CN204125929U - The plastics lattice-valued automata of checking winds and fixing drifting sand - Google Patents
The plastics lattice-valued automata of checking winds and fixing drifting sand Download PDFInfo
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- CN204125929U CN204125929U CN201420530551.4U CN201420530551U CN204125929U CN 204125929 U CN204125929 U CN 204125929U CN 201420530551 U CN201420530551 U CN 201420530551U CN 204125929 U CN204125929 U CN 204125929U
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- sand
- protecting barrier
- lattice
- checking winds
- fixing drifting
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Abstract
The utility model discloses a kind of plastics lattice-valued automata of checking winds and fixing drifting sand, this lattice-valued automata is square, its length of side L, exposes Shamian Island height H, sand-protecting barrier permeability α, is respectively 0.5m≤L≤2m, 0.08m≤H≤0.5m and 1 × 10
-10≤ α≤1 × 10
-8.The utility model design can provide the sand-protecting barrier parameter of better protective action: sand-protecting barrier spacing L, sand-protecting barrier proud exposure H and sand-protecting barrier permeability α; Structure is simple, and easy for installation, effect of checking winds and fixing drifting sand is best.
Description
Technical field
The utility model relates to sand control equipment technical field, especially a kind of plastics lattice-valued automata of checking winds and fixing drifting sand.
Background technology
Sandstorm causes serious harm to the production of people, life, traffic and personal safety, and various sand control engineering technical measures therefore must be taked to be prevented and treated.It is that the current highly effective sand prevention of one hinders husky measure that Shamian Island is laid lattice-valued automata; it mainly by changing terrain surface specifications, increases roughness of ground surface, reduces the wind speed near protection zone; reduce the wind erosion etc. at sand-protecting barrier inside and rear, reach the object of wind prevention and sand resistance.The type of lattice-valued automata is varied, roughly can be divided into wheat straw sand-protecting barrier, clay sand-protecting barrier, gravel sand-protecting barrier and new material sand-protecting barrier etc. by material source.At present, domestic scholars has carried out a large amount of theories and experimental study to checked sand hinder straws preventing principle and effect, for the laying of checked sand hinder straws proposes guidance program.Lattice-valued automata due to new material is anticorrosive and anti-uv-ray is comparatively strong, has mobility and reusing, and easy construction, safeguard simple, show very strong superiority.But the structure of existing plastic sand blocking is reasonable not, is difficult to obtain protection effect well.
Utility model content
The utility model is for the deficiencies in the prior art, and propose a kind of plastics lattice-valued automata of checking winds and fixing drifting sand, structure is simple, easy for installation, all has good protection benefit in a variety of weather conditions.
In order to realize above-mentioned utility model object, the utility model provides following technical scheme: a kind of plastics lattice-valued automata of checking winds and fixing drifting sand, and this lattice-valued automata is square, its length of side L, exposes Shamian Island height H, sand-protecting barrier permeability α, be respectively 0.5m≤L≤2m, 0.08m≤H≤0.5m and 1 × 10
-10≤ α≤1 × 10
-8.
Further, H=0.1m.
Further, L=1.5m.
Further, α=1 × 10
-9.
Further, H=0.1m, L=1.5m, α=1 × 10
-9.
Compared with prior art, the utility model has the following advantages: design can provide the sand-protecting barrier parameter of better protective action: sand-protecting barrier spacing L, sand-protecting barrier proud exposure H and sand-protecting barrier permeability α; Structure is simple, and easy for installation, effect of checking winds and fixing drifting sand is best.
Accompanying drawing explanation
Fig. 1 is the plastics lattice-valued automata structural representation that the utility model is checked winds and fixed drifting sand;
Fig. 2 is the array arrangement schematic diagram of the plastics lattice-valued automata that the utility model is checked winds and fixed drifting sand;
When Fig. 3-1 is sand-protecting barrier mesh spacing L=1.5m, the horizontal velocity distribution vertically on the sand-protecting barrier grid element center vertical line of differing heights;
During Fig. 3-2 sand-protecting barrier mesh spacing L=1.5m, the horizontal velocity distribution vertically after the sand-protecting barrier grid of differing heights on 1m place vertical line;
When Fig. 4-1 is sand-protecting barrier height H=0.1m, the horizontal velocity distribution vertically on the sand-protecting barrier grid element center vertical line of differing heights;
When Fig. 4-2 is sand-protecting barrier height H=0.1m, the horizontal velocity distribution vertically after the sand-protecting barrier grid of differing heights on 1m place vertical line;
When Fig. 5-1 is sand-protecting barrier height H=0.1m, L=1m, the horizontal velocity distribution vertically on the sand-protecting barrier grid element center vertical line of differing heights;
When Fig. 5-2 is sand-protecting barrier height H=0.1m, L=1m, the horizontal velocity distribution vertically after the sand-protecting barrier grid of differing heights on 1m place vertical line.
Detailed description of the invention
Be described in detail the utility model below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.
A kind of plastics lattice-valued automata of checking winds and fixing drifting sand as shown in Figure 1, this lattice-valued automata is square, its length of side L, exposes Shamian Island height H, sand-protecting barrier permeability α, is respectively 0.5m≤L≤2m, 0.08m≤H≤0.5m and 1 × 10
-10≤ α≤1 × 10
-8.Sand-protecting barrier permeability α refers under certain pressure reduction, measures the character that sand-protecting barrier allows air to pass through in quantity.
This sand-protecting barrier is applied to the sediment control structure to the critical facility such as railway and highway.In practical operation, lay the sand control band in fenestral fabric along railway or identitypath, wherein the length of each grid sand-protecting barrier is consistent with wide, and as shown in Figure 1, the surrounding of each sand-protecting barrier grid is fixed by timber, and the array arrangement of generation as shown in Figure 2.
embodiment 1
A plastics lattice-valued automata of checking winds and fixing drifting sand, this lattice-valued automata is square, during its length of side L=1.5m, the horizontal velocity distribution vertically on the sand-protecting barrier grid element center vertical line of differing heights, as shown in figure 3-1; Or its length of side L is when being 1.5m, the horizontal velocity distribution vertically after the sand-protecting barrier grid of differing heights on 1m place vertical line, as shown in figure 3-2.
The impact of sand-protecting barrier height H stream field can be found out: when roughed wind speed u*=0.3m/s, permeability
time, sand-protecting barrier grid is higher, and the impact of its stream field is larger.Because sand-protecting barrier grid height is higher, the inhibition of sand-protecting barrier to the flow field after grid inside and grid is larger, and also more obvious to the backwater effect of wind speed, after making grid element center line and grid 1m vertical line on horizontal velocity generally increase afterwards along with the increase of sand-protecting barrier height H first diminishes.
embodiment 2
A plastics lattice-valued automata of checking winds and fixing drifting sand, this lattice-valued automata is square, and during sand-protecting barrier height H=0.1m, the horizontal velocity distribution vertically on the sand-protecting barrier grid element center vertical line of differing heights, as shown in Fig. 4-1; Or when sand-protecting barrier height H=0.1m, the horizontal velocity distribution vertically after the sand-protecting barrier grid of differing heights on 1m place vertical line, as shown in the Fig. 4-2.
The impact of sand-protecting barrier mesh spacing L stream field can be found out: when roughed wind speed u*=0.3m/s, permeability
time, along with the increase of sand-protecting barrier mesh spacing L, the impact of its stream field is also larger.Horizontal velocity in sand-protecting barrier grid on the vertical line of center is negative value, for sand-protecting barrier height H
during 0.2m, the absolute value of the horizontal velocity in sand-protecting barrier grid on the vertical line of center increases gradually along with the increase of sand-protecting barrier mesh spacing L, and during for sand-protecting barrier height H=0.1m, and the absolute value of the horizontal velocity in grid on center line reduces along with the increase of L.
embodiment 3
A plastics lattice-valued automata of checking winds and fixing drifting sand, this lattice-valued automata is square, during sand-protecting barrier height H=0.1m, L=1m, the horizontal velocity distribution vertically on the sand-protecting barrier grid element center vertical line of differing heights, as shown in fig. 5-1; Or when sand-protecting barrier height H=0.1m, L=1m, the horizontal velocity distribution vertically after the sand-protecting barrier grid of differing heights on 1m place vertical line, as shown in Fig. 5-2.
The impact of permeability α stream field and protection distance can be found out, horizontal velocity on the vertical line of sand-protecting barrier grid center line and the rear 1m of net increases gradually along elevation on the whole and finally tends towards stability, and under sustained height h, horizontal velocity increases along with the increase of permeability, reach after stablizing, the increase of permeability is little on the impact of horizontal velocity, and stable after horizontal velocity and incoming flow wind speed almost equal.Work as permeability
time, the velocity magnitude in sand-protecting barrier grid reduces gradually along elevation, and velocity magnitude and incoming flow wind speed differ greatly; Work as permeability
time, the horizontal velocity in sand-protecting barrier grid increases gradually along elevation, and sand-protecting barrier is very little on the impact of wind field.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a plastics lattice-valued automata of checking winds and fixing drifting sand, is characterized in that: this lattice-valued automata is square, its length of side L, exposes Shamian Island height H, sand-protecting barrier permeability α, is respectively 0.5m≤L≤2m, 0.08m≤H≤0.5m and 1 × 10
-10≤ α≤1 × 10
-8.
2. the plastics lattice-valued automata of checking winds and fixing drifting sand as claimed in claim 1, is characterized in that: H=0.1m.
3. the plastics lattice-valued automata of checking winds and fixing drifting sand as claimed in claim 1, is characterized in that: L=1.5m.
4. the plastics lattice-valued automata of checking winds and fixing drifting sand as claimed in claim 1, is characterized in that: α=1 × 10
-9.
5. the plastics lattice-valued automata of checking winds and fixing drifting sand as claimed in claim 1, is characterized in that: H=0.1m, L=1.5m, α=1 × 10
-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530551.4U CN204125929U (en) | 2014-09-16 | 2014-09-16 | The plastics lattice-valued automata of checking winds and fixing drifting sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530551.4U CN204125929U (en) | 2014-09-16 | 2014-09-16 | The plastics lattice-valued automata of checking winds and fixing drifting sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204125929U true CN204125929U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530551.4U Expired - Fee Related CN204125929U (en) | 2014-09-16 | 2014-09-16 | The plastics lattice-valued automata of checking winds and fixing drifting sand |
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|---|---|
| CN (1) | CN204125929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213550A (en) * | 2014-09-16 | 2014-12-17 | 兰州大学 | Plastic grid-shaped sand barrier for wind prevention and sand fixation |
-
2014
- 2014-09-16 CN CN201420530551.4U patent/CN204125929U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213550A (en) * | 2014-09-16 | 2014-12-17 | 兰州大学 | Plastic grid-shaped sand barrier for wind prevention and sand fixation |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20160916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |