Fig 1.
Schematic sketch of the protection system of Wuma Expressway.
Fig 2.
Schematic diagram of calculation domain of sand barrier fence with different heights.
Fig 3.
Grid division diagram.
Fig 4.
Grid independence verification.
Fig 5.
Comparison of wind speed at different heights in numerical simulation and wind tunnel test.
Fig 6.
Flow field structure and local enlargement of eddy current zone under different sand barrier heights.
Fig 7.
Horizontal wind speed changes of sand-blocking measures at different heights.
Fig 8.
Windproof efficiency of sand barrier at different heights.
Fig 9.
The sand cloud around the sand barrier at different heights.
Table 1.
The change range of wind speed and the proportion of initial wind speed at each position of sand barrier before and after improvement.
Table 2.
The average windproof efficiency of each position of sand barrier before and after improvement.
Table 3.
The thickness of sand accumulation in the sand barrier fence is 0.55 ~ 0.6 thickness of sand accumulation in the color belt.
Fig 10.
Model calculation diagram.
Fig 11.
Sand accumulation nephogram of embankment before and after improvement of sand barrier fence.