Sand barrier for preventing and controlling sand and application
By using block sand barrier units made of materials such as wind-created sand, grid sand barriers are formed and sand plants are planted in the unit, the problems of existing sand barriers are solved, and effective protection of desertification and long-lived sand barriers are achieved.
Patent Information
- Application Number
- CN202510241615.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-06-06
AI Technical Summary
The existing grass lattice sand barriers are prone to rot and damage in extremely harsh environments, and are time-consuming and labor-intensive, costly, and it is difficult to effectively prevent the damage to plants by sandstorms and wind.
Block sand barrier units made of wind-created sand, bitter salt water, fly ash, and cement are used to form grid sand barriers through lattice splicing. Holes are opened on the top and inside of each block sand barrier unit to fill soil organic matter and plant sand-grown plants.
It has achieved effective protection against desertification, extended the service life of sand barriers, been reused, reduced the cost of sand control, and effectively prevented the damage to plants by sandstorms and wind.
Smart Images
Figure CN120099938A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of desertification prevention and control, and in particular to a sand barrier for preventing and controlling sand and its application. Background Art
[0002] Desertification refers to the formation of desert-like areas due to land degradation, ecosystem damage, vegetation loss, severe soil erosion and other factors caused by climate change, unreasonable land use and overgrazing. Sand barriers are an important measure to prevent and fix sand. They can increase the surface roughness, reduce the surface wind speed, change the physical characteristics of wind and sand flow, and are also an important basic preliminary measure for plant sand control. They have the function of turning mobile and semi-mobile sand dunes into fixed sand dunes.
[0003] At present, the methods of establishing sand barriers are divided into mechanical sand barriers and biological sand barriers. Among mechanical sand barriers, grass grid sand barriers are a common means of preventing wind and fixing sand. They are used to reduce wind speed and fix quicksand. They are made by pressing plant stems such as rice straw, wheat straw and Achnatherum splendens into the sand surface in the desert. When making grass grids, first lay the plant stems on the positioning line marked in advance, and then use a shovel to press the middle part of the plant stems into the sand about 10 to 20 cm, and the two ends of the plant stems will naturally stand up to form a semi-hidden sand barrier. The construction method of grass grid sand barriers has not been improved. Experienced workers are still required to use shovels to pierce wheat straw into the sand to form a semi-hidden grass grid. This process is time-consuming and labor-intensive, and it increases costs invisibly. In particular, grass grid sand barriers such as reeds and straw are easy to rot and damage in extremely harsh environments, have a low lifespan, and replanting is time-consuming and labor-intensive. Therefore, it is necessary to find new technical measures and find a material and method for making sand barriers.
[0004] Fly ash is the main solid waste discharged from coal-fired power plants. With the development of the power industry, the amount of fly ash discharged from coal-fired power plants has increased year by year, becoming one of the largest industrial waste residues in my country. If a large amount of fly ash is not treated, it will produce dust and pollute the atmosphere; if it is discharged into the water system, it will cause river siltation, and the toxic chemicals in it will also cause harm to humans and organisms. However, fly ash can be used as a resource, as an admixture for concrete, and can also improve the soil environment. If fly ash is used in windbreak and sand fixation, it will become an effective method for comprehensive utilization of solid waste. Summary of the invention
[0005] Aiming at the problem that grass grids are seriously damaged by wind and sand in sandy areas and the comprehensive utilization of fly ash, the present invention proposes a block sand barrier for desertification control and its application.
[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:
[0007] On the one hand, the present invention discloses a sand barrier for preventing and controlling sand, wherein the sand barrier is a grid formed by splicing a plurality of lattices; the lattices are formed by splicing a plurality of building block sand barrier units; a first building block hole is opened on the top of each building block sand barrier unit, the first building block hole is filled with soil organic matter and planted with sand plants; a second building block hole is opened inside each building block sand barrier unit, and each building block sand barrier unit is spliced and fixed through the second building block hole.
[0008] Furthermore, the block sand barrier unit is prepared from aeolian sand, brackish water, fly ash and cement in a mass ratio of 0.75:0.15:0.03:0.07.
[0009] Furthermore, the preparation method of the building block sand barrier unit is as follows:
[0010] S1. Pour aeolian sand, fly ash and cement into a mixer, dry mix for 5 minutes, then add brackish water and stir slowly for 3 minutes, then stir quickly for 1 minute to obtain a preform;
[0011] S2. Pour the prefabricated material into a mold for curing, and after demolding, obtain a sand barrier unit.
[0012] Furthermore, in S2, the curing time in summer is 24 hours, and the curing time in winter is more than 48 hours.
[0013] Furthermore, the block sand barrier unit is a polygonal column.
[0014] Furthermore, the length of the block sand barrier unit is 1 m, the width is 0.2 m, and the height is 0.2 m.
[0015] Furthermore, the diameter of the hole of the first building block is 0.1m.
[0016] Furthermore, the diameter of the hole of the second building block is 0.04m.
[0017] Another aspect of the invention discloses the application of a sand barrier for preventing and controlling sand in desertification control.
[0018] The sand barrier used for desertification control of the present invention is a grid further composed of a grid body formed by splicing block sand barrier units. The grid body is mainly used to block the fixed diverted wind and sand, so as to achieve the purpose of ultimately stabilizing and fixing the quicksand, thereby realizing effective protection against desertification. The block sand barrier unit can be formed once on site through molding and vibrating. The deadweight of the block sand barrier unit can effectively resist the wind and prevent the movement of sand dunes; the soil organic matter such as fly ash in the block sand barrier unit has an improving effect on the soil. The sand barrier described in the present invention not only has the advantages of simple structure, convenient construction, and long service life, but also can effectively prevent sandstorms and wind from damaging plants, thereby ensuring the safe growth and operation of plants. After the sand barrier accumulates to a certain extent, the sand barrier can be lifted up and reused, and the materials required for the sand barrier can be obtained locally. In addition, the present invention also has the advantages of environmental protection and energy saving, which is in line with the current trend of sustainable development in society.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] The sand barrier of the present invention is a grid formed by splicing a plurality of grid bodies, and the grid bodies are spliced by a plurality of building block sand barrier units. A first building block hole is opened on the top of each building block sand barrier unit, and the first building block hole is filled with soil organic matter and inoculated with sand-dwelling plants. The building block sand barrier unit can be vibrated on-site through a standard part model and cured in one time. The building block sand barrier unit is made of aeolian sand, brackish water, fly ash, and cement. It is simple to operate and can be made on-site, which can reduce the cost of long-distance transportation and avoid damage in extreme environments. The building block sand barrier unit can also fix the grid by its own weight. The environment in the first building block hole provides a microenvironment for the development and growth of sand-dwelling plants, increases the survival rate of sand-dwelling plants, and the first building block hole has a rain-collecting effect. Under the protective effect of the hole of the building block sand barrier, the sand-dwelling plants inoculated in the hole have a higher survival rate. The sand barrier of the present invention has a long service life. After the sand accumulates to a certain extent, the sand barrier can be lifted up and reused. The materials needed for the sand barrier can be obtained locally, thereby achieving the purpose of controlling sand with sand and reducing the cost of controlling sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a first structural diagram of the present invention.
[0022] Figure 2 This is the second structural diagram of the present invention (the sand-dwelling plants are not shown in the figure)
[0023] Figure 3 This is the third structural diagram of the present invention (the sand-dwelling plants are not shown in the figure)
[0024] Figure 4 It is a structural diagram of the building block sand barrier unit of the present invention.
[0025] Figure 5It is a front view of the building block sand barrier unit of the present invention.
[0026] Figure 6 It is a top view of the building block sand barrier unit of the present invention.
[0027] Figure 7 It is a side view of the building block sand barrier unit of the present invention.
[0028] The names corresponding to the reference numerals are:
[0029] 1-grid, 2-sand-dwelling plants, 3-block sand barrier unit, 4-hole of the first block, 5-hole of the second block. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.
[0032] The present invention provides a sand barrier for preventing and controlling sand, wherein the sand barrier is a grid formed by splicing a plurality of grid bodies 1; the grid body 1 is spliced by a plurality of sand barrier units 3; a first block hole 4 is provided on the top of each sand barrier unit 3, the first block hole 4 is filled with soil organic matter and planted with sand plants 2; a second block hole 5 is provided inside each sand barrier unit 3, and each sand barrier unit 3 is spliced and fixed through the second block hole 5. The sand barrier composed of the grid of the present invention can block and fix the diverted wind and sand, achieve the purpose of ultimately stabilizing and fixing the quicksand, and realize effective protection against desertification. The deadweight of the sand barrier unit 3 can effectively resist the wind force to fix the grid body and prevent the movement of the sand barrier. The first block hole 4 of the sand barrier unit 3 is filled with soil organic matter and planted with sand plants 2, and the soil organic matter provides a microenvironment for the growth of the sand plants 2 inside, and the growth can effectively prevent the inoculated sand plants 2 from being damaged by the wind force.
[0033] The sand barrier provided by the present invention not only has the advantages of simple structure, convenient construction, long service life, etc., but also can effectively prevent sandstorms and wind from damaging plants, ensuring the safe growth and operation of plants. After the sand barrier accumulates to a certain extent, the sand barrier can be lifted up and reused. The materials needed for the sand barrier can be obtained locally. It also has the advantages of environmental protection and energy saving, which is in line with the current trend of sustainable development in society.
[0034] Preferably, corn stalks are mixed in the soil organic matter, and corn stalks improve soil structure, increase soil fertility and microbial activity, and provide a better growth environment for the sand-dwelling plants 2. Preferably, the sand-dwelling plants 2 are crusting organisms, and the crusting organisms have better ability to prevent wind and fix sand and retain soil moisture. More preferably, the crusting organisms are one or more of Chlamydomonas, Nostoc, and Microcoleus. The above crusting organisms all have good sand-prevention and sand-fixation effects, and when the above crusting organisms form a certain scale, they can work together to prevent sand and fix sand.
[0035] The grid of the present invention can be spliced according to the actual area of the area to be treated, and is flexible and practical to use.
[0036] like Figure 1 As shown, it is a first structural diagram of the present invention, wherein the sand barrier is a square grid formed by splicing a plurality of square grid bodies 1, and each square grid body 1 is spliced by four building block sand barrier units 3. The sand barrier structure is suitable for most governance areas, and the splicing is simple and the splicing speed is fast.
[0037] like Figure 2 As shown, it is a second structural diagram of the present invention, wherein the sand barrier is a grid formed by splicing a plurality of hexagonal grid bodies 1, wherein the hexagons are non-regular hexagons, and each hexagonal grid body 1 is spliced by six sand barrier units 3. The corners of the hexagonal grid body 1 facing the windward side are acute angles, which can more effectively resist wind force and fix the grid body, and is suitable for treatment areas with strong wind force. In particular, the sand barrier units 3 of the outermost blocks of the sand barrier cannot form a closed hexagonal grid body 1.
[0038] like Figure 3 As shown, it is the third structural diagram of the present invention, the sand barrier is a grid formed by splicing a plurality of octagonal grids 1, the octagon is a non-regular octagon, and each octagonal grid 1 is spliced by eight sand barrier units 3. The side of the octagonal grid 1 facing the windward side is perpendicular to the windward side, which can provide a larger wind resistance surface and a fixed grid, and is suitable for management areas with strong winds. In particular, the outermost sand barrier units 3 of the sand barrier cannot form a closed octagonal grid 1.
[0039] In some embodiments of the present invention, Figure 4 to Figure 7As shown, the sand barrier unit 1 is a polygonal prism, preferably a hexagonal prism. More preferably, the sand barrier unit 1 is 1 m long, 0.2 m wide and 0.2 m high.
[0040] In some embodiments of the present invention, Figure 4 to Figure 7 As shown, the diameter of the first block hole 4 is 0.1 m. Preferably, there are two first block holes 4 and they are symmetrical about the long side of the block sand barrier unit 1.
[0041] In some embodiments of the present invention, Figure 4 to Figure 7 As shown, the diameter of the second block hole 4 is 0.04m, and at least one second block hole 5 is provided inside the block sand barrier unit 1. The second block hole 5 runs through the entire block sand barrier unit 1. Two contacting block sand barrier units 3 are spliced and fixed by inserting pins in the second block hole 5 or inserting or filling other structures with connecting functions.
[0042] In some embodiments of the present invention, the block sand barrier unit 1 is prepared from aeolian sand, brackish water, fly ash, and cement in a mass ratio of 0.75:0.15:0.03:0.07.
[0043] The preparation method of the building block sand barrier unit 1 is as follows:
[0044] S1. Pour aeolian sand, fly ash and cement into a mixer, dry mix for 5 minutes, then add brackish water and stir slowly for 3 minutes, then stir quickly for 1 minute to obtain a preform;
[0045] S2. Pour the prefabricated material into a mold for curing, and after demolding, obtain the sand barrier unit 1.
[0046] Preferably, in S2, the curing time in summer is 24 hours, and the curing time in winter is more than 48 hours.
[0047] The sand barrier unit of the present invention can be formed in one step on site by molding and vibrating, is easy to manufacture, can reduce the cost of long-distance transportation, and avoid damage in extreme environments. The fly ash in the sand barrier unit 1 improves the soil, increases soil fertility, and promotes the growth of sand plants.
[0048] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting them, and certainly not limiting the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In other words, any changes or modifications made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention in other related technical fields is also included in the patent protection scope of the present invention.
Claims
1. A sand barrier for preventing and controlling sand, characterized in that: The sand barrier is a grid formed by splicing a plurality of grid bodies (1); the grid body (1) is formed by splicing a plurality of building block sand barrier units (3); a first building block hole (4) is opened on the top of each building block sand barrier unit (3), and the first building block hole (4) is filled with soil organic matter and planted with sand plants (2); a second building block hole (5) is opened inside each building block sand barrier unit (3), and each building block sand barrier unit (3) is spliced and fixed through the second building block hole (5).
2. A sand barrier for preventing and controlling sand according to claim 1, characterized in that: The sand barrier block unit (1) is prepared from aeolian sand, brackish water, fly ash and cement in a mass ratio of 0.75:0.15:0.03:0.
07.
3. The sand barrier for preventing and controlling sandfall according to claim 1, characterized in that: The preparation method of the building block sand barrier unit (1) is as follows: S1. Pour aeolian sand, fly ash and cement into a mixer, dry mix for 5 minutes, then add brackish water and stir slowly for 3 minutes, then stir quickly for 1 minute to obtain a preform; S2, pouring the prefabricated material into a mold for curing, and obtaining a sand barrier block unit (1) after demoulding.
4. A sand barrier for preventing and controlling sandfall according to claim 3, characterized in that: In S2, the curing time in summer is 24 hours, and the curing time in winter is more than 48 hours.
5. The sand barrier for preventing and controlling sandfall according to claim 1, characterized in that: The building block sand barrier unit (1) is a polygonal column.
6. The sand barrier for preventing and controlling sandfall according to claim 1, characterized in that: The block sand barrier unit (1) has a length of 1 m, a width of 0.2 m and a height of 0.2 m.
7. The sand barrier for preventing and controlling sandfall according to claim 1, characterized in that: The diameter of the first building block hole (4) is 0.1 m.
8. The sand barrier for preventing and controlling sandfall according to claim 1, characterized in that: The diameter of the second building block hole (5) is 0.04 m.
9. Use of the sand barrier for preventing and controlling sand according to any one of claims 1 to 8 in desertification control.