The road sand-protecting barrier
Technical field
The utility model belongs to the road traffic field, is mainly used in the inhibition of road sand damage, to guarantee traffic safety, is specifically related to a kind of road sand-protecting barrier.
Background technology
The highway in desert and area, Gobi desert and railway, natural conditions are abominable, and wind Da Sha is many, because of the husky resistance of sand damage often suspends traffic.At present, still not having desirable road sand protection facilities prevents and addresses the above problem.Can only be used for checking winds and fixing drifting sand at various Qiao of the big road of sand damage area plantation along the line, filling, grass.Though the buffer zone that Qiao, filling, grass combine can stop wind speed greatly, weaken dust storm, reduces the wind erosion to soil; Root system of buckwheat, shrub and fallen leaves have also played sand fixation.But because drought and water shortage, survival rate is low, and cost is big, and the maintenance cost height is difficult to fundamentally solve the husky resistance problem of sand damage.
Summary of the invention
The purpose of this utility model is intended to utilize aerodynamic principle, by the husky ability of taking of bottom resistance sand and top decay highway beam wind, sand damage and husky resistance is is effectively prevented and treated.
In order to achieve the above object, the utility model adopts following solution: a kind of road sand-protecting barrier, comprise bracing frame, sandboard, verge board, constitute the sand-protecting barrier face by sandboard, constitute the air partition face by verge board, it is characterized in that: verge board is arranged by being bolted on the bracing frame by the some blocks of screens that keep out the wind, sandboard is arranged by being bolted on the bracing frame by the some blocks of husky screens of retaining, keep out the wind screen and the retaining husky screen cross sectional shape be " U " shape and opening outward-dipping, or be butterfly, or V-shaped, or be half garden shape, or be serpentine, or L-shaped, or be sinusoidal waveform, or the combination of above-mentioned shape, have several holes on the verge board, percent opening is 10~60%.
Angle between described sand-protecting barrier face and the air partition face is 90 degree~180 degree.
The aspect ratio of the height of described sand-protecting barrier face and air partition face is 10: 2~10: 8.
Height of the present utility model is generally 2~10 meters, is arranged on the one or both sides of road.
But of the present utility model wind principle is to utilize aerodynamic principle, when taking husky incoming flow wind by sandboard, sandboard effectively stops drift sand, simultaneously incoming flow wind by the wind hole on the verge board after, change a part of incoming flow wind by the wind direction behind the verge board, produce flow-disturbing, reduce the speed of incoming flow wind, lose the kinetic energy of incoming flow wind and take husky ability, avoid the obvious eddy current of incoming flow wind.Husky by the bottom retaining, top presses down the pattern of wind, and the disperse approach and the density area of dust storm are changed, and reaches the purpose of the husky resistance of control road sand damage, guarantees traffic safety.
Compared with prior art, the utlity model has following advantage:
1, because the utility model makes full use of the disperse track of aerodynamic principle and dust storm, on the sandboard of certain altitude, be provided with the verge board of certain altitude, the bottom effectively stops drift sand by sandboard, top makes wind speed and takes the dirt ability drop by the characteristic of verge board change wind.By keeping off sand and the combination that presses down wind, change the disperse track and the areal concentration of wind direction and wind speed and dust storm, thereby reach the purpose of sand prevention, the guarantee expressway safety is driven a vehicle.Simple in structure, economical and practical, the anti-dust storm of the utility model is effective.
2, the utility model need be determined the height of sandboard, verge board and the percent opening of verge board according to regional meteorological condition of living in, sand damage degree and width of roadway, to reach the best husky effect of anti-branch.
Description of drawings:
Fig. 1 is the structural front view of the utility model embodiment.
Fig. 2 is the left view of Fig. 1.
Among the figure: 1, bracing frame 2, verge board 3, hole 4, sandboard
5, the retaining husky screen 6, screen 7, bolt keep out the wind
The specific embodiment:
The specific embodiment of the present utility model is not limited to following embodiment, and different embodiment can be set according to actual needs.
Embodiment: present embodiment comprises bracing frame 1, sandboard 4, verge board 2, constitute the sand-protecting barrier face by sandboard 4, constitute the air partition face by verge board 2, verge board 2 is arranged in parallel and is fixed together by bolt and bracing frame 1 by the some blocks of screens 6 that keep out the wind, sandboard 4 is arranged in parallel and is fixed together by bolt and bracing frame 1 by the some blocks of husky screens 5 of retaining, the cross sectional shape that keeps off the husky screen 5 and the screen 6 that keeps out the wind all be " U " shape and opening outward-dipping, all have several circular ports 3 on the every block of screen 6 that keeps out the wind, percent opening on the verge board 2 is 40%, angle a between sand-protecting barrier face and the air partition face is 120 degree, and the aspect ratio of the height of sand-protecting barrier face and air partition face is 10: 4.
Illustrate: height of the present utility model need be determined according to the width that road is provided with the meteorological condition in sand-protecting barrier zone and road;
The scope of height of the present utility model and required protection is directly proportional; According to different meteorological conditions and height, the percent opening of verge board is 10~60%, and the shape in hole can be circular, rectangle, polygonal and their combined shaped.