CN201125379Y - Fense type cotton stalk sand barrier - Google Patents
Fense type cotton stalk sand barrier Download PDFInfo
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- CN201125379Y CN201125379Y CNU2007203112678U CN200720311267U CN201125379Y CN 201125379 Y CN201125379 Y CN 201125379Y CN U2007203112678 U CNU2007203112678 U CN U2007203112678U CN 200720311267 U CN200720311267 U CN 200720311267U CN 201125379 Y CN201125379 Y CN 201125379Y
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Abstract
The utility model relates to a barrier type cotton stalks sand screen, which is woven by transverse lines and vertical lines cotton stalks, each cotton stalk in transverse line and in vertical line decussates vertically and in the same plane. The sand screen woven by transverse lines and vertical lines cotton stalks makes the vertical line cotton stalks as frame, the width of the sand screen is 0.15-0.35m, the length is 0.5-1.0m; the number of the parallel cotton stalks in transverse line is 12-70, the distance among each stalk is 3-6cm, the number of the parallel cotton stalks in vertical is 5-10, the distance among each stalk is 0.10-0.15m, the porosity of the sand screen is 30-40%. The transverse line and the vertical line cotton stalks can be woven by changing positions, namely, weaving another sand screen making the transverse line cotton stalks as frame. The utility model has merits of widely material, low cost, simple weave and multiple combination type; has movable capability in operation process, the simple setting, time saving and work saving; has stable structure when fixed in the sand, has strong ability of anti-wind erosion and long service life.
Description
Technical field
The present utility model relate to a kind of can be windproof or fixingly flow, the bar of semi-mobile dune, particularly adopt the stalk lace of crops cotton to become the mechanical sand barrier of fence shape.
Background technology
At China's arid biogeographic zone, natural conditions are abominable, drought and water shortage, corrode serious area at stream, sand-protecting barrier is major measure and even unique measure of tackling quicksand, even at semiarid region, want on moving dunes, to afforest, sand-protecting barrier also must be set earlier fix, otherwise plant is difficult to survive by sapping to guarantee Shamian Island.According to the difference of material therefor, sand-protecting barrier can be divided into living sand barrier (plant sand block), chemical sand-protecting barrier and mechanical sand barrier.Mechanical sand barrier is to utilize materials such as wheat straw, clay, branch, cobble, is arranged to multi-form obstruction on Shamian Island, thereby the direction of motion, speed, the structure of control stream play the effect of mechanical stop dust storm, tackling quicksand.According to the difference of mechanical sand barrier material therefor, mechanical sand barrier can be divided into polytypes such as faggot sand-protecting barrier, clay sand-protecting barrier, gravel sand-protecting barrier.Place threatened by wind and sand in China, relatively Chang Yong mechanical sand barrier is wheat straw sand-protecting barrier and clay sand-protecting barrier.The faggot sand-protecting barrier is a material with the gentle matter stalk of plant, is set directly at Shamian Island, and the sand-protecting barrier height is fixed, and by increasing roughness of ground surface, reduces the speed of near surface formation air-flow, thereby reduces the husky ability of taking of stream, stops that drift sand moves, and alleviates hazards of sand storms.After sand-protecting barrier was provided with, the grass that exposes barrier was rotten gradually through the weathering that drenches with rain, and general application life is shorter, just lost function (wheat straw) in 3～5 years.The clay sand-protecting barrier is a kind of type that fixes the sand sand-protecting barrier of stuffy structure, and the sand-protecting barrier height is fixed, and is suitable for the abundant area of clay, and it is little to the interception function of the drift sand that passes by, but the better performances of fixed dune.After the clay sand-protecting barrier is provided with, between barrier, form the spill depression, the accumulation between barrier gradually of the clay of barrier face, and under the rainwater effect of gathering between barrier, form one deck skinning, because the skinning consolidation has reduced the following of moisture and oozed, therefore be unfavorable for plant growing.The gravel sand-protecting barrier can only be used in its abundant special area, and setting is restricted.Along with the material development of science and technology, currently new material sand-protecting barriers such as plastic grid, nylon grid also occurred, but the material of this class sand-protecting barrier includes the number of chemical composition, and environment is had certain pollution, and it is higher that cost is set.The new material that can make sand-protecting barrier is all being sought in countries in the world for this reason.China arid biogeographic zone establishing in large scale cotton has produced a large amount of cotton stalks, is that material is compiled into mechanical sand barrier with it, forms the effect of existing traditional mechanical sand barrier, can utilize the environment-friendly type sand-protecting barrier of a large amount of cotton stalks of arid biogeographic zone again.The cotton stalk sand-protecting barrier of fence shape is a material with the crops surplus products, and material source is abundant, and the environment pollution amount is little, can utilize machinery to work out, and process is simple, is easy to promote.
Summary of the invention
Shorter application life in order to solve current wheat straw sand-protecting barrier, material sand-protecting barrier materials shortage such as clay and stone, nylon (plastics) sand-protecting barrier is provided with the cost high defective of possibility contaminated environment again, and the present utility model provides a kind of paling form cotton stalk sand-protecting barrier.The cotton stalk material that this sand-protecting barrier adopts the field heap to abandon uses different establishment gimmicks, becomes the paling form structure according to certain specification lace, is arranged on the farmland, the desert edge area that are subjected to hazards of sand storms serious, or mobile, semifixed zone, sand dune.This sand-protecting barrier not only has the good effect of checking winds and fixing drifting sand, but also the use that can combine with other the measure of checking winds and fixing drifting sand, application life is longer, and is with low cost, and environmental protection is easily gone.
For achieving the above object, technical solutions of the utility model are:
The cotton stalk sand-protecting barrier of a kind of paling form is to be formed by horizontally-arranged cotton stalk and vertical setting of types cotton stalk lace, and horizontally-arranged every cotton stalk arranged side by side is vertical cross-shaped with vertical setting of types every cotton stalk arranged side by side, and on same horizontal plane, the vertical setting of types cotton stalk is a skeleton.Wide by the sand-protecting barrier of horizontally-arranged cotton stalk and the establishment of vertical setting of types cotton stalk is 0.15～0.35m, and length is 0.5～1.0m; Horizontally-arranged cotton stalk cotton stalk number arranged side by side is 12～70, and every cotton stalk spacing is 3～6mm, and vertical setting of types cotton stalk cotton stalk number arranged side by side is 5～10, and the spacing of every cotton stalk is 0.10～0.15m, and the sand-protecting barrier degree of porosity is 30～40%.
Above-mentioned cotton stalk sand-protecting barrier can the horizontally-arranged cotton stalk be a skeleton again, vertical setting of types cotton stalk and the establishment of horizontally-arranged cotton stalk.The sand-protecting barrier of establishment is wide to be 0.35～0.50m, and long is 0.5m～1.0m; Vertical setting of types cotton stalk cotton stalk number arranged side by side is 29～120, and every cotton stalk spacing is 3～5mm; Horizontally-arranged cotton stalk cotton stalk number arranged side by side is 3～18, and the spacing of every cotton stalk is 0.10～0.15m.
The above-mentioned cotton stalk sand-protecting barrier that is compiled into by horizontally-arranged cotton stalk and vertical setting of types cotton stalk can be combined into 1m * 1m, or 1m * 2m, or the trellis of 2m * 2m or rhombus or leg-of-mutton sand-protecting barrier, and the barrier height is 0.15～0.50m,
For above-mentioned horizontally-arranged or vertical setting of types cotton stalk sand-protecting barrier, cotton stalk quantity, the different sand-protecting barriers that form different size, different voidages of density during because of braiding.When the cotton stalk density of horizontally-arranged is bigger, the cotton stalk of vertical setting of types only plays the supplemental support effect, then forms the horizontally-arranged sand-protecting barrier; Less when the cotton stalk density of horizontally-arranged, the cotton stalk density of vertical setting of types is bigger, and the cotton stalk of horizontally-arranged plays the supplemental support effect, then forms the vertical setting of types sand-protecting barrier.Every vertical cotton culm base of sand-protecting barrier is reserved the long distance of 10cm, the sand-protecting barrier of finishing directly can be inserted on the softer Shamian Island like this, does not need other supporter.The sand-protecting barrier edge can twine binding with every cotton stalk with things such as thin wires, make the shape and structure of whole sand-protecting barrier stable, run into stream not yielding, fall apart.In the process of establishment sand-protecting barrier, work out the difference of cotton stalk quantity, determined the size of the voidage of whole sand-protecting barrier.If the horizontally-arranged establishment is 22cm with horizontally-arranged sand-protecting barrier width, each horizontally-arranged is long to be calculated for 1m closes 2～3 cotton stalks: establishment 16～18 rows, and voidage is 40%; Compile 19～22 rows, voidage is 35%; Compile 23～25 rows, voidage is 30%.
In order to verify the ability of checking winds and fixing drifting sand of the utility model sand-protecting barrier, this experiment is at the open-air wind tunnel laboratory in Chinese Academy of Sciences cold area arid region environment and Engineering research institute desert and desertification key lab Shapotou, above multi-form cotton stalk sand-protecting barrier is carried out wind tunnel test, and experimental result is as follows:
To grow and be 1m, wide is 0.22m, and voidage is the grid-like structure that 30%, 35% and 40% horizontally-arranged sand-protecting barrier all is arranged to 1m * 1m, measures the barrier back 1m 0～20cm of place sedimentary loading highly respectively under the saturated stream condition of per second 7m and per second 10m.
(1) voidage is 30% horizontally-arranged sand-protecting barrier, under the saturated stream condition of 7m/s, and deflation 20 minutes, measuring barrier back silt discharge is 0.Under the saturated stream condition of 10m/s, deflation 15 minutes, the silt discharge of measuring after hindering is 0.005g/s.
(2) voidage is 35% horizontally-arranged sand-protecting barrier, under the saturated stream condition of 7m/s, and deflation 20 minutes, measuring barrier back silt discharge is 0.Under the saturated stream condition of 10m/s, deflation 15 minutes, the silt discharge of measuring after hindering is 0.014g/s.
(3) voidage is 40% horizontally-arranged sand-protecting barrier, under the saturated stream condition of 7m/s, and deflation 26 minutes, measuring barrier back silt discharge is 0.001g/s.Under the saturated stream condition of 10m/s, deflation 15 minutes, the silt discharge of measuring after hindering is 0.009g/s.
To grow and be 1m, wide is 0.50m, and the vertical setting of types sand-protecting barrier that vertical setting of types is arranged 120 cotton stalks side by side is arranged to the grid-like structure of 1m * 1m, is determined under the saturated stream condition of 7m/s deflation 20 minutes, silt discharge 0; Under the 10m/s condition, deflation 15 minutes, silt discharge is 0.027g/s.
Under same set-up mode, above type sand-protecting barrier is carried out the destructive testing of per second 20m high wind.Test shows: except that the vertical setting of types sand-protecting barrier intersects the vertical angle places have slightly tiltedly at two sand-protecting barriers, all the other sand-protecting barriers are excellent.This is that ventilative ability decreases because the degree of porosity of vertical setting of types sand-protecting barrier is too little, the cause that makes the easy lodging of sand-protecting barrier.
More than test explanation: the dissimilar sand-protecting barriers by the cotton stalk lace have the good effect of checking winds and fixing drifting sand, and structure is firm, and wind erosion-resistance performance is good.
The utility model mechanical sand barrier principle of checking winds and fixing drifting sand:
According to the characteristics of motion of stream, the sand in the stream has 80～90%, in the air-flow of near surface 0.10～0.30m, and concentrates on mostly in the height of face of land 0.10m and passes through.Therefore, 0.10～0.40m or higher obstruction are set on the route that stream passes through, just can effectively reduce wind speed, reduce sedimentary loading, the moving of control drift sand, make pile up in its distance certain behind obstruction under, reduce the harm of stream.When stream when dredging saturating type sand-protecting barrier, some air-flow collide before barrier and is obstructed and circles round, make barrier before wind speed sharply reduce, stream take husky ability reduction, the grains of sand sink before barrier; Another part air-flow then passes from the sand-protecting barrier space, in the process of passing since be subjected to the sand-protecting barrier material friction, stop and cut apart, the energy of air-flow obviously is consumed, wind speed weakens, thereby makes the part grains of sand that sedimentation take place behind barrier.Therefore this utility model is dredged speed, transmission direction and the sedimentary loading that saturating shape sand-protecting barrier can effectively be controlled stream, so just can be windproof, the control grains of sand are mobile, and move on the sand dune, tackling quicksand, minimizing hazards of sand storms.
The beneficial effect of advantage of the present utility model and generation is:
1, have the good effect of checking winds and fixing drifting sand, structure is firm, and is indeformable, and cracky can not combine with plant measures, plants psammophytes between barrier, makes sand dune fixation.
2, extensive with material, simple in structure, lace is easy, and is with low cost, can adopt the machinery braiding, solved the problem of rural area cotton stalk bulk deposition, turns waste into wealth.
3, can work out different voidages, the sand-protecting barrier of different size according to needs on the spot; Set-up mode is versatile and flexible, and it is time saving and energy saving that sand-protecting barrier is set, and also can mutually combine with dissimilar sand-protecting barriers simultaneously and use the sand-protecting barrier band of being arranged in flakes.
4, application life longer, general about 10 years.If the cotton stalk rots, can be sand ground getting fat water conservation, can not cause environment pollution, have the ecological, environmental protective effect.
Description of drawings
Fig. 1 is the structural plan figure of the utility model horizontally-arranged cotton stalk sand-protecting barrier.
Fig. 2 is the structural plan figure of the utility model vertical setting of types cotton stalk sand-protecting barrier.
Fig. 3 is the utility model sand-protecting barrier is arranged to the grid-like sand-protecting barrier of 1m * 1m on the surface, sand dune a stereogram.
The specific embodiment
Below in conjunction with the drawings and Examples card the utility model is described further again.
As shown in Figure 1, earlier cotton stalk is collected, remove branch, stay major branch, pick out strong, as to have toughness branch, the cotton stalk sand-protecting barrier of lace paling form.The cotton stalk sand-protecting barrier of paling form is to be formed by horizontally-arranged cotton stalk 1 and vertical setting of types cotton stalk 2 laces.Horizontally-arranged every cotton stalk arranged side by side is vertical cross-shaped with vertical setting of types every cotton stalk arranged side by side, and on same horizontal plane, is skeleton with vertical setting of types cotton stalk 2, and the cotton stalk sand-protecting barrier is long to be 1.0m, and wide is 0.22m; Horizontally-arranged cotton stalk 15 rows arranged side by side, every row closes 2, and total cotton stalk number is 30; Vertical setting of types cotton stalk number arranged side by side is 9, and the spacing of every cotton stalk of vertical setting of types is 0.10m, so just can work out out degree of porosity and be 40% paling form horizontally-arranged sand-protecting barrier.Every vertical stalk base portion is reserved the long distance of 10cm, then it vertically is inserted in the sand bed.Through test determination: under the saturated stream condition at 7m/s, deflation 20 minutes, measuring barrier back silt discharge is 0.001g/s; Under the saturated stream condition of 10m/s, the silt discharge 0.009g/s after hindering is measured in deflation 15 minutes.
As shown in Figure 2, horizontally-arranged cotton stalk 1 and the mutual conversion in vertical setting of types cotton stalk 2 positions of embodiment 1 are worked out.Horizontally-arranged cotton stalk 1 is a skeleton.Sand-protecting barrier length by vertical setting of types cotton stalk 2 and 1 establishment of horizontally-arranged cotton stalk is 1.0m, and wide is 0.5m; Horizontally-arranged cotton stalk number arranged side by side is 18, and vertical setting of types cotton stalk number arranged side by side is 120, so just works out what a vertical setting of types sand-protecting barrier.Through test determination: under the saturated stream condition at 7m/s, deflation 20 minutes, silt discharge 0; Under the 10m/s condition, deflation 15 minutes, silt discharge is 0.027g/s.When reality establishment vertical setting of types sand-protecting barrier, vertical setting of types cotton stalk quantity is at 80～100, and promptly voidage is better in 30～40% effects.
Embodiment 3
Can be set to trellis by the cotton stalk sand-protecting barrier of paling form.According to the standard setting of Fig. 3, sand-protecting barrier is combined into the trellis sand-protecting barrier of 1m * 1m, barrier height be 0.20m, sound of laughing continuous, the large tracts of land setting is come, formation sand-protecting barrier band in flakes.Generally be that the grid-like effect of 1m * 1m is best, grid is big more, and wind erosion will be serious more.
Embodiment 4
Can be set to the cotton stalk sand-protecting barrier of colony's paling form band by the cotton stalk sand-protecting barrier of paling form, arrange for single housing in row, the barrier height is 0.15～0.50m, and general sand-protecting barrier line space is 7 to 10 times of sand-protecting barrier height, and can be by the multistage setting of cotton stalk sand-protecting barrier of different voidages.Area, sand-protecting barrier forward position is with the bigger sand-protecting barrier of voidage, as the sand-protecting barrier of voidage 45% is set, set gradually the sand-protecting barrier that 40%, 35%, 30% voidage does not wait then, the grains of sand are after the obstruction through different voidage sand-protecting barriers layer by layer, finally can deposit in the less sand-protecting barrier of voidage, so just can control the entrained grains of sand of stream fully, tackling quicksand reduces hazards of sand storms.
Claims (3)
1, the cotton stalk sand-protecting barrier of a kind of paling form, be to form by horizontally-arranged cotton stalk (1) and vertical setting of types cotton stalk (2) lace, horizontally-arranged every cotton stalk arranged side by side is vertical cross-shaped with vertical setting of types every cotton stalk arranged side by side, and on same horizontal plane, vertical setting of types cotton stalk (2) is a skeleton, it is characterized in that: by the wide 0.15～0.35m of being of sand-protecting barrier of horizontally-arranged cotton stalk (1) and vertical setting of types cotton stalk (2) establishment, length is 0.5～1.0m; Horizontally-arranged cotton stalk (1) cotton stalk number arranged side by side is 12～70, and every cotton stalk spacing is 3～6mm, and vertical setting of types cotton stalk (2) cotton stalk number arranged side by side is 5～10, and the spacing of every cotton stalk is 0.10～0.15m, and the sand-protecting barrier degree of porosity is 30～40%.
2, the cotton stalk sand-protecting barrier of a kind of paling form according to claim 1, it is characterized in that: horizontally-arranged cotton stalk (1) is a skeleton, the sand-protecting barrier of vertical setting of types cotton stalk (2) and horizontally-arranged cotton stalk (1) establishment is wide to be 0.35～0.50m,, long is 0.5m～1.0m; Vertical setting of types cotton stalk (2) cotton stalk number arranged side by side is 29～120, and every cotton stalk spacing is 3～5mm; Horizontally-arranged cotton stalk (1) cotton stalk number arranged side by side is 3～18, and the spacing of every cotton stalk is 0.10～0.15m.
3, the cotton stalk sand-protecting barrier of a kind of paling form according to claim 1 and 2, it is characterized in that: the sand-protecting barrier that is compiled into by horizontally-arranged cotton stalk (1) and vertical setting of types cotton stalk (2) is combined into 1m * 1m, or 1m * 2m, or the trellis of 2m * 2m or rhombus or leg-of-mutton sand-protecting barrier, the barrier height is 0.15～0.50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203112678U CN201125379Y (en) | 2007-11-23 | 2007-11-23 | Fense type cotton stalk sand barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203112678U CN201125379Y (en) | 2007-11-23 | 2007-11-23 | Fense type cotton stalk sand barrier |
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| Publication Number | Publication Date |
|---|---|
| CN201125379Y true CN201125379Y (en) | 2008-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203112678U Expired - Fee Related CN201125379Y (en) | 2007-11-23 | 2007-11-23 | Fense type cotton stalk sand barrier |
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| Country | Link |
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| CN (1) | CN201125379Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047239A (en) * | 2014-07-01 | 2014-09-17 | 甘肃省治沙研究所 | Movable sand deposition sand barrier and application method thereof |
| CN105735158A (en) * | 2016-03-15 | 2016-07-06 | 甘肃省治沙研究所 | Light and convenient combined type sand-protecting barrier used for fixing shifting sand |
-
2007
- 2007-11-23 CN CNU2007203112678U patent/CN201125379Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047239A (en) * | 2014-07-01 | 2014-09-17 | 甘肃省治沙研究所 | Movable sand deposition sand barrier and application method thereof |
| CN104047239B (en) * | 2014-07-01 | 2017-03-22 | 甘肃省治沙研究所 | Movable sand deposition sand barrier and application method thereof |
| CN105735158A (en) * | 2016-03-15 | 2016-07-06 | 甘肃省治沙研究所 | Light and convenient combined type sand-protecting barrier used for fixing shifting sand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20111123 |