| 国家重点基础研究发展规划 |
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| Experimental Research on Threshold Wind Velocity for Creeping Sand |
| WU Jian-jun, SUN Huan-qing, LI Jian-ye, LUO Sheng-hu |
| Key Laboratory of Ministry of Education for Mechanics on Western Disaster and Environment; School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China |
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Abstract A sand trap for collecting creeping sand was designed to avoid collapse of sand on the leading edge of sand tank. Then wind tunnel experiments were conducted to analyze the impacts of height and thickness of the trap on the creep-sediment-transport rate, and the effective height and thickness of the sand trap was given out. By means of this kind of sand trap, the creep-sediment-transport rate was measured at different wind velocities. Finally the threshold wind velocity was extrapolated.
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Received: 12 December 2010
Published: 20 May 2011
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2011, Vol. 31 
