effect of the wind-break wall was evaluated by the methods of numerical simulation and field test. Conclusions drawn as followings: the wind-sand flow movement in Gobi area is characterized by stable of direction, seasonal, high-velocity,long-term,and shorting of starting-up time and moresand content. Numerical simulation shows that the wind flow form a large vortex region on the leeward side of wall, the flow field elements occurs significant changes. Both field test data and numerical simulations indicated that 3.0m height of wind-break wall meet the requirement of shielding wind-sand flow.

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Periodical:

Applied Mechanics and Materials (Volumes 178-181)

Pages:

1653-1657

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.178-181.1653

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Online since:

May 2012

Authors:

Jian Jun Cheng

Keywords:

Hazard of Drifting Sand, Railway in Gobi, Shielding Effect of Wind-Break Wall

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References

[1] Cheng Jianjun. Study on the Hazard Characteristics of the Drifting Sand along the Railway in Gobi Area and the Efficacy of the Control Engineering Measures [J].China Railway Science. 2009(5):15-20.

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[2] Wang Houhong. Study on the height of wind break wall [J]. China Railway Science.1990,11(1): 14-22.

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