Measuring device and measuring method for wind-drift sand of blown sand drifting layer

A measuring device and measuring method technology, which are applied in the field of field wind sand observation or wind tunnel experiment, can solve the problem that there is no wind sand creep layer sediment transport measurement instrument and measurement method, the research results cannot reflect the objective situation, and cannot eliminate the transition layer sand To solve the problem of particle influence, etc., to achieve the effect of rich experimental data, easy control and easy measurement

Active Publication Date: 2012-09-12
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

Failure to eliminate the influence of the sand in the transition layer will cause the research results to fail to reflect the objective situation
Therefore, the accurate measurement of the sediment load in the creeping layer has become the focus of attention in the aeolian academic circles, but there is no special measuring instrument and method for the sediment load in the creeping layer.

Method used

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  • Measuring device and measuring method for wind-drift sand of blown sand drifting layer
  • Measuring device and measuring method for wind-drift sand of blown sand drifting layer
  • Measuring device and measuring method for wind-drift sand of blown sand drifting layer

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Embodiment Construction

[0042] The measuring device 1 described in the present invention can be used to measure the amount of sand transported in a blown-sand creeping layer. The measuring device 1 comprises a cage 2, Figure 4 is a plan view showing the structure of the cage 2 . Such as Figure 4 As shown, the cage 2 has a plurality of insertion holes 201, three insertion holes 201 in this embodiment, of course, the number of insertion holes 201 can be changed in other embodiments. The insertion hole 201 is used to insert the collecting member 3 . In this embodiment, each insertion hole 201 is rectangular, and each insertion hole is arranged side by side and staggered in the longitudinal direction of the cage 2 , and the insertion holes are parallel to each other in the longitudinal direction of the cage 2 .

[0043] Figure 1 to Figure 3 It is a view showing that the collecting member 3 is inserted into each insertion hole 201 of the holder 2 . In this embodiment, three collecting components 3...

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Abstract

The invention relates to a measuring device and a measuring method for wind-drift sand of a blown sand drifting layer. The measuring device (1) provided by the invention is used for measuring the wind-drift sand of the blown sand drifting layer. The measuring device (1) comprises a plurality of collecting parts (3); collecting cavities are formed in all the collecting parts (3); inlets are arranged on all the collecting cavities; the inlets are located on the upper surfaces of the collecting parts (3); and the inlets are same in equivalent lengths and are different in areas. The invention also provides the method for measuring the wind-drift sand of the blown sand drifting layer. According to the method, the wind-drift sand of the blown sand drifting layer is obtained by utilizing a leastsquare fitting equation set.

Description

technical field [0001] The invention relates to a device and a measuring method capable of measuring the amount of sand transported in a blown-sand creeping layer. The measuring device and the measuring method are especially suitable for field blown-sand observation or wind tunnel experiments. Background technique [0002] China is one of the countries with the most severe wind and sand hazards in the world. In order to effectively prevent and control wind-sand disasters, it is necessary to study the basic laws of wind-sand movement. [0003] The movement of sand particles in wind-blown sand flow includes creep, jump and suspension. Among them, creep is the movement form of sand particles rolling or sliding against the sand bed surface, leap is the movement form of sand particles falling to the sand bed surface under the action of gravity after taking off from the sand bed surface, and suspension is the movement form of sand particles A form of movement that hangs in the a...

Claims

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Application Information

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IPC IPC(8): G01M9/06
Inventor 程宏高尚玉邹学勇伍永秋张春来全占军刘辰琛贺佳嘉
Owner BEIJING NORMAL UNIVERSITY
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